2024 Denali Hd Features. — 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. — gmc has just updated the sierra hd for the 2024 model year.
— now, we’re getting our first look at the refreshed 2024 gmc sierra hd denali out in the real world with the following gm authority photos. Detailed specs and features for the 2024 gmc sierra 2500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine.