GMC Sierra Complaints

15,732 consumer complaints on file.

#11446954January 10, 2022
VEHICLE SPEED CONTROL, POWER TRAIN
Transmission jerks, slams, forces a feeling of being rear-ended, delayed acceleration with sudden engagement causing uncontrolled acceleration. I've had it looked at every time I've taken it into the dealership for regular maintenance. They haven't been able to reproduce it as it only happens once, first time after not driving it for a while. No warning lamps or messages ever appear.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446957January 10, 2022
STRUCTURE:BODY
Tailgate falls open while traveling down the road
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446970January 10, 2022
SERVICE BRAKES
Brakes failed in parking lot, had a solid pedal and could not get truck to stop
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446803January 9, 2022
SERVICE BRAKES
Leaving a parking lot and had a complete loss of brakes due to faulty vacuum pump.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446706January 8, 2022
ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM
Less than 300 miles on the vehicle and it has thrown an error code P2B60. Relating to the engine coolant flow control valve position sensor. I have taken it to my local GM service center and they cannot see me for weeks. As of this morning the check engine light has disappeared but my fuel economy has severely decreased. It seems suspicious and possibly dangerous that it showed a check engine light with a warning of reduction in engine power the night before and disappeared in the AM
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446718January 8, 2022
UNKNOWN OR OTHER
Spare tire fell off while parked. The bracket holding the tire in place failed. Significant corrosion present.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446689January 7, 2022
ENGINE
Every time I start the engine I get loud ticking noises. This is Lifter noise! I took it into the Dealership and they said the noise was normal. GM is known for having this Lifter problem in the heads. This can destroy my engine, causing premature wear on the lifters themselves.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446584January 7, 2022
ELECTRICAL SYSTEM, STEERING
Started vehicle up in public parking lot and it had service power steering and ESC messages. Vehicle could not turn and had to be towed to dealership. The problem has been confirmed by the dealer but they have had the vehicle for 2 days and cannot fix the problem. Dealer states code keeps coming up in BCM but they are not sure why or how to confidently fix it. There were not warnings or any symptoms of this problem as it drove to work fine that same morning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446497January 6, 2022
ELECTRICAL SYSTEM
The contact owns a 2018 GMC Sierra 1500. The contact stated while driving approximately 70 MPH, the trailer wiring harness system warning message was illuminated. The vehicle was taken to a local dealer where it was diagnosed with needing the wiring harness replaced; however, the vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 77,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446354January 5, 2022
UNKNOWN OR OTHER
The rear window defrost hasn't been working since I've owned the truck. Doing some research on it.....there's lots of complaints online with issues involving this problem. Some fires also. I did find that there were 160,000 or so recalled in Canada. Same issues. Mostly involving being remote started. Which is what happened to mine. I remote started mine....walked about 50 yards to the truck...heard a loud pop.....the rear window exploded ! Glass went everywhere !! It's definitely a safety issue....especially if someone had been in the rear seat !! I've ran the Vin # and checked with the closest dealer but they weren't any help. It's hard to figure there were so many issues in Canada....but none here. The replacement glasses are made in Canada, about every complaint I read involved remote start during cold weather.....which the rear window defrost come on if the temps below a certain level. Lots of owners were disabling the defrost on the rear window by removing the fuse and or relay.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446391January 5, 2022
ELECTRICAL SYSTEM, SERVICE BRAKES
My truck trailer Brake system continues to come on and my doors are locking and unlocking. It has my 4x4 trans rubbing as well. Its a non stop issue everytime I get into my truck it does this and it happened out of no where. I had this truck a little over a year now.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446097January 4, 2022
SERVICE BRAKES, ELECTRICAL SYSTEM
At 50,000 miles the "service trailer brake system" error message appears constantly due to factory defects and its very common. These trucks should be recalled everyone is in danger on the roads and its a very common problem. I have not taken it to the dealer because i should not have to pay for this very common problem, it should be recalled.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446116January 4, 2022
SEAT BELTS
Driver's side seat belt receptacle does not hold. It is difficult to get seatbelt to latch properly. Sometimes it latches and releases later. Dealer confirmed seat belt receptacle needed to be replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446207January 4, 2022
SERVICE BRAKES
Still having the slow parking problem. Almost hit a car today when trying to stop while parking truck. Software update by dealer did not fix the problem. This happens every time I try to park and/or slow stopping at a crosswalk.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446052January 3, 2022
SERVICE BRAKES, FUEL/PROPULSION SYSTEM, POWER TRAIN
. THE ENGINE MOUNTED MECHANICAL VACUUM PUMP MAY DECREASE OVER TIME DECREASING THE AMOUNT OF VACUUM/ POWER BRAKE ASSIST, CAUSING VEHICLE NOT TO STOP. SAME AS MY 2016 GMC. I HAD TO ALSO HAVE THE ( EVAP CONTROL VALVE REPLACED). TRANSMISSION SURGES AND ON THE DOWN SHIFT ITS KNOCKING COMING TYO A STOP. .IN MY REAR ENDING A PARKED VEHICLE BECAUSE OF THE BRAKES PULSATING AND NOT STOPING SCARED ME. .DEALERSHIP. .DEALERSHIP .NO
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11445846January 2, 2022
POWER TRAIN
transmission shifting rough
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11445825January 1, 2022
EXTERIOR LIGHTING
Headlights were about as bright as a candle while using high beams changed the bulbs and used a head light restoration kit and within a week headlight lenses were hazed over again high beams are no brighter than low beams
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11445692December 31, 2021
STEERING
Steering Suddenly stops working when making a turn and have no control of the steering . Happen 3 times yesterday almost was in a accident. Then starts working again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11445706December 31, 2021
SEATS
Neither of the two rear seat head rests stay up. Also, they are too low when extended to full height to protect an adult from head injury in a crash or hard stop. Your head hits the rear glass window. I am 5'-9" tall. The head rest does not lock or remain up in any position. Applying very light pressure to the head rest causes it to drop all the way down. This occurs if you sit in the seat and lean your head back. I'm concerned that someone will be injured if these head rests aren't made to engage and stay in the extended positions. The front rests have a lock button that you must push to lower the head rest. The rear ones do not have this feature. This problem has occurred since the vehicle was new. I mentioned it to the dealer but they said that is how they are designed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11445707December 31, 2021
UNKNOWN OR OTHER
WHEN THE DEALERSHIP INSTALLED THE PASSENGER AIRBAG DUE TO A RECALL THE DASH CRACKED WHILE THEY WERE WORKING ON THE TRUCK
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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