2024 Sierra 2500hd Pro Mpg. Gmc's heavy hauler, the sierra hd pickup with the diesel engine, is rated to tow up to 22,500 pounds conventionally or 36,000 with a gooseneck hitch fitted. Active safety features now standard.
Research the 2024 gmc sierra 2500 at cars.com and find specs, pricing, mpg, safety data, photos, videos, reviews and local inventory. 2024 gmc sierra 2500 hd mpg.