repaired · 2025 Q1
Curtain: inflator
Risk. A separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the…
2015 GMC Sierra 1500Problems, recalls & complaints
NHTSA has logged 721 owner complaints about the 2015 GMC Sierra 1500, most often about the service brakes. It is covered by 9 safety recalls, and for recall 21V-245 the manufacturer reports only 49% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 4, 2026. Updated daily.
Complaints by system
Where the 2015 GMC Sierra 1500 has problems
721 complaints grouped by the system owners reported.
219Service brakes15 crash/fire/injury
99Power train
96Electrical system7 crash/fire/injury
93Exterior lighting1 crash/fire/injury
84Engine2 crash/fire/injury
81Steering5 crash/fire/injury
37Air bags
28Structure
19Visibility/wiper
11414 other systems4 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Service brakes | 219 | 15 |
| Power train | 99 | 0 |
| Electrical system | 96 | 7 |
| Exterior lighting | 93 | 1 |
| Engine | 84 | 2 |
| Steering | 81 | 5 |
| Air bags | 37 | 6 |
| Structure | 28 | 1 |
| Visibility/wiper | 19 | 1 |
| 14 other systems | 114 | 4 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
9 recalls
2015 GMC Sierra 1500 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2023 Q4
Seat belts: front
Risk. A broken pretensioner cable reduces the effectiveness of the driver's seat belt, increasing the risk of injury.
no report yet
Curtain: inflator
Risk. If the end cap separates from the inflator, the compressed gas will escape and the end cap can be propelled into the vehicle, increasing the risk of injury or…
repaired · 2021 Q2
Electronic stability control (ESC)
Risk. Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the…
Show 5 more recalls
repaired · 2021 Q1
Power assist: vacuum
Risk. As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the…
repaired · 2020 Q1
Steering: electric power assist system
Risk. If EPS assist is lost and then suddenly returns, the driver may have difficulty steering the vehicle, especially at low speeds, increasing the risk of a crash.
repaired · 2018 Q4
Air bags: frontal
Risk. A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the…
repaired · 2018 Q2
Air bags: frontal
Risk. A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the…
repaired · 2017 Q4
Seat belts
Risk. If the tensioner cable separates, the driver may not be properly restrained in the event of a crash, increasing their risk of injury.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with GMC.
Mileage at failure
When do service brakes problems start?
56kmiles, median
Based on the odometer reading in 156 service brakes complaints. 92% were reported before 100,000 miles.
11under 30k miles144under 100k miles12100k miles or more
Owner-reported costs
What owners say repairs cost
Dollar amounts owners wrote in their complaints when describing a repair or a quote. These are not price estimates; a system is shown only when at least 8 owners mentioned a cost.
Service brakes
10 owners mentioned a cost$1,015median
Middle half: $688 – $1,261
Engine
10 owners mentioned a cost$5,923median
Middle half: $1,763 – $7,750
If a problem is covered by a recall, the dealer fixes it for free. Some manufacturers also reimburse owners who paid for a repair before a recall was announced.
Best & worst years
2015 vs. every other Sierra 1500 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Sierra 1500 median. How we score
'97'98'99'00'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2015 GMC Sierra 1500 safety ratings
2015 GMC Sierra 1500 PU/EC RWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
★★★★★
- Rollover: 4 stars (17.9% risk)
- Stability control: Standard
- Forward collision warning: Optional
- Lane departure warning: Optional
2 investigations
NHTSA defect investigations
Federal investigations that included the 2015 GMC Sierra 1500, and the recalls they led to.
- Desiccated Air Bag Inflator RuptureOpen
- Brake Vacuum Pump FailureLed to recall 19V-645
In owners' words
What Sierra 1500 owners report
Recent service brakes complaints filed with NHTSA, shortened. Personal details are removed.
When backing up, either on a hill or flat surface, the brakes fail to stop the vehicle. There is a pulsing sensation with the brakes due to failure of the vacuum. The brake pedal also becomes impossible to depress. No warning lights appear when this occurs.
I had and still have the Brake Assist failure warning light on and having issues with brake pedal effort not working as it should to stop vehicle and also the stability control warning lights., the brakes hardly work at all at low speeds and most of the time don't stop the vehicle almost causing…
Starting vehicle in parking lot and backing out of parking space. Brakes failed and truck continued to roll backwards almost hitting a pedestrian. I was able to stop hard on the pedal and stop the vehicle. This has happened several times. I have a steep driveway and backing down to the street the…
Own a 2015 Sierra 1500?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.