2015 GMC Sierra 1500 Structure & Body Problems
NHTSA lists 41 Structure & Body complaints for the 2015 GMC Sierra 1500, about 5% of its 793 total complaints that year. One related recall (campaign 14V446000) covers a seat hook bracket weld issue. Median mileage at failure was 29,494.5 miles.
- Structure & Body complaints
- 41
- 5% of 793
- Crashes reported
- 0
- Fires reported
- 1
- Injuries reported
- 1
- Median mileage
- 29,495 mi
- Related recalls
- 1
Typical body and structure symptoms owners report
- Owners report mice nesting in the cowl air plenum area on top of the cabin air filter, saturating it with dander and feces that later cause odors inside the cabin.
- Some describe the driver's seat unexpectedly sliding forward while driving at low speed due to an electrical seat-control failure, wedging the driver between the seat and steering wheel.
- Others report the driver's seat base clicking or shifting as if a mounting bolt loosened, requiring a shim kit installed by the dealer.
- Several owners noticed surface rust forming on the frame, rear end, and other underbody components at relatively low mileage.
- One owner reported rainwater leaking through the roof-mounted antenna into the passenger cabin, damaging the OnStar and navigation electronics.
- Rear seat headrests were described as too low and prone to not staying locked in the raised position.
When 2015 GMC Sierra 1500 body and structure complaints were filed
First complaint Feb 24, 2015, latest Aug 21, 2026.
Structure & Body recalls for the 2015 GMC Sierra 1500
- NHTSA 14V446000Jul 23, 2014Structure & Body124,007 vehicles
Seats
General Motors LLC (GM) is recalling certain model year 2013-2014 Buick Encore and Cadillac ATS; 2014 Cadillac CTS, ELR, Chevrolet Caprice and SS vehicles; and 2014-2015 Chevrolet Silverado and GMC Sierra Trucks. Due to an incomplete weld on the seat hook bracket assembly, the front seats in the affected vehicles may not stay secured in place during a high load condition such as a crash.
Risk: A seat that does not stay secured increases the risk of occupant injury in a vehicle crash.
Remedy: GM will notify owners, and dealers will inspect the seat hook bracket assembly weld and replace the lower seat track, as necessary, free of charge. The recall began on August 15, 2014. Owners may contact GM customer service at 1-800-521-7300 (Buick), 1-800-458-8006 (Cadillac), 1-800-222-1020 (Chevrolet), and 1-800-462-8782 (GMC). GM's number for this recall is 14340.
Structure & Body complaints by Sierra 1500 model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many Structure & Body complaints does the 2015 GMC Sierra 1500 have?
- NHTSA lists 41 Structure & Body complaints for the 2015 Sierra 1500, which is about 5% of the 793 total complaints filed for that model year.
- Is there a recall related to Structure & Body issues on the 2015 Sierra 1500?
- Yes, campaign 14V446000 covers the seat hook bracket assembly weld on certain 2014-2015 GMC Sierra trucks; dealers inspect the weld and replace the lower seat track if needed.
- At what mileage do these structure and body problems tend to show up?
- The median mileage at failure reported to NHTSA for this problem area is 29,494.5 miles.
- Were there any crashes, fires, or injuries linked to these complaints?
- NHTSA data shows 0 crashes, 1 fire, and 1 injury among the 41 Structure & Body complaints for the 2015 Sierra 1500.
- How does 2015 compare to other Sierra 1500 model years for this problem area?
- The 2015 model year's 41 complaints and 5% share are lower than years like 2010 (47 complaints, 22% share) and 2011 (64 complaints, 18% share), suggesting fewer relative Structure & Body issues than earlier model years.