New or Significantly Altered Models

2021 GMC Yukon
All GM full-size SUVS are new for 2021 including the Yukon and longer wheelbase Yukon XL. Yukon models are larger in almost every dimension, gaining over 4 inches in wheelbase and more than 6 inches in overall length. The familiar 5.3l V8 (355-hp) returns and the 6.2l V8 (420-hp) is available on higher trim levels. The big news is the arrival of a more efficient 3.0l six-cylinder diesel engine with the same torque rating as the 6.2l. Pricing starts around $52,000 and increases based on trim level and powertrain.
2021 GMC Yukon XL
All GM full-size SUVS are new for 2021 including the Yukon and longer wheelbase Yukon XL. Yukon XL models are larger in almost every dimension, starting with an increase of over 4 inches in wheelbase. The familiar 5.3l V8 (355-hp) and 6.2l V8 (420-hp) engines return. They are joined by a more efficient 3.0l six-cylinder diesel engine with the same torque rating as the 6.2l. Pricing starts around $55,000 and increases based on trim level and powertrain.

Updated Models

2021 GMC Canyon Crew Cab
Trim levels have been renamed: Elevation Standard, Elevation, AT4 and Denali.
2021 GMC Canyon Extended Cab
Trim levels have been renamed: Elevation Standard, Elevation, AT4 and Denali.

Mostly Unchanged

2021 GMC Acadia
2021 GMC Savana Passenger
2021 GMC Sierra 1500 Crew Cab Std bed
Sierra Crew Cab models with the standard bed length are 4WD only.
2021 GMC Sierra 1500 Double Cab
SLT and AT4 trim levels dropped for double cab.
2021 GMC Sierra 1500 Regular Cab
2021 GMC Terrain
Optional 2.0l engine has been dropped.