GMC Sierra Complaints

15,732 consumer complaints on file.

#11640126February 1, 2025
ENGINE
lifters in the left and right side snapped into 3 pieces. Caused engine failure happened 2 different times. All before 50,000 miles. The first time was before 30,000 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639785January 31, 2025
ENGINE
Engine locked up and needs to be replaced out of warranty at 25k miles!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639787January 31, 2025
ENGINE
My 2018 Silverado 1500 has had 3 cylinder 4 misfires over a 9 month period that had to be repaired after warranty. This caused the repair/replacement of the lifters. I have had this happen for a forth time this year January 7 2025 with the same code of "cylinder 4 misfire". That means four of the same issues in one year. I can be driving along smoothly, then suddenly from one light to the next, the check engine light comes on with the misfire to cylinder 4 coming on. It was shared with me the AFM can cause this to happen. On the third time of misfire, I saw a little smoke, then once it was repaired with lifters replaced, no smoke and back to running smoothly. This time the intake cam lobe was scored which voided the warranty. I am now at a crossroad as to what to do now, and have parked the truck for now. It is my understanding the 5.3L engine was considered a solid engine until the AFM was installed. Did I mention this is the first "truck" I have ever owned? I have had a Chevrolet vehicle since I was able to drive, and have never had engine problems of this magnitude. My concern now is that this could cause my engine to lock up while I'm driving around and cause a possible accident. I depend on this truck as my mode of transportation, but now I have to make a decision that impacts me greatly as a senior citizen on a fixed income.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639797January 31, 2025
ENGINE
was driving on the highway at 55mph and the engine just quit running and thankfully no one was near me and I was able to pull over on the side of the road. All the dash lights stayed on but the truck would not restart,code on dash board said "Conditions not correct for shift" Had it towed to the dealer and they put a new battery in it, but it broke down again on the way home same as before. Now they are telling me I need a brand new engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639825January 31, 2025
POWER TRAIN
On Wednesday December 4th 2024 at 5:45 am on my drive to work my engine shut down, truck electronically shifted into neutral, and notified me to restart my engine. After I rolled to a stop in a safe area off the main road i tried to restart my engine, with no success. I then called my local dealership to inform them of the issue, and they instructed me to call OnStar and have them setup a tow to their facility. Once the vehicle was delivered it took the dealership 24 hours to determine that the engine had locked up and a replacement was needed. It has now been almost 2 months with no update on my truck or the replacement engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639897January 31, 2025
ENGINE
Engine failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639900January 31, 2025
POWER TRAIN
Engine - catastrophic failure 6.2 liter V8. Vehicle is currently at dealer awaiting full engine replacement. Failure left me stranded waiting for tow to dealer. Problem has been diagnosed as rod and main bearing failure, engine replacement imminent. Vehicle was running perfectly fine all day. Went to take my daughter to basketball practice in evening initially everything was fine, then we heard squeeking, turned around to bring right back home, lost power in intersection, truck stalled. Got restarted check engine light came on and limp mode reduced power activated. Truck towed to dealer and oil pan was pulled. Rob and main bearings have scattered metal throughout the engine. Truck confirmed to need full replacement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639915January 31, 2025
ENGINE
The failure was a lifter collapsed in my vehicle's motor. I had reduced power and major shuttering due to the issue. If I had been towing a load I would have possibly become a hazard by not maintaining a speed that would have been able to keep up with traffic flow. Also if I had been in an congested traffic area I would have been slower to clear or have major breakdown causing increased backups. It was confirmed by a local shop. There were no warning lights at the time of incident, nor leading up to this incident. Fortunately no accidents or disruptions happened and I had to be towed in to a repair shop.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639929January 31, 2025
POWER TRAIN
The contact owns a 2021 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train); however, the contact believed that the remedy offered would cripple the vehicle and interfere with his work. The contact works in Alaska and the remedy involved the transmission being limited to fifth gear, preventing the possibility of a wheel lock up condition, which could occur while downshifting from eighth gear. The manufacturer was made aware of the issue and advised the contact to find a dealer that could repair the transmission. The contact had not experienced a failure. Parts distribution disconnect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640012January 31, 2025
EXTERIOR LIGHTING
Was driving my 2023 GMC Sierra in a mild snowstorm after leaving the grocery store and heading home. It was about 10 minutes after dark and it has just started snowing. I was only 5 minutes down the road and the visibility in front of me suddenly & drastically declined. I could barely see the road. I could barely make out anywhere to turn out to. Once pulled over, I walked to the front of the truck and the headlights AND fog lights were completely covered in snow. I wiped them off with my hand and could then see great again. Well, 5ish minutes down the road again and they were back to completely covered. Twice I wasn't able to pull over, due to the steep terrain and no shoulder so, I had to push on, traveling at no more than 4MPH. And getting out during one of the 7 cleanings, I almost slipped and fell. It took me 48 minutes to get home. A trip that usually takes 25! The HID headlights on my other truck don't have this problem. And the aftermarket LED headlights on another vehicle of mine have built in heating elements. You would think the OEM would've thought of this option but, they don't offer it! If it wasn't for my 20+ years experience of driving in the snow, I would've been left stranded or wrecked/totalled the truck due to this major safety oversight!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640020January 31, 2025
