2024 Gmc Sierra Denali Ultimate 2024 Hd Denali. The 2024 gmc sierra hd denali ultimate, refreshed for the 2024 model year, is gmc's most premium, luxurious and technologically advanced truck yet. Read on for more details about what’s new and different.

As with other new gmc models, the sierra hd picks up a new denali ultimate trim. 2024 gmc sierra 2500 and 3500 hd first look: