Mazda CX-5 2019

I am reporting a safety defect in my 2019 Mazda CX‑5 involving the heated seats and airbag system. The vehicle was bought certified pre‑owned with a warranty up to 100,000 miles included in the sale. Around March, at about 82,000 miles, the heated seats began causing electrical problems, and I was told this fault could affect the airbag system and that the airbags might not deploy in a crash. I have taken the car to a Mazda dealer four times and the issue has not been fixed; the dealer disconnected the heated seats and now claims they are “aftermarket,” even though they were on the car when I bought it and were never disclosed as aftermarket. I am now at about 87,000 miles, still within the warranty, and facing a large repair bill while Mazda corporate and the dealers refuse to correct this safety‑related defect under warranty. I am asking NHTSA to record this complaint and consider investigating similar issues with Mazda heated seats and possible airbag non‑deployment.

My vehicle started smoking and I smelled a oil burning smell coming through the vents. I took it to the Mazda dealership and they diagnosed it with a cracked cylinder head. The repair estimate is $4,900. It is a 2019 with less than 60,000 miles, but it is a few months out of the powertrain warranty. However, this is a KNOWN issue to Mazda. As I have been researching online, many Mazda CX-5 owners have reported the same issue and I believe Mazda has traced it back to defective manufacturing in a batch of these parts. My local mechanic has also told us that he has seen this issue with 2019 Mazda CX-5s and recommended we report them. Mazda SHOULD issue a recall, but I understand that is expensive for them. At the very least, they should alerting drivers to this possibility and voluntarily repairing these cylinders without cost to unsuspecting drivers who could end up with an engine fire. I have submitted a complaint to Mazda customer service and I am awaiting a response.

While driving on the highway with very light snow falling and less than an inch of wet on the road, the "front radar blocked" message appeared! Upon later research into the Mazda owner's manual it indicates the following systems were not functioning: Mazda radar cruise control (mrcc) Mazda radar cruise control with stop & go function (mrcc with stop & go function) distance recognition support system (drss) Smart brake support (sbs) apparently the location of the front radar is behind the emblem in the center of the grill. Mazda recommends that the owner clean off the emblem of any dirt or snow to correct this problem. Driving on the highway it is not practical to pull over and clean off the emblem when it will happen again in these conditions. This is a serious design flaw that can lead to accidents. The front radar should be relocated in a location not subject to road splatter. It could be located with the other sensors behind the mirror in the middle top of the windshield.

The contact owns a 2019 Mazda CX-5. The contact stated that while driving up on incline at 45 MPH, the engine shut off with the check engine warning light flashing on the instrument panel. Despite the failure, the contact was able to pull the vehicle off to the shoulder of the road. Due to the failure, the vehicle was towed to the residence. The following day the vehicle was towed to an independent mechanic; however, the mechanic was unable to duplicate the failure. The mechanic replaced the spark plugs and the ignition coil. The mechanic referred the contact to the dealer for additional assistance. The contact drove the vehicle to the dealer with an abnormal rumbling sound coming from the vehicle. While at the dealer, the dealer was unable to determine the cause of the failure. The contact was provided an estimate for repairs unrelated to the failure. The manufacturer was notified of the failure and provided a case number. The vehicle was not repaired. The failure mileage was a 129,000.

The driver's side mirror would vibrate excessively at high speed. The car was taken to two different dealership but they couldn't figure out how to fix that. 2019 CX5 exhibits an excessive vibration from the driver-side power door mirror glass when the vehicle is driven at high speeds. This concern May be due to a lack of rigidity of the mirror base so the mirror vibrates when it receives vehicle vibration or wind pressure. With the weather warming up, stuff inside the door panels is expanding which magnifies the vibration issue. Vibration noise is getting worse coming from both door panels when the car hits a crack, bump, pothole, or when the radio is on. Mazda corporation lacks integrity and refuse to admit that they have a serious issue due to their poor quality control. This is isn't a new problem. 2013-2015 CX-5 had same issue with driver's side mirror vibration but they issued a recall and the problem was from the door panel which lacked support and was poorly made in the 1ST place.

While driving, I received a warning that the engine in my car was overheating. Upon arriving home and parking, I noticed pooling under the car. My car was due for an oil change so the next day I dropped off the car for the oil change and mentioned the overheating message and leak to the technician thinking the fix would be routine. To my surprise, I was told my vehicle had a serious coolant leak related to a cracked cylinder. I was advised to take the vehicle to a Mazda dealer. Morrie's Mazda in Minnetonka, MN confirmed the cracked cylinder head which required a full engine replacement despite the car being only ~5 years old and having ~63,000 miles. Mazda had issued a technical service bulletin on this issue but had not issued a recall. As a result, I was left with a large repair bill to replace the engine in a relatively new car. This is a serious issue and I feel Mazda put my life and others in jeopardy by not recalling vehicles and letting customers drive with the risk of the engine overheating.

As I was driving, a burning smell emanated from the car. There were no check engine lights on. When I pulled over, I saw a lot of smoke coming from the engine. I checked the oil level and it was above the minimum line bit just barely, even though my husband had just done an oil change on it. I refilled the oil and continued on my trip. The problem repeated for several dqays until I got home and took it to the Mazda dealership. They reported the following: "Cylinder Head Assembly: oil leaking out of back of head, recommend replacing cylinder head and related gaskets. The cylinder head sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket. In most engines, the head also provides space for the passages that feed air and fuel to the cylinder, and that allow the exhaust to escape." This service is $5600! My car only has 80K miles on it. This is a safety issue because there was no warning. No check engine light appeared and there was no warning.

Good afternoon. I am reporting an incident that occurred on December 29, 2024. I was driving my 2019 Mazda Cx-5 and I was about to make a left turn. However, as I was making the left turn, I received a notification on my dashboard about a "Forward Smart City Brake Support Malfunction" (a photo of the notification will be included). My car instantly lost control and it did not stop until it collided with the street curb of the road I was attempting to turn on. Fortunately for those around me, my car did not collide with any other vehicles on the road. However, this collision caused damage to the right side of the vehicle, as the right airbag of the vehicle had deployed. I believe that this is a very significant problem that should be looked into as soon as possible. If my car were to hit other drivers on the road, it could have led to a very tragic incident. As far as repairs go, I wanted to wait and see how this complaint would carry out. I do not believe that it would be fair for me to pay repairs for an event that was out of my control. Thank you.

My 2019 Mazda CX-5 cylinder head cracked at only 60,000 miles. I noticed my breaks were smoking and stopped driving. I then noticed oil leaking from my engine which had blown into my breaks, causing the smoke. There was no check engine indicator on my dashboard, nor did it indicate that my engine had overheated. There was no indication that there was any issues with the vehicle until i noticed the smoke coming from my brakes. I towed the vehicle to the Captial Mazda Dealership in San Jose, CA. Per Mazda Dealership Repair Estimate: "cylinder head cracked by cylinders 2 and 3". When i asked the dealership service center why this happened, their only response was it was a engine failure and that "over time the cylinder can become warped and crack" and while it that doesn't happen often "it can happen" I asked if there was anything I did that caused this, their only response was "i can check with the technician again". Apparently I did not purchase the "extended warranty" so while the repairs are no fault of my own, I have to pay the $6,000 repair cost.

The cylinder head on my 2019 Mazda CX-5 failed prematurely due to a known defect. The vehicle is currently at Fred Beans Mazda in Mechanicsburg, PA, where the issue has been diagnosed and confirmed. The defective component is available for inspection upon request. This failure created a serious safety risk due to an oil leak, which led to smoking from the engine bay and a potential fire hazard. If the oil had ignited, this could have caused severe vehicle damage or injury. Additionally, the failure could lead to a sudden loss of power while driving, increasing the risk of an accident. The problem has been reproduced and confirmed by the dealership, and Mazda has been contacted regarding assistance. They have acknowledged the issue but have not provided full coverage for the repair. Prior to the failure, there were no warning lights or messages. The only symptom was an oil leak, which led to smoke coming from the engine. This issue appears to be a common problem with this model, and Mazda should take responsibility for addressing it properly before it causes serious harm.

This concerns a 2019 Mazda CX5 with approximately 52,000 miles - the engine of this vehicle is the 2.5L naturally aspirated version. Driving the vehicle with the HVAC system on resulted in a burning oil smell coming through to the cabin. Upon owner inspection, engine oil was seen as coating the underside of the vehicle in various areas. The oil pan drain plug and oil filter were both found to be tight and not leaking oil. The vehicle was taken to a nearby Mazda dealership for inspection on 2/26/2025. On 2/27/2025, Mazda technicians state that the cylinder head on the vehicle engine requires replacement. Replacement is quoted to be in excess of $5000. Reviewing the issue online shows numerous similar cases of engine cylinder head failure. This vehicle comes equipped with cylinder deactivation which seems to have a higher rate of failure regarding cylinder heads and a potential design flaw with cylinder heads manufactured in a time frame of 2018-2020. Leaking oil could potentially start a fire as the oil drips onto the exhaust manifold when the car is at operating temperature.

My infotainment system regularly ghost jumps between screens and adjusts the volume of music (both on CarPlay and regular radio) by itself. The car turns off CarPlay regularly, including the navigation, which is dangerous when you are not sure where you are going. The sound is the worst part of it, as it will change the volume to unhealthy levels without warning. Even turning it off does not stop the jumping, as it turns itself back on. While Mazada did provide an extended warranty for this exact problem, they will not cover the display which they allege is the problem in my car and told me it is a $600 replacement fee that I am fully responsible for, even though their screen does not work. This issue is all over the internet with Mazda refusing to fix it but it's an issue that can cause serious safety issues (with navigation failing and especially with unexpected volume changes). There is no rhyme or reason to when it happens and when it doesn't. It will be fine for a few days and then not work at all for a day. This has been ongoing for about a year. My car has about 55,000 miles on it.

There was a warning "chime" and then this message appeared on the instrument panel. "Front Radar Malfunction". The car was in the left lane on the PA turnpike going approximately 73 miles per hour. The car immediately began a rapid deceleration after the warning "chime". Automatic braking activated. The driver could not accelerate. Traffic was heavy with a trailer truck to the right and cars behind. There were no vehicles in front of the decelerating car. The vehicles behind were able to slow and avoided collision. We were forced to pull over in a very narrow center medium next to a large concrete divider. It was a very dangerous place to stop. The engine was turned off for approximately a minute. When it was started there were no messages and the driver had full control of the car. The car is available for inspection. The dealer will be contacted tomorrow. The car has been in service for 23 months and has been driven 12,200 miles. The road surface was wet from recent rain and the car had been driven through a downpour with water pooling on the road approximately 15 minutes before this incident.

I developed a cracked cylinder head in my 2019 Mazda CX-5 that only had 33,000 miles on it. I lost approximately 50% of my oil in a 4 mile drive. I believed I had been leaking oil, checked the dipstick, drove 4 miles (max speed of 35 mph), smelled the burning oil, pulled over, saw smoke coming from the hood and checked the dipstick again. Losing this much oil is a safety risk with the possibility of a fire especially if driving at a faster speed and inability to have a safe place to pull over along with smoke from the burning oil causing visibility issues which at higher speeds such as on an interstate can cause a safety concern. No indicator lights/messages appeared, this was determined from seeing what I thought was oil on the ground and then checking the dipstick. Mazda is well aware of the issue. When picking up the car for the dealership after being fixed, I asked what kind of parts were used to ensure this does it happen again. The shop employee said they were “revamped” parts due to the known issue with this model and pointed out 4 other Mazda cx5s currently in the shop with the same issue getting repaired.

I am the owner of a 2019 Mazda CX-5 with approximately 50,000 miles. I am experiencing an active engine oil leak accompanied by a burning smell and visible smoke from the engine compartment. This is consistent with a cracked cylinder head assembly — a known manufacturing defect in 2018–2021 Mazda CX-5 vehicles documented in Mazda's own Service Alert SA-031/21, which Mazda characterizes as a fire hazard. Despite this, Mazda has extended warranty coverage only to turbo-equipped models (Program CSP11), leaving non-turbo owners with the identical defect unprotected. At only 50,000 miles, this is a premature failure caused by a manufacturing defect — not normal wear and tear. Oil leaking onto a hot exhaust manifold constitutes a serious fire risk to vehicle occupants and the public. I am requesting that NHTSA investigate this pattern of failure across 2018–2021 Mazda CX-5 non-turbo models and consider whether a formal recall is warranted. I have contacted Mazda North American Operations directly requesting goodwill warranty coverage and have a case number on file. I have yet to hear a response but was initially informed my car was out of warranty.

In August 2025, we brought our Mazda CX-5 (non-turbo engine) to a Mazda service center and paid nearly $3,000 for repairs, including replacement of belts and other related service. Despite this, we continued to experience a burning smell from the vehicle. Shortly thereafter, the problem escalated — the burning smell persisted and smoke began to appear. Mazda is now demanding an additional $4,500 to replace a cracked cylinder head. This defect must have been present when the car was serviced in August, and the initial repairs failed to identify or correct it. While there is an NHTSA Technical Service Bulletin for the turbo version of this engine, there are numerous complaints online about the same defect in the non-turbo model, which is what we own. This indicates that the problem is not isolated. Mazda should be held responsible for this safety issue. A cracked cylinder head that leads to burning smells and smoke is a serious hazard that could cause engine failure or even fire. Consumers should not be forced to spend thousands of dollars on repairs for what appears to be a widespread defect and when our vehicle has only $50k miles and it should last for the life of the vehicle.

Drove 39 miles, around ~55 minutes. Parked the car, realized that I parked a little too far from the spot, car just stalled while rolling. Pressed accelerator, nothing. Turned off the car, tried to start again, it cranked but didn't start. Had to tow it to the nearest mechanic (total of ~2 hrs until my car got picked up and dropped off), mechanic calls me and tells me my car started fine. I'm thinking it could be 5321K recall but not sure as my VIN is not in the recall nor did I get any recall notice. What component or system failed or malfunctioned, and is it available for inspection upon request? - No idea. How was your safety or the safety of others put at risk? - Got stranded for hours in the parking lot. Has the problem been reproduced or confirmed by a dealer or independent service center? - No Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? - No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? - Yes, fuel cap like icon and check engine light were on when trying to start the car after it stalled. The car would crank but not start.

While driving down the road my Mazda CX-5 continues to just stall and the engine light turns on and the safety features turn off. I was driving down a road in town and the engine started stalling as I came to a red light and slowed the engine shut off and I was almost hit from behind. It took several attempts at starting before the car would start. This has now happened for the past 3 days and is happening more and more frequently. I do not have any other means of transportation and after attempting to get the dealership to check due to the recalls on the Mazda CX-5 for fuel pump failure and the mechanic saying it appears the fuel pump is bad the dealership refuses to attempt any repair because the VIN is not listed in the recall at this time. This is a severe safety problem because if it stalls in traffic I will be in an accident as I have no ability to maneuver the vehicle when it stalls to get out of the way of vehicles approaching. If this issue isn't resolved it is going to cause injury to myself or others. People have had to swerve into the path of other vehicles to keep from hitting me when it stalls, which is eventually going to result in harm to others and/or myself and family.

This report is for a 2019 Mazda CX-5 with the Naturally Aspirated/Non-Turbo engine. This vehicle only has 26,500 miles and has developed a major oil leak from a cracked Cylinder Head. The continued safety of the vehicle has been degraded. The engine could seize while driving making the vehicle inoperable while on roadways. The vehicle has been inspected and confirmed by both an independent service center and by an authorized dealer service center. The only warning lamp that appeared was a low oil light. I immediately pulled over for safety and inspected the oil levels of the engine. I determined the engine oil levels were just below the fill line on the dip stick. I then added approximately half a quart of recommended oil and the oil warning light turned off. I then contacted a local service center for diagnostics of the problem. They determined the cause of the oil leak which was a Cracked Cylinder Head on the Engine. I then drove the vehicle to an authorized Mazda service center at the dealership. They also diagnosed the problem as a Cracked Cylinder Head on the Engine. Both the independent service center and the authorized Mazda service center recommended a full Engine replacement.

The center infotainment system operates by itself when driving at a low speed. The screen will automatically enter menus, place calls, and select items without any sort of input from the driver or passenger (ghost touch). The control knob, which is used to navigate the center screen, will not be functional whenever this happens. This ghost touch issue happens periodically, sometimes it goes away and sometimes the problem returns. Whenever the screen places calls or enters menus by itself, the driver is being distracted from the road and will have to focus on canceling whatever action the infotainment automatically decided to do. For example, I use Apple CarPlay for navigation but sometimes the screen will operate other functions by itself - I will have to manually click back to the navigation screen every time. A similar issue was found in the 2014-2016 MY of the Mazda3, which uses the exact same infotainment and controller setup as in the CX-5 products. I have provided a link to the relevant service bulletin here: https://static.nhtsa.gov/odi/tsbs/2019/MC-10164268-0001.pdf The system has not been examined by the manufacturer nor have there been any types of warning messages or lamps within the vehicle.

The 2019 CX-5 AWD with the 2.5L NA engine (with Cylinder Deactivation) has an engine oil leak coming from the cylinder head area. The Mazda dealer confirmed the leak source and found burnt oil on the exhaust. The component is available for inspection. The leak location and symptoms are consistent with the known porous/cracked cylinder-head defect documented in this engine family. Full confirmation requires teardown. In early Dec 2025, a burning oil smell began, then thick white smoke came from under the hood while driving and after stopping. This created an immediate fire risk, and rapid oil loss could cause sudden engine failure or stall in traffic. The issue was inspected and confirmed by an independent mechanic, who noted the leak could only be traced after removing the exhaust manifold. The Mazda dealership then inspected it and confirmed the leak source at the cylinder-head area and the burnt oil residue. The problem has been reproduced and confirmed by both the independent mechanic and the Mazda dealer. No warning lights or messages appeared prior to the smoke. Mazda has an extended warranty program for the same cylinder-head defect on the Turbo engine, but no equivalent coverage exists for the NA engine, despite the identical safety risks.

