GMC Sierra Complaints

15,732 consumer complaints on file.

#11581165April 4, 2024
ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
The contact owns a 2024 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the trailer brakes deactivated independently. The contact stated that the failure occurred while the contact was towing a trailer. The contact stated that the failure was persistent. The vehicle was taken to the dealer. The vehicle was not diagnosed; however, the trailer brake control module was replaced. The failure reoccurred. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 1,001.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580844April 3, 2024
ELECTRICAL SYSTEM, STRUCTURE:BODY
Tailgate drops without warning, lower button on tailgate doesn't work.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580979April 3, 2024
STRUCTURE
The contact owns a 2021 GMC Sierra 1500. The contact stated that there was water leaking through the rear sliding window. The dealer was notified of the failure and advised the contact that a fee would be charged for the repair. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 51,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11581039April 3, 2024
STRUCTURE:BODY
The tailgate unlatched while driving. This caused the paint on the tailgate to rub off on the jack of the trailer that I was hauling. This could have caused items in the back of the pickup to fall out onto the road. There is a current recall for 2021-2023 GMC Sierra's with the same issue, but my 2024 GMC Sierra is not included in the recall. The vehicle is going to be inspected tomorrow by the a body shop. There were no lights or messages prior to the failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580419April 1, 2024
STRUCTURE:BODY
GM refuses to fix a known design flaw in the back sliding glass frame on 2020_24 gmc sierra trucks. This issue will generate toxic mold as large quantities of water enter the cabin and can be extremely harmful for certain individuals allergic to mold. GM knows about this issue and tried to secretly advise techs via TSB 18-na-383 to apply sealant on the frame and if customer returns to replace frame. However they do not want to do this outside the 3 year warranty. The back glass on a truck is not a serviceable item.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580474April 1, 2024
EXTERIOR LIGHTING
When snowing the headlights freeze over. Have to stop on the side. Of the road and clean them off. They do not get hot enough to melt snow to be able to drive safe at night.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580525April 1, 2024
ENGINE
The truck had 8 glow plugs replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580555April 1, 2024
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
Vehicle caught fire minutes after remote starting. Fire appears to have started on firewall on the left side. We were about to take our kids to school vehicle could have easily caught our house and other property on fire. We did have the check engine light come on occasionally but it would always turn back off, vehicle only had about 12000 miles. Also none of the outlets inside the vehicle never worked.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11580328March 31, 2024
AIR BAGS
I was at a stop light and heard a loud noise like a shotgun blast. I felt a concussion hit me in the chest. I thought I had been shot at, then thought I was possibly rear ended but nobody was behind me. I noticed the airbag light was on, the hazards were on and I couldn't shut them off, and the seatbelts were, and still are all locked. But no airbag deployed. There was a smell in the cab that vaguely smelled like a cross between gunpowder and ozone. It's fortunate that I was not at freeway speed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580026March 29, 2024
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
My vehicle inadvertently locks the rear tires at highway speeds and then releases and drives. In some instances it may brake several times causing the tires to burn rubber for a short distance causing rear traffic to either swerve to avoid rear ending me and in a couple instances causes the rear following traffic to abruptly change lanes to avoid rear ending me
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580045March 29, 2024
ELECTRICAL SYSTEM:ADAS:BLINDSPOT:WARNING:LAMP, ENGINE, LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH
The contact owns a 2023 GMC Sierra 1500. The contact stated that the vehicle was idling excessively high without the accelerator pedal being depressed. While driving 70 MPH, the tailgate unintendedly opened. The tailgate warning light was illuminated. Additionally, the blind spot detection warning light illuminated without another vehicle being nearby. The vehicle was taken to the local dealer, who was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 6,100.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580168March 29, 2024
SERVICE BRAKES, HYDRAULIC
The contact owns a 2016 GMC Sierra 1500. The contact stated that while reversing into a parking space and attempting to stop the vehicle, the brake pedal required an excessive amount of effort to bring the vehicle to a complete stop. The vehicle returned to normal functionality, but the failure became a regular occurrence. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic). The VIN was included, and the vehicle was repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 63,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579683March 27, 2024
