The 2026 Sierra 1500 AT4 and AT4X full-size truck is build for off-road adventures, with front & rear electronic locking differentials, 2" suspension, and more.

Explore the 2026 GMC Sierra HD AT4 and AT4X off-road work truck equipped with off-road suspension with twin-tube shocks, prograde trailering tech, and more.

For those looking to push the boundaries in premium off-roading, GMC’s lineup of AT4X trucks and SUVs is off-road capable without compromising on innovative tech and first-class interiors.

Learn more about the power of the 2024 Sierra HD AT4X AEV Edition on GMC Life. Dive into the exclusive features and capabilities of this exceptional truck.

Discover the first-ever 2023 Sierra 1500 AT4X AEV Edition, taking AT4X to new heights and raising the bar for premium off-roading capability. Arriving early 2023.

GMC is expanding its lineup of rugged AT4X trucks with the first ever Sierra HD AT4X and AT4X AEV Edition, delivering extreme off-road capability without compromising on-road comfort, …

Explore the 2025 GMC Sierra HD AT4 and AT4X off-road work truck equipped with a 1.5" suspension lift, rancho shocks, HD surround vision, a standard 6.6L V8 Engine, & more.

TRUCKS SUVS ELECTRIC DENALI AT4 COMMERCIAL CANYON Starting At: $38,900 * SIERRA 1500 Starting At: $38,300 *

Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the …

Sierra 3500 Heavy Duty comes in 2WD and 4WD Crew Cab models with either a 6' 9" standard bed or an available 8' long bed. Long bed is available with a SRW or DRW configuration.