The 2021 Sierra HD features thoughtful design inside and out. You’ll find features to enhance your workflow, and amenities to keep you comfortable along the way. With a rugged, muscular design, the Sierra HD looks made to work. Its bold exterior features the available, innovative MultiPro Tailgate, which offers six different configurations to simplify working with the truck bed. There is also a CornerStep® rear bumper, trailering mirrors, plus the best-in-class cargo bed volume.
Inside, the Sierra HD is crafted with high-end, premium materials and large, spacious seats. Stretch out in the elevated driver seat and the best-in-class Crew Cab front head and leg room.