2015 GMC Sierra 1500 service brakes, hydraulic problems
11 owner complaints filed with NHTSA name the service brakes, hydraulic on the 2015 GMC Sierra 1500 — 2% of all complaints for this model year.
What owners report
“The contact owns a 2015 GMC Sierra. The contact stated that while driving at an undisclosed speed and also while the vehicle was parked, the ABS and stability control warning lights would unexpectedly illuminate. The vehicle was taken to an independent mechanic, where the warning lights were…”
filed May 13, 2026
“The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the brake pedal was firm and unresponsive, and the vehicle was difficult to stop. The vehicle eventually came to a stop with the ABS warning light illuminated. The vehicle was driven back to the…”
filed Feb 18, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Amount of vacuum created by the vacuum pump may decrease over timeCampaign 19V645000 · Sep 6, 2019
Service Brakes, Hydraulic problems in other Sierra 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Sierra 1500 | 1 | 1% |
| 2024 Sierra 1500 | 1 | 0% |
| 2023 Sierra 1500 | 2 | 0% |
| 2022 Sierra 1500 | 2 | 0% |
| 2021 Sierra 1500 | 1 | 0% |
| 2020 Sierra 1500 | 3 | 1% |
| 2019 Sierra 1500 | 8 | 1% |
| 2018 Sierra 1500 | 4 | 1% |
| 2017 Sierra 1500 | 6 | 2% |
| 2016 Sierra 1500 | 6 | 2% |
| 2014 Sierra 1500 | 5 | 1% |
| 2010 Sierra 1500 | 1 | 1% |
Other reported problem areas on the 2015 GMC Sierra 1500
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.