gmc Sierra problems
0 safety recalls. 465 owner complaints. We mapped every trouble spot before you sign the papers.
Solid reliability overall. Common issues are concentrated in a few systems.
Top trouble spots 8 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
TL* THE CONTACT OWNS A 2008 GMC SIERRA 1500. WHILE THE VEHICLE WAS PARKED, THE FRONT PASSENGER SIDE AIR BAG INDEPENDENTLY DEPLOYED. THE VEHICLE WAS TAKEN TO RAMEY PRINCETON CHEVROLET (LOCATED AT 135 FAIRMONT DR, PRINCETON, WV 24740, (304) 425-2134) WHERE IT WAS DIAGNOSED THAT…
I HAD A RECALL ON MY AIRBAG 2 YEARS BACK AND THE DEALER SAID THAT THE PARTS OR ON BACK ORDER.AT WHAT POINT DOES THIS BECOME A SAFETY ISSUE????
TL* TAKATA RECALL. THE CONTACT OWNS A 2008 GMC SIERRA 1500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V381000 (AIR BAGS); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE…
MY 2008 GMC SIERRA DENALI HAS WATER CONDENSATION IN BOTH OF THE TAIL LIGHTS. ITS NEVER HAPPENED BEFORE ON ANY OF MY GMC TRUCKS AND THIS DENALI WASN'T CHEAP.
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2008 GMC Sierra reliable?
Mostly yes. With a reliability score of 7.0 out of 10 based on 465 owner complaints filed with NHTSA, the 2008 GMC Sierra is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
What's the most common problem on the 2008 GMC Sierra?
Based on NHTSA records, the most-reported issue is airbags, with 266 complaints filed. Average repair cost runs about $1,100 at an independent shop.
What's the most expensive thing that goes wrong?
The airbags is one of the costlier repair items. Average repair cost runs about $1,100 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my GMC Sierra has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2008 GMC Sierra?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 465 complaints on file and the costliest repair averaging $1,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.