Used 2023 GMC Sierra 1500 AT4

The 2023 GMC Sierra 1500 AT4 stands at the crossroads of rugged capability and premium refinement. Built for adventurers who expect luxury even in the toughest environments, the AT4 blends off-road strength, intelligent technology, and bold styling into one commanding, go-anywhere pickup. 

Performance & Capability 

• Engine: 6.2L ECOTEC3 V8 delivering commanding power, instant response, and strong low-end torque 

• Transmission: 10-Speed Automatic with Electronic Precision Shift for smooth, decisive gear changes 

• Drivetrain: Autotrac 4-Wheel Drive with a two-speed transfer case for confident performance on any terrain 

• Off-Road Readiness: AT4 Off-Road Suspension Package with skid plates, Hill Descent Control, and red front recovery hooks 

• Axle Ratio: 3.23 rear axle for a balanced combination of acceleration and towing muscle 

• Trailering Capability: Integrated trailer brake controller, Hitch Guidance with Hitch View, Trailer Side Blind Zone Alert & in-vehicle trailering app 

• Cooling & Durability: Heavy-duty engine and transmission cooling plus a high-capacity air filter for demanding off-road conditions 

• Drive Modes: FlexRide drive mode selector for tailored performance on trails, snow, and pavement 

• Tires & Wheels: 20" Machined Aluminum Wheels wrapped in all-terrain tires for grip and rugged style 

Winter & Weather Comfort 

• Heated Front Seats & Heated Rear Outboard Seats to keep everyone warm during harsh winters 

• Ventilated Front Seats for cool comfort during summer months 

• Heated Steering Wheel for instant cold-weather relief 

• Remote Start System to adjust cabin temperature before you step inside 

• Tri-Zone Automatic Climate Control for personalized comfort in all seating areas 

• Rear Window Defroster & RainSense Wipers for improved visibility 

• Premium All-Weather Floor Liners (with removable carpet inserts) to protect the cabin year-round 

Interior Comfort & Convenience 

• Front Bucket Seats with 10-way driver and 8-way passenger power adjust 

• Driver Memory Settings to recall seat and mirror preferences 

• Power Sliding Rear Window for airflow and cab convenience 

• Rear Seat Storage Package with clever hidden compartments 

• Keyless Open & Push-Button Start for seamless entry and ignition 

• Wireless Charging Pad plus USB-A/USB-C ports in all rows for device convenience 

• 13.4" GMC Premium Infotainment Touchscreen with Google Built-In and Navigation 

• 12" Digital Driver Information Centre offering customizable vehicle data 

• Bose Premium Audio System delivering rich, immersive sound 

• Tri-Zone Rear Vents ensuring comfort for all passengers 

Safety & Driver Assistance 

• GMC Pro Safety with Forward Collision Alert, Automatic Emergency Braking & Following Distance Indicator 

• Lane Keep Assist with Lane Departure Warning for added confidence on the highway 

• Adaptive Cruise Control for stress-free long-distance driving 

• HD Surround Vision providing a 360° camera view of the truck and surroundings 

• Rear Cross Traffic Braking & Rear Pedestrian Alert to protect in busy parking scenarios 

• Trailer Camera Provisions & Trailer Side Blind Zone Alert for safer, more confident towing 

• Front & Rear Park Assist to simplify tight-space maneuvering 

• Teen Driver Mode & Buckle-to-Drive to encourage safe habits for younger drivers 

Exterior Styling & Utility 

• Distinctive AT4 Design featuring bold black chrome accents, body-colour bumpers, and rugged athletic proportions 

• Sterling Metallic Exterior Paint with Jet Black