GMC Complaints

After leaving a car wash on 12/19/22, the engine began sputtering and did not seem to be able to get any gas. After pressing gas pedal, the vehicle slowly moved forward, but was shifting hard. Pulled over in gas station parking lot and turned vehicle off. Checked Engine. Vehicle would not restart. Vehicle was towed to dealership. They uncovered a broken valve spring, which also caused the catalytic converters to fail. Total bill was over $7500

Engine ticking at start up and acceleration, shuddering, rough idle, potential lifter issues. This has been going on since i bought the vehicle brand new, just now finding out about potential engine failure.

Unknown mostly. Water pump ended up cracking while running. Power failure notice had come up on dash and then vehicle shut off while running. Dealership made repairs but unable to identify root cause.

Water entering from the rear window causing rear seats and roof hard cover to get wet and cause a wet odor (humid). 2020 GMC 1500 AT4

While driving on the highway my front grill upper molding flew off and hit my hood and windshield. It ended up landing in the middle of the highway and other vehicles running it over.

Was driving my 2023 GMC Sierra in a mild snowstorm after leaving the grocery store and heading home. It was about 10 minutes after dark and it has just started snowing. I was only 5 minutes down the road and the visibility in front of me suddenly & drastically declined. I could barely see the road. I could barely make out anywhere to turn out to. Once pulled over, I walked to the front of the truck and the headlights AND fog lights were completely covered in snow. I wiped them off with my hand and could then see great again. Well, 5ish minutes down the road again and they were back to completely covered. Twice I wasn't able to pull over, due to the steep terrain and no shoulder so, I had to push on, traveling at no more than 4MPH. And getting out during one of the 7 cleanings, I almost slipped and fell. It took me 48 minutes to get home. A trip that usually takes 25! The HID headlights on my other truck don't have this problem. And the aftermarket LED headlights on another vehicle of mine have built in heating elements. You would think the OEM would've thought of this option but, they don't offer it! If it wasn't for my 20+ years experience of driving in the snow, I would've been left stranded or wrecked/totalled the truck due to this major safety oversight!

Vehicle was traveling down the freeway at 70 mph when suddenly the motor stopped running and it shifted automatically into neutral. We had to coast the car off of the freeway to the side of the road and stop. One stopped the motor no longer would start and we had to call a tow truck to get towed to the dealership. Dealership has stated that the motor will be need to be replaced. Wheel samples were taken and results were excessive metals found in the oil. Dealer noted likely it was a bearing issue that failed in caused the motor to fail. A complete engine replacement will be required from the dealership

The contact owns a 2012 GMC Terrain. The contact stated that while attempting to reverse out of a parking space, upon putting shifting into reverse, the rearview camera screen turned off. The contact stated that the display screen went blank, and due to the failure, the vehicle bumped another vehicle that was also reversing. There was no warning light illuminated. The contact stated that it was a minor impact and that there was no cosmetic damage to either vehicle. The Police was not called. There were no injuries reported. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the center console display was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 68,000.

The contact owns a 2020 GMC Terrain. The contact stated while reversing, the rearview camera screen displayed a blue image. There was no warning light illuminated. The dealer was notified of the failure and informed the contact that a fee would be charged for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 104,000.

The contact owns a 2021 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train); however, the contact believed that the remedy offered would cripple the vehicle and interfere with his work. The contact works in Alaska and the remedy involved the transmission being limited to fifth gear, preventing the possibility of a wheel lock up condition, which could occur while downshifting from eighth gear. The manufacturer was made aware of the issue and advised the contact to find a dealer that could repair the transmission. The contact had not experienced a failure. Parts distribution disconnect.