2017 Acura MDX: sudden unintended acceleration

Filed Feb 8, 2026 · Acceleration, Transmission · WI

There were several instances where my vehicle either accelerated or decelerated while I was driving. I first noticed the issue about a week after I purchased the car in May 2022. I took it back to Acura of Brookfield, and they said they couldn’t replicate the issue. I also took my car to Acura of Brookfield in September 2023 for the same jerking issue. They charged me for an update, but the issue did not change. I continued noticing the problem over the years, but it happened more frequently in 2025. In May 2025, I was driving down a hill in Brookfield, Wisconsin, when my car jerked aggressively and then accelerated on its own. Throughout the rest of the year, it would either accelerate or decelerate while I was on the highway. On January 20, while I was on my way to the gym, my car jerked and decelerated while I was on the highway. I was able to pick up speed again and continue driving to the gym. When I came back out, my car started, but it would not shift out of park. I had the car towed to Acura of Brookfield, and they said something about the hydraulics inside the transmission being bad, and that they had to replace the entire transmission.

Filed Sep 15, 2020 · 12,000 miles · IN

Starting, seat pushed forward against steering column moving down radio blaring driver climate control went to low passengers to 80 degrees blower to high and car lunged forward. Dealer said previous complaints were discovered and addressed to be two fobs entering vehicle at same time and and vehicle confused they advised only one fob in car at any one time. Questionable answer not substantially proven? And we will always have two fobs. Vehicle was stationary in gear.

Filed Jan 25, 2019 · Fuel system · 5,000 miles · MN · crash

The 2017 acura mdx has an unintended sudden acceleration failure condition. This analysis provides evidence of this issue, and the subsequent communications with acura client relations which ended with a refusal to acknowledge the issue. The purpose of this document is to provide data and evidence in order to influence acura to initiate a root cause analysis; with the objective of implementing a solution for all affected vehicles.

Filed Sep 28, 2018 · Acceleration · MN

2017 acura mdx. Consumer writes in regards to unintended acceleration. *ld the consumer stated the manufacturer was made aware of the failure, but did not offer any assistance.

Filed Sep 7, 2018 · Acceleration, Brakes · 12,431 miles · CA · crash · 1 injury

On august 21, 2018 I pulled into a parking stall, and realized I was not aligned properly. I clicked on reverse so that I could realign within my designated space, and the car lunged forward jumping the curb and hitting the building approximately 4-5 feet in front of me. Both driver side airbags deployed. $13,000 worth of damage to my car. Within the first week of getting this car is 2017, I've had many issues such as failure to start and brake warning light coming on randomly while driving. Had to have the vehicle towed at least 3x to the dealer, for which they could not replicate the issues.

Filed Feb 12, 2018 · Acceleration, Engine · 6,000 miles · CA

On several occasions as I reduce speed, the car suddenly accelerates when I release the break to start accelerating again. The acceleration happen when you are going at slow speed. The first time I took it to the dealership it had happened in 4 occasions and I had atributed the incident to lack of experience in driving a new car. Because it happened in front of my daughters school ' and in theory I could have actually killed a child ' I promptly deliver it to the dealership. During the test drive with the technician, the car changed gears from the comfort mode to sport mode on its own. Because it was a safety issue, they informed me that an engineer from acura would come and inspect the unit. After a week with my car, they just did an update into the transmission software - and informed me they were unable to recreate the issue. Thirty three days later' while dropping my dad at his dialysis ' at a turn - the car went form 3 miles to 25 miles, and it was fortunate that it was 5:45 in the morning ' since I could certainly would have cause an accident considering I almost ran a light. I called the dealership and on february 1, dropped again the vehicle at the dealership. 11 days later I called back to follow up and was informed by the service manager that acura should have contacted me on friday february 9 to let me know that they would be sending an engineer to check the vehicle again. Our concern is that this is a safety issue documented on two previous complaints in this forum, that constitute a serious risk for my family and community. At 11:00 am on february 12 I have yet to hear from acura although they are aware of the issue.