UNKNOWN OR OTHER
The radio volume went up to max an it's own twice, both times it almost caused a crash. Nothing would make to volume turn down, not the radio volume dial or the buttons on the steering wheel. I had to pull over, stop and turn off the truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579498March 26, 2024
STRUCTURE:BODY
My tailgate unexpectedly open as I was driving down the road. (2021 GMC 2500 Denali Sierra) This was the second time this has happened and lost things driving down the road. (3 propane tanks and a small grill the first and then an air compressor the second time) Both times it happened I opened and closed the tailgate with the vehicle running. Both times I was unaware of tailgate opening and did not notice until I got home. The first time it happened I thought it was operator error but after this weekend, I looked into this and see there was a recall on it this month. I still felt it was necessary to report incidents.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579253March 25, 2024
STRUCTURE:BODY
I have a 2021 GMC Sierra 1500 with a power 6-point tailgate. The inner tailgate has been spontaneously opening for some reason. It seems the electric lock mechanism trips. This could case the contents of my truck bed to fall out. This issue is a known issue for GMC Sierras and a recall has been issued for the 2500's and 3500's but for some reason not the 1500's even though the tailgate is the exact same. I have an appointment to have the issue serviced at dealership, but since there is no current recall they will not cover the expense.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579348March 25, 2024
SERVICE BRAKES, VEHICLE SPEED CONTROL:ACCELERATOR PEDAL
The contact owns a 2024 GMC Sierra 2500. The contact stated while stopped at an intersection, the vehicle moved forward while the brake pedal was fully depressed. The contact also stated on a level surface, the vehicle accelerated about 4 MPH without the accelerator pedal being depressed. The failure occurred on several occasions. The vehicle was taken to the dealer where the failure was duplicated; however, the dealer stated that the vehicle operated as designed. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 100.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579377March 25, 2024
SERVICE BRAKES
The truck is throwing a repeat of service trailer break
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578817March 22, 2024
UNKNOWN OR OTHER
I purchased a 2023 GMC Sierra 1500 Denali trading in the same 2022 version [XXX]. I would find the tailgate down after stopping. It became habit to make sure the tailgate was latched. Unfortunately, while pulling a trailer, the tailgate opened again while driving causing me to have to replace the top portion of the multipro tailgate. The new tailgate would be damaged a second time despite my efforts, but traded it in for the 2023 as it was. This continued but more often with the 2023. Two weeks ago I was pulling my trailer driving from San Diego to Las Vegas and we were flagged down by another car on [XXX], and we realized the tailgate had opened. We were thankful he did because had anything fallen out, we were super concerned it could cause havoc with the traffic that followed. We put a bungy cord on it. The next morning driving the trailer 4 blocks but knowing we would make a u-turn, and a sharp right turn, I opened the tonneau cover so I could clearly see the tailgate, I was pulling the trailer, and I had my eye in the rear view mirror. Lo and behold, the light turned green, I paid attention to traffic, and I made the uturn. I felt the tailgate being crushed. This time, it took out the entire tailgate, and caused moderate damage to what was also crushed on my trailer. The notion that these tailgates are not opening while driving is simply not true. I have experienced this not once, but twice. As if this cannot get worse, GM tells me my truck is not part of this recall. They so far have refused to give me the "fix" for it so I can fix on my own dime. And on top of that, my body shop told me the tailgate replacement is on back order for months with no idea when production for these will catch up. This one will cost $3300, my trailer $800, and the 2022 truck about $2800.00. Besides the obvious cost and aggravation, the bottom line is that it is a safety issue for other drivers. I am concerned. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578843March 22, 2024
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
Component or system failure: headlights and interior lighting Safety risk: Complete failure of the headlight system and all interior lighting, including the dashboard during active driving. System failed during nighttime driving while in motion. Reproduced?: No Inspected?: No Warning lights/system messages: None present at time of failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578846March 22, 2024
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
Component or system failure: Complete failure of the headlights and interior lighting, including the dashboard after post remote start - ignition on. Safety risk: Headlights and other interior lighting would not activate leaving the vehicle completely dark. The only remedy was to completely restart the vehicle. Reproduced?: No. The vehicle is brand new with less than 100 miles. Inspected?: No warning messages: there were unpresented in the DIC. However, the vehicle also would not shift from drive.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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