The factory-installed 2-inch suspension lift gives you the ground clearance you want when heading off-road, while Rancho® monotube shock absorbers are off-road tuned to help smooth out rough terrain.
Sierra AT4 comes standard with four-wheel drive and a 2-speed AutoTrac transfer case that includes low-range four-wheel-drive gearing that handles a variety of off-road conditions.
This cargo box accommodates your active lifestyle with the functionality and strength to load and haul heavy toys and cargo.
Outside, the stance is bold, and inside the larger proportions help give you the added confidence of sitting higher. You can also stretch out with class-leading max front head and leg room in the Sierra AT4 Crew Cab.
Larger rear-door openings and more rear-seat leg room than previous Sierra models make your passengers feel comfortable with rear vents and heated rear outboard seats keep them that way for the long haul.
On the road or off, you want to stay plugged in. With six USB ports, you and your passengers can charge up and keep going.
Keep the charging cords at home. When you’re on the road in GMC Sierra AT4, the wireless charging pad located in easy reach near the cupholders, keeps your compatible smartphone charged and ready.
Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:
Provides side-mirror alerts to the driver when a detected vehicle is moving in, or rapidly approaching their side blind zone during a lane-change maneuver.
When in Reverse, the driver can view the scene directly behind the vehicle on the infotainment screen, to help the driver park and avoid nearby objects during low-speed maneuvering.