2024 Denali 2024 Hd. The first ever sierra hd at4x and at4x aev edition is taking the at4 experience to the next level. 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 models.

For the 2024 model year, gmc has increased the sierra hd’s maximum towing capability, but in a surprising place. Explore the 2025 gmc sierra 2500 hd & 3500 hd denali luxury truck.