What'S New In The 2025 Gmc Sierra Hd. Leading off the many 2025 changes is the addition of a new denali ultimate grade. We get a chance to attend the reveal for the new 2025 gmc sierra hd.
While one is the new denali. The mighty 2025 gmc sierra hd tows up to 36,000 pounds, and the model range varies from rugged to luxurious.