2015 GMC Sierra Denali Recalls
No NHTSA recalls on record for the 2015 GMC Sierra Denali. That means NHTSA has no open safety campaign for this vehicle — it does not guarantee the absence of problems. Owners have filed 24 complaints with NHTSA, most often about the service brakes. Last updated July 5, 2026.
Complaints by component
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“The contact owns a 2015 gmc sierra 2500 denali. The contact stated that while driving at 65 mph, the vehicle lost motive power with the “engine power failureâ€� warning light illuminated. The vehicle was towed to the residence. The vehicle was later towed to an independent mechanic, where it was…”
“See attached document for complaint.”
“The contact owns a 2015 gmc sierra 1500 denali. The contact stated that while shifting the vehicle from park(p) to drive(d), the vehicle hesitated and then jerked into gear. The contact stated that the entire vehicle was shaking when it jerked into gear. The contact stated that the failure was…”
“4 months ago the display portrayed a message stating, trailer brake warning, have system checked. Since that time I have attempted on numerous to have my vehicle checked. But as of this date I have not been to have any dealership look at my vehicle. I have been told by dealership that the vehicle…”
“Ac blows hot air qont gold freon for longer then week and half and is back to hot air..lead to believe its the ac condenser has failed”
“I was backing up at very low speed the brake pedal got very hard and the vehicle acted like it did not want to stop I had to keep pushing extremely hard on to the break to get the vehicle to stop I tried it again in drive and the vehicle did this exact same thing this time I noticed after paying…”
“Hard brake pedal with increased effort needed to depress the brake pedal. Feels like truck will not stop. Had to have truck towed. Reported back on 11-24-18 to nhtsa: ( #1115347). Brake vacuum pump was replaced @ gm dealer on 11-14-18, same situation happened again on 02-19-19. Gm tsb # pit5361d…”
“Poor brake performance. The brake pedal gets stiff at a low speed and causes the truck to not brake completely”
Defect investigations
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant…
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant…
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2015 GMC Sierra Denali as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.