Coolant leaks at cylinder head on 2019 Mazda CX-5 Grand Touring Reserve. Mazda North American Operations released a technical service bulletin (01-013/21) regarding 2016-2020 Mazda CX-5, CX-9, and Mazda6 with SKYACTIV-G 2.5T engines. This issue can cause the engine to leak coolant, overheat, and stall, potentially leaving the driver and passengers stranded in an unsafe location. Mazda is aware of this manufacturing defect but has not recalled these engines to be repaired or replaced if they are outside of their manufacturers warranty period and placing costly repairs and potentially life-threatening situations as the responsibility to their customers. The diagnosis to repair this issue is a replacement of the cylinder head/sleeve or replacement of the engine block, which has since been modified by Mazda to resolve this issue. This is a costly repair for diagnostics, labor hours, and parts and Mazda is refusing to be held responsible for these defects outside of the power train warranty period. Mazda customer support advised this will only be potentially covered if diagnostics are completed at a Mazda dealership and does not provide any assistance if the customer uses a non-Mazda affiliated repair shop. Messaging on the dash console advised excessive heat and thermostat was nearing 260°F

I started to smell a burning smell while I was driving and noticed smoke coming from under the hood along with the burning smell. When I parked the car I noticed a bunch of oil leaking from under the car. I took the car to get checked out and there was oil all under the bottom of the car and it was confirmed that there was a very bad oil leak which occurred due to a crack in the cylinder head. No check engine lights or any indication of this issue aside from discovering the burning smell, smoke from under the hood, and a significant amount of oil underneath the car. The car hasn’t been driven in a month because of this issue. When you turn the car on you can hear a ticking sound coming from under the hood. The bad part is there was no indication. A 2019 with 50,000 ish miles shouldn’t have this problem and I confirmed that with mechanics and Mazda. This is a safety risk as you can’t safely drive the car without being concerned about the lack of oil in the car due to the leak as well as the smoke coming from under the hood, not being able to drive the car thus resulting in needing the car towed in order for the car to be serviced for this problem. I was told that if the oil continues to leak and if I was to drive it the engine could start to have issues and possibly turn off due to the leakage. This leak had oil all over the exhaust system as well.

I was driving on the highway, at about 65 mph. The engine lost power and the car began to slow down. It did not respond to the accelerator, but the power was still on. I was lucky enough to be able to pull over to the shoulder without colliding, but it was extremely fortunate that no cars were obstructing me at the time. I put the car into park once stopped and turned the engine off. I tried to restart but the engine did not turn over and several warning signs came up on the dash and the car emitted irregular dinging/beeping noises before going silent (I do not recall specifically, but I believe the check engine and/or battery indicator lights came on) The hazards worked, also the interior lights. But I was stranded in a remote area in complete darkness on a very narrow shoulder with large trucks whizzing by. A CHP officer appeared eventually and expedited a tow truck, which brought me to the nearest Mazda dealership 100 miles away. It was midnight by the time we arrived. Both the tow truck driver and the technician (the next morning) were both unable to jumpstart the car. Engine would not turn over at all. The technician opened up the engine and sent reports to Mazda. We are waiting to hear back but they would not give me a loaner vehicle without knowing the cause of the failure. Very relieved I was not hurt but also very upset at the chance I could have been.

My 2019 Mazda CX-5 started to smoke from the engine and I could smell oil burning. My car was due for an oil change so I brough it to a mechanic. After a diagnostic, they determined that there was a major oil leak and that the cylinder head was cracked and suggested I take it to the dealership. I did and they confirmed that there was a cracked cylinder head causing the massive oil leak. The technician even said in a video sent to me that the oil is leaking "in the same place as the others". I was then quoted 5,960.75 to make this repair. I did research and found that this is a manufacturing defect that is long known to Mazda. There is a TSB and a CPS that extends the warranty for this issue but only for turbo engines, not my non-turbo engine. My car is 2 years past the warranty but I only have 32K miles on it. I asked if Mazda could cover all or some of the cost since it is a defect, not caused by anything I did or didn't do. I was then told that because I didn't take my car there regularly for service, that they wouldn't cover it. I regularly took my car in for oil changes and other maintenance to a local shop as the nearest dealership was almost 30 miles away so it was very inconvenient. It's outrageous that Mazda won't issue a recall or extend the warranty for the same issue in the non-turbo engines. Asking me to pay 6K for a defect they caused is unconscionable.

On May 11th I was driving my 2019 Mazda CX-5 with approximately 35,000 miles when my cabin filled with the smell of gasoline. The smell became overwhelming within minutes, causing concern for my safety and the safety of other drivers. I immediately drove to the closest auto repair/body shop for an emergency inspection. Upon inspection, the technicians discovered there was a "crack at rear cylinder head and leaking oil excessively. Oil is leaking on to hot exhaust manifold....car is not safe to drive since oil leak is excessive". I was advised that this must be a manufacturer defect as you should not see this issue at such low mileage. The vehicle was then towed to the nearest Mazda dealership/service center, where a cracked rear cylinder head was diagnosed and confirmed. I was informed that continued operation of the vehicle could have resulted in catastrophic engine failure, engine seizure, fire risk from leaking oil contacting hot engine components, or sudden loss of power while driving, creating an extremely dangerous driving situation. Prior to the failure, there were no major warning indicators other than the sudden strong fuel/oil smell. The issue occurred unexpectedly despite the vehicle being properly maintained and having low mileage for a major engine failure. I have been the sole owner. The vehicle is currently available for inspection upon request.

My 2019 Mazda CX-5 suddenly developed a major oil leak within the last 7 days. My car has only 44,350 miles and I have had all scheduled and required maintenance completed timely, including oil/filter changes, coolant level checking and maintenance, etc. I took the car to an independent mechanic who diagnosed the problem as a cracked cylinder head. I then took the car to a local Mazda dealer who confirmed the diagnosis and informed me that there would be no warranty coverage as my 60,000 mile/60 month powertrain warranty had expired 60 days earlier. Some two years earlier my car's check engine light came on and overheated. I took it to the same local dealer, who replaced the coolant control valve & related components. In November 2024 I received a "Warranty Extension Program" letter from Mazda about the same fail-safe thermostat problem. I believe this is relevant and related to the cracked cylinder head since almost all instances of a cracked cylinder head are due to engine overheating. This issue put me at risk as I was close to driving the car with no oil and oil leaking heavily onto very hot engine components that could have resulted in a fire. I am now facing repairs to this car between $4,800 and $6,000 and given the faulty/defective cylinder head from Mazda, I could face this safety issue again, as it will be replaced with a similar cylinder head from Mazda!

I am reporting a premature engine failure on my 2019 Mazda CX-5 with approximately 55,000 miles. The vehicle developed a significant engine oil leak that was diagnosed by a repair facility as a casting failure in the cylinder head behind the timing cover. Due to the location of the leak and the nature of the defect, the entire cylinder head assembly had to be replaced. The total repair cost was $5,262.32, which I paid out of pocket. The repair documentation indicates that Mazda has issued a Technical Service Bulletin addressing this condition, but there is currently no recall or warranty extension covering the issue for my vehicle. A cylinder head casting failure at such low mileage appears premature and not consistent with normal wear and tear on a properly maintained engine. An engine oil leak of this nature could potentially create safety risks, including oil contamination of engine components or the possibility of oil leaking onto hot engine parts. Because this issue appears to be documented by Mazda through technical service guidance and has resulted in a costly major engine repair at relatively low mileage, I believe it should be investigated to determine whether a broader manufacturing defect exists that could affect other vehicles. I am submitting this complaint so that the issue is documented and can be evaluated for potential safety concerns or a future recall if similar failures are occurring in other vehicles.

The touchscreen digitizer on the Mazda Connect infotainment system has developed a known defect causing constant phantom/ghost touch inputs. The screen registers random touches without any physical contact, causing the system to navigate through menus, change vehicle settings (including safety-related settings such as blind spot monitoring and heads-up display), exit navigation mid-route, change radio stations, and initiate phone calls to contacts without driver input while connected to Apple CarPlay. This is a significant driver distraction and safety hazard. When the system begins making random inputs, the driver must divert attention from the road to attempt to regain control of the infotainment system or end unintended phone calls. The issue occurs most frequently when the vehicle is stopped or at low speeds but also affects the system while driving. This is a well-documented hardware defect affecting 2017-2020 CX-5 models, acknowledged by Mazda under TSB 09-003/22. The cause is a failing touchscreen digitizer, not a software issue. Mazda has not issued a formal recall despite widespread reports. The component is available for inspection upon request. The vehicle has not yet been inspected by a dealer for this specific issue. No warning lamps or messages preceded the failure — the phantom touch inputs developed gradually and have worsened to the point that the infotainment system is nearly unusable. Current mileage is approximately 60,000-80,000 miles.

I had a flat tire on the front left corner of the vehicle while driving on a high speed highway. In my effort (and that of a wisconsin state trooper) to install the temporary spare tire I (we) discovered it would not Fit on the car. It seemed to be the wrong type for my vehicle. I had it towed to a nearby dealership and they too could not understand why the spare would not Fit. The mechanics best guess is that the brake caliper is to big for the spare preventing it from being installed. So they moved the left rear wheel to the front and installed the spare on the rear corner. Now let's be clear, I know and the dealership knows that putting the spare on the rear axle is the safest way to travel until a replacement tire is obtained. But, when you are stuck on a patch of asphalt between an exit ramp and the main thoroughfare with cars flying by you on both sides, as I was, you just want to get the hell out of there and not take any more time than necessary like rotating tires on one side of the car. I contacted Mazda about what happened and their answer was only put the spare on the rear axle citing an excerpt from the owner's manual. That statement in the manual only tells you it could be unsafe to put the spare on the front but nothing tells you it won't even Fit. Because of this little "design flaw" I was forced into a prolonged dangerous situation. Quite simply I should be provided a spare that will Fit every axle so I can get out of harms way as soon as possible.

Tuesday, 5/3, I was parking my car in the New Leaf Grocery parking lot in Aptos, CA. I pulled into the lot and made slow right into an available space. I had my foot on the accelerator, tapped down on it gently to ease into the space. My car lurched forward at such high speed that I was unable to remove my foot from the accelerator. I swerved to the right as the car went over a partition and hit another parked car on the other side of the partition. My airbag did not activate. I've replayed the experience in my mind and tried convincing myself that this could have been a matter of human error on my part. I am beyond convinced that what I experienced yesterday was a case of sudden unintended acceleration. I am concerned and afraid to drive my car now. Had circumstances been different, someone could have been killed. Had I not swerved right, I was headed to crash into a building. I called 911 and since no one was hurt there was no Police report. To address questions set-out above: Speed control (sudden unintended acceleration) and air bag failed My safety and the safety of others was put at risk As of yet the problem has not been reproduced however there are a great number of reports related to unintended acceleration (however not acknowledged as a problem by Mazda) I plan to have my Mazda inspected by a local dealership service center There were no warning messages or symptoms in advance of the incident occurring I've owned my Mazda for 3 years and never experienced anything like this. I have never had a car accident to date.

My car has an issue officially diagnosed by a reputable mechanic that matches the claim of the former TSB SA-058/20 that was changed and clarified through the now existing TSB SA-031/21. My car has a cracked cylinder head. This is the non turbo engine but it does have cylinder deactivation which his believed to be a culprit. The cracking is known to be caused by a manufacturing defect. There is an existing class action lawsuit regarding the turbo versions. There are complexities as to wh this lawsuit is on behalf of the turbo engines, and not the non turbo engines, however the same problems are well documented and widely acknowledged throughout hundreds if not more instances of people online and by Mazda's acknowledgment of the problem through the TSB's. This put me at great safety risk. I was driving north bound right beside semi trucks and busy traffic at speed limits of 70 mph when my engine started smoking. I was able to pull over and get it to a nearby mechanic. They officially diagnosed the vehicle w the cracked cylinder head matching the aforementioned TSBs. Mazda denied my goodwill case, even though it was made without complete information on my situation and car, despite my best attempts to get to the one representing my case with the dealership(I tried to reach him for 2 days with no success). Getting a repair from Mazda dealerships was inconvenient for my location and schedule, but I've always had my vehicle properly serviced. Mazda said this repair would cost near $7500. A mechanic quoted me at least the amount of $5500.

This is a complete electrical system failure. My screen continues scroll All Systems fails. At least it is not draining the battery again. I have had to replace the battery 2 times in the last 6 months. Maybe CarMax sold me a "lemon". . I received a recall notice, however when I spoke with the service department at the Bob Mazda dealership in Carlsbad and they told me that the recall on my vehicle is closed. I can come in for repairs, but at my own expense. I have only owned this vehicle for 6 months in which 2 months I was in the hospital recovering from a major surgery. When I get in my car and start it, if it starts the "blue" light is on every time, which is apparently Thermostat. After about 20 minutes or so the light turns off, sometimes 30 minutes. The next part is the scrolling malfunctions. It lists about everything on the car. I am [XXX] and live in Baja. I live in a very safe, gated with a security guard neighborhood, however I am scared of going any due to my car issues and being stranded. I also really need to cross the border to see my doctor but I am afraid. When you have to replace 2 batteries in 6 months and I have only driven under 5,000 since I purchased the car. Mazda needs to make me whole. My car also only has 24,000 and when I bought it had20,000 miles. There is something seriously wrong, actually multiple things are wrong with my 2019 Mazda. A person should never be afraid to get in the vehicle due to safety issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

1.January 2025 Diagnosis (Inside Powertrain Warranty): I presented the vehicle with severe transmission jerking and shift lurching. Your technicians applied a software flash to the PCM/TCM per TSB 05-004/23. Mazda’s official text states the root cause of this symptom is torque fluctuation and torsional resonance within the torque converter. 2.Current Symptom (Defect Manifestation): The vehicle now exhibits the distinct upshift chirp detailed in TSB 05-005/23 (NHTSA ID MC-10246127-0001). Mazda’s documentation states the root cause of this chirp is excessive wear of the lock-up clutch inside the torque converter, which sheds iron powder directly into the automatic transmission fluid (ATF). The torque converter is a single, closed mechanical component. In January 2025, while the vehicle was fully covered under the 5-Year/60,000-Mile Powertrain Warranty, the torque converter's internal clutch was already undergoing accelerated physical degradation. Instead of physically inspecting the transmission fluid for iron contamination as dictated by sound mechanical diagnostics, your service department applied an electronic software patch. This patch merely altered the lock-up engagement timing to mask the torsional resonance rather than fixing the failing hardware. Applying a temporary software patch that delays a catastrophic component failure past a calendar date does not absolve Mazda dealership or Mazda Corporate of liability for a pre-existing, documented defect. In addition there is numerous complaints related to same issue is being poped up online and it appears to be wide spread manufacturing defect problem.

The steering and braking systems on my vehicle malfunctioned after jumping my vehicle when the battery drained too far to start, or even power my cars baseline electrical systems. After jumping my car, I started backing out of my parking spot and when I turned the wheel it very violently jerked in a manner that could have hurt me if I'd been holding onto the wheel tighter. Around this same time I believe I recall the brakes automatically applying and halting the vehicle. I was too far out of my parking spot when this began occurring and had to try to maneuver into a different one, during this attempt both of the conditions described above reoccured several times. I eventually noticed that it only seemed to trigger when the wheel was at more extreme steering angles, by keeping the steering angle lower I was eventually able to maneuver into another spot without triggering the issues. After parking and letting the car run for a bit to recharge the battery I no longer experienced these issues. There were several warning lights related to roll stability control, lane departure monitoring before pulling out. The following warnings were present, but I'm unable to recall whether they displayed before I first hit the issues: Smart Braking Malfunction, Power Steering Malfunction, Transmission Malfunction, Check Engine Light. The vehicle has not yet been inspected by anyone, however I was able to find evidence of other people complaining about what sounds to be the same issue going back several years online. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving a short distance, my engine overheated and there was a strong burning smell. The cylinder head was cracked, causing a significant oil leak. The car is currently at the dealership but is available for inspection upon request. The defective cylinder head is leaking engine oil directly onto hot exhaust components. This creates an immediate risk of engine fire and causes smoke to enter the vehicle cabin, impairing visibility and driver health. The vehicle was diagnosed by an authorized Mazda dealership. They confirmed the cylinder head is cracked and requires replacement. My mechanic advised this type of leak could lead to engine overheating, sudden power loss, or potential fire risk and should not be driven. Mazda has issued prior Technical Service Bulletins and warranty extensions for similar cylinder head/manifold cracking issues on the 2.5L turbo engine, but no program exists for the non-turbo engine, despite identical problems. Mazda should be held responsible for this safety issue. Mazda is aware of this manufacturing defect but has not recalled these engines to be repaired or replaced if they are outside of their warranty period, placing costly repairs and potentially life-threatening situations on their customers. The repair is replacement of the cylinder head/sleeve or replacement of the engine block, which has since been modified by Mazda to resolve this issue. Mazda’s refusal to extend reimbursement to non-turbo owners is unfair and leaves affected customers with no support for a known manufacturing flaw. I urge NHTSA to investigate this recurring engine defect in non-turbo 2019–2020 Mazda CX-5 models and encourage Mazda to offer equal reimbursement.

On 12/10/25, my 2019 CX5 NA had major oil leak after smelling a burning smell for a few days. Took it into local mechanic and he couldn’t find the leak, did an engine wash and additional testing before identifying a crack in the cylinder head; the leak was coming from the exhaust manifold. There was oil all over the engine and the underbelly of the vehicle; according to the mechanic, I was lucky the car didn’t start on fire with the amount of oil. I was informed that this is a common problem with the turbos and the NAs but the extended warranty only included the turbo engines. Contacted Mazda customer experience and set up an appointment. Vehicle went to the Mazda dealership on 12/15 and it was confirmed that there was a crack in the cylinder head and received an estimate of $11,000 needed for repairs. $7000 of that was for a new cylinder head. This was after an independent mechanic inspected my vehicle and stated everything looked good besides the main issue and needing new rear breaks in the next few months. 12/15-contacted Mazda customer experience and and case file was opened. 12/16-contacted customer experience back due to not receiving a call and received the name and extension of the assigned case manager. 12/17- still had not received a call back and left voicemail for case manager. Requested a call back to myself and the dealership; received a call back a few hours later and I was never asked what happened but was informed that Mazda corporate could not help me due to the warranty being expired. I am now required to pay over $250 to the dealership for an inspection of the vehicle I never requested. There were initially no warning signs but then the low oil light came on after 3 days of smelling something burning.

Summary of Issue: The infotainment system in my 2019 Mazda CX-5 has been malfunctioning for a long period of time, and the issue has now escalated to the point where the system is unsafe and distracting while driving. Details: The infotainment screen intermittently “ghosts” and activates functions on its own—clicking through menus, changing settings, and moving erratically without any driver input. The system has also frozen and rebooted while the vehicle is in motion. This creates a serious distraction and safety concern. I previously reported this issue to the dealership, where they attempted a reset and told me to come back if the problem returned. The issue persisted and worsened. I recently returned, and the dealership diagnosed a communication failure between the CMU and the infotainment screen. However, they cannot identify any cause, and the screen itself has no physical damage and has never been struck. Mazda has declined to cover this under warranty, even though this appears to be an internal failure of components that should not fail at this mileage. Additionally, infotainment failures in Mazda vehicles have been the subject of prior complaints and service bulletins. Safety Concern: The malfunction causes the screen to operate unpredictably while driving, which distracts from the road and creates a risk of an accident. Because the system controls access to vehicle settings, Bluetooth, audio, navigation, and backup camera interfaces, the failure presents a potential safety defect. Requested Action: I am requesting that NHTSA investigate whether this infotainment / CMU communication failure is a broader defect affecting 2019 Mazda CX-5 vehicles, as dealerships cannot identify the cause and the failure poses a clear distraction hazard.

