2021 GMC Acadia
US · SUV · Standard Sport Utility Vehicle 2WD
The 2021 GMC Acadia 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 Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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
- Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.6L 6-cylinder (SIDI), 2.5L 4-cylinder (SIDI)
- Power
- Not available
- Torque
- Not available
- Transmission
- 9-speed automatic
- Drivetrain
- Varies by configuration: AWD, FWD
- Fuel
- Gasoline
- Seating
- Not available
Key Performance & Dimensions
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.6L 6-cylinder (SIDI), 2.5L 4-cylinder (SIDI) | |
| Displacement | 2.0 L to 3.6 L | |
| Cylinders | 4 to 6 | |
| Aspiration | Turbocharged | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Not available from our sources: Power, Torque.
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 | 25 mpg (9.4 L/100 km) to 21 mpg (11.2 L/100 km) | EPA fueleconomy.gov |
| City | 22 mpg (10.7 L/100 km) to 19 mpg (12.4 L/100 km) | |
| Highway | 29 mpg (8.1 L/100 km) to 26 mpg (9.0 L/100 km) |
Not available from our sources: Electric range, Battery capacity.
Trims and configurations
5 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 October 15, 2026.
22V709000: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
General Motors, LLC (GM) is recalling certain 2020-2021 Cadillac XT5, XT6, and GMC Acadia vehicles equipped with the optional Surround Vision feature. The rearview camera coaxial cable connectors may have been crimped improperly, causing the rearview camera to fail or function intermittently.
Remedy: Dealers will replace the coaxial cables, free of charge. Owner notification letters were mailed January 18, 2023. Owners may contact Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for…
Reported September 22, 2022. View on NHTSA
21V422000: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
General Motors, LLC. (GM) is recalling certain 2021 Cadillac XT5, XT6, and GMC Acadia vehicles. The fuel supply lines may be improperly attached and seated.
Remedy: Dealers will inspect and replace fuel supply lines as necessary, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Cadillac customer service at 1-800-458-8006 and GMC customer service at…
Reported June 3, 2021. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved October 11, 2026 · US Government public data
- NHTSA vPIC · retrieved October 11, 2026 · US Government public data
Source checked: October 11, 2026
Data verified: October 12, 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 Acadia have?
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.6L 6-cylinder (SIDI), 2.5L 4-cylinder (SIDI). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2021 GMC Acadia?
Combined fuel economy is 25 mpg (9.4 L/100 km) to 21 mpg (11.2 L/100 km), as published by the source shown in the specification table.
Is the 2021 GMC Acadia front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: AWD, FWD.
Are there recalls for the 2021 GMC Acadia?
NHTSA lists 2 recall campaigns for this model year (last checked October 15, 2026). Details are in the Recalls section.