GMC Complaints

The vehicle tends to not turn on unless I give it a boost. Battery is new and alternator is good It occurs twice to three times a day

Nighttime backing up is to dark to see in the camera. The reverse lights are not bright enough to highlight the area to see correctly. This is a major concern as i almost backed up over my child at night as i could not see them in the camera. Please address with manufacture to resolve the issue. This truck has one piece LED lights that can not be pulled and swapped out with a brighter bulb. would need to replace the entire fixture.

The rear main seal for the engine fails because of a clogged PCV valve. This was a problem on previous years for the Terrain and other vehicles that carried a similar type of engine. There was a recall for those previous years (2011-2014). My vehicle is a 2015 GMC Terrain, and I am currently experiencing the same issue. I took my vehicle to a licensed dealership and they quoted me a price of close to $3,000 to make the necessary repairs. In my opinion, since the same issue/problem is occurring, there should be a recall issued to include at least the 2015 year models for that engine.

2nd incident, 1st incident reported: Complaint number 11570916. Was driving the vehicle and the steering wheel locked again as I was making a right turn. The service ESC light immediately came on with the T/C light on the dashboard as well. I had roadside assistance pick up the vehicle to take it to the service department because I was afraid to drive the vehicle. According to the service invoice, they were not able to replicate the problem, but I have a photo of the error code on the dashboard. I was told that they checked the brake module and reprogrammed the computers.

I had an issue with the All Wheel Drive system. The message Service all wheel drive system appeared as I was driving the vehicle. They found a rear differential module software issue 2810695. They found DTC C056D stored in rear diff control module. They programmed rear diff module and retested. Claim code is 1BYN199108119. I do not have any parts but I was told that they send warranty components back to the manufacturer for inspection.

I was driving the vehicle, approaching an intersection and making a right turn. As I turned the steering wheel, it locked. I kept trying to turn the steering wheel and it finally did. A Service ESC error appeared on the dashboard. The T/C light came on as well. I drove it home. The error was gone the next time I started the vehicle. The service code kept coming on intermittently. Appointment scheduled on 11/10/23. GMC service dept stated they wouldn't be checking the vehicle until next Monday, so I could take it home. I rescheduled and took it back on 11/13/23. My vehicle was there for 32 days. My safety was at risk because of the failure of the steering wheel to turn, with traffic in the lane next to me as I was turning.The service dept was able to download the error codes.Code C0800 was captured. The steering gear assembly was removed and replaced, programmed and calibrated.

Purchase new in Sept 2022. I did not notice that my trailer hitch Connector was not working until after a year later. when i needed to hookup my enclosed car hauler trailer. And notice that my trailer daytime running lights where not working. Only brakes/,turn signals and four way flashers. I contacted my dealer and again they found no issues with the factory harness. leaving me on the side of the road until morning. As i had no running lights. After arriving back home. I crawl under the rear bumper. just to check the connections. I could not see anything nor would i know what to look for. I called another Gmc dealer and they mention that they been having problems with the module for the factory trailer connector. Still having issues

I purchase my 2022 Denali 1500 crew cab Brand New. After a few weeks of ownership. My mulitpro tailgate would open on its own. I had taken my truck to the nearest Gmc dealer to have it looked at. They said they could not find anything wrong with it. A few month later the exact thing happen to me with my wife in the truck. Again i'm back at the dealer and they could not detect the problem. So i left and headed home. I had to take a trip to Pennsylvania and after driving with my enclosed car hauler attach. The tailgate drop open striking my trailer level wheel , putting a dent in my tailgate/ Took it back to Gmc in Alcoa Tn and again no issue or fix was provider. Still Having issues with my Multipro Tailgate opening on its own.

The contact owns a 2017 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

No warning light presented to warn of transmission issues. While driving is hesitating sluggish when accelerating and stalling around 60mph then shifts . Putt Putt then pick up a bit then back down.