Question 1 - What component or system failed or malfunctioned, and is it available for inspection upon request? Answer 1 - The Engine Cylinder Head. The cylinder head developed a crack, causing a significant oil leak. The car is currently at the dealership but is available for inspection upon request. Question 2 - How was your safety or the safety of others put at risk? Answer 2 - The defective cylinder head is leaking engine oil directly onto hot exhaust components. This creates an immediate risk of engine fire and causes smoke to enter the vehicle cabin, impairing visibility and driver health. Additionally, the loss of engine fluids creates a risk of sudden engine failure or stalling at highway speeds. Question 3 - Has the problem been reproduced or confirmed by a dealer or independent service center Answer 3 - Yes. The vehicle was diagnosed by an authorized Mazda dealership. They confirmed the cylinder head is cracked and requires replacement. The dealership acknowledged the failure and offered a partial repair discount, confirming their diagnosis of the defect. Question 4 - Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Answer 4 - Yes. The vehicle has been inspected by an authorized Mazda dealership technician acting as a representative for the manufacturer. I have also escalated the issue to Mazda Corporate (case number can be provided upon request), who reviewed the dealership's findings but refused to cover the full repair cost. Question 5 - Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Answer 5 - I noticed an oil leak on my driveway. I noticed it and brought it in to be looked at the first week of November 2025.

The infotainment system is experiencing the "ghost touch" problem already identified by Mazda and there has already been a class action lawsuit won regarding this problem. I was not aware of this class action lawsuit or I would have participated to have my system repaired. My infotainment system is completely unusable and I have been told it is over $500 to repair/replace. I am the original owner of this vehicle. The system continuously beeps and changes all settings while I am driving. If I am using navigation, the screen switches to something else so that I can't see where I'm supposed to be going, causing undue slowing and or braking in city traffic. This is a safety problem. My infotainment system continuously goes into the settings and changes the navigation guidance volume and the car yells at me that, "NAVIGATION WILL BE AT THIS VOLUME." This has startled me and caused me to either swerve or brake abruptly due to being yelled at with out warning while alone in the vehicle. This is a safety issue. As a female who drives by alone 99% of the time, I have my doors set to lock and unlock in a specific manner to keep me safe. The system randomly resets all of these settings while I'm driving so I have no idea if the doors will be locked or unlocked and whether I will be safe when stopping in city traffic. This is a personal safety issue and causes undue stress. The system calls and hangs up on my family repeatedly, making them think that I am in danger or hurt. They try to call by and get hung up on. This is a safety issue because it causes distracted driving because I am focused on that problem instead of the road. All in all, the whole system is a safety problem and needs attention, especially since Mazda has already admitted to the problem.

My 2019 Mazda CX-5 (equipped with the 2.5L naturally aspirated SkyActiv-G engine with cylinder deactivation) has experienced a severe structural failure resulting in a cracked engine cylinder head. This casting defect allows pressurized motor oil to leak continuously from the cylinder head down onto the hot engine block and nearby exhaust components. This has led to the following severe safety risks: engine oil is leaking onto the exhaust manifold and creates an extreme risk of engine compartment fire when the vehicle is in motion; sudden loss of oil pressure or complete structural failure of the cylinder head can cause the engine to stall or seize unexpectedly without warning, completely disabling the vehicle in live traffic and creating an imminent crash hazard; and dropping oil levels and leaking fluids burning against the engine produce strong smoke and chemical odors that enter the cabin, which can cause driver distraction and severely limiting visibility if smoke escapes through the hood. We are also inhaling these odors. Mazda is fully aware of this structural engine defect and has detailed it internally under Technical Service Bulletin TSB #SA-031-21 (as well as related TSBs for oil seepage/leaks on these cylinder heads). Despite acknowledging the manufacturing flaw, Mazda has failed to issue a safety recall for this dangerous fire and stalling hazard, forcing consumers to drive unsafe vehicles or pay thousands of dollars out of pocket for a known defect. The vehicle currently has 62,317 miles. The crack and oil leak were officially diagnosed by the Carlsbad Mazda dealership service department on 5/26/26. I am requesting that the NHTSA launch a formal safety defect investigation into Mazda 2.5L cylinder head cracking to force a safety recall before this defect leads to a fatal fire or highway accident.

The engine cylinder head cracked and is leaking engine oil. This component is available for inspection at Liberty Mazda or by an independent certified mechanic upon request. The cracked cylinder head caused significant engine oil leakage, which created the following safety risks: Sudden loss of engine power or stalling while driving Smoke emission from the engine bay Potential fire hazard if leaking oil contacted hot engine components These conditions placed both the driver, passengers, and others on the road at risk. The cracked cylinder head and associated oil leak were diagnosed and confirmed by Liberty Mazda, the authorized dealership that performed prior repairs on this vehicle. The dealership documented the issue and provided a repair estimate of approximately $5,400. No independent service center has inspected the vehicle at this time. The vehicle and cylinder head have only been inspected by Liberty Mazda. Mazda Corporate has not physically inspected the vehicle, but all service records and documentation of prior repairs have been submitted to them during the warranty dispute process. There has been no inspection by police, insurance representatives, or other third parties May 2025: The vehicle intermittently struggled to accelerate. At that time, no dashboard warning lamps illuminated, and the dealership initially reported no issues. June 2025: Following the timing cover repair, the vehicle experienced engine oil leakage due to incorrect sealant installation, which was documented. February 10, 2026: The dealership repaired the oil pan seal and replaced the sealant, refilling engine oil. February 14–15, 2026: Approximately four to five days after the February 10 service, the cylinder head cracked, causing a significant oil leak. All symptoms and related service events are documented in Liberty Mazda’s service records.

The fuel low level light is not triggered until 12 miles or less of fuel remaining. The service bulletin provided by the dealership, med center Mazda in pelham alabama, shows that when the fuel gauge sender voltage from the rbcm and the fuel injection amount from the PCM both agree that 2,6 gallons remain the instrument cluster powers a transistor and turns the light on. In a discussion with the service advisor, we were trying to figure out if there are 2.6 gallons remaining then why the miles to empty does not register 30-50 based on the EPA ratings for the vehicle. We decided to disconnect the battery to clear any residual information in the computer and reset the average fuel economy system. While driving the Mazda CX-5 less than 24 hours after getting it back from the dealer service department, the fuel low level light did not illuminate until 6 (six) miles to empty. I exited the interstate and drove the vehicle about 5 miles to my home. The miles to empty read 0 (zero) when pulling in my driveway. I parked the Mazda and changed vehicles to complete my tasks for the day. Upon starting the Mazda the next morning, the miles to empty still showed 0 (zero) while also showing an average fuel economy at 24+ MPG. I then drove to the gas station where 13.573 gallons were required to fill the tank. That leaves approximately 1/10TH of a gallon until the car ran out of fuel, although I had only traveled 6-7 miles after the light came on. Bottom line: there was definitely less than 2.6 gallons in the tank when the fuel low light illuminated which could have caused the vehicle to quit in the middle of the interstate and which could also be damaging the fuel system. The computers, programming, and/or sensors are malfunctioning. The malfunctioning fuel system on the 2019 Mazda CX-5 could potentially lead to an accident.

P225/55R19 99V: On November 2, 2021, I was slowing down at a stop light. I was about 5 minutes away when my tire separated. I heard my car make a big sound and drop to the ground on the front passenger side. I lost control and hit the side of the curb, but I was able to pull my car over to a side road safely. It took over 3 hours for the tow truck driver to come, but when he did, he said he hasn’t seen one like this in a while, but it is a defective tire. The middle of the tire was a clean separation from the sides. If it was a tire blow-out the sides of the tire would be uneven, but this was as if the glue that held it together was loose, and the middle just fell out. The tow person tried to take the spare tire and he found that it was incorrect. My car a had 25,000 miles and I bought it new from the dealership and they made the mistake of giving me the wrong tire. Mazda corporation later had to replace it. Mazda dealership told me to contact customer service to discuss the tire. I emailed customer service several times and it took nearly 2 months for them to answer. I called several times, and I would wait on hold and they would hang up. When I finally got someone on the phone, she told me that Mazda warranty does not cover the tires. That is completely in the hands of the tire manufacturer. I contacted Toyo Tires and waiting a month for a response, I was contacted by a customer service. He mentioned that photos and videos were not enough, but that I had to send the tire back. I mentioned that Mazda did not tell me to keep the tire and when they replaced it, they disposed of it. I received a letter stating that there is nothing they can do. My car is a 2019 CX-5 and in the same year the CX9 was recalled for tire separation issues from the same company. I am extremely frustrated how Mazda and Toyo has handled this entire issue.

