2025 Gmc Sierra Denali 2025. Discover the 2025 gmc sierra 2500hd & 3500hd denali and the first ever denali ultimate, with 30,800 lbs max towing, premium comfort, and more. The denali trim moves to second place in the sierra hd’s hierarchy for the 2025 model year with the introduction of the new denali ultimate trim, available for both.

Information about the 2025 gmc sierra, including introduction date, changes, specifications, pictures and other details about the 2025 sierra pickup truck. In the following gm authority breakdown, we’re taking a closer look at the 2025 gmc sierra 1500 towing capacities with ball hitch and gooseneck configurations.