2024 Denali Ultimate 2500. The 2024 gmc sierra hd denali ultimate, refreshed for the 2024 model year, is gmc's most premium, luxurious and technologically advanced truck yet. 2024 gmc sierra 2500 and 3500 hd first look:

Denali goes ultimate, at4x joins the ranks. The denali trim moves to second place in the sierra hd’s hierarchy for the 2024 model year with the introduction of the new denali ultimate trim, available for both the 2500 and 3500.