In July 2019 (approximately 2 months after delivery) my 2019 Mazda CX-5 began to drive roughly at slow speeds- specifically speeds 15 MPH or below. The vehicle would not coast (even downhill) and would seem to slip out of gear (this vehicle has an automatic transmission). More specifically, the vehicle would buck and lurch on it's own without engaging the accelerator or brake. This was happening going uphill, downhill and on flat grade. I brought the vehicle to the dealer and at their request took an employee for a drive so they could feel it. The employee did feel it, told the service manager, who then told me that, "they are supposed to drive like that." He said he drove around another vehicle on the lot that is the same Model and year, and that it performed the same. Please note that this is not the same person who was in the car to experience how my car was driving. I personally know two other people who have the same exact year and Model CX-5. I shared my experience with both owners- they both told me that their cars do not perform in that way. Additionally, I drove one of those vehicle and that one did not perform in the same way that mine does. I am concerned that this issue is being brushed off. There is no way that Mazda would purposely design a car so that it jerks, lurches, and bucks at slow speeds. I have read reviews on online message boards where others do complain of similar experiences, which is even more concerning. This poses a safety issue for the driver, passengers, and others on the road who May be driving nearby. I have an appointment and will be taking the car back this coming Monday to try and further address this issue, but felt it necessary to file here in the case that further action needs to be taken at a larger scale since it appears as if others, though not all, 2019 Mazda CX-5 owners are experiencing the same. *Tr

When accelerating, the transmission feels jerky/stutters. The check engine light and traction control light are illuminated and on the instrument cluster the messages: "Forward Smart City Brake Support Malfunction", "Smart Brake System Malfunction" and "Front Radar Sensor System Malfunction" appear. The vehicle acts like it doesn't know which gear it should be in, it'll buck pretty hard and then it refuses to accelerate...it feels like it's in a "limp mode". A previous driver of the vehicle complained and said that it actually stalled in traffic on the highway and was of course difficult to steer due to loss of power. I took it to a dealership and they came up with a laundry list of things to fix...most of which wouldn't have any bearing on this issue. I did have the serpentine belt replaced and the belt tensioner replaced due to wear on the belt and loose tension. On 7/16/25, I scanned the vehicle with a code reader, the codes P0301 and P0506 appeared. P0301 is a generic "Cylinder 1 Misfire Detected" message and P0506 is a generic "IAC system RPM Lower Than Expected. The vehicle was taken to a shop where the spark plugs and the cylinder 1 coil was replaces and the IAC cleaned. On 7/24/25 the same vehicle behaviors were observed and the same warning lights and messages were activated. I scanned the vehicle and got "p0300 Random/Multiple Cylinder Misfire Detected and P0304 Cylinder 4 Misfire detected. There was a recall on this particular vehicle make, model and year and my vehicle was out of the VIN# range. I firmly believe that the recall needs to be expanded to include a larger number of vehicles...you can google about this vehicle and see many others with similar issues. Usually, the cure is a PCM reflashing/software update that seems to take care of the issue. Please expand the recall before someone dies in an accident because of this problem.

I purchased a used 2019 Mazda CX-5 in 2024, with 25,000 miles on it. In June of 2026 I started to have an oil leak. Took it to a mechanic's shop who diagnosed it as a valve cover gasket, ran the car for another 2 months, oil leak did not stop, got worse, to the point where my oil light came on where the oil was low enough, then I took it to another mechanic, they diagnosed it as some sort of pressure sensor that has to do with the oil, they replaced that, then that still wasn't the case, it was leaking, and they diagnosed it as a cracked cylinder head. This has been an issue with Mazdas in the 2018 to 2022 range for the CX-5s, and Mazda knowingly has put in faulty parts and is not willing to extend the warranty on this because it's not a turbo, this is a clever work around to avoid paying for something that should not be going out at this point. For this car being under 60,000 miles, been taking very good care of it, always had the oil changed, I feel that this is not fair for the customer to have to replace something on an engine that shouldn't be addressed for a very long time, if at all. I contacted Mazda corporate, they refused to do anything about it, I also contacted the Mazda dealership in my area, they contacted Mazda corporate and are not willing to cover this as well, my parents had a Mazda back in 2008 that had a similar problem. The only way this was resolved was going through Mazda corporate and writing a stern letter to their management team. At this point I've basically lost the trust of this manufacturer. I spent 25,000 dollars on this car, and now I'm going to have to spend 7 to 8 thousand dollars to get this part replaced, and that this point in the car’s life, that is outrageous. I will not be purchasing from Mazda ever again, there is plenty of documentation on the internet about this problem, and that Mazda refuses to do anything about it.

My 2019 Mazda CX-5 with the 2.5L naturally aspirated SkyActiv-G engine with cylinder deactivation has developed a significant engine oil leak at the front of the engine, accompanied by a strong burning oil odor detectable both outside and inside the cabin. Mileage is approximately 50,000, averaging about 7,000 miles per year with all maintenance performed on schedule. The burning odor indicates engine oil is contacting hot exhaust components, creating a fire hazard. I have stopped driving the vehicle. I have taken the vehicle to two authorized Mazda dealers for this identical issue. One was unable to locate the source of the leak. The other quoted approximately $10,000 without providing a written diagnosis identifying the failed component. The vehicle is scheduled for a third dealer diagnosis on August 6, 2026. More than two weeks of dealer possession across two visits produced no identified cause. Mazda has acknowledged cylinder head cracking in this engine family. CSP11 extends powertrain warranty coverage to 10 years/120,000 miles for cylinder head repairs on the 2.5T turbo engine, and TSB 01-002/23 addresses cylinder head leaks. Mazda also revised the cylinder head casting for the 2021 model year. However, owners of naturally aspirated 2.5L vehicles with the same casting failure have been denied coverage on the grounds that the leak involves oil rather than coolant, or that their VIN falls outside the covered range. I request that NHTSA investigate cylinder head cracking in naturally aspirated 2.5L SkyActiv-G engines in 2018–2020 Mazda CX-5 vehicles. Numerous complaints describe the same pattern: oil leaking onto the exhaust manifold, burning odor and smoke, fumes entering the cabin, and failures at low mileage. This presents a risk of engine compartment fire and of sudden stalling from loss of oil pressure. The affected population appears substantially larger than the vehicles currently covered.

At about noon on 12/19/21 I was approaching the Tappan Zee (Mario Cuomo) Bridge in New York State going west. My car briefly stopped accelerating when I put my foot on the gas pedal but then continued on as normal. No warning lights or other signs of trouble appeared, and I continued onto the bridge and was in the center lane. There was moderate traffic on the bridge. Suddenly, my car started shaking and slowing as if the brakes were being pumped (although I did not put my foot on the brake), and the messages "Front Radar Sensor System Malfunction" "Forward Smart City Brake Malfunction" and "Smart Brake System Malfunction" all flashed on the dashboard screen. My husband turned on the emergency flashers and took a photo of the screen. The car continued slowing down and shaking no matter how hard I pressed the gas pedal. This created an incredibly dangerous situation; I had to get over to the right lane as we continued losing speed, and find somewhere safe to pull over once we got off the bridge. A car or truck going at a normal speed could have easily hit us and caused a catastrophic crash on the bridge. If I could not get out of the center lane quickly, at the rate the car was slowing down, it would have come to a complete stop in the middle of the roadway. I was able to merge right, get across the bridge and get to an exit, all as the car continued lurching and slowing down. At the bottom of the exit, there was a red light; I stopped and turned the car off and back on again. When I tried to accelerate out of the stop, smoke began pouring off the wheels. The car moved across the intersection at a few miles per hour and I was able to pull over safely on the right shoulder on the other side of the intersection. I had only bought the car the previous day, less than 16 hours before the incident. I called Mazda Roadside Assistance and the dealership; the dealership told me to have the car towed to their service department, so I did.

I own a 2019 Mazda CX-5 with approximately 36,000 miles. The vehicle developed a strong burning oil smell while driving, particularly through the HVAC/vent system. I initially reported the odor to a Mazda dealership, but no issue was identified. Approximately two months later, the smell returned and worsened. The vehicle was later diagnosed by a Mazda dealership with an oil leak originating from the cylinder head near the exhaust manifold. According to the repair documentation, oil was accumulating on the exhaust due to seepage from the cylinder head. The repair required full cylinder head replacement. This created significant safety concerns because leaking oil was contacting hot engine/exhaust components while the vehicle was being operated. Burning fumes entered the passenger cabin through the vents while driving. I was concerned about the risk of fire, smoke inhalation, sudden oil loss, and possible engine failure while on the road. There were no warning lights prior to the failure. The primary symptom was the persistent burning smell. The dealership replaced the cylinder head. The original repair estimate was approximately $6,000. Mazda later provided partial goodwill assistance, but I was still required to pay approximately $2,500 out of pocket. After researching this issue further, I found numerous similar NHTSA complaints involving 2019 Mazda CX-5 vehicles experiencing cylinder head leaks/cracking near the exhaust manifold, burning smells, smoke or fumes entering the cabin, and major engine repairs at relatively low mileage. Mazda has acknowledged similar cylinder head concerns in CSP11 and TSB 01-002/23 for certain VIN ranges but denied coverage for my vehicle because the leak involved oil rather than coolant and because my VIN was outside the covered range. I am requesting that NHTSA investigate whether this represents a broader cylinder head defect affecting additional 2019 Mazda CX-5 vehicles outside the currently covered VIN range.

