2025 Denali Ultimate 2025 Release Date.  — gm has unveiled the refreshed 2025 gmc sierra hd, debuting fresh exterior styling, a new interior, a revised trim level lineup, powertrain updates, and more. Elevation, at4 and denali — all with distinctive exterior features.

Denali ultimate is added, and it adds a new level of luxury over the standard denali. Across the 2025 lineup, the acadia features new led headlamps and sleek black applique on the rear of the vehicle.