Verified government source

NHTSA complaint #11520536

This page summarizes an official U.S. National Highway Traffic Safety Administration owner complaint. Use the verification links below to confirm the record directly with NHTSA.

Vehicle

2020 ACURA MDX

Manufacturer

Honda (American Honda Motor Co.)

Components

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,SERVICE BRAKES

Dates

Incident: 04/25/2023
Filed: 05/04/2023

Owner complaint summary

While braking into a parking spot, vehicle experienced sudden unintended acceleration. Brake did not engage, car rapidly surged forward over parking block, sidewalk and hitting building. Previously in day, car would not recognized key fob, would not unlock and would not start even though stepping on brake that would not depress. I had no control over vehicle,and this could have hit pedestrians on sidewalk or storefront. Thankfully no one hurt, and did not occur in traffic or on the road. The dealership was contacted immediately, and they declined to inspect vehicle, codes or EDR statign that's not what they do. I have asked dealership 3 times. Insurance contacted immediately, and they to will not investigate, saying up to Honda and dealership. Honda stating they don't do investigations, and Insurance should do that. Round and round we go. No one assisting. Auto Body referred by dealership unable to investigate and do not have equipment to do so and stating dealership and Honda tech needs to do this investigation. Several messages displayed the day of incident prior to incident and electrical issues seem to have started immediately after recall or warranty work to reprogram auto stop function. First instance of electrical issue was on 4/1, when car would not open, or unlock even with new battery in key fob. This continued over next 3 weeks sporadically. 4/24 car would not start, displaying "must press down brake" to start, but brake would not depress. Finally worked. Same thing 4/25 in morning. In evening car would not unlock for some time, finally opened, then would not start displaying "Key fob not detected". Finally started. Message remained displayed. 15 min ,after, when parking, car accelerated forward without warning. This is a short summary, and a detailed summary is available. Vehicle remains untouched at autonomy hoping to get investigation completed. Too scared to drive this vehicle now..

Crash reported
This is an owner complaint filed with NHTSA (ODI #11520536). It is not automatically an official recall, investigation outcome, or manufacturer admission unless the complaint text itself describes one.

Official record ID (ODI): 11520536. This page is the human-readable source link used across afterwarranty. The raw JSON link proxies NHTSA's public API for machine verification; prefer this page when reading the complaint.