2025 Gmc Sierra Denali Ultimate 2025 Hd Specs. Select a 2025 gmc sierra hd denali to view feature and capability specs on the official site. The new 2025 gmc sierra hd pickup truck pulls your world with turbocharged power and an impressive lineup of trims that includes the first ever denali ultimate.

View detailed specs, features and options for the 2025 gmc sierra 1500 4wd crew cab 147 denali ultimate at u.s. 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.