2024 Gmc At4 Hd Denali. View all 27 consumer vehicle reviews for the 2024 gmc sierra 2500hd on edmunds, or submit your own review of the 2024 sierra 2500hd. The powerful sierra 2500 hd has been updated for 2024, taking this model to new heights of luxury and capability.
Simply put, the at4 trim is designed for off. Not many extra options (5th wheel prep, bed mat, cover, etc.), it pretty much.