2020 Acura MDX: sudden unintended acceleration

Filed Sep 14, 2026 · Acceleration, Airbags · 45,000 miles · NJ · crash

The contact owns a 2020 Acura MDX. The contact stated that while driving at various speeds, the vehicle hesitated while accelerating. The contact stated that later, while parking the vehicle, the vehicle unintended accelerated and drove over a curb and crashed into a tree. The vehicle crashed into the tree, and the front wheels continued spinning without the accelerator pedal being depressed, and the engine was turned off. During the crash, the front end was severely damaged, but the air bags failed to deploy. The vehicle was driven to the residence and examined by an independent mechanic, and it was determined that the PCM had malfunctioned and there was a computer miscommunication between the engine and the transmission. The vehicle was later towed to the local dealer. The failure mileage was 45,000.

Filed May 8, 2026 · Acceleration, Driver assistance · CA

I was pulling up to our house to park in the open garage as I typically do and was in the driveway with my foot lifted off the gas pedal to allow the car to coast forward slowly. The car hesitated for a moment before it lunged/accelerated on its own with such force I had to slam on my brakes to avoid the car hitting the wall of our house. I did not have cruise control on. Took the car to Acura dealership for a multi-point inspection and they found nothing out of order that would’ve caused that to occur.

Filed May 4, 2023 · Acceleration, Brakes · CA · crash

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..

Filed Apr 30, 2022 · Acceleration, Transmission · TX

Starting around 20,000 miles, my car started to majorly hesitate when I would step on the pedal trying to accelerate. Over time the problem became increasingly worse to the point where the car would slip into neutral causing a major hazard driving on the tollway when my car would decelerate when stepping on the gas pedal. This has caused me to have several very close near accidents. The dealership would keep saying that they could not replicate the problem. I have taken my car in on 8 separate occasions for this safety concern (4 different Honda/Acura dealerships trying to get help since the place I bought the car wouldn’t not help with a solution.) My car has also begun back rolling (15+ feet) when in drive. And yesterday, suddenly accelerated from 0 to 35 when waiting for our driveway gate to open. There are major issues with sudden acceleration when driving a speeds under 20mph and deceleration issue when stepping on the gas pedal trying to accelerate. I have opened a report with Honda over a year ago and keep getting the run around.

Filed Mar 2, 2021 · Fuel system, Transmission · 13,400 miles · FL

I have experienced sudden acceleration problem numerous times( 5 to six times. The latest one was march 1,2021. The vehicle would accelerate (RPM rapidly ) suddenly when driving at low speeds(around 10 to 15mph to a quick almost 30mph without pressing the gas pedal) that always require me to break immediately to avoid any accidents. I had the vehicle checked thoroughly by a company sent expert last year(sometime nov ,2020) and they can't replicate the problem. Acura relations can't help me anymore . It made me google unintended acceleration mdx. The problem is for real. Had I known this problem, I wouldn't have leased this vehicle last oct.31, 2019. Please help. Many thanks