GMC Complaints

The contact owns a 2022 GMC Canyon. The contact stated that while the gear shifter was shifted to park(P), the contact was unable to remove the key from the ignition switch. The contact stated that after turning the steering wheel to the right in a certain way, the key was able to be removed from the ignition switch. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a complaint was filed. The failure mileage was approximately 30,000.

My 2025 Sierra 2500HD repeatedly displays “Trailer Brakes Disabled—Service Required” with a lithium- and solar-equipped trailer. The truck passes the EL-52641 simulator, but the failure occurs intermittently while towing and resets after Park or reconnecting the trailer. This closely matches the higher-trailer-battery-voltage/backfeed condition described in N232414840. Please open a TAC case and determine whether my 2025 has the revised Trailer Brake Power Module or whether GM engineering authorizes module replacement.

The contact owns a 2008 GMC Acadia. The contact stated that while driving at an undisclosed speed, the driver’s side air bags deployed; however, the vehicle was not involved in a crash. The contact stated that while the vehicle was parked, the contact attempted to start the vehicle and the starter was inoperable. No warning lights were illuminated. The vehicle remained at the residence, and the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 200,000.

Engine has a noise (chirp) when vehicle delivered. Found out after purchase that a known problem was present in the engine compartment that engineering has been unable to identify. Bulletin #PIP6045B (Oct20,2025) Document ID:7006702 With the engine failures General Motors have had I have concerned about operating. A failure could result in danger to the occupants.

The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed, there was a misfire coming from the vehicle, the vehicle was shaking and vibrating abnormally before the vehicle went into LIMP Mode. The traction control light and other unknown warning lights were illuminated on the instrument panel. The vehicle was taken to a dealer to be diagnosed. The vehicle was diagnosed with a lifter failure inside the engine. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 86,000.

The telematics module for the OnStar system continues to stop working, I have had this truck in a dealership service center multiple times for them to reset the system (instead of replacing the defective parts). Along with the infotainment system not working properly (cuts in and out, blinks on/off, delay in actions) Doors unlock while driving, front/rear cameras come on when I stopping at an intersection, I have given them documentation of the diagnostic reports from dealerships

Upper front grill trim piece was repaired under recall. After being fixed I was driving and it broke off flying up in the air and behind the truck. It did not hit another vehicle. Adaptive cruise control stopped working. Lane assist stopped working. Brake pad wear sensor error message stating it doesn't work. Vehicle has 19,000 miles.

GM pushed a system update to my truck last week. I noticed the front bumper sensors are no longer working. In addition, the auto start-stop function no longer works.

My windshield wipers come on when you start the car, or when you just click the switch to put windows up, but the wiper switch is off. The wipers stay operating from 5 to 10 minutes before they shut off, and I am concerned the windshield and/or wipers may become damaged. This issue has just started to occur within the last week. There have been no warning messages of any type displayed.

The vehicle has about 38000. The warrantee expired about 6 months ago. About three weeks ago I started the engine, it sounded like a cement mixer filled with rocks. I had it taken to my dealer. They investigated the problem and determined that it has bad lifters and bent push rods. The dealer told me that it is a known problem but it is not covered by the current 6.2l engine recall