2021 GMC Yukon Xl

SUV Premium
GMC Yukon Xl 2021
23MPG Combined
10 Trims
2021 2022 →
Updated February 27, 2026

Get the full picture on the 2021 GMC Yukon Xl. As a SUV, it achieves 16–23 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 Yukon Xl Specifications

SpecValue
Combined MPG16–23 combined MPG depending on trim
City MPG21
Highway MPG27
Body StyleSUV
Fuel TypePremium
DriveRWD
Available Trims10

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto14/20/166.2L 8cylAutomatic 10-spd
Auto16/20/185.3L 8cylAutomatic 10-spd
Auto21/27/233.0L 6cylAutomatic 10-spd
Auto14/20/166.2L 8cylAutomatic 10-spd
Auto15/20/175.3L 8cylAutomatic 10-spd
Auto14/19/166.2L 8cylAutomatic 10-spd
Auto15/19/175.3L 8cylAutomatic 10-spd
Auto20/26/223.0L 6cylAutomatic 10-spd
Auto13/19/166.2L 8cylAutomatic 10-spd
Auto15/19/165.3L 8cylAutomatic 10-spd

Annual Fuel Cost

Based on EPA estimates, the 2021 GMC Yukon Xl costs approximately $2,990 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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