STRUCTURE:BODY
While driving on the highway my front grill upper molding flew off and hit my hood and windshield. It ended up landing in the middle of the highway and other vehicles running it over.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639548January 30, 2025
ENGINE, POWER TRAIN
Engine Coolant Low error constantly appears. GM Service provider states that engine coolant level is fine, but sensor may be defective.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639553January 30, 2025
ENGINE
https://gmauthority.com/blog/2025/01/nhtsa-opens-investigation-regarding-gm-6-2l-v8-engine-failures/ I experienced an engine failure, similar to the ones that are currently being investigated by NHTSA on my 2022 GMC Sierra Denali. My safety was put at risk through the engine failure at high speeds on the highway. The engine failed and while driving through mountainous terrain, the vehicle automatically launched into neutral and I had to dodge several passing vehicles to get to a safe place on the side of interstate 40 in western NC. The problem was confirmed by the original dealership that I purchased the vehicle from. Randy Marion GMC in Huntersville NC. There were no warning lamps, messages or other symptoms prior to the incident. It was sudden and without warning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639603January 30, 2025
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM, VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW
The contact owns a 2018 GMC Sierra 1500. The contact stated while driving approximately 35 MPH with the rear window defroster activated, there was a burning rubber odor inside the cabin of the vehicle and there was smoke coming from the rear window area. While inspecting the rear window the contact discovered that the rear window connector cover had melted, and the wire connections were a burning amber color, but no flames were present. After disconnecting the electrical connections, approximately 30 seconds later the rear glass panel on the passenger side suddenly shattered. No injuries were reported. The contact’s young daughter was seated in the rear during the failure. The vehicle was taken to the local dealer, but the cause of the failure was not yet determined. The manufacturer was not notified of the failure. The failure mileage was 60,952.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639604January 30, 2025
ELECTRICAL SYSTEM
something shorted on or behind the dash on the drivers side and caught fire
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11639658January 30, 2025
ENGINE
On Jan 7, 2024, we went to Walmart to shop (DeRidder, LA). The truck was running normal. All gauges were normal and the reason I can say this is because our truck broke down in 2023, so we have a habit of checking them when we start the truck before driving and during driving periodically. When leaving Walmart we were at the red light and the truck just stopped. A message came on and said to shift into Neutral, which we did. The truck then died and would not stop. Pushed it into the parking lot and had it towed to Billy Navarre Chevrolet, Lake Charles, LA. After they looked at the truck on Jan 9, they said the engine was seized and we needed a new one. They couldn't say why. They said that would be figured out when the old motor was shipped back. After putting in the new motor, the POC at the dealership called and said we needed a new water pump that the one he took off was bad. They insinuated that was the cause of the engine seizing. However this wasn't determined until they went to put the old one on. If the water pump failed, we believe it should have started showing engine overheat and there was no such thing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639719January 30, 2025
ELECTRICAL SYSTEM, POWER TRAIN
The contact owns a 2022 GMC Sierra 1500. The contact stated while driving at approximately 55 MPH, the infotainment system, and the rearview camera became inoperative, and the vehicle stalled. The tailgate unintendedly opened, and the steering and lane control assist feature independently activated causing the vehicle to steer in the other lanes. The contact stated while the vehicle was in reverse, the vehicle unexpectedly shifted to park. No warning light was illuminated; however, the "Check Suspension" message was displayed on the instrument panel, and lights on the instrument panel were intermittently darkened. The headlights were intermittently illuminated independently. The failures had occurred on several occasions. The vehicle was taken to a dealer to be diagnosed; however, the results were unknown. The vehicle was repaired; however, the failure persisted. The manufacturer was not notified of the failure. The failure mileage was approximately 15,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639727January 30, 2025
ENGINE
Engine seized it won’t crank we swapped the alternator 2 times the battery once the and the starter once we also swapped the battery chip 3 times and it would turn off out of no where. We thought it was because of the miles but it was working fine. And took care of it nicely. We took it to a dealership and they told us that it needed a new motor because it was seized. But before that it would start up and turn off after 15 minutes. We took it somewhere else in a tow truck and they told us that the engine was seized.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639736January 30, 2025
POWER TRAIN
The engine locked up with no warning I called the dealership and they said it was out of warranty as it has 77000 miles. upon further investigation I found that the front main bearing on the engine had gone bad and caused the engine to lock up. GMC refused to accept any responsibility for the failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639746January 30, 2025
POWER TRAIN
While under light acceleration, the vehicle violently down shifts causing the rear wheels to briefly lock up around 45mph. The vehicle traction control activates on dry road way but no check engine light is displayed. The dealership claims the valve body in the transmission is to blame and has a three month back order due to several vehicles with the same failure. The safety issue could be when the rear wheels breifly lock up during wet or slippery conditions and could cause the vehicle to lose control causing a crash.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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