The 2025 Sierra 1500 AT4 and AT4X full-size trucks redefine premium off-roading, featuring Dynamic Fuel Management, a 3.0L Duramax® Turbo-Diesel engine, and more.

AT4X takes the spirit of AT4 to even higher peaks, delivering extreme off-road capability without compromise. GMC is building on the AT4 legacy with the first ever Sierra HD AT4X and AT4X …

The First Ever AT4X (available Spring 2022) takes that AT4 ethos and elevates it to the next level, delivering advanced off-road capability and an interior experience that is nothing short of …

With rugged off-road technological innovations and a host of available accessories, GMC AT4 off-road trucks are dying to be taken off the beaten path. Discover how GMC AT4 pickup trucks …

Introducing the next generation 2025 GMC Canyon AT4 and AT4X, featuring an off-road suspension package, advanced hill descent control, and underbody cameras.

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.

The 2024 Sierra 1500 AT4 and AT4X are the peak of premium off-roading with Dynamic Fuel Management, a 3.0L Duramax® Turbo-Diesel engine, Off-road Suspension, and more.

Rise to the call of adventure in the GMC AT4 and AT4X lineup. Ruggedly styled and packed with tech-savvy and intuitive advanced features, AT4 is adventure-ready and engineered for action.

See what happens when GMC takes the rugged capability and premium appointments of the Canyon AT4 and creates a concept pickup — ready for extended adventures in remote …

The Canyon AT4X is more than just an average off-roading pickup — it’s raising the bar in factory-installed off-roading capability. The Canyon AT4X boasts a high-torque, off-road-optimized …