GMC Sierra Complaints

15,732 consumer complaints on file.

#11703277December 5, 2025
TIRES:TREAD/BELT, TIRES
I had taken our GMC Sierra 2500 with LT275/R20 Goodyear Wrangler tires into Henderson Chevrolet for maintenance and to have the tires checked. The technician stated that the front tires were showing tread separation. I was shocked because the tires only had around 20,000 miles. The truck is not used for towing and is kept in the garage away from the sun. I asked the technician to double check the rear tires for separation and he stated they were fine. A couple of weeks later, I was driving to California and there was a loud bang on the rear driver side. The truck indicated the the tire was losing pressure. I pulled over to the side of the busy road as soon as possible. The entire tread was missing form the tire and when it came off it damaged the wheel well and the rear bumper and taillight.There was a lot of traffic on the highway and not much shoulder it was a pretty scary and unsafe situation I but got the tire changed with the spare. About an hour later the passenger side tire blew up, there was way more damage on this side including bent exhaust and damage to the fender. I had to get roadside assistance to change the tire so I changed both rear tires so i could have a spare.When I took the car back to Henderson Chevrolet they told me this is a common problem they have had 10 in the last 6 months. Boulder Autobody said they had seen 7 in the last 6 months. Henderson Chevrolet sent both tires to Goodyear to be examined and they conveniently lost one of them and stated that the tires were not defective. Thank goodness no one was hurt, this could have easily killed someone.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703310December 5, 2025
BACK OVER PREVENTION
The contact owns a 2019 GMC Sierra 1500. The contact stated that the rearview camera displayed a black screen while the vehicle was in reverse(R). The contact stated that the failure obstructed driving visibility, preventing the driver from safely operating the vehicle. The vehicle was taken to the dealer; however, the contact was informed by the dealer that the part needed for the recall repair was not available. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was not notified of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703311December 5, 2025
EQUIPMENT
The contact owns a 2025 GMC Sierra 2500. The contact researched online and became aware that there was a recent recall under NHTSA Campaign Number: 25V815000 (Equipment) for the Owner's Manual. The contact stated that the vehicle was sold without the Owner's Manual. The contact stated that the manufacturer was called and was advised that the recall was only related to the 2026 Chevrolet Silverado models and the vehicle was not the same year, make or model. The contact was attempting to retain a physical copy of the Owner’s Manual and thought that it was a safety issue since there was a safety recall. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702889December 4, 2025
ENGINE
Heard a ticking noise then check engine light started blinking along with service esc and parking brake. Took it to the dealer and I had a bad lifter again. I was previously repair for lifters under warranty a little over 2 years ago.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703015December 4, 2025
POWER TRAIN, ENGINE
MY 2020 5.3 L GMC AT4 IS EXPERIENCING LOSS OF POWER WITH BUCKING & STALLING. CYLINDERS ARE NOT ACTIVATING WHEN CALLED CHECK ENGINE LIGHT IS FLASHING, IT STARTS ROUGH AND MAKES NUMEROUS NOISES AT VARIOUS SPEEDS, AS WELL AS AT IDLE. SO I BROUGHT MY VEHICLE TO MY LOCAL AUTO REPAIR SHOP. OUR MECHANIC FOUND TWO FAILED FUEL INJECTORS AND A FAILED THROTTLE BODY. THEN THE LOUD KNOCKS IN MY BLOCK FAILED AN ACOUSTIC TEST. HE ALSO DETERMINED THE LIFTERS, PUSH RODS AND CAMSHAFT ARE EXPERIENCING EXCESSIVE WEAR. THE AFM SYSTEM HAS FAILED! HE WARNED ME THAT FURTHER USE OF MY MOTOR (WITH ONLY 42K MILES ON IT) WILL CAUSE A CATASTROPHIC FAILURE. MY RESEARCH SHOWS THAT THESE ISSUES ARE BECOMING COMMON OF 5.3 GMC MOTORS. WE SEARCHED THE COUNTRY FOR A REBUILT MOTOR AND FOUND THAT NONE ARE AVAILABLE FOR THE NEXT SEVERAL MONTHS. HOWEVER, I WAS ABLE TO FIND A NEW MOTOR AT MUCH GREATER COST. GMC HAS DECLINED ASSISTANCE AT THIS TIME. MY VEHICLE HAS NO VALUE AS IS, SO I ORDERED THE NEW GM ENGINE. WITHOUT THE DOD SYSTEM, THESE ENGINES WERE DESIGNED TO GO WELL OVER 100,000 MILES. I AM A FAITHFUL GMC OWNER AND NONE OF MY PREVIOUS GMC TRUCKS (2003, 2013, 2015, 2019) HAD SUCH A MAJOR PROBLEM. NOW THE 2020'S FUEL SAVING SYSTEM HAS FAILED AND REQUIRES REPAIRS THAT AMOUNT TO HALF THE VALUE OF MY TRUCK. WHEN A FULL SIZE TRUCK STALLS ON THE HIGHWAY IT'S CERTAINLY LIFE THREATENING.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703096December 4, 2025
