Used 2025 GMC Sierra 1500 AT4

The 2025 GMC Sierra 1500 AT4 is engineered for those who live beyond the pavement, blending aggressive off-road capability with premium comfort and advanced technology. With its bold AT4 styling, factory-installed off-road hardware, and refined interior, this truck is equally at home on rugged trails or long highway drives. 

Performance & Capability 

• Duramax® 3.0L Turbo-Diesel engine delivering exceptional torque, smooth power delivery, and impressive long-distance efficiency 

• 10-speed automatic transmission providing confident acceleration and precise gear changes 

• Autotrac® two-speed 4-Wheel Drive system for optimal traction across mud, snow, gravel, and rock 

• 3.23 rear axle ratio balancing towing confidence with everyday drivability 

• Automatic locking rear differential for enhanced grip in challenging terrain 

• Integrated trailering equipment with trailer brake controller, hitch guidance, and trailering app 

• Engine block heater and heavy-duty air filtration for reliable performance in demanding environments 

Off-Road Readiness 

• AT4 off-road suspension package engineered for increased ground clearance and trail stability 

• Skid plates protecting key underbody components 

• Hill Descent Control for controlled confidence on steep or uneven terrain 

• Red front recovery hooks adding functionality and bold visual character 

• 20" machined aluminum wheels with carbon grey accents wrapped in aggressive tires 

Interior Comfort & Refinement 

• Premium Jet Black and Kalahari interior combining rugged design with upscale finishes 

• Front bucket seats with power adjustment, heating, and ventilation 

• Heated rear outboard seats and heated steering wheel for all-season comfort 

• Driver memory settings and power-adjustable steering column for a personalized driving position 

• Dual-zone automatic climate control with rear air vents 

• Power sliding rear window and rear seat storage package for added versatility 

Technology & Connectivity 

• 13.4" GMC Premium Infotainment touchscreen with Google Built-In and navigation capability 

• Wireless Apple CarPlay® and Android Auto™ integration 

• 12" reconfigurable digital driver information display 

• Bose® premium audio system delivering rich, immersive sound 

• Wireless charging pad plus multiple USB ports throughout the cabin 

• HD Surround Vision and rear camera technologies for enhanced visibility on and off the trail 

Safety & Driver Assistance 

• GMC Pro Safety suite providing advanced driver confidence 

• Forward Collision Alert with Automatic Emergency Braking 

• Lane Keep Assist with Lane Departure Warning 

• Adaptive Cruise Control for relaxed highway travel 

• Rear Cross Traffic Braking, Trailer Side Blind Zone Alert, and Rear Pedestrian Alert 

• Front and rear park assist with following distance indicator 

Exterior Styling & Utility 

• Bold AT4 grille and body-color bumpers paired with rugged design elements 

• Summit White exterior emphasizing the truck’s muscular, adventure-ready stance 

• GMC MultiPro™ Tailgate offering six functional configurations for loading and jobsite use 

• Spray-on bedliner with LED cargo bed lighting for durability and visibility 

• 120V power outlets in the cabin and cargo bed for tools and gear 

• Perimeter lighting and high-clearance off-road assist steps for confident access day or night 

Whether navigating backcountry trails, towing heavy gear, or cruising in comfort, the 2025 GMC Sierra 1500 AT4 delivers bold capability, advanced technology, and unmistakable presence. It’s a truck built for those who demand off-road strength with premium refinement, ready wherever the road ends.