1. January 2025 Diagnosis (Inside Powertrain Warranty): I presented the vehicle (2019 Mazda CX5, 36K miles) with severe transmission jerking and shift lurching at a local Mazda dealership. Technicians diagnosed teh issue as described in TSB 05-004/23 and applied a software flash to the PCM/TCM stated in TSB 05-004/23. Mazda’s oicial text states the root cause of this symptom is torque fluctuation and torsional resonance within the torque converter. 2. Current Symptom (Defect Manifestation): The vehicle now exhibits the distinct upshift chirp detailed in TSB 05-005/23 (NHTSA ID MC-10246127-0001). Mazda’s documentation states the root cause of this chirp is excessive wear of the lock-up clutch inside the torque converter, which sheds iron powder directly into the automatic transmission fluid (ATF). The torque converter is a single, closed mechanical component. In January 2025, while the vehicle was fully covered under the 5-Year/60,000-Mile Powertrain Warranty, the torque converter's internal clutch was already undergoing accelerated physical degradation. Instead of proper mechanical diagnostics, the service department applied an electronic software patch. This patch merely altered the lock-up engagement timing to mask the torsional resonance rather than fixing the failing hardware. Applying a temporary software patch that delays a catastrophic component failure past a calendar date does not absolve Mazda dealership or Mazda Corporate of liability for a pre-existing, documented torque converter manufacturing defect which affect the entire power train of the vehicle. There are numerous complaints about this and subsequent failing transmission and expensive repairs reported so many online forums (reddit, facebook) again indicating this is a wide spread issue affecting consumer safety eventually leading to expensive out of pocket transmission repair. Mazda corporate need to be liable for this serious manufacturing defect on their transmission system.

I own a 2019 Mazda CX-5 AWD equipped with the 2.5L naturally aspirated SKYACTIV-G engine with cylinder deactivation. At approximately 70,491 miles, the vehicle began leaking and burning engine oil, accompanied by a strong burning-oil odor and visible white smoke from the engine bay. This began on or around 7/15/2026 I took the vehicle to an authorized Mazda dealer, which confirmed that the cylinder head is cracked and leaking engine oil. I was quoted approximately $10,000 to repair. The repair is not covered because the vehicle is just outside the factory warranty. I received regular Mazda dealership maintenance through 52,000 miles, then regular 3rd party shops after. The oil is leaking onto/near the exhaust manifold. Oil contacting the hot exhaust creates a serious fire hazard, which I can detect from the burning-oil odor and smoke. Separately, ongoing oil loss risks sudden engine failure or stalling while driving, which could cause a loss of motive power and a crash, especially at highway speed or in traffic. This appears to be a widespread manufacturing defect. Many owners of 2018–2021 Mazda CX-5, and related Mazda3 and Mazda6 vehicles equipped with the 2.5L naturally aspirated engine with cylinder deactivation, have reported the identical failure — cylinder head cracking near the exhaust manifold causing an oil leak — frequently at low mileage. Mazda issued an internal service alert (SA-058/20) addressing cylinder head cracking on these engines, which shows the manufacturer is aware of the defect. Despite this, affected non-turbo owners are being denied repair assistance and are paying thousands of dollars out of pocket to fix a defect that presents a fire and crash risk. No crash, fire, or injury has occurred. I am reporting this because the defect is safety-related, appears to affect a large number of identically built vehicles, and warrants investigation and a potential recall to protect owners — especially those outside the warranty period.

Car was purchased in June 2019. Car started smelling like burning oil and started finding oil pooling under the car around November 2024. At time the incident was discovered, car only had 38k miles. There was no warning lights or indication there was an issue other than the smell and small pool of oil under car. The Mazda service manager immediately knew what the issue was and told me they were going to confirm with a full inspection and diagnosis. I was told that I have a cracked cylinder head and I will need to have it replaced. Warranty ended few months prior so they will not cover. I was told it would cost $4589.76. The Mazda service department told me that this is a common issue and to hold off on repair and contact Mazda corporate since warranty just ended. They topped off my oil and told me to keep an eye on the oil level and to wait to hear back from Mazda corporate.I submitted a case with Mazda and the customer care specialist told me that they cannot guarantee they will cover this. Within a week, the temperatures got colder and issue got worse. Low oil light came on, topped off with oil. Lost 4 quarts in one day. Called Mazda service and they told me to top off oil and come drop car off immediately. Upon researching this issue, the cracking of cylinder heads in Mazda CX-5 vehicles, particularly those with the 2.5-liter (NA) engine were widespread and discussed in online forum. The contributing factors of the issue point to a design flaw of the cylinder head due to the cylinder deactivation technology and a manufacturing defect due to the cylinder head casting process based on reports and discussions within the automotive community. A TSB (SA-013/22) has been released for the affected cylinder head with a modified replacement. This seems to be a significant and widespread issue that can cause entire engine to fail and require full replacement. Oil leaking on to the hot exhaust near other engine parts could ignite and put myself or others at risk.

I purchased a 2019 Mazda CX-5 (As is) on July 20, 2015. On September 11, 2025, as I was traveling on a three lane highway. I attempted to pass another vehicle. As I was attempting to go around the vehicle, my Mazda suddenly began braking and quickly losing acceleration. The speed limit on the highway was 70 mph. I estimated my speed at the time was between 70 and 75 mph as I attempted to pass. Pressing on the accelerator pedal did nothing. I had to try and very carefully steer the car to the right hand side of the road while trying to avoid oncoming traffic approaching from behind. When I finally got the car off the road, this is when I noticed that the car had stalled. The car started right back up and I continued to my appointment. The "radar cruise control" was activated at the time of the incident. On September 15, 2025, I contacted the dealer where the car was purchased and explained what happened. I was asked to bring the car in that same day. The car was supposedly looked over and connected to the Service Dept.'s computer to see if any error sign appeared. Nothing showed up. I service technician was then asked to ride with me to see if the car would replicated the same stalling as it has previously done. We could not get the car to stall as it had previously done. Before leaving, a salesman asked me if I wanted him to explain the "radar cruise control" to me some more. I agreed. The salesman then proceeded to tell me that "the car did not stall, it was simply braking from the activation of the radar cruise control". Being an experienced driver, I told the salesman that the car had stalled as evidenced by the fact that I had to restart it. The situation was not resolved to my satisfaction, but no other offers were made by the dealer. I requested additional diagnostic work to be done, but the dealer refused to cooperate. I did take the car to another Mazda dealer, but could get no offer but to connect the car to their computer.

1) It happened last week on 8/30, when I drove back home after work at night. After I parked my vehicle at the driveway and I had noticed there's smoke going into the cabin through the vent. The smell was very bad, it smells like burning rubber/plastic type. Then I went underneath the car and checked, the oil dripping out from the plastic panels where the oil pan is. Next morning, I jacked the car up and have a deeper inspection. I have notice the oil actually leaking from the Timing belt/chain cover area. I immediately called local dealership @ Putnam Mazda and drove it in for service on 8/31. When I arrived to the service department, my whole front end was full of smoke coming out from the hood. After a hour of inspection, service advisor told me that my car is having a blown cylinder #3 and oil leaks from cracked cylinder head. They will have to order a new cylinder head from Japan for my replacement, which will take more than 2 weeks or even longer due to part shortage. This is ridiculous!!! My car only have 21,500 miles on it, and it's a 2019 model year. The advisor told me they had quite a few were having the same issue. I guess he doesn't want to give me the exact numbers. But this is a safety concerns for other Mazda customers as well. I guess it has to do with the cylinder deactivation they put into the engine which cause this problem. The recalls that they had last year was not a fix or cure. 2) This is a safety concern and putting my life on risk, the oil leaks might cause fire or create accident on the road while operating. The smoke that I suck into my system may cause permanent damage to my lung and my health concern. 3) Problem had been confirmed with dealership. Mazda should declare a recall. You can't just wait for someone have an accident or cause their life to correct the issue. 4) The vehicle is at the servicer dept. and been inspected. 5) This is critical, I don't have any engine light or any indication. Even my scanner detected no code.

As I was driving home one day in February 2024, my car felt like a strong gust of wind was getting up underneath the hood of my car, causing it to pull left and right slightly. When checking the weather, wind gusts were at 5 MPH and you could barely see trees/leaf movement. I pulled off the side of the road, checked underneath the car to see if anything was dragging/missing and all was fine. As I started driving again, I then noticed my RPM's vs MPH was very strange. When accelerating, the car randomly increased up to 4,500 RPM when trying to go 45 MPH, then shifted down to 2,000 RPM's once I reached 45 MPH. But, no matter if I left my foot on the gas pedal, lifted my foot off of the gas pedal or hit the breaks, the car would not move off of 2,000 RPM's until I pressed my foot on the break all the way down to the floorboard. No lights came on at all. I took it to the dealership that I purchased it from, expressing the scary feeling of the driving the car and showing video proof of what the car was doing in RPM's vs MPH. After further conclusion, they determined that a "sensor" had gone bad. The thought that a plastic, electronic sensor going back caused my car to feel that way and put my life at risk while driving is a scary thought. Fast-forward to April of 2024, similar symptoms have come back again. Wind feeling like it's getting under my hood, causing the car to pull left and right, RPM's not matching up and now a hot engine with no warning light coming on, is questioning if it's this particular sensor again. Not to mention, I had it inspected by the dealership two weeks ago and had an oil change done to it and the dealership said "everything looks great". You should have zero thought or worry when operating your personal vehicle, but in the past three months, I have taken my car to the dealership and or a mechanic 7 times with thoughts/worries about my car. This car has now turned into a "lemon" as one would call it and I'm terrified to even start the car.

