Gmc 2025 2500hd Denali India. View detailed specs, features and options for the 2025 gmc sierra 2500hd 4wd crew cab 159 denali at u.s. Detailed specs and features for the 2025 gmc sierra 2500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,.

It is available in both 2wd as well 4wd drivetrain variants. Adaptive cruise control with trailering assist, previously standard on the 2025 at4x and denali ultimate trim levels, now comes on the at4 and denali trims as well.