*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Service brakes
June 29, 2025, Driving on the St. Francis loop in Amarillo, TX, brake lights start flashing, the warning sounds happening, no brakes. I had already slowed down to 35-45 mph due to road construction ahead. I weaved through the cones and as soon as possible, hit the ditch and then coasted to a stop. (I didnât think about the emergency brake, in my panic.) I turned the vehicle off and called my husband. I decided that I wasnât pulled over far enough over in the ditch, so I started the pickup again. The lights and warning signals for the brakes were gone and when I pressed on the brake pedal, there were brakes again. I drove home at 35 mph, knowing I could use the emergency brake at that…
Jun 29, 2025Suspension
They should be responsible for repairs or replacement of the cheap made frames that rust away so fast so u ainât gotta worry about your truck fallling apart going down the rd and the lower control arms made of cast that rust from inside out and you donât know until breaks while driving along with camber adjustments where they can throw alignment out with a single bump. Mostly the frame replacement is major always having to plate frame or check to make sure it will be able travel long trips or haul stuff in bed or a trailer with breaking or falling off truck causing wreck frame repair is major and time consuming if you donât have proper stuff and definitely expensive and lower control…
May 22, 2026Power train
The contact owns a 2012 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly downshifted, especially between second and third gears. The check engine warning light was intermittently illuminated. In addition, the contact stated that the engine felt as though the engine mounts were inoperable. The contact pulled over to the side of the road and turned off the vehicle. The vehicle was restarted, and the vehicle resumed normal driving. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was made aware of the…
Jul 14, 2014 · 20,000 milesElectrical system › Instrument panel › Speedometer/odometer
Odometer Fraud. The contact purchased a 2012 GMC Sierra 1500. The contact stated that it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the mileage was 111,000, and at the time of registration, it was discovered that the mileage was 243,000. The Carfax Report indicated that the vehicle was serviced at 149,000 and 179,000 miles, then registered at 149,000 and 179,000 miles on August 8, 2024. The contact had filed a police report with the Dillon Police Department -Special Ops Police Department.
Aug 15, 2025 · 243,000 milesElectrical system
P0521 has been addressed/replaced almost nine (9) times. âLow Oil Pressure-Stop Engineâ is another one that is not completely functional. The truck is using oil but we cant find evidence of leakage. Services performed at dealership or certified shop. Troubleshooting was performed, Im told. I cant vouch for the quality of the workmanship. This should not be an issue at this mileage 100,100 ohe hundred thousand miles and oil components going bad is not good. GMC has sold me a truck that needs a new engine component. Please help. Thanks [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Apr 3, 2025Air bagsCrash1 injury
The contact owns a 2013 GMC Sierra. The contact stated that while driving at 70 MPH, she lost consciousness. After regaining consciousness, the contact discovered that the vehicle had crashed into two vehicles and that the driver's side air bag had deployed. The police and paramedics arrived at the scene; however, no one involved in the accident needed immediate medical assistance. A police report was filed. About a week after the accident, the contact stated that they began to develop open sores on both arms as black metal fragments began to leak out of these sores. The contact went to the doctor and was treated for the injuries and was referred to a dermatologist for further assistance.…
Mar 9, 2024 · 312,000 milesService brakes
Faulty Tire Pressure Management system. Looking for recalls or service bulletins.
May 28, 2020Unknown or other
Manufacturer interior defect - Crack on dash w/potential to crumble all the way in Diminishes vehicle
Jan 1, 2023
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.