2018 Acura MDX transmission problems

Filed Jul 10, 2026 · Electrical, Engine · HI

Transmission failed and light appeared. Speed reduced from 30 to 15. Acura stated they had to reset computer system and claimed when they started the car no lights shown and was able to reverse car. I was unable to reverse car, struggled and tugged feeling in the car. This is the 2nd time and they always repeat same solution no lights appeared and to reset system.

Filed Jul 6, 2026 · Transmission · CA

Driving my Acura MDX on the highway, I hear a noticeable engine whine as I accelerate, and it rises in pitch when I take my foot off the accelerator.

Filed Nov 18, 2025 · Engine, Transmission · TX

I want to say that the engine or transmission is faulty. Sometimes while at a complete stop, the car will not advance and tries to stall or lose power. It takes about 2 or 3 seconds to finally go after I push the accelerator pedal almost 3/4 throttle. No it has not been reproduced at the dealer. I took it May of 2024 for the engine recall repair. They said that the repairs should fix the problem but it has maybe even worsened. No warning lamps appear when the problems happen.

Filed Aug 20, 2025 · Driver assistance, Fuel system · 40,000 miles · TX

The contact owns a 2018 Acura MDX. The contact stated that while driving 45 MPH, the vehicle lost motive power and stalled, with several unknown warning lights and the traction control warning light illuminated. The contact was unable to restart the vehicle, and the vehicle was towed to the dealer, who diagnosed a failure with the oil pressure switch. The oil pressure switch was replaced; however, the failure persisted. The contact stated that while driving approximately 70 - 75 MPH, the vehicle unintentionally decelerated to 40 - 45 MPH. The accelerator pedal was pumped until the vehicle accelerated with a crunching sound coming from the vehicle. The contact stated that the remote start failed to operate as designed occasionally. The vehicle was taken to a certified mechanic and was diagnosed with transmission failure; however, the vehicle was not repaired. The vehicle was taken to the dealer approximately 7 to 8 times due to the failure. The contact stated that the fuel pump was replaced; however, the failure persisted, and the transmission had experienced total failure. The contact was informed that the transmission needed to be replaced. The dealer informed the contact that the VIN was not included in the federal safety agency Campaign Number: 23V858000 (Fuel System, Gasoline), and the vehicle had exceeded the mileage for the transmission repair under warranty. The vehicle was not repaired. The manufacturer was informed of the failure and opened a case. The failure mileage was approximately 40,000.

Filed Jul 11, 2025 · Transmission · FL

My vehicle started a couple of months ago making a noise like the transmission was having trouble shifting smoothly. I do not drive this vehicle that often so I thought it was maybe my ears. When researching I found out there to TSB's on Acura MDX's B20-015 & B19-004 to from 2016 to 2019. My wife does not feel safe driving this vehicle. Can you help ASAP. Thank you so much.

Filed Mar 24, 2025 · Transmission · WI

Vehicle stalls when accelerating from A stop. Has done this since first purchased. Acura charged me for transmission software but did not resolve issue. Vehicle hesitates and stalls when accelerating from a stop. My wife refuses to ever drive vehicle as we have had many close calls with accidents.

Filed Feb 14, 2025 · Transmission · 92,365 miles · LA

The contact owns a 2018 Acura MDX. While the contact's wife was driving and stopped at a stop light, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the transmission hesitated, and the vehicle jerked forward. The contact stated that the failure was persistent. In addition, the contact stated that the transmission was shifting abnormally hard. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 92,365.

Filed Jan 8, 2025 · Engine, Fuel system · MN

From a stop, the vehicle will lurch forward after 1 second of acceleration without a change in the amount of pressure on the gas pedal, as if there is a delayed input to the throttle position. This only happens from a complete stop, such as at red lights, stop signs, or in heavy stop and go traffic. On multiple occasions I have almost rear ended the vehicle in front of me as a result of this. There are no warning lamps or error messages displayed in the gauge cluster. I have not been able to have this inspected by any of the Acura dealers in a 25 mile radius, because when I called to make an appointment for the connecting rod bearing recall, the earliest opening was March of 2026.

Filed Dec 4, 2024 · Engine, Fuel system · GA

While accelerating, the vehicle to decelerated rapidly, the gas pedal became unresponsive when pushed down. Numerous warning lights started Additionally, the vehicle shifted into neutral while the vehicle was being driven and would not shift out even after stopped. I was on a very busy 6 lane highway going 80 mph in thanksgiving traffic, my wife, 1 year old and 3 year old were in the vehicle. This appears to be a known issue from Honda, please see [XXX], et al. v. American Honda Motor Company Inc., et al., Case No. [XXX], INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 12, 2024 · Transmission · TX

While driving car turned cel/epb/emission, car lost power while engine still running suddenly so I pulled to the side of the street. I put in park and turn engine off and on, it would not let me put in any gears . I hold down parking brakes and finally it let me engage the gears. The Acura technician found clutch positions controlled error which caused engine stall conditions, this DTC is typically caused by outdated TCM, PCM software. This situation is a safety issues, the manufacturer should fix for free, the engine stall may cause a major accident if i am on the highway