{"source":"NHTSA vehicle owner complaint","officialApiUrl":"https://api.nhtsa.gov/complaints/odinumber?odinumber=11753878","retrievedAt":"2026-11-05T02:36:23.737Z","count":1,"results":[{"odiNumber":11753878,"manufacturer":"Mazda Motor Corp.","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"07/30/2026","dateComplaintFiled":"07/30/2026","vin":"JM3KFBCM8K1","components":"ENGINE","summary":"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.","products":[{"type":"Vehicle","productYear":"2019","productMake":"MAZDA","productModel":"CX-5","manufacturer":"Mazda Motor Corp."}]}]}