The 3.0L Duramax Turbo-Diesel engine offers incredible power, capability and efficiency. It features Active Thermal Management to help maintain an ideal engine temperature and an electrically controlled, variable-geometry turbocharger that helps enable responsive acceleration.
AT4 offers powerful capability engineered to take on off-road obstacles and the tough backcountry.
Both Sierra AT4 and AT4X come with Hill Descent Control, an antilock braking feature engineered to help provide a smooth, controlled descent on steep declines.
Grille with black chrome header and insert bars with gloss-black accents and red recovery hooks.*
Available off-road MT tires help you confidently conquer the backcountry in your AT4 — even in harsh conditions.
The AEV stamped boron steel front approach skid plate offers the AT4X enhanced protection for off-roading.
AT4X features a luxurious, athletic and purposeful interior designed to let you explore beyond the boundaries in ultra-premium style and comfort.
A reconfigurable 13.4" diagonal color touchscreen provides a seamless way to access, manage and customize your favorite in-vehicle entertainment.
Navigate tight trails and maneuver a trailer with confidence, using up to 14 camera views.
The Remote Access Plan gives you remote control of your properly equipped vehicle and unlocks a variety of great features in your myGMC mobile app.
Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:
Blind Zone Steering Assist can provide a brief, firm turn of the steering wheel when a potential collision is detected with a moving vehicle in the lane you’re entering.
Rear Park Assist* can provide distance alerts to nearby detected objects behind your vehicle to help you park and avoid collisions when you’re in Reverse at low speeds.
Following Distance Indicator displays the gap time in seconds between your vehicle and a detected vehicle you’re following. This can help you decide if you’re following much too closely.