GMC Sierra Complaints

15,732 consumer complaints on file.

#11652824April 4, 2025
ENGINE
The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving at approximately 60 MPH, the RPM decreased while the accelerator pedal was depressed, and the vehicle lost motive power. No warning light was illuminated. The contact was able to pull over to the shoulder of the road. The vehicle was towed to the residence. The vehicle was then towed to a local independent mechanic, where it was diagnosed with a frozen crankshaft and engine seizure. The vehicle was towed to a local dealer, where it was diagnosed and determined that the engine had failed due to metal shavings inside the engine. The dealer determined that the engine needed to be replaced. No further information was available. The manufacturer was made aware of the failure. The failure mileage was approximately 64,900.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652840April 4, 2025
ENGINE
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving 50 MPH, the engine seized. The contact was able to cost the vehicle to the side of the road. There were no warning lights illuminated. The vehicle failed to restart and was towed to the local dealer, where it was diagnosed and determined that the engine needed to be replaced. The dealer informed the contact that the parts were on backorder. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was 40,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652846April 4, 2025
POWER TRAIN
The system that is not working properly is the transmission. It is available for inspection upon request. The safety of the vehicle, and myself, was put at risk because the transmission (once warmed up / at least 30-60 minutes of driving takes place) downshifts hard, making a clunking noise, and has at worst given the vehicle a rough nudge/jolt forward upon downshifting particularly from 2nd to 1st gear (it is a 10 speed transmission). This issue, when it occurs, will require me (the driver) to apply extra force to the brake pedal due to the rough downshift / jolt upon shift. The issue is exacerbated when quickly stopping the vehicle causing the transmission to downshift more rapidly. The vehicle's transmission flaws, of which this happens to be one of them, were being looked into at a certified repair facility (dealership). After the vehicle was in their possession 3 days, they informed me that they could not replicated or reproduce the issue. I informed and reminded the following: (1) the vehicle has to be warm and operated for I would state at least 30-60 minutes of driving before the issue arises (2) I have recorded videos of the problematic sounds of the transmission. (3) I am willing to go for a test drive to try to replicate the issue with dealership staff, but the issue is infrequent and the vehicle must be warmed-up and/or driven more than the typical "test drive" for the issue to be observed. The vehicle component has been inspected by a certified repair facility (dealership), but not directly by a manufacturer's direct representative, police, insurance representatives, or others. The transmission is also problematic in another way (rattling at low rpm's during upshift), but pertaining to safety the downshift is most concerning as described above. There were/are no warning lamps or messages. The symptoms of the problem pertaining to the transmission began occurring around 11,800-12,000 miles in my estimation.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652869April 4, 2025
LATCHES/LOCKS/LINKAGES:TRUNK LID:LATCH, ELECTRICAL SYSTEM, POWER TRAIN
The contact owns a 2021 GMC Sierra 1500. The contact stated while the vehicle was parked, the contact attempted to turn off the vehicle; however, the vehicle remained running. A message was displayed to shift to park(P). The contact stated that the lights, radio, and other functions remained operational. On another occasion, the vehicle jerked, and the steering was difficult to turn. The dealer was contacted; however, the vehicle had not been taken to be diagnosed or repaired. The contact also stated that the trunk failed to fully close. The message that the trunk was open was displayed. The contact attempted to close the trunk and message on the displayed was turned off; however, the trunk remained slightly open. The vehicle was not taken to be diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 63,315.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652877April 4, 2025
POWER TRAIN
Transmission will slam hard then truck goes into low power mode and doesn’t shift.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652482April 3, 2025
ENGINE
The contact owns a 2022 GMC Sierra 1500. The contact stated that while company driver was driving the vehicle at an undisclosed speed, the driver noticed an abnormal knocking sound coming from the engine. The driver turned the vehicle off. The vehicle was restarted; however, the failure reoccurred. The vehicle was taken to the dealer where it was diagnosed with a lower engine knock. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact was informed that the parts to repair the vehicle were on backorder. The contact stated the vehicle had been at the dealer since February 25, 2025, awaiting the repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 64,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652500April 3, 2025
ENGINE
I was driving on the interstate when my vehicle’s display indicated that I needed to press start and that is when I noticed the engine was not running. I had to quickly pull over moving three car lanes all while coasting and I came to a stop. I tried multiple times to restart but the engine would not restart. I still had electrical power and turned on my hazard lights and called for a tow truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652530April 3, 2025
STRUCTURE
The contact owns a 2023 GMC Sierra 2500. The contact stated that his son informed him that there was a puddle of water in the rear seat. The vehicle was taken to the dealer, where it was diagnosed that the upper track for the rear sliding window was fractured on both sides, causing water to leak inside the vehicle. The dealer determined that the rear window needed to be replaced; however, the part was on backorder. The vehicle was not repaired. The manufacturer was notified of the failure and case was filed. The failure mileage was approximately 21,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652605April 3, 2025
