GMC Sierra Complaints

15,732 consumer complaints on file.

#11729731April 7, 2026
ELECTRICAL SYSTEM
The contact owns a 2022 GMC Sierra 1500. The contact stated that the vehicle had experienced a failure with the front cameras and various control modules and sensors, requiring that all the parts be replaced. The contact stated that the parts had been replaced several times, but the vehicle was not repaired. The vehicle was taken to a dealer for repairs, but the failures persisted. The manufacturer was not notified of the failure. The failure mileage was 73,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729742April 7, 2026
STEERING, POWER TRAIN, UNKNOWN OR OTHER
Please Append these work orders to this Complaint number and VIN COMPLAINT: NUMBER XXX VIN: [XXX] Three Repair Orders from Beck & Masten GMC South attached. Thank you!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11729751April 7, 2026
ENGINE
The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle went into LIMP Mode, and several unknown warning lights were illuminated. The vehicle lost automotive power. The vehicle was taken to the dealer to be diagnosed. There was a knock coming from the engine, there was fuel injector failure, a heated oxygen sensor control module Bank 1 failure, and fuel system failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 134,648.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729756April 7, 2026
ENGINE, STEERING, POWER TRAIN
This is separate for VIN [XXX] I had to change dealerships because Beck & Masten South / GMC would NOT provide me with a loaner after being told I was on the list and I was next in line. I waited a month and drove to them and spoke with the girl who oversaw loaners. I explained I had severe safety issues such as front-end wobble which is related to transmission issues. And the oil consumption issue and oil light. Once again, I was re-assured the loaner program was indeed still active and I would be put on priority. Again to no avail I had wasted too much time with Beck & Masten. After months of this I found out I did not have to take it to the dealer I bought it from. So, I took it to Monument Chevrolet. I explained my concerns related to the front-end wobble which was very intermittent. And the oil consumption issue which I was very concerned with due to the year model and mileage of the truck. Also, the 75,000.00 price tag was really has me extremely upset... Monument Chevrolet treated me well. I had actually brought it in and called about the steering which was greatly affected by the severe front end wobble more than one time. I was told at first the oil consumption was pretty normal. Until I told them how much I had to add between changes. I have attached two work orders to this complaint. These work orders show what was done at 18017 miles and 18323 miles. The later work order was when the PICO test was done. Also, an oil consumption test was started once I picked the truck up. After I had driven it for 2077 miles and was bringing the vehicle back to Monument Chevrolet, as instructed for the oil consumption results, when a loud squeeling, then hard knock, power loss and I pulled over. I called Monument and was instructed if I could get it to start and bring it. I drove it to them while knocking and rough running. It has been in the shop for over 2 months for an engine replacement. 2077 miles after recall work! REFER TO: COMPLAINT XXX INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOI
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729763April 7, 2026
ENGINE
While accelerating from a stop, the oil pressure warning illuminated. The driver immediately pulled over within approximately 0.15 miles and shut the engine off. Oil was actively leaking from the vehicle. The truck was towed and diagnosed with oil cooler line separation at the crimp fitting, resulting in rapid oil loss and catastrophic engine failure. Sudden oil loss while driving creates a safety hazard. This failure appears consistent with known issues involving oil cooler line assemblies on similar vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729792April 7, 2026
ENGINE
Complete engine failure at 1838 miles. Need complete engine replacement. Estimated time unknown for replacement parts.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729816April 7, 2026
STRUCTURE:BODY
I was just driving and the top chrome part of the grill flew off the truck
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729823April 7, 2026
STRUCTURE:BODY
Top grill assembly blew off in high winds scratching the windshield and cracking part of it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729332April 6, 2026
ENGINE
I was driving my vehicle on the highway doing normal highway speed, when I began to hear an odd noise coming from the engine area. I slowed down and moved into the slow lane at which time the noise became worse. The vehicle then lost power and I wasn’t able to get the vehicle to do over 40mph. I was able to exit the highway and limp my vehicle home. I had the vehicle towed to a GMC dealership the following morning. After about ten days, I was contacted by the dealer and was advised that I had an engine failure and that my vehicle required a new engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729346April 6, 2026
ENGINE
Had recently turned 40,000 miles and was driving down a highway; ,lost all power had to get towed to dealership. Was told engine went out, and had to get another. Would be weeks, still no engine. Was towed 3/2/2026. Common problem finding out, was a 90k vehicle unacceptable!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729411April 6, 2026
UNKNOWN OR OTHER
While driving at high way speeds the radio volume went to maximum high. I was unable to turn the volume down by any inputs. Mute was inoperative. Volume controls were overridden by the glitch. My hearing has been affected as well as the infant that was in the back seat. This is a serious condition that has now happened 4 times. No assistance from General Motors. My ears have been ringing for 3 straight days now. This issue had happened since I bought the truck new in 2022.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729454April 6, 2026
STRUCTURE:BODY
The plastic piece above the front grill detached and flew off the truck. I’m not sure the name of the part.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729458April 6, 2026
AIR BAGS
The contact is an attorney who was representing a client who owns a 2010 GMC Sierra 1500. The contact stated that while the vehicle was being driven at an intersection, the front end of the vehicle crashed into the side of another vehicle, where it came to a stop. The contact stated that the passenger side dash air bag ruptured, related to a Takata Inflator. The driver's side air bag deployed as well. The vehicle speed was undisclosed. The vehicle was towed to an impound lot. A police report was filed. Both the driver and passenger were injured in the accident. The injuries sustained were lacerations to the passenger's leg and hearing trauma to both the driver and passenger. It was unknown if the occupants of the other vehicle were injured. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unavailable.
