2019 GMC Terrain service brakes problems
58 owner complaints filed with NHTSA name the service brakes on the 2019 GMC Terrain — 33% of all complaints for this model year.
What owners report
“Brake assist light came on and brake pedal became stiff/hard to push. Vehicle struggled to brake. Replaced brake pads and checked brake fluid. Brakes still inoperable. Check engine light came on for vacuum pump. When replacing pump, metal shards and pieces were falling out when original was…”
filed Mar 28, 2026
“Vacuum pump exploded into camshaft and engine area, causing me to lose brakes completely on the highway. Costly repairs to clear out metal shrapnel and replace camshaft.”
filed Mar 16, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Rear brake caliper pistons may have an insufficient coating causing gas pockets to form…Campaign 18V576000 · Aug 30, 2018
Service Brakes problems in other Terrain years
| Year | Reports | Share |
|---|---|---|
| 2026 Terrain | 3 | 13% |
| 2024 Terrain | 2 | 4% |
| 2022 Terrain | 1 | 2% |
| 2021 Terrain | 8 | 24% |
| 2020 Terrain | 61 | 33% |
| 2018 Terrain | 66 | 31% |
| 2017 Terrain | 2 | 2% |
| 2016 Terrain | 5 | 3% |
| 2015 Terrain | 8 | 3% |
| 2014 Terrain | 9 | 3% |
| 2013 Terrain | 7 | 2% |
| 2012 Terrain | 5 | 1% |
Other reported problem areas on the 2019 GMC Terrain
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.