2021 GMC Acadia

SUV Regular
GMC Acadia 2021
25MPG Combined
5 Trims
← 2020 2021 2022 →
Updated February 27, 2026

Get the full picture on the 2021 GMC Acadia. As a SUV, it achieves 21–25 combined MPG depending on trim and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.

2021 GMC Acadia Specifications

SpecValue
Combined MPG21–25 combined MPG depending on trim
City MPG22
Highway MPG29
Body StyleSUV
Fuel TypeRegular
DriveAWD
Available Trims5

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto22/27/242.0L 4cylAutomatic 9-spd
Auto19/26/213.6L 6cylAutomatic 9-spd
Auto21/27/232.5L 4cylAutomatic 9-spd
Auto22/29/252.0L 4cylAutomatic 9-spd
Auto19/27/223.6L 6cylAutomatic 9-spd

Annual Fuel Cost

Based on EPA estimates, the 2021 GMC Acadia costs approximately $1,920 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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