GMC Sierra Complaints

15,732 consumer complaints on file.

#11541089August 28, 2023
SERVICE BRAKES
The contact owns a 2020 GMC Sierra 1500. The contact stated while driving 60 MPH, the service brake, check engine, and ABS warning lights were illuminated. The contact took the vehicle to an independent mechanic to be diagnosed and it was determined that the passenger’s side rear caliper needed to be replaced. The vehicle was not repaired. The vehicle was taken to the local dealer to be diagnosed, and the contact was informed that the rear passenger’s side caliper needed to be replaced. The vehicle was not repaired due to the parts not being available. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 20V116000 (Service Brakes, Hydraulic) however, the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 69,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541181August 28, 2023
SERVICE BRAKES
Service Trailer Brake System Defaulting and is taking more time to stop my 2017 GMC Sierra Truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541202August 28, 2023
AIR BAGS
The contact owns a 2008 GMC Sierra 1500. The contact stated that while the vehicle was parked and turned off at the residence, the front windshield cracked. Upon inspection, the contact noticed that the front driver's and passenger's side air bags had deployed without impact. The vehicle was towed to the dealer, where it was diagnosed, and it was determined that a short circuit was caused by water damage in the air bag modules underneath the front driver's and passenger's side seats. The vehicle was then towed to a body shop for the air bags to be replaced; however, the replacement parts were on backorder. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 38,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541273August 28, 2023
ENGINE, FUEL/PROPULSION SYSTEM
Truck is a diesel. Fuel pump blew up and died in the middle of the street. Now I'm being told the Fuel system needs completely re done and will cost me 10g. I also found a lawsuit for this issue as well.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540671August 25, 2023
UNKNOWN OR OTHER
This vehicle has a remote tail gate drop function in the center console. The button is extremely easy to accidentally activate and will activate at any time including when in gear. This creates a significant safety risk as the tailgate can accidentally open while driving at high speeds and cause any load or objects in the bed to fall out and become dangerous projectiles and/or significant roadway hazards. In addition there is no warning message to indicate that the tailgate has opened, creating further safety concerns that the vehicle operator would not realize that the tailgate has opened until they start to lose the contents of the bed. There is no vehicle setting that will disable this function, creating a situation where it is impossible for the operator to ever safely secure objects in the bed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540751August 25, 2023
SERVICE BRAKES
WHEN DRIVING HOME AFTER PICKING UP MY 2.5-YEAR-OLD AND 6-MONTH-OLD THE BREAKS FELT VERY ODD AND NOT RIGHT. WHEN I APPLIED THEM, IT FELT ROUGH TO APPLY AND THEN HEARD A NASTY SOUND COMING FROM THE REAR OFF TRUCK. I TOOK MY TRUCK IMMEDIATELY TOO THE DEALER AND JUST GOT THE PHONE CALL BACK THAT THE MASTER CYCLINDER FOR MY BRAKE SYSTEM NEEDS TO BE REPLACED. THIS VEHICLE HAS 22,500 MILES ON IT AND IT ALREADY NEEDS SOMETHING FIXED LIKE THIS IS PRETTY SCARY SINCE MY FRIEND JUST HAD IT HAPPEN TO THEM AND THEY GOT IN A MAJOR CAR ACCIDENT. THANK GOD I DIDNT HAVE TO PUT MY FAMILY THROUGH THAT. HAVING A BREAK FAILURE IS SOMETHING NOONE WANTS AND NOT WHEN THE VEHICLE IS PRETTY MUCH BRAND NEW STILL. THE DEALER HAS CONFIRMED THAT THIS IS A VERY RARE CODE IN TERMS THEY USED TO BE HAPPENING. THERE WAS NO WARNING LIGHT OR ANYTHING IT JUST HAPPENED THEN AS I WAS TAKING IT UP TO THE DEALER, I GOT THE SERVICE BRAKE SYSTEM ALERT ON MY DASH.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540776August 25, 2023
ENGINE
The contact owns a 2018 GMC Sierra 1500. The contact stated that while turning left at an undisclosed speed, the vehicle lost motive power. No warning light was illuminated. The contact was able to restart the vehicle; however, the failure recurred. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540851August 25, 2023
ELECTRICAL SYSTEM
Backing out of driveway, suddenly lost the transmission. I was stranded at about a 45-degree angle into the traffic lane. I had no gear position indication (an automatic) and couldn't move the truck under it's own power. Shut it off and restarted twice before I got it into "limp-mode" and, while abrupt and harsh, managed to get back into my driveway. Found fault code U0101, Lost Communication with TCM (Transmission Control Module). Had never heard that this has become a common problem. Discovered quickly GM has no parts available, no repairs available, and that it is happening to thousands of GM trucks from model years 2008 to 2015. The truck is useless without this module function. We use this truck to tow a 12000+ lb. travel trailer. I can't imagine how bad this could have been in freeway traffic with such a load. Have been told GM put the part on a national back order in October of 2022, with no estimate of availability. It's now late August of 2023 and still nothing available. Has me concerned that one of these vehicles could stall right in front of me in traffic! I can't afford to replace this vehicle, can't move it, and am relegated to going to work on a motorcycle- in traffic with other GM trucks just waiting to experience this failure. And winter is coming...
