2021 Gmc Terrain: owner complaints and recalls
Analysis of 34 owner complaints filed with NHTSA and 2 recall campaigns. Updated 2026-07-25.
34
Complaints
2
Recalls
4
Crash reports
0
Fire reports
4
Injuries
141.2
Severity index
Severity index 141.2 - High. This weights crashes, fires, injuries and fatalities per 100 complaints; see methodology.
What actually fails
| Component | Complaints | Share of complaints citing it |
|---|---|---|
| SERVICE BRAKES | 8 | 23.5% |
| POWER TRAIN | 8 | 23.5% |
| ENGINE | 8 | 23.5% |
| ELECTRICAL SYSTEM | 7 | 20.6% |
| UNKNOWN OR OTHER | 3 | 8.8% |
| FORWARD COLLISION AVOIDANCE | 3 | 8.8% |
| ENGINE AND ENGINE COOLING | 2 | 5.9% |
| FUEL/PROPULSION SYSTEM | 2 | 5.9% |
The single most-reported system is SERVICE BRAKES, cited in 8 of 34 complaints (23.5%). One complaint can name several systems, so these shares overlap and do not total 100%.
Complaints filed per year
| Year | Complaints |
|---|---|
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 9 |
| 2026 (year to date) | 8 |
Complaint volume is rising - the last three years carry 2.2x the filings of the three before them, which usually signals a wear-related defect surfacing with age.
Recall campaigns
| Campaign | Reported | Component | Summary |
|---|---|---|---|
| 21V612000 | 05/08/2021 | TIRES | General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet Equinox and GMC Terrain vehicles equipped with certain Hankook tires. The tires may have been manufactured with an insufficient amount of curative agent, which could cause tread separation. |
| 23V339000 | 11/05/2023 | CHILD SEAT:VEHICLE LATCH ANCHOR | General Motors, LLC (GM) is recalling certain 2020-2023 Chevrolet Equinox and GMC Terrain vehicles. The four rear-seat lower child seat LATCH anchorage bars may have excessive powder coating, which could prevent a child seat from being installed with the anchorage bars. As such |
Source. US National Highway Traffic Safety Administration public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-07-25. Complaints are unverified consumer reports; volume is influenced by how many units were sold and how long the vehicle has been on the road. Not affiliated with NHTSA or any manufacturer.