This service bulletin provides information on availability for a seat belt extender.
full bulletin at NHTSA ↗2008 GMC Envoy seatbelts problems
moderate Owners of the 2008 GMC Envoy have filed 5 NHTSA complaints about the seatbelts at roughly $500 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See seatbelts across all vehicles →
When does it fail?
Of the 5 seatbelts complaints filed for the 2008 GMC Envoy, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
No new NHTSA seatbelts complaint has been filed on this vehicle in over 6 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering seatbelts on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This informational bulletin provides information to advise dealers about seat belt buckles not operating and/or seat belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle release button sticking.
full bulletin at NHTSA ↗This informational bulletin provides information on availability for the seat belt extender.
full bulletin at NHTSA ↗This technical bulletin provides a revision of 05-09-40-002F to add the 2013-2014 model years.
full bulletin at NHTSA ↗GM: THERE ARE SEAT BELT PROBLEMS: DIFFICULTY LATCHING AND UNLATCHING BUCKLE. BUCKLE RELEASE BUTTON IS STICKING. SEAT BELT WARNING LIGHT ILLUMINATED. LIKELY CAUSED BY STICKY BEVERAGES THAT ARE SPILLED INTO THE BUCKLE ASSEMBLY. UPDATED 4/3/12.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 1 most recent
Tl* the contact owns a 2008 GMC envoy. When the contact parked the vehicle and attempted to exit, the seat belt would not release. The contact had to physically climb her way out of the vehicle. The red button to release the seat belt was jammed in the down position. The dealer and manufacturer were not notified. The vehicle was not diagnosed or repaired. The failure mileage was 120,393.
Common questions
How serious is the seatbelts problem on the 2008 GMC Envoy?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $500 and most owners catch it before it causes a breakdown.
At what mileage does the seatbelts typically fail?
Based on the 5 complaints filed, seatbelts issues most often appear around 81,826 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $500 for seatbelts repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to seatbelts?
No active recalls currently cover seatbelts issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.