Used 2025 GMC Sierra 1500 AT4

The 2025 GMC Sierra 1500 AT4 blends premium comfort, aggressive off-road styling, and serious V8 capability into one bold full-size pickup. Engineered for drivers who demand rugged performance without giving up refinement, this AT4 stands out with advanced technology, upscale features, and trail-ready confidence. Whether tackling backcountry terrain, towing with ease, or cruising through the city, the Sierra AT4 delivers strength, versatility, and unmistakable GMC presence. 

Performance & Capability 

• Engine: Powerful 6.2L ECOTEC3 V8 delivering impressive horsepower, responsive acceleration, and confident towing capability  

• Transmission: Smooth-shifting 10-speed automatic transmission with Electronic Precision Shift  

• Drivetrain: Advanced Autotrac 4-Wheel Drive (4WD) system for enhanced traction across changing terrain  

• Suspension: Factory Off-Road Suspension Package tuned for capability, comfort, and control  

• Rear Differential: Automatic locking rear differential for added traction in challenging conditions  

• Transfer Case: Autotrac two-speed transfer case for low-range off-road confidence  

• Off-Road Features: Hill Descent Control, skid plates, and red front recovery hooks for trail-ready durability  

• Trailering Equipment: Integrated trailer brake controller, hitch guidance with Hitch View, trailer camera provisions, and in-vehicle trailering app  

• Active Exhaust System adding a bold performance-inspired sound  

• FlexRide Drive Mode System allowing optimized performance in varying road and weather conditions  

Winter & Weather Comfort 

• Heated & Ventilated Front Seats for year-round driving comfort  

• Heated Rear Outboard Seats for second-row passenger luxury  

• Heated Steering Wheel for added cold-weather convenience  

• Remote Vehicle Start allowing cabin pre-conditioning before you step inside  

• Dual-Zone Automatic Climate Control maintaining personalized comfort for driver and passenger  

• Rain-Sensing Windshield Wipers automatically adapting to changing weather conditions  

• Engine Block Heater for dependable winter starts  

• Deep Tinted Glass helping reduce glare and maintain cabin comfort  

Interior Comfort & Convenience 

• Premium Front Bucket Seats with power driver and passenger adjustments  

• Driver Memory Settings for personalized seating and mirror preferences  

• Power Sliding Rear Window enhancing airflow and convenience  

• Wireless Charging Pad keeping compatible devices powered without cables  

• Power Tilt & Telescopic Steering Column for customizable comfort  

• Rear Seat Storage Package providing practical hidden cargo organization  

• Wireless Apple CarPlay® & Android Auto™ integration for seamless smartphone connectivity  

• GMC Premium Infotainment System with expansive 13.4" touchscreen and Google Built-In compatibility  

• 12" Digital Driver Information Centre with customizable vehicle information displays 

• Bose® Premium Audio System delivering rich, immersive sound quality  

• Multiple USB ports and 120V AC power outlets for passengers, devices, and worksite tools  

• Power Sunroof bringing natural light and an open-air feel to the cabin  

Safety & Driver Assistance 

• GMC Pro Safety Package enhancing confidence behind the wheel  

• Forward Collision Alert with Automatic Emergency Braking  

• Lane Keep Assist with Lane Departure Warning helping maintain proper lane positioning  

• Adaptive Cruise Control for more relaxed highway travel  

• HD Surround Vision providing a full 360-degree exterior camera view  

• Rear Cross Traffic Braking and Rear Pedestrian Alert for improved awareness while reversing  

• Trailer Side Blind Zone Alert assisting during towing maneuvers  

• Front & Rear Park Assist for easier parking and tight-space maneuvering  

• Following Distance Indicator and Front Pedestrian Braking for added driver awareness  

• Multicolor 15" Head-Up Display projecting key driving information directly onto the windshield  

• Rear Camera Mirror and Bed View Camera improving visibility while towing or hauling  

Exterior Styling & Utility 

• Exterior Colour: Summit White — bold, clean, and timeless with rugged AT4 character  

• 20" Machined Aluminum Wheels with Carbon Grey Metallic accents for an aggressive premium appearance  

• LED Fog Lamps and signature lighting enhancing visibility and road presence  

• GMC MultiPro Tailgate offering versatile loading, step access, and cargo management functionality  

• Spray-On Bedliner protecting the cargo box from scratches and wear  

• LED Cargo Bed Lighting for improved visibility after dark  

• Off-Road High Clearance Assist Steps providing easier cabin access without compromising capability  

• Perimeter Lighting adding convenience and visibility at night  

• Rear Bumper CornerSteps simplifying bed access  

• Blacked-out and body-coloured AT4 accents creating a bold off-road-inspired appearance  

Whether you’re towing heavy equipment, exploring rugged trails, or driving through everyday life in comfort, the 2025 GMC Sierra 1500 AT4 delivers premium capability, advanced technology, and unmistakable off-road attitude. Combining refined craftsmanship with powerful V8 performance, this Sierra AT4 is built for drivers who expect their truck to handle everything and look exceptional doing it.