ENGINE
Engine malfunction, had dealer look at truck and they said I needed a new engine, check engine light came on and a knocking noise appeared suddenly. Reading about 2021+ sierra with 6.2 engine that has a recall with the same problem as mine. Wondering why that recall wasn’t extended to my truck as well.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702779December 3, 2025
POWER TRAIN
Transmission Hard shifts 1-2 or 2-3 Delayed engagement into Drive/Reverse Shudder at 30–60 mph Slipping under light throttle Clunk when stopping The risk I've described to the dealer is that the hard shifts at stop and go in heavy traffic situations could cause and accident. Yes the issue has been confirmed at the dealer and they replaced the transmission. That did not resolve the issue. It has not been inspected. No warnings.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702830December 3, 2025
POWER TRAIN, ENGINE
On 10/21/2025 as I was traveling on the highway in Kansas at 60 mph, the vehicle lost power and the engine went into limp mode immediately reducing the speed dramatically. Multiple warning lights flashed on the screen. I was able to get the truck to the side of the highway. The vehicle never started again. I was informed by the dealer that the vehicle would need a new engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702837December 3, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2024 GMC Sierra 1500. The contact stated that while driving 40 MPH and attempting to make a right turn while depressing the accelerator pedal, the contact heard a popping sound coming from the front driver’s side and three of the wheels attempted to switch to 4WD; however, the driver’s side wheel failed to respond as intended. The contact was able to pull over to the right side of the road. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed; however, the result was not provided. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 25V274000 (ENGINE and ENGINE COOLING); however, the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was 55,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702444December 2, 2025
ENGINE
Truck started with a knocking noise in the engine that developed into a grinding noise. Dealer Service Department inspected and did a transmission tear down only to discover the issue is with the excessive play in the crankshaft. At 13K miles, the service department has stated the entire engine needs to be replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702502December 2, 2025
ENGINE, POWER TRAIN
Engine failure on 12/1/2025 16,253 miles and 591.9 hours on vehicle. Vehicle has the 6.2l engine. Towed to dealership
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702508December 2, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 60 MPH, the vehicle started shuddering. The check engine and stabilizer warning lights were occasionally illuminated. The contact pulled over into a nearby gas station, and the vehicle was later towed to a local dealer. The vehicle remained at the local dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired due to the cost. The local dealer informed the contact that the failure was related to NHTSA Campaign: 25V274000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 49,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702395December 2, 2025
ELECTRICAL SYSTEM
The Telemetry/OnStar unit stopped working on my 2023 GMC Sierra 1500 Denali. This renders the OnStar unit unusable for both data and calling OnStar. In the event of an accident, the driver could not call OnStar for help and OnStar would not get an automatic notification that there had been a crash with the vehicle's location. The failure of the unit has also caused a code indicating Low Brake System Voltage. I know that is not the case in my vehicle at this time, but if the brake system does start to fail, there is no way to know if the code is real or just a result of the Telematics system failing. This failure occurred shortly after an Over-The-Air software update GMC sent out. I have seen numerous reports of people with the exact same year and model having the same issue. The unit worked fine for 2.5 years and after the software update, it was bricked. GM wants in the neighborhood of $1,000 to replace and install the unit but they are on backorder with ETA's 3 or 4 months out. They are also coded with the VIN so there is no other option than to go to the dealership for repair. The part cannot be ordered from an aftermarket manufacturer or from GM's official parts website, local dealership only. In order to get this important safety feature working again, the only option is to go have it fixed at the dealership, which charges $200/hr in labor on top of the $500 part needed. The 3-4 month backorder should be enough evidence that GMC has had a widespread failure of these units. GMC basically broke the Telemetry/Onstar units with a software update and wants it's customers to pay for their mistake. If this is not considered an important enough of a safety feature for NHTSA to do an investigation on, this matter should be investigated as an illegal business practice with the FTC or Department of Justice. GM has effectively created a problem (through the software update) that only they can fix and then charging customers whose warranty has expired.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702171December 1, 2025
ELECTRICAL SYSTEM
My center console wires for the charging pad broke and shorted out causing wires to burn and short the whole system out
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11702181December 1, 2025
ELECTRICAL SYSTEM, VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
The contact owns a 2016 GMC Sierra 1500. The contact stated that while idling in the drive-through at a pharmacy, the contact noticed smoke coming from the rear window, and the rear window shattered. The contact stated that the defroster was activated at the time of the failure. There was no injury sustained. The contact deactivated the defroster and drove to the residence, where the contact disconnected the defroster fuse. The contact related the failure to Customer Satisfaction Program Number: N192265660 (Rear Window Defroster Thermal Events). The vehicle was not diagnosed or repaired by an independent mechanic. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 139,250.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702201December 1, 2025
ENGINE
The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, there was a tapping sound coming from the engine compartment, with the check engine warning light illuminated. The contact also stated that the vehicle lost motive power. The vehicle was towed to the dealer, where it was diagnosed, and determined that the lifter rod had failed and needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 126,581.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702210December 1, 2025
ENGINE
The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle hesitated and failed to properly accelerate while the accelerator pedal was depressed. No warning light was illuminated. In addition, the contact was aware of excessive oil consumption and the vehicle was previously taken to a local dealer. An appointment with the same local dealer was scheduled to inspect the vehicle. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 87,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702217December 1, 2025
ENGINE
Engine oil cooler lines leaking from crimp joints. "Oil Pressure Low Turn Vehicle Off" display showed on dashboard. Oil is present all over the bottom of my truck as well as a trail along the road and the parking lot where I parked it. I have not brought it to the dealership yet. There has been a Customer Service Program notice about this issue, I got my truck after the issue was sent out so I did not get the letter or supposedly this truck is not part of it even thought it is the exact issue. Customer Service Program number N212326940.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702228December 1, 2025
ENGINE
Driving on the Highway, the engine shuttered, but kept going. When I had to slow down, the engine stalled and would not restart. It left me in the center lane of a three lane highway. I was able to push the vehicle off to the side of the road. Very dangerous. No warning lights came on, no alerts. I had the truck towed to Folsom Buick & GMC in Folsom CA where the diagnosed a complete engine failure. The have now had my truck for a full month. They are trying to get GMC to share the cost of the replacement motor. In the meantime, I'm renting a pickup truck so I can continue to work.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702269December 1, 2025
STEERING
The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle lost power steering functionality and shut off. The contact was able to pull over to the side of the road even though the steering wheel was difficult to turn. The contact was able to restart the vehicle after several attempts. The contact stated that the failure had recurred while driving. The contact stated that the message "Service Stabili-trak" might have been displayed. The local dealer and another dealer were contacted and confirmed that the VIN was not included in NHTSA Campaign Number: 18V586000 (Steering). The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 130,379.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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