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#11729531April 6, 2026
POWER TRAIN
The transmission has a shudder at various speeds.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729552April 6, 2026
ELECTRICAL SYSTEM
Infotainment screen is flashing different colors and doesn’t work anymore.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729252April 5, 2026
ENGINE, POWER TRAIN, FUEL/PROPULSION SYSTEM
Ticking at cold start. 4/02/26 on way home from work. Truck loses acceleration while driving. Bug jumps then display says low power mode. Truck will start but will not move forward or in reverse. RPMs increase but no propulsion. Recall was performed 11/17/25 and passed inspection through Romain GMC Evansville, IN. Called Romain on 4/02/26 and was told someone would return my call 4/03/26. Still waiting. Plan to call Kate Faupal dealership in Henderson,KY on 4/06/26
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729257April 5, 2026
ENGINE
Driving approximately 30mph, the engine shut down. Vehicle shifted into neutral until stopped and shifted to park. Unable to place in neutral to pull off the road. Check engine stated transmission needed service. Dealership states seized engine. Engines are on back order. Vehicle has 2980 miles on the odometer. I'm active duty Navy and have a permanent change of station this summer and no vehicle to move in and I also haven't gotten a rental.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729261April 5, 2026
POWER TRAIN, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
On March 13, 2026 I purchased a 2023 GMC Sierra AT4 Pickup with 3.0 Diesel Engine. While driving on a state highway in a 35 mph zone I started to accelerate as the speed zone changed. The truck suddenly had the rear wheel lock up for a brief time about quarter to half second then the truck proceeded on. This happened as the transmission was downshifting. Then on or about March 24, 2026 I was using the same truck and towing a 4,000 pound enclosed trailer. This trailer was hooked up within all recommended hookup requirements. In a 225 mile trip I experienced the same rear wheel lock up happen 4 random times during the trip. Once this happened at 65 miles and hour had there been snow or ice on the highway the truck may have crashed. This lock up happened while using the truck in tow haul mode. Two times it happened while the truck was being towed with cruise control active and two times it happened while not using cruise control. Truck was brought to Authorized GM Dealer and inspected and truck had no stored codes from transmission related issues. Dealer blamed this for using cruise while towing. I informed dealer this happened while not using cruise as well. Was told to turn off adaptive cruise when towing. I was unable to find anything in the GMC Manual regarding not using cruise while towing. This appears to be an issue with the valve body in the transmission and customer explained this to the dealer but they denied this claim. When these quick moment lockups happen no codes or engine lights show everything on dash appears normal. Customer is bringing truck to another GM Dealer to be tested and examined.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729289April 5, 2026
ENGINE
6.2 lifter failure at 44500 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729317April 5, 2026
POWER TRAIN, ENGINE
The motor on my 2026 GMC Sierra stalled 2 weeks ago with a p0016(crankshaft position sensor issue). Was able to clear code and limp home. Vehicle did stall on a busy road and stop abruptly. Scheduled service and was advised to drive it in. Was experiencing irregular idle when warmed up, and a slight hesitation in the pedal. Service advisor started the vehicle and claimed no codes, and everything appear OK. Later in the afternoon the service advisor called to inform me that the vehicle had a siezed engine and had siezed during a test drive on the highway. Currently waiting on warranty information, and engine replacement information but i've been informed it will require a whole new engine. This is the same 6.2l L87 V8 that has been in near constant recalls from GMC over the last 6 years.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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