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540460August 24, 2023
POWER TRAIN, ELECTRICAL SYSTEM, SUSPENSION
I was driving 75 mph in traffic when my steering wheel jerked hard and the truck made a loud noise from underneath. Lights on dash engine light and traction light on. Dash read out said service stabilitrak and service traction control. I could have been hit from behind. The truck was stuck in 3rd gear. Would not go but under 30 mph. This all happened [XXX]. My dad had stroke, I wasn't able to assist him because of this failure. Had truck taken by wrecker to dealership. Told me it was failed Transmission control module, which are and have been on backorder order since summer of 2022 globally. I drove back home and sent TCM to be repaired. 1286.00 dealership charged me 146.00 wrecker was 125.00. This is the 2nd time this truck has endangered my life. 1st time it was the 1st injector that put it into limp mode. These trucks with the limp mode, are going to get some one killed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540468August 24, 2023
UNKNOWN OR OTHER
I was driving and the transmission control module failed, putting the truck into limp mode with no prior warning. This was a hazard to myself and other drivers as it happened on a very busy road. I use this truck to pull our fifth wheel camper and luckily we were not pulling the camper at that time or this could’ve been a lot worse with the truck just stalling putting my families safety at risk and being broke down in the middle of nowhere. I took the truck to a repair shop in the city that I live in and it was confirmed that the TCM was bad. Tried to order a new TCM and they are back ordered for months and even over a year. Had to send it into a company in South Carolina for repair of the TCM with a cost of approximately $1300. There are thousands of people with this issue, and this should’ve been addressed by GM and a recall sent out to the owners of the vehicles. After the truck went into limp mode, there was a error message but no other prior warning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540495August 24, 2023
SEAT BELTS
The contact owns a 2019 GMC Sierra 1500. The contact stated while her husband was driving at an undisclosed speed with her in the front passenger seat, he noticed that the vehicle in front of his had stopped. The contact stated that her husband immediately depressed the brake pedal, causing the vehicle to forcefully stop. The contact stated that the front passenger's side seat belt pretensioner failed to retract, causing her to hit the back of her head against the headrest. The contact stated that she sustained neck injuries but did not seek medical attention. The vehicle was taken to the local dealer, where it was diagnosed, but the failure could not be determined. The vehicle was not repaired. The contact stated that the failure had been recurring. The manufacturer was not notified of the failure. The failure mileage was 73,833.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11540625August 24, 2023
POWER TRAIN
Transmission problems. Had to replace at 95,000 miles. Seeing problems online with same GM pickups with less miles and transmissions going out. General Motors has a problem and not addressing it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540301August 23, 2023
AIR BAGS
The contact owned a 2015 GMC Sierra. The contact stated that while driving at an undisclosed speed, another vehicle spontaneously switched lanes onto her lane, causing the contact to swerve out of the way and crash into the median; however, no airbags were deployed. The vehicle was towed to a tow yard. The insurance company deemed the vehicle totaled. The contact injured her neck, back, and several other places, and she received medical attention. A police report was made. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that her vehicle had previously been repaired under an unknown airbag recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11540347August 23, 2023
UNKNOWN OR OTHER
Water getting in cab
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540415August 23, 2023
SERVICE BRAKES
Constant “service trailer brakes” warning on dash. I Haven’t done anything to cause it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540416August 23, 2023
ELECTRICAL SYSTEM, POWER TRAIN
TCM. Yes it's available for inspection. It failed causing my truck to just lock the brakes up in the middle of the road almost causing an accident. Causing driver and passenger risk of Injury
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540042August 22, 2023
FUEL SYSTEM, GASOLINE
The contact's son owns a 2014 GMC Sierra 1500. The contact stated that when his son parked and exited the vehicle, there was an abnormal gasoline odor coming from the rear of the vehicle nearby the location of the fuel tank. The contact stated that he had checked the vehicle and noticed that fuel was leaking from the top of the fuel tank. The contact saw a streak of gasoline on the side of the fuel tank. The contact stated no warning light was illuminated. The contact had taken the vehicle to an independent mechanic who diagnosed and determined that the fuel pump was leaking and needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The contact researched online and related the failure to Technical Service Bulletin Number: 14858 - High Pressure Fuel Pump Possible Leak (Fuel System, Gasoline). The failure mileage was 60,563.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540147August 22, 2023
ELECTRICAL SYSTEM
The contact owns a 2023 GMC Sierra 1500. The contact stated while driving 25 MPH, the vehicle lost motive power and decelerated while the accelerator pedal was being depressed. The check engine warning light was illuminated. The dealer diagnosed the vehicle and determined that a software update was needed. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 7,780.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540210August 22, 2023
ELECTRICAL SYSTEM, SERVICE BRAKES
Today August 22, 2023 at 2:30pm, just about to leave work home when I received a message on my dash board telling/showing me "Service Trailer Brake System". And that sign kept coming on every second all the way home from work, couldn't heard nothing else that us going on inside the car like my phone, radio, turn sign, etc..
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11539921August 21, 2023
STRUCTURE:BODY
The frame on my 2014 GMC Sierra pickup is rusted through on the driver’s side cab area. A truck frame should last longer than 9 years old. Is GM going to do anything about this problem?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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