New 2025 Gmc Sierra Hd. Edit location 23917 switch model. 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.
The new and redesigned 2025 gmc sierra hd truck lineup makes its world debut. Gmc says that these new trucks are “the most advanced and luxurious in their class”.