Worst 2021 GMC Terrain Problems
Top 3 most-reported issues with average mileage at failure.
Engine Problems
Electrical Faults
Transmission / Drivetrain
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All Problems by Category
Every NHTSA complaint category for the 2021 GMC Terrain.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Engine Problems | 8 | — | — | 61,000 mi | |
| Electrical Faults | 7 | — | — | — | |
| Transmission / Drivetrain | 7 | — | — | 57,422 mi | |
| Brakes | 5 | 2 | — | 78,843 mi | |
| Forward Collision Avoidance: Automatic Emergency Braking | 2 | — | — | — | |
| Fuel System | 2 | — | — | — | |
| Lane Departure: Blind Spot Detection | 2 | 1 | — | — | |
| Suspension Failures | 2 | — | — | — | |
| Airbags | 1 | 1 | — | — | |
| Child Seat | 1 | — | — | — | |
| Engine And Engine Cooling:Engine:Engine Control Module (Ecu/Ecm) | 1 | — | — | — | |
| Engine And Engine Cooling:Engine:Gasoline:Turbo/Supercharger | 1 | — | — | — | |
| Forward Collision Avoidance: Adaptive Cruise Control | 1 | — | — | — | |
| Forward Collision Avoidance: Warnings | 1 | 1 | — | — | |
| Gasoline Fuel System | 1 | — | — | — | |
| Fuel Pump | 1 | — | — | — | |
| Steering Defects | 1 | — | — | — | |
| Unintended Acceleration | 1 | 1 | — | — | |
| Wipers & Visibility | 1 | — | — | — |
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2021 GMC Terrain. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Recalls for 2021 GMC Terrain
2 NHTSA recall campaigns affecting ~677,784 vehicles.
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, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."
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.
Other GMC Terrain Years
2021 GMC Terrain — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2021 GMC Terrain reliable?
What are common problems with the 2021 GMC Terrain?
At what mileage do problems start on the 2021 GMC Terrain?
How safe is the 2021 GMC Terrain?
Does the 2021 GMC Terrain have any recalls?
Should I buy a 2021 GMC Terrain?
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full GMC Terrain reliability report with year-by-year comparison and generation analysis.
Check Your Specific 2021 GMC Terrain
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
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