2023 GMC Acadia transmission problems

Filed Oct 14, 2026 · Electrical, Transmission · MO

Vehicle Information: 2023 GMC Acadia VIN: [XXX] Description of Safety Defect: While operating the vehicle, a sudden and total loss of propulsion occurred without warning. The transmission completely disengaged from the drive gears while the vehicle was in motion. When depressing the gas pedal, the engine freely revved up to approximately 3,000 RPM, but no power or torque was transferred to the wheels, leaving the vehicle entirely stranded and unable to move. This severe mechanical failure matches the exact symptoms, hazards, and mechanical behavior detailed in the federal safety agency Campaign Number 23V172000 (General Motors Safety Recall N222389310) regarding a dimensionally incorrect transmission sun gear that causes driver-side half-shaft separation. My specific VIN is currently excluded from the active recall population, despite experiencing the identical manufacturing defect and catastrophic loss of motive power. This creates a severe highway safety hazard and a rolling/rollaway risk. I am requesting that the federal safety agency investigate an expansion of the recall population for the 2023 GMC Acadia to include this vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 28, 2026 · Acceleration, Transmission · IL

I find the location of the lower gear shifters + and - to be physically far away from a driver's normal reach, making a driving hazard. If you want to change gears as is typical in mountain driving in steep descents, the driver has to lean awkwardly away from all mirrors and standard driving position making it a potentially hazardous situation for the driver and occupants to be in. It has nothing to do with comfort, but rather normal functionality, keeping the driver and their attention unadjusted on the road, all surroundings with minimal, if any changes to their physical posture while in the drivers seat. The location of the gear shifters are in a totally unorthodox location, nearer to the passenger, rather than the driver.

Filed May 20, 2026 · Transmission · 65,000 miles · TX

The contact owns a 2023 GMC Acadia. The contact stated that while driving, the vehicle lost motive power in low gears while accelerating. There was a slight shudder. There were no warning lights illuminated. The contact stated that the vehicle was shuddering and shaking every 30 seconds. The vehicle was taken to the local dealer, where unknown repairs were conducted under the EVAP warranty. The vehicle was not diagnosed or repaired for the initial failure. The dealer test drove the vehicle but did not experience a failure. The failure recurred after leaving the dealer. The manufacturer was not notified. The failure mileage was approximately 65,000.

Filed Apr 2, 2026 · Engine, Transmission · MI

Vehicle would not run due to a failed fuel pump control module. With a non-running engine, the transmission could NOT be placed into Neutral to be able to movie vehicle out of the road. Needed tow truck to move vehicle. This condition placed many people at risk as the vehicle could not be moved out of the way until a tow truck arrived.

Filed Mar 31, 2026 · Fuel system, Transmission · 24,749 miles · FL

The contact owns a 2023 GMC Acadia. The contact stated that while driving on the highway at an undisclosed speed, the vehicle stalled, and the engine lost automotive power. The vehicle was able to restart. During a second failure, the vehicle lost automotive power and stalled in the middle of the highway, and the vehicle was unable to restart. An alert message was sent by OnStar reporting a transmission or engine failure and advised that the vehicle needed immediate service. The vehicle was towed to the dealer where it was diagnosed with a fuel pump module failure. The manufacturer was not notified of the failure. The failure mileage was 24,749

Filed Feb 28, 2026 · Transmission · SD

My 2023 GMC Acadia consistently makes a sound at lower speeds when it is changing gears. For example, accelerating or accelerating for stoplights. The sound is kind of a ka clunk. The technician can find nothing and does hear the sound when we go for a test ride. I am worried that the sound indicates a transmission problem. The VIN search does not show a recall for my vehicle.

Filed Nov 30, 2024 · Electrical, Engine · LA

On 11/26/24 my wife was running errands in her vehicle when the power shut off and killed the car. She was in the left lane of a busy state highway. She was able to coast off the road slightly before the vehicle came to a complete stop. The dashboard said to press brake and start button, but the car would not start. The vehicle was also stuck in drive and would not switch to park, neutral, or any other gears. Police came and had to push her vehicle with theirs into a nearby park lot so a tow truck could pick it up. It is currently at a GM dealership waiting to be looked at.

Filed Nov 13, 2024 · Transmission · PA

We purchased a 2023 GMC Acadia AT4 new in October 2023. There is currently a little over 19,000 miles on the AT4. As of today November 13, 2024 the SUV has been to Blaise Alexanders, for at 3 times with same issues. Between the speeds of 50-65 there is a shudder, which in August 2024, the Chevy garage changed the fluid However, You can now feel this at any speed through out a trip. The SUV was return to the shop for increasingly worse shudder between 50-65 and a new issue of "hunting" between 25-35. There are times that the SUV does not want to propel forward (like the AT4 cannot get out of its own way) Also, when making a sharp right turn followed by an immediate left turn, onto uneven surface, the AT4 acts as though it is confused as to what gear it should be. The garage was then notified that I know have whining sound. At one point the garage had the AT4 for a week, the general manage drove it, did not feel anything. I then returned, took him for drive and he felt it. Left the car for him to take one of the "transmission" repair individuals out on a drive with the scan tool hooked up. Results of that test drive---"the car did it once, slightly but it was not picked up on the scan tool." Troy, from the service desk informed us they called GM to have their traveling engineer come look at the AT4 in a few day. GM's representative stop at the garage, DID NOT look at the car or speak to us, but has Troy tell us to keep driving the car. We are now in November and unfortunately, I got a little behind on bugging them due to the loss of my brother, father and step -father. But then again they have made no attempt at resolving this issue. This is frustrating. We are asking for any assistance that you can provide. I find it hard to believe that we are the only individuals that are experiencing these issues. I love my car. Why did they change the fluid if nothing was wrong the first time?? It has progressively been getting worse and winter is coming......

Filed Oct 11, 2024 · Steering, Transmission · SC

I purchased my 2023 Arcadia FFWD SLT a few months ago used with 11,000 miles. During the past few months I have noticed when reaching a speed of 45-60 mph the vehicle vibrates. I took the vehicle to the dealership on 10-10-24 and they said they could not find anything but they did not do an intensive problem search. I am concerned the problem may be related to a transmission recall dated 6/23. I did a search but no recalls came up my VIN but the vehicle has a major vibration when going 45-60 mph.

Filed Aug 24, 2024 · Transmission · MI

Today is Aug. 24, 2024. On [XXX], as my wife and I were preparing to leave on a vacation trip, our leased 2023 GMC Acadia would not move out of Low Gears moving forward. I soon discovered that it also would not shift into Reverse. When I took the vehicle to the GMC dealership near my home in Grand Rapids, Michigan, the service advisor told me that the Check Engine light was on. The dealer has had the car since the date of this occurrence, on [XXX], giving me a smaller car as a loaner. My service advisor told me that he was able to get the car into Reverse. When I have called, he tells me they are trying to identify the problem. I see on the Internet that this model of vehicle has had multiple "transmission issues" and that there has been a Recall due to the transmission. I have not been alerted to a Recall. Yesterday, on Aug. 23, I received an Onstar Diagnostics Report saying there is a "diagnostics alert" requiring "immediate attention." I leased this vehicle in October 2023 from Todd Wenzel Buick GMC, where the vehicle now is located in the Service Department. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)