GMC Sierra Complaints

15,732 consumer complaints on file.

#11626142November 19, 2024
SERVICE BRAKES
The antilock braking system is not functioning properly. The sensor for the anti-lock brake control pump module is defective
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625878November 18, 2024
STRUCTURE:BODY
UNKNOWN. While I was driving down the interstate going 75MPH the top part of my grill flew off cracking my wondshield. I pulled over and pick it up and all the plastic welded factory clips broke off. This is a seriously dangerous issue that should be recalled and covered by GMC
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625933November 18, 2024
POWER TRAIN
My complaint number 11461471 , I made this complaint on 04/20/2022 about my 2017 GMC Sierra 1500.my truck is have the same problems that the GMC trucks recalled. As I stated when I filed my complaint with NHTSA and GMC. I carried my truck back to the dealership 7 times and complained about the problem. Once my warranty expired no one want to talk about the problem with the transmission. I started having problems in September 2017 my truck had 6,949 miles. I have paperwork every time I carried it to gmc dealership. NHTSA need to look at the problem with the 2017 Sierra too.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11626003November 18, 2024
STRUCTURE:BODY
My 2023 Sierra has an issue with the tailgate opening at any given time while in park. The dealer denied such issue until I noted a GM recall on the tailgate switch becoming contaminated with water. My issue is the amount of items, such as tools, half full plastic gas cans, shovel, etc, that I have lost out the rear of my vehicle endangering other motorists. My tailgate has become damaged, mostly paint damage, however I am more concerned about the public's safety and other GM trucks with the same growing issue. It was not until my dead battery (in a 2023 vehicle) caused me to discover the tailgate issue was connected to the short in the release switch. I also have a tonneau cover so I cannot see the tailgate and the truck gives no indication of the tailgate being down. This problem began within a few months after purchase.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11626023November 18, 2024
SERVICE BRAKES
Intermittently with slow driving such as parking maneuvers or creeping slow traffic at stop lights the brake pedal becomes very soft and depresses much more than normal and the brake action is decreased. Sometimes with this soft pedal it sounds like ABS is engaging. Pumping pedal sometimes restores brake performance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11626032November 18, 2024
POWER TRAIN
I have a complaint about the recall response from both nasal and gm. I feel the cure is substandard. Why not just put new transmission control modules in to correct this problem. Very disappointed
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11626068November 18, 2024
ELECTRICAL SYSTEM
I was driving my truck with my family in the car. I turned on the rear window defrost and a few minutes later the rear window blew out and made a loud bang noise. Also a burning smell took over the rear of vehicle. I did some research on line and saw this has happened to several owners of this model year pick up. It’s 100% a safety hazard. Not sure what to do since I don’t see a recall for this common problem. Thank you.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625737November 17, 2024
ELECTRICAL SYSTEM, POWER TRAIN, STRUCTURE:BODY
Paint bubbling on roof. When turning on key, the radio makes a loud buzzing sound. On 11/16/2024, when leaving a traffic light, the truck began surging and shuddering. Tachometer was revving up and down like the transmission was slipping with loss of power while trying to take off and accelerate. While attempting to return home, loud booming noise was coming in from under floorboard. I was unsure if I would make it home before the transmission totally failed. People were passing around me because I was unable to acceleration fast enough because of the shuddering and loss of power. No previous signs of any powertrain issues or failures before. It happened for the 1st time today, and my truck is no longer safe to drive. GM has known about this transmission issue for years on several different models and has failed to broadly rectify the mechanical problem on all affected vehicles. Instead, GM has allowed the vehicle owners to continue to drive a vehicle with a known problem while it waited for a failure. This put me and my family at risk because I am driving around in a vehicle with a known transmission problem not knowing when it would fail or where I could be located when it failed. GM needs to pay for all repairs on all vehicles with this transmission failure because GM has known about this problem for years before someone gets hurt or killed. GM knew about the shuddering problem from the beginning, and they fixed the problem by tuning the transmission which then caused the total transmission failures over time which vehicles owners are not dealing with. Metal shavings are being located in the pan when inspected. GM should be held responsible for the cost of these transmission repairs. I would have never purchased the GMC Sierra 1500 if I have known GM was installing defective transmissions in new vehicles. That is shady, reckless, and unsafe. GM, pay to fix these problems.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625692November 16, 2024
POWER TRAIN
Truck would slip out of gear while in DRIVE in very dangerous situations. Tuck would suddenly jerk forward when in Drive and Stopped at a Stop Sign or light. No warning light or codes. Transmission Specialist evaluated and determined that Transmission was about to have a critical failure. The 6L80 transmission was replaced with 109,933 original miles on it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625462November 15, 2024
POWER TRAIN
The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle suddenly shifted into a higher or a lower gear, the contact stated that when this occurs the vehicle will aggressively jerk into either the higher or lower gear, and the vehicle experiences reduced acceleration to approximately 30 MPH. The check engine warning light was illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed. The contact was informed that there was a leak in a backflow valve that was responsible for the failure experienced. The contact stated that the failure had occurred five times was provided different causes for the failure, even though the contact stated that the failure was the same failure. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 30,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625198November 14, 2024