ELECTRICAL SYSTEM, STEERING, FORWARD COLLISION AVOIDANCE: WARNINGS
While driving my truck and making low speed turns the dashboard (including center console) cuts off, along with my power steering. The truck has also shut off completely making u-turns causing me to almost crash. This also happened while driving around 60mph on the freeway, the entire dashboard went out, loss of steering, and truck shut off, almost causing an accident. When it does happen, it will cut out in 1 second intervals and steering will work again for 2 seconds then cut out again for 1 second, this causing me to stall. There are no check engine lights, or service lights that stay on. However, I will get a message stating: You are memory setting 3 in the system (wording may be different). In some cases the stabilitrak light will come on, the park assist warning stating it shut off comes on dash, and trailer break. I have a full service AUL warranty and had vehicle checked at certified dealership and no codes were recorded. I replaced battery and the problem is still happening. This is unsafe and should be part of the previous recall as my symptoms are the same exact symptoms as the other 2018 recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652664April 3, 2025
ENGINE
Experienced catastrophic engine failure while driving down the highway. Was able to coast to a turning lane in an intersection then once I came to a stop my truck proceeded to go into park and was not able to be moved. Engine would no longer start/turn over and vechile remained in park without begin able to go into neutral so had to wait for roll back tow truck to load my truck while sitting in the middle of a busy road with no way to move.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652682April 3, 2025
ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM
P0521 has been addressed/replaced almost nine (9) times. “Low Oil Pressure-Stop Engine” is another one that is not completely functional. The truck is using oil but we cant find evidence of leakage. Services performed at dealership or certified shop. Troubleshooting was performed, Im told. I cant vouch for the quality of the workmanship. This should not be an issue at this mileage 100,100 ohe hundred thousand miles and oil components going bad is not good. GMC has sold me a truck that needs a new engine component. Please help. Thanks [XXX] 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
#11652202April 2, 2025
POWER TRAIN
P1098 coolant Control Valve malfunction and out of stock
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652227April 2, 2025
ENGINE
The contact owns a 2024 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. No warning light was illuminated. The vehicle was towed to a local dealer, where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was repaired at the contact's expense. The manufacturer was made aware of the failure. The failure mileage was approximately 6,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652244April 2, 2025
POWER TRAIN
The contact owns a 2021 GMC Sierra 1500. The contact stated while driving at 50 MPH, the transmission independently downshifted and the rear wheels seized. The contact stated that the rear wheels skidded. In addition, the contact noticed an abnormal clunking sound. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure. The contact stated that the failure occurred immediately after the recall repair under NHTSA Campaign Number: 24V797000 (Power Train) was performed by the dealer. The manufacturer was not made aware of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652273April 2, 2025
ENGINE
At cold start-up, engine (6.2) makes a metal-to-metal grinding sound for 60-90 seconds. After warm-up, a steady tick on the right side of the engine while running. I contacted GM and they said, " this was normal at start up". however, with me being a mechanical engineer, all of my school and working experience tells me anything grinding metal to metal is not good.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652351April 2, 2025
ENGINE, ELECTRICAL SYSTEM
Driving on the highway, moving to pass another vehicle, engine shut off forcing me to coast to the shoulder. No warnings and didn't notice loss of power until I saw that the vehicle had been shifted into neutral. Had 2 kids in the truck and could not get GMC service department on the phone, had to walk up an onramp in order to get my kids home with me in an Uber. This is a 2024 6.2L GMC with only 13,000 miles. Service department took over a week to check initial issues, said it was a fuse block which they replaced. Did not resolve the issue, then it was the starter, which did not resolve the issue, after 2 weeks they told me the engine was locked up due to internal failure and it will be several months before the truck is operable. GM has stated they the issue needs to occur 4 times before a buyback would be considered.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651943April 1, 2025
ENGINE
Engine Failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651946April 1, 2025
ENGINE
Engine seized.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651948April 1, 2025
POWER TRAIN
Truck died and had to have it towed to the dealership. They called me and told me they engine had seized from from bearing failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652046April 1, 2025
ENGINE
The contact owns a 2017 GMC Sierra 1500. The contact stated that on four separate occasions while driving at highway speeds, the vehicle shut off with the check engine warning light illuminated. The contact stated that after each failure, the vehicle was towed to a dealer and the contact was informed each time that the failure was related to the active fuel management system. The manufacturer was notified of the failure after the first failure and the contact was informed that the repair would be covered under warranty. The contact stated that each time that the vehicle was towed to a dealer, the lifters and pushrods were replaced under warranty; however, the failure returned almost a month after each repair. After the most recent failure, the dealer pushed the manufacturer to replace the engine. The vehicle was repaired; however, the contact expressed a fear of driving the vehicle due to the repeated failures. The failure mileage was approximately 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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