2017 GMC SIERRA 1500 Complaints

The contact owns a 2017 GMC Sierra 1500. The contact stated while driving approximately 30 MPH, he heard an abnormal noise and while depressing on the brake pedal, the vehicle failed to decelerate. The contact stated no warning light was illuminated. The contact was able to cruise to the side of the roadway until the vehicle decelerated. The contact stated he shifted into reverse to stop the vehicle completely, before shifting into park. The vehicle was not drivable. The contact towed the vehicle to his residence. The contact stated he had an independent mechanic come to his residence and he was informed that the brake caliper and the front passenger’s side brake pads needed to be replaced. The vehicle was not repaired but was pending repairs. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had been informed of the failure. The failure mileage was 53,579.

while driving I get a repeating alarm chime and "Service Trailer Brake System" caution statement on dash panel. This alarm will go off as often as once every three seconds. It is both startling and a hazard to the driver and while towing condition of the trailer brakes is unknown.

When I'm coming to a stop and the vehicle starts downshifting, the last shift feels like the tranny is going to fall out. Forceful jerk and clunking noise. It's sporadic. One week it's almost every day, one week it seems fine. The dealership said they have heard this a lot and laughed when they told me the manufacturer has told them it's normal. It's definitely not normal.

Service trailer brakes light pops up and chimes over and over again. I've never pulled a trailer. It's distracting and will randomly go off. Seems to go off when gas is below 1/4 tank. Sometimes it goes months without happening. Sometimes it happens a few days in a row. The dealership says they can't do anything unless they see it go off.

Brakes have stopped working while driving down the road, previously they have occasionally glitches out primarily for example when I pull into a drive through restaurant or in a parking area. Service Brake Assist pops up.

The contact owns a 2017 GMC Sierra 1500. The contact stated while driving 70 MPH, the vehicle began to independently brake without depressing the brake pedal. The contact stated that the "trailer brake service" and the "service brake" warning light were illuminated. The contact pulled off the road safely and drove the vehicle to his residence. The contact had not taken the vehicle to a local dealer. The vehicle was not diagnosed or repaired. The contact had received an unknown recall letter from the manufacturer. The manufacturer had not been informed of the failure. The failure mileage was approximately 14,230. The VIN was unavailable.

Rear window defroster started smoking and broke my back window. Known issue. Recalled only in Canada not in US but US vehicle having same issue.

The front driver side window won’t roll down or engage; the a/c blows warm/hot on the drivers side vents; the stereo system continues to, “Glitch” changing stations, displaying other information without the screen being touched. These often cause discomfort by not operating properly. The dealer did not suggest any concerns upon my purchasing the vehicle. Vehicle was never taken to a certified GMC dealer for these issues.

The contact owns a 2017 GMC Sierra 1500. The contact stated that while stopped at a traffic sign, the vehicle lost motive power. The vehicle was towed to the dealer and diagnosed with Vehicle Control Module (VCM) failure. The contact was informed that the VCM needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 84,000.

My rear window suddenly shattered. Heated sliding back window. No other explanation. My vehicle was parked in my driveway.