There are no safety recalls for the 2015 GMC Sierra Denali, but owners have filed 22 complaints with NHTSA.
2015 GMC Sierra Denali problems reported by owners
| Problem area | Reports | |
|---|
| Service Brakes | 7 | |
| Power Train | 5 | |
| Electrical System | 3 | |
| Unknown or Other | 2 | |
| Structure | 1 | |
| Engine | 1 | |
| Air Bags | 1 | |
| Steering | 1 | |
| Seats | 1 | |
| Engine and Engine Cooling | 1 | |
| Fuel System, Diesel | 1 | |
Most reported parts
- Structure › Body › Roof and Pillars — 1
Typical mileage at the time of the problem: 47,800 miles (median of owner reports).
Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.
Recent 2015 GMC Sierra Denali complaints
Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.
Fuel System, Diesel · at 160,000 miles · reported Dec 1, 2025
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 âEngine Power Failureâ warning light illuminated. The vehicle was towed to the residence. The vehicle was later towed to an independent mechanic, where it was diagnosed and determined that the fuel system had failed and there were metal shavings in the fuel system. The contact was informed that the fuel system needed to be replaced. The vehicle was not repaired. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer…
Power Train · reported Mar 8, 2024
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 also occurred while shifting the vehicle into reverse(R). Additionally, the failure occurred while slowing down for a traffic signal. The contact stated that the failure was a constant. The contact stated she had not noticed any warning lights during the failure. The contact had taken the vehicle to a…
Service Brakes · at 30,000 miles · reported Dec 30, 2020
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 computer shows a history but no current error codes, and they can not work on vehicle until it has current codes. So I have a truck that is designed to tow cargo/vehicle but I AM not able to use my truck for that purpose because of this warning message. I have contacted dealerships, customer service…
Unknown or Other · at 57,000 miles · reported Aug 18, 2020
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
Service Brakes · at 39,500 miles · reported Feb 9, 2020
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 particular attention that the brakes while they were hard to press were pulsating so I had to use extreme leg pressure to stop the vehicle. My truck has already had the recall for the same issue earlier this year. When this 1st happened it almost caused me to wreck into a fence
Frequently asked questions
Does the 2015 GMC Sierra Denali have any recalls?
No. NHTSA has no safety recalls for the 2015 GMC Sierra Denali as of this update. Check your VIN at nhtsa.gov/recalls for the latest status.
What is the most common problem with the 2015 GMC Sierra Denali?
Owners report service brakes problems most often (7 reports), followed by power train (5). The typical mileage when problems were reported is about 47,800 miles.
Are GMC recall repairs free?
Yes. Safety recall repairs are free at authorized GMC dealers, whether you are the first owner or bought the car used.