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