2023 GMC ACADIA Power Train Problems

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.

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...

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.

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....

While driving 55mph, I had to make a sudden stop due to a large animal in road now my engine lights is on and when I try to put it in to any gear it says the transmission is not in the correct position with a code PO700 (MIL) car will not go into any other gear unless I shut it off the car then start again.

The contact owns a 2023 GMC Acadia. The contact stated that after his wife had driven the vehicle approximately 75-80 MPH on the highway, and was attempting to turn into the driveway, the vehicle inadvertently shut off. A message indicating a transmission failure and other unknown warning lights were illuminated. The vehicle failed to restart after several attempts. The vehicle was towed to the dealer however, the cause of the failure could not be duplicated. The contact stated that the vehicle had been at the dealer for four months. The manufacturer was notified of the failure, but no assistance was provided. The vehicle was not diagnosed or repaired. The failure mileage was approximately 6,250.

The contact owns a 2023 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V172000 (Power Train) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.