My wife's vehicle has a "Infotainment screen" (dashboard touch screen). There is a class action suit (CSP13d dealer letter) for issues regarding the screen performing tasks (Ghost screening touch) on its own. In lieu of a Mazda vehicle mass recall, they agreed to "FIX" the issue with a software update and replace the CMU Module of the vehicle to rectify this issue. I am here to report / advise you that MANY Mazda owners are NOT happy and have taken it upon themselves to disconnect these screens and do other "work around self repairs (removing/ disabling the unit) in order to fix the issues that occur. I have directly contacted Mazda in regards to my issues and they stat they can ONLY do what was advised on the court ordered settlement and NOTHING more to fix the issue. I want to advise you first hand, their FIX for this issue does NOT fix the problems. In fact, it is making it much worse! NOW my wife's vehicle is operating this screen by itself, WHILE driving, creating a MAJOR distraction. This "Ghost Touching" is actually going into the braking system settings and trying to change/ alter them AS she is driving! A MAJOR SAFETY ISSUE. She has had to, on several occasions, pull over /off the road, shut down the vehicle and try to "reset" what has occurred and check her system for ANY altered setting..if possible. As a retired Police Officer, I can tell you first had that if we ever encountered such thing/ safety issues reported by drivers, we would NOT allow them to travel any further with the vehicle and have it safely towed to a dealer or mechanic for repair. For their safety as well as the rest of the publics safety!! Mazda has refused to fully fix this issue and you can even see on numerous social media posts of MANY others reporting similar issues, disabling their devices on their own and doing other work arounds to mute or disable their devices totally. I Implore you to do a FULL RECALL of ALL affected vehicles to fix the problem ASAP!

1. What component failed, and is it available for inspection? Component: The Engine Cylinder Head. The Failure: The cylinder head failed due to a structural crack caused by overtightened bolts (manufacturing defect), resulting in an engine oil leak. Confirmation: The defect is confirmed and resolved. Wayne Mazda (NJ) acknowledged the failure and replaced the cylinder head under the CPO Warranty last month. The issue has not returned since the replacement, proving this was indeed a hardware defect. 2. How was your safety put at risk? Fire Hazard: Before the repair, for a duration of one year, the vehicle leaked engine oil onto the hot exhaust manifold, creating a persistent fire risk. Toxic Exposure: My family and I were forced to inhale burning oil fumes inside the cabin for months due to the dealer's delayed diagnosis. This posed a significant health hazard. 3. Has the problem been reproduced or confirmed? Yes. The defect was initially identified by independent service centers (when the dealer failed to find it) and was ultimately verified and repaired by Wayne Mazda. The fact that the dealer performed the repair under warranty is an admission of the manufacturing defect. 4. Financial Damages & Request for Reimbursement: Since Mazda has admitted liability by fixing the vehicle, I request reimbursement for the losses incurred due to the delay in diagnosis: $2,000+ in Independent Repairs: Because Wayne Mazda initially failed to diagnose this warrantable defect, I was forced to pay independent shops to diagnose and attempt to fix the oil leak to keep the vehicle safe. These costs were a direct result of the dealer's inability to identify the manufacturing defect. $159.29 in Uber Fees: Mazda failed to provide a loaner vehicle during the major powertrain repair, forcing me to pay for my own transportation. Conclusion: I am filing this report to: Document this safety defect (Overtightened Cylinder Head Bolt / Oil Leak) for NHTSA records, as it poses a fire

What component or system failed: The cylinder head failed due to cracking around the exhaust manifold, resulting in exhaust and coolant leakage. My independent mechanic and the Mazda dealer both confirmed this was the source of the burning smell and engine risk. The failed parts are currently in the possession of the Mazda dealership and available for inspection upon request. Safety risk: The failure created a strong burning rubber smell inside and outside the vehicle while driving. My mechanic advised this type of leak could lead to engine overheating, sudden power loss, or potential fire risk if not caught early. I frequently transport children in the vehicle, and the unexpected engine damage posed a significant safety concern. Has the problem been reproduced or confirmed: Yes. The issue was first diagnosed by an independent, certified mechanic and then confirmed by the Mazda dealership, who determined the cylinder head had to be replaced due to premature cracking and leakage. Has the vehicle/component been inspected: Yes. The vehicle has been fully inspected by an independent mechanic and the Mazda dealership service department. The dealership stated the failed cylinder head will be sent to Mazda for engineering review. Were there any warning lamps or symptoms before failure: There were no warning lights or error messages prior to the failure - which is alarming. The only initial symptom was a strong burning rubber smell that began shortly before the diagnosis. No overheating warnings appeared on the dash before the problem was confirmed. Additional context: The vehicle has 40,000 miles, has been fully maintained according to schedule, and is garage-kept. The Mazda service department acknowledged this failure is unusual and premature. Mazda has issued prior Technical Service Bulletins and warranty extensions for similar cylinder head/manifold cracking issues on the 2.5L turbo engine, but no program exists for the non-turbo engine, despite identical symptoms.

This is a follow-up to my complaint 11754947, filed 8/5/2026 on the same vehicle. The defect has now been confirmed in writing by an authorized Mazda dealer. On 8/6/2026, San Francisco Mazda (repair order 1085786) diagnosed the cylinder head as the source of the engine oil leak on my 2019 CX-5 with the 2.5L naturally aspirated SkyActiv-G engine with cylinder deactivation, engine code PYUD. The dealer inspection report states: "CYLINDER HEAD LEAKING — FOUND THE CYLINDER TO BE THE SOURCE OF THE OIL LEAK." The repair estimate is $10,655.34, including a replacement cylinder head assembly, cylinder head bolts, and four gasket kits. Mileage at diagnosis was 51,483, approximately 7,000 miles per year, dealer-maintained since new. The technician inspection video shows engine oil actively dripping onto components below, and extensive burnt oil residue baked onto the metal surfaces above the engine. That residue is physical confirmation that leaking oil has been contacting hot surfaces repeatedly over an extended period. Still images from the dealer's own inspection video are attached. A burning oil odor is detectable both outside the vehicle and inside the cabin. Timeline. In April 2026 I found oil accumulating beneath the vehicle. On 5/18/2026 the same dealer (repair order 1079428) noted oil leaking from the cylinder head gasket area and from a plug near the firewall. The dealership replaced the valve cover, charged $1,218.26, and instructed me to drive 1,000 miles and return for reinspection. I drove 1,077 miles as instructed. During that period the leak persisted and progressed, developing the burning odor. On 8/6/2026 the same dealership confirmed the cylinder head as the source and confirmed the plug is not the source. I want to emphasize the safety implication of that sequence. An authorized Mazda dealer misidentified the source of an oil leak and instructed me to continue driving the vehicle for 1,000 miles. The oil was in fact reaching hot exhaust components duri

I am writing to express serious concerns regarding the recent service that occurred on November 14th, 2023. Due to the service's failure and negligence, Luther Brookdale Mazda has jeopardized the safety and well-being of my family members. On [XXX], my 2019 CX-5 was towed from Monticello, Minnesota, to the dealership in Brooklyn Center around 9 pm. While returning from [XXX] dinner in St. Cloud on [XXX] , a sudden warning appeared on the dashboard: "Engine Coolant Temperature High. Stop the vehicle immediately in a safe place." Upon receiving this notification, we pulled over to the shoulder and observed smoke emanating from the engine bay. We promptly turned off the vehicle. Concerned for our safety, we contacted our family to pick us up and had the vehicle towed by AAA. As we awaited the tow truck's arrival, we noticed coolant had sprayed all over the engine under the hood, and the engine cover was missing. Furthermore, the coolant reservoir was below the minimum threshold. This particular issue is the reason I brought the vehicle in for service the week prior, regarding insufficient coolant temperature. It was evident from the state of the engine bay that the dealership failed to follow proper protocol. This lack of oversight likely resulted in damage to the engine and other essential vehicle components, leading to the total loss of the car. I am deeply disappointed by the lack of care and attention to detail in the service provided. This negligence also compromised my family's safety. Moreover, what was meant to be a festive holiday was marred due to the disregard for my property. I have been a loyal customer at Luther Mazda Brooklyn Park for several years, and I am shocked by the incident that has transpired. We have approached the dealer with the issue and they are continue to articulate that there is no engine damage, but with the ongoing class action lawsuit, I am extremely skeptical of their claims. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

I hope this message finds you well. My name is [XXX] , and I am the owner of a 2019 Mazda CX-5 purchased as part of the Certified Pre-Owned (CPO) program. I am writing to formally address two concerning issues related to my vehicle’s warranty coverage and its safety. 1. Warranty Coverage for Drive Belt Tensioner: During a recent visit to your dealership, I was informed that the drive belt tensioner on my vehicle is not covered under the warranty. This contradicts the coverage listed on your official Mazda CPO Warranty, which specifies that the Limited Powertrain Warranty includes the engine, timing chain, tensioner, and associated components. The drive belt tensioner is clearly referenced in this section, yet I was told it falls under wear and tear and is not covered. I kindly request a detailed explanation regarding this discrepancy. I believe the information I was given does not align with the warranty’s stated coverage, and I am concerned that the dealership is not honoring the terms of the warranty as outlined on your website. 2. Ongoing Noise Issue: Additionally, my vehicle has been making an unusual noise, which I reported during my visits to two separate Mazda dealerships. Unfortunately, despite multiple attempts to diagnose the issue, neither dealership has been able to identify the source of the noise. This situation has left me feeling unsafe while operating the vehicle, as I am unsure of its origin or potential impact on my vehicle’s performance or safety. I would appreciate it if you could escalate this matter and offer assistance in determining the cause of the noise, as well as ensure that all components of the vehicle are functioning properly. The lack of resolution is not only inconvenient but also concerning from a safety perspective. Request for Resolution: I trust that Mazda values its customers and will make every effort to resolve these issues in a timely manner. I respectfully request that the drive belt tensioner be covered und INFORMATION RED