The contact owns a 2022 GMC Yukon. The contact stated that the turn signals audible sound failed to operate as designed. Additionally, while reversing into a parking spot, the vehicle turned off while going over a bump. The message "Park" was displayed after restarting the vehicle. The contact stated that while driving 25 MPH over a bumpy road surface, the vehicle turned off and the brakes became inoperable. The vehicle was coasted to the side of the roadway. Upon restarting the vehicle, the message "Service Transmission" was displayed, and the turn signal sound became operable. The contact was able to drive to the residence. The manufacturer was notified of the failure and agreed to tow the vehicle to a dealer to be diagnosed. The vehicle was not yet diagnosed or repaired. The failure mileage was approximately 25,000.

- River Ridge, LA, USA

Dropped my 2022 Yukon Denali off May 7, 2025 to Mike Reed Chevy due to failed transmission. Order was placed May 15, 2025 for a valve body part. Multiple phone calls were made without success on status of repair. I was forced to drive to the dealership for answers on June 10. I was told that due to my car being under warranty I am at the mercy of GM. The Part needed is apparently on indefinite backorder. Contacted GM to expedite part and was told it could be 3+ months before I can expect my car back. Claim number with GM is 55328239. After doing research, there is over 2000 people who are experiencing the same issue. Mike Reed Chevy nor GM offered assistance with a rental to offset the inconvenience. It was only until I demanded to speak with the service manager that I was given a rental car. As someone who manages a hospital, the delay in obtaining this part has caused significant hardship, and to date, there has been no clear timeframe provided for when the part will become available or when repairs can be completed. As a consumer, I am left without reliable transportation as the dealership has requested me to return my rental. The lack of transparency or timeline for resolution is deeply concerning. This has not only impacted my ability to fulfill daily responsibilities, but has also raised broader concerns about the availability of necessary vehicle parts and the protections in place for consumers in similar situations. I am seeing guidance or intervention from your office to help expedite this matter, whether through direct communication with the manufacturer, identifying legal remedies available under consumer protection laws, or advocating on behalf of consumers facing unreasonable delays in vehicle repairs due to supply chain issues. Any assistance or direction your office can provide would be greatly appreciated.

- Richmond Hill, GA, USA

Total valve body failure in the transmission at 30k miles. I was traveling with my daughter on the freeway at 65 mph and the vehicle went into limp mode. No indication of problems prior to this incident. Vehicle has been at dealer going on a month now. They have no valve bodies available, on a national backorder. They replace it with the valve body that is known to fail again. GM knows about this problem and the solution they offered was only a software upgrade so the back tires don't lock up when this happens. My daughter and I could have been seriously hurt or killed.

- Chanhassen, MN, USA

Driving on the highway the engine suddenly revved high and suddenly went into limp mode on the highway. Reverse is no longer operational. 2022 GMC Yukon with 49,000 miles. Limped the vehicle to the dealership who has indicated it needs a new transmission valve body that is currently on national backorder given the prevalence of the issue. I have been requesting a work order denoting the failure and required repair but have not yet received from my dealership. I will pass this along as soon as I receive it. I spoke with GM customer service last night requesting their assistance in getting this for me.

- Marietta, GA, USA

Vehicle has no reverse. 21,750 miles and have been told by the dealer that it needs a transmission valve body which are unavailable at this time and it could be several months before they are able to obtain the valve body.

- Prairie Du Chien, WI, USA

The engine started making a rattling sound. Brought it to the dealer and they told me the engine is bad and it needs a new one. They told me this issue with lifters and the fuel management system is a common problem leading to internal metal components breaking. My car has been with the dealer since 12/30/24 and I was told this week from the dealer the problem is so big there aren-??t any engines available and they have no idea when I-??m getting it back. When I initially dropped it off, they said approximately a month. Now they are saying they don-??t have a clue.

- Watertown, CT, USA

Sudden loss of power while driving approximately 60 MPH. Dash saying "press engine start". The vehicle lost all functions while moving at about 60 mph with zero warning signs. After diagnosis with the GMC dealer, crank bearing failure led to complete motor loss. The concern was there was no warning signs, noises etc. that would allow to get the vehicle to a safe location off the road. We were lucky we were going straight and not on a corner and able to coast to a wide enough location to get the vehicle off the main lanes of traffic.

- Junction City, OR, USA

I was driving on an expressway in Chicago heading to work at 5am on [XXX] morning. While driving my engine shutdown and I lost engine power to my vehicle while doing 70mph. There was no warning, no warning lamps and no noise to indicate there was any issues. The vehicle just died while I was driving. I had to coast to the shoulder with traffic all around me. Luckily I was able to avoid other vehicles and they were able to avoid me when they realized I was having trouble. Though there was a very close call where I almost got into an accident. When I pulled onto the shoulder the vehicle completely shutdown. It would not restart. I had to call a tow company to have my vehicle towed to the Dealership. Luckily, I was able to find one nearby that was open at that time on Christmas Eve. The dealership mechanics went over my vehicle and determined that I had complete engine failure. The bearings on the bottom end of the engine spun out. I now need a complete engine replacement along with whatever other components were also damage. This incident was a major safety issue. I was luckily that I did not end up in a major accident due to the loss of complete engine power. This is a major issue that needs to be looked into and GM needs to be held responsible for not only my vehicle but all others that this is happening to. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Orland Park, IL, USA

My transmission began having problems the day it was delivered to me. After the oil change which they delivered to me at low percentage was completed the motor was ticking. It has had a burning smell and has been in and out of the shop and going back soon. I was on the expressway and the speed declined with error messages on the dash almost resulting in an accident. No one is listening to my concerns and now the motor has a metal clinking noise

- Detroit, MI, USA

Engine failure as a result of a bearing failure. I have been waiting since December 3, 2024 for a replacement engine.

- Sun City West, AZ, USA

My vehicle radiator fan immediately cut on high when I turned on the vehicle. The temperature of the vehicle was normal. I also experienced this when the engine was completely cold. I was assured there was no need to tow the vehicle but I could drive and schedule service with dealer. The software triggered a reduced acceleration condition. This did not allow me to accelerate as needed while navigating an interstate interchange.

- Kennesaw, GA, USA

Transmission shifting gears sporadically between 49-57 mph and 19-24mph. If I-??m driving at 53 mph, I take my foot off the gas and slow down to 50 mph, when I start to slowly accelerate again, it jerks and makes a loud noise as if the transmission has trouble shifting. Took it to the dealer 3 times now. First time they said they can-??t find anything wrong. Second time they replaced a valve body that supposedly would fix it. It didn-??t. Third time they couldn-??t find anything wrong with it. I don-??t feel safe driving around my 3 kids all the time.

- Highland, MI, USA