2020 Acura MDX: hesitation when accelerating

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 Apr 9, 2025 · Electrical, Transmission · 48,193 miles · CA

The contact owns a 2020 Acura MDX. The contact stated that while driving in Comfort Mode at approximately 40 MPH and attempting to accelerate to change lanes, the vehicle stalled for several minutes before accelerating. There were no warning lights illuminated. The vehicle hesitated to start intermittently, and the failure was more frequent over time. The vehicle was taken to the dealer, who diagnosed that the battery had failed. The battery was replaced, and the vehicle was remedied under the federal safety agency Campaign Number: 25V031000 (Fuel System, Gasoline, Electrical System). The failure reoccurred. The vehicle was returned to the dealer, and the contact stated that the vehicle was shaking abnormally while accelerating; however, the dealer had not diagnosed the vehicle a second time. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 48,193.

Filed Jun 24, 2024 · Acceleration, Engine · TX

upon turning right, the car lost power, degraded acceleration as if someone is holding and pulling the car to move forward. The traffic behind me expected me to cathup with the speed on the road but due to loss of power and engine hesitation i got honked and was luck to avoid a crash from behind on a busy road. Acura dealership in Dallas dont have parts since a very long time. They have pleant of new cars to sell but not repair.

Filed Mar 28, 2024 · Engine, Fuel system · 56,500 miles · NY

The contact owns a 2020 Acura MDX. The contact stated that while driving, at various speeds, the vehicle hesitated and stalled. Additionally, while driving on several occasions, the vehicle hesitated. There were no warning lights illuminated. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The contact called another local dealer, Acura of Valley Stream Service, at 700 W Merrick Rd., Valley Stream, NY 11580, who informed the contact about diagnostic testing. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. . The failure mileage was approximately 56,500. The contact stated that the failure was related to the federal safety agency Campaign Numbers: [XXX] (Engine and Engine Cooling), and [XXX] (Fuel System, Gasoline). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 20, 2024 · Engine, Fuel system · 32,863 miles · FL

The contact owns a 2020 Acura MDX. The contact received notifications of the federal safety agency Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were not yet available. The contact stated that the vehicle hesitated to start. There was no warning light illuminated. Additionally, the contact stated while driving at an undisclosed speed, there was an abnormal knocking sound coming from underneath the rear of the vehicle. An unknown local dealer was contacted. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was not notified of the failures. The approximate failure mileage was 32,863. VIN tool confirms part not available.

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 18, 2021 · Steering · NV

Temporarily loss control of my vehicle when I was exiting the parkway and needed to steer around to avoid a stop car my car just took a big rock in motion from side to side. The steering is very unresponsive, vehicle hesitates when accelerating rapidly and when turning they is no stability. Also my breaking doesn't react the way it should it's very delayed. All of the things that the dynamic mode is supposed to enhance appears not to be functioning. I went to the dealer several times they said they couldn't find anything but yet the problem continues. They also said they reset and relearned some parts of the car in an attempt to rectify the issue I was experiencing. The problem still exists. Many times when I come to a stop on a hill the car roll backwards. I was given the same model on one of my visits to the dealership as a loaner. And it ran like a totally different car the way the car should run it was the same year same model. Everything was more responsive the steering the breaking the suspension even when I started the car the start up sound was much more aggressive. Please help!