2021 GMC Terrain
US · SUV · Small Sport Utility Vehicle 2WD
The 2021 GMC Terrain is listed in the US market as a suv with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- 1.5L 4-cylinder turbocharged (SIDI)
- Transmission
- 9-speed automatic
- Drivetrain
- Varies by configuration: AWD, FWD
- Fuel
- Gasoline
- Economy
- 26 mpg (9.0 L/100 km) to 27 mpg (8.7 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | 1.5L 4-cylinder turbocharged (SIDI) | |
| Displacement | 1.5 L | |
| Cylinders | 4 | |
| Aspiration | Turbocharged | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 9 | |
| Drivetrain | Varies by configuration: AWD, FWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 26 mpg (9.0 L/100 km) to 27 mpg (8.7 L/100 km) | EPA fueleconomy.gov |
| City | 25 mpg (9.4 L/100 km) | |
| Highway | 28 mpg (8.4 L/100 km) to 30 mpg (7.8 L/100 km) |
Our sources do not publish these for this vehicle: Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
2 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 2 recall campaigns for this model year. Last checked November 7, 2026.
23V339000: 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, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child…
Remedy: Owners are advised to install child seats using the vehicle's rear seat belts until the remedy is complete. Dealers will inspect the latch anchorage bars, and remove and replace the finish, as necessary, free of charge. Owner…
Reported May 11, 2023. View on NHTSA
21V612000: 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.
Remedy: Dealers will inspect the tire DOT numbers, and replace any affected tires, free of charge. Owner notification letters were mailed on August 31, 2021. Owners may contact GMC customer service at 1-800-462-8782; and Chevrolet customer…
Reported August 5, 2021. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved November 4, 2026 · US Government public data
- NHTSA vPIC · retrieved October 11, 2026 · US Government public data
Source checked: November 4, 2026
Data verified: November 4, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Compare
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Frequently asked questions
What engine does the 2021 GMC Terrain have?
1.5L 4-cylinder turbocharged (SIDI). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2021 GMC Terrain?
Combined fuel economy is 26 mpg (9.0 L/100 km) to 27 mpg (8.7 L/100 km), as published by the source shown in the specification table.
Is the 2021 GMC Terrain front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: AWD, FWD.
Are there recalls for the 2021 GMC Terrain?
NHTSA lists 2 recall campaigns for this model year (last checked November 7, 2026). Details are in the Recalls section.