2024 Gmc Sierra 2500hd At4x Review. 2024 gmc sierra 2500hd review. The 2024 gmc sierra 2500 4wd crew cab at4x brings a delicious combination of comfort, style and brute force to market, for a price.
Sierra 2500hd at4x automatic emergency braking is standard. The 2024 gmc sierra 2500 hd at4x aev edition adds functional style from american expedition vehicles trove of aftermarket accessories in a production package.