GMC Sierra Complaints (2008)

555 consumer complaints on file.

#11759983August 27, 2026
TRACTION CONTROL SYSTEM, ENGINE
The contact owns a 2008 GMC Sierra 1500. The contact stated that while driving at approximately 30 MPH and towing a camper, the vehicle began to bounce while navigating curves. The traction control warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the engine variable displacement lifter pins had failed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 157,000. The VIN was unavailable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11757393August 17, 2026
SEAT BELTS
The contact owns a 2008 GMC Sierra 1500. The contact stated that while driving 5 MPH with her husband and grandson inside the vehicle and entering the driveway at the residence, there was an abnormally loud explosion coming from inside the vehicle and the driver’s side seat belt tightened unexpectedly. The contact was able to park the vehicle. The contact sustained bruising to the chest. The contact looked at her husband and became aware that the passenger’s side seat belt had tightened and there was blood dripping on the left side of the face, and her grandson had a bruise on the inner thigh. The contact took her husband to the Emergency Room for several fractured ribs. The contact’s grandson smelled an abnormal burning odor and became aware that the front passenger’s side seat belt was smoking. There was no warning light illuminated. The vehicle was towed to the dealer to a dealer to be diagnosed. The vehicle was diagnosed with a seat belt pre-tensioner failure. The contact was informed that the seat belt pre-tensioner needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and opened a case. The failure mileage was 208,809.
Crash:
No
Fire:
No
Injuries:
3
Deaths:
0
#11751263July 18, 2026
AIR BAGS
Started the truck in driveway waiting on woman to get in on passenger side BOOM! AIR BAG EXPLODED didn't know what happened and then the passenger side airbag exploded. Shut the truck off got out 5 minutes later passenger side airbag exploded again and it was smoking they are very loud thank God no one was injured or we were driving down the road and that happened that would have been terrible.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11736887May 10, 2026
AIR BAGS
The curtain airbags on both the passenger and driver side deployed while driving down the road. The truck is available for inspection although the deployed bags have been cut off in order to drive it home. Pictures were taken before doing so and are available for inspection. My son is pretty shaken up and has injuries to his shoulder, face and his ears are ringing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11726399March 23, 2026
SEAT BELTS
I was driving down the highway at 70 mph, when there was a loud bang followed by a gun powder smell. My seatbelts went tight...hazard lights automatically came on...radio went dead...and the Airbag light came on. The pretensioners in both driver and passenger seats had deployed. I pulled over and shut the truck off, to get out and inspect it. There was no warning, and luckily I was composed enough to not wreck into anyone or anything. I see there have been a few similar incidents, so I'm glad this isn't just a solitary incident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724596March 16, 2026
FUEL SYSTEM, DIESEL
The contact owns a 2008 GMC Sierra 1500. The contact stated that while the vehicle was parked in the garage, diesel fuel started leaking onto the garage floor. The contact recently purchased the vehicle, inspected the source of the leak, and discovered that the fuel lines were completely rusted. Additionally, the contact stated that after refueling the vehicle, the fuel level lowered to half a tank the following day, creating a hazard. The vehicle was towed to a dealer but had not yet been diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 163,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691910October 7, 2025
AIR BAGS
The contact owns a 2008 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 21V050000 (Air Bags). The local dealer was contacted and informed the contact about the disclaimer about the dashboard possibly being damaged. The dealer informed the contact that there were no loaner vehicles, but then called back and offered a loaner. The manufacturer was contacted and filed a clai,m and referred the contact to another local dealer. The contact called the other local dealer, Ferman Chevrolet of Tarpon Springs (43520 US Hwy 19 N, Tarpon Springs, FL 34689), who confirmed there was a disclaimer related to the recall repair. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683498August 27, 2025
AIR BAGS
The contact owns a 2008 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 21V050000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682921August 25, 2025
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact purchased a 2008 GMC Sierra 1500. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 126,498. It was later discovered that the mileage on the title was approximately 250,205.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682073August 21, 2025
AIR BAGS
I have contacted Blaise Alexander in muncy pa 17756 in 2020 or 2021 and they told me that the part was on back order they would contact me when the part has come in 5 years later they still have not contacted me I have reached out by phone through email and Facebook messenger to set up a time to fix my 2008 gmc sierra and haven’t heard anything well last week my service air bag soon light came on and I am very nervous about that so I will not drive the truck I would like to file a formal complaint and have this taken care of please