STRUCTURE:BODY
I was driving on the highway at approximately 65mph and the upper top moulding suddenly broke off, flew across my truck hitting my windshield, before landing in traffic. I had not had any previous damage to my truck prior to this incident. I am concerned this is a widespread issue that is creating an undue burden on the owners and potentially create unsafe conditions to nearby vehicles/pedestrians. I took my truck to the dealership as I have a warranty, but they refused to cover the cost of replacement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625218November 14, 2024
ENGINE
The contact's son owns a 2020 GMC Sierra 1500. The contact stated while driving at various speeds, the vehicle shut off without warning. The contact stated that the vehicle was restarted and resumed normal operation moments after the failure. The contact stated that the failure recently started occurring more frequently. The manufacturer was notified of the failure and the contact was provided a case number. The contact was referred to the NHTSA Hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 40,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625297November 14, 2024
ELECTRICAL SYSTEM, ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
Intermittent loss of trailer brake function. While traveling and towing a RV trailer with electric brakes, receive a dashboard alert that trailer brakes have been disconnected. This has occurred since vehicle was new. Trailer brake system has been inspected and trailer is not the issue. Took truck to GMC dealer. They are well aware of common issue with GMC owners. GMC issued a safety bulletin 6+ months ago to dealers to replace the integrated trailer brake controller (RPO code JL1). Per reports that has not solved the issue. My truck did not fall into that safety bulletin. Customer Satisfaction Program number N232414840 says, with the brake issues caused by a potential fault in which voltage feedback occurs. This is a DANGEROUS SAFETY ISSUE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625329November 14, 2024
POWER TRAIN, ENGINE
I was driving on the interstate and had just exited to refuel. As I was re-entering traffic, I accelerated to merge, and suddenly, as I was about to pull in, I felt and heard a massive metallic crash, like the entire transmission had dropped. The engine sounded abnormal, and immediately, the dashboard flashed a warning: 'Engine Power is Reduced.' The check engine light came on, and I got messages saying the transmission needed service and to schedule an appointment. I called my dealership and took it in as soon as possible. After they held the truck for a while, the service manager told me a critical part was on indefinite backorder with no fulfillment date. He handed back my keys, saying they'd reach out when it arrived. I asked if it was safe to drive, and he said yes. Later, driving from Illinois to California, my truck malfunctioned again. This time, in heavy, 12-lane traffic, the same loud crash threw me forward, almost slamming my face into the steering wheel. My wrists and shoulders hurt from bracing myself, and my right shoulder still aches. Again, I got the 'Engine Power Reduced' warning and transmission service notice. Each time, this has put me and those around me in severe danger.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11625363November 14, 2024
ELECTRICAL SYSTEM
When accelerating and shifting into drive, the vehicle is experiencing a lag when moving forward. The rear wheels are not latching into the designated gear. When vehicle comes to a complete stop, it will not accelerate and does not want to move. The problem has been reported and there are multiple recalls on similar vehicles of the same make and model. There were no warning symbols or notifications generated at the time of inspection.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625368November 14, 2024
UNKNOWN OR OTHER
The volume of my stereo went to 100% max volume, the only way to turn it down was to continue to turn the dial as it continued to go up in volume. Once I was able to get out of traffic and pull over I turned off my vehicle and opened my door to turn it off but when I restarted it happened again. I tried restarting again and waiting longer between and it went back to normal volume control. This has happened twice since, my hands aren’t on any controls when it happens.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11624929November 13, 2024
POWER TRAIN
The contact owns a 2021 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the rear of the vehicle was shuddering and shaking. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact stated that over time the failure became more persistent. The contact was concerned because two small children were seated in the rear of the vehicle daily. The manufacturer was made aware of the failure but provided no assistance. The contact referenced NHTSA Campaign Number: 24V797000 (Power Train); however, the contact was informed that the VIN was not included in the recall. The failure mileage was approximately 61,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11624825November 12, 2024
STRUCTURE:BODY
Roof rust at the windshield on a perfect condition vehicle. Paint is excellent on rest of vehicle. No damage or accidents and properly maintained. Premature rust is now visible at the roof of the of the vehicle. Soon could rot and allow water into cab of vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11624856November 12, 2024
ELECTRICAL SYSTEM
The electronic tailgate switch is malfunctioning and opening on own. We brought in and paid 2 times to have repaired and now the third time has happened. It’s appears this model is recalled in Canada but not US. Why is that when it’s the same parts used and the HD models have also been recalled. Why is our truck not recalled for this?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11624661November 12, 2024
UNKNOWN OR OTHER
Rusted out frame. 130k miles and well cared for. I don't think a 10 year old vehicle should have a rust hole in the frame.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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