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11666843June 13, 2025
AIR BAGS, VISIBILITY/WIPER
Driving down the road on way home from work airbags blew out. The one in the steering wheel and the one on the passenger side. It busted windshield on passenger side. Shards of stuff all over dash on passenger side. That airbag popped 2 times.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664061May 31, 2025
AIR BAGS
Air bags did not deploy when another vehicle hit truck on front passenger side at 35-40 mph
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11656262April 23, 2025
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact purchased a 2008 GMC Sierra 2500. The contact stated that while researching the history of the vehicle it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 166,521 and while researching online, it was discovered that the mileage was 207,759.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633611January 2, 2025
SEAT BELTS
I was driving in a parking structure at low speed when a loud bang went off inside the cab. The hazard lights went off, there was an acrid electrical smell, and fine dust was coming from the steering wheel area. I stopped the truck and got out to look for a collision, but there was none. When I restarted the truck, the air bag light came on and I noticed that the seatbelts were retracted and no longer functional. I was not injured, but I believe that if this had happened in traffic or on the highway, I and my passenger could have been seriously hurt. The vehicle was towed to the GMC dealership, where they identified an error with the module that sends a signal to the airbags and seatbelts to deploy. Prior to this occurrence, I had no indication that the airbag/seatbelt system was faulty or in need of service.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11621886October 25, 2024
WHEELS
No accident happened as the wheel was never installed due to not meeting the load weight capacity rating of the vehicle. The wheel is marked max load 1150kg (2230 per axle) and the vehicle weight loading label shows the rear axle capacity at 2706kg. The wheel is also marked as SAE J2530 compliant but does not meet J2530 section 3.5 due to the low load capacity. These wheels are widely available in the aftermarket and list most of the 2000-2010 GM 2500HD/3500 pickups as the application but do not meet load capacity on any of them. Please note that the VIN is for a typical 2008 Sierra 2500HD pickup in a scrap yard. I do not own that vehicle. It is a weight label photo from Hollander parts finder on that pickup.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11616145September 24, 2024
AIR BAGS, SEAT BELTS
High speed collision with a cement truck destroyed most of the front portion of the vehicle. Neither passenger nor driver airbag deployed and seat belts did not lock up, injuring the driver. No warning lights indicating an airbag problem appeared prior to crash. The vehicle is now impounded at towing company yard pending insurance investigation.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11615058September 17, 2024
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR
The contact owns a 2008 GMC Sierra 1500. The contact stated that after the dealer repaired the vehicle under NHTSA Campaign Number: 21V050000 (Air Bags) and GM's Emission Recall: N140581 (Carbon Monoxide Emissions), the vehicle nearly caught on fire. The contact stated that while driving at an undisclosed speed, the contact turned on the A/C, and the vehicle started shaking abnormally. Additionally, the vehicle made abnormal sounds, jerked, and stalled while driving. The vehicle was taken back to the dealer, and there was smoke coming from under the hood. Upon inspection, the dealer discovered that the catalytic convertor was extremely hot and glowing red. The dealer determined that the exhaust system and catalytic convertor needed to be replaced. The vehicle was then towed to the residence. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was 151,071.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11584445April 22, 2024
UNKNOWN OR OTHER
Multiple cracks in dash
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11578944March 22, 2024
STRUCTURE
The contact owns a 2008 GMC Sierra 1500. The contact stated that while driving at 60 MPH, the spare tire detached from underneath. After a visual inspection of the underneath of the vehicle, he observed that the spare tire hoist and frame were severely corroded, potentially compromising the structural integrity of the vehicle. No warning lights were illuminated. The vehicle was not repaired. The manufacturer was not notified of the failure. The VIN was not available. The failure mileage was 197,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541202August 28, 2023
AIR BAGS
The contact owns a 2008 GMC Sierra 1500. The contact stated that while the vehicle was parked and turned off at the residence, the front windshield cracked. Upon inspection, the contact noticed that the front driver's and passenger's side air bags had deployed without impact. The vehicle was towed to the dealer, where it was diagnosed, and it was determined that a short circuit was caused by water damage in the air bag modules underneath the front driver's and passenger's side seats. The vehicle was then towed to a body shop for the air bags to be replaced; however, the replacement parts were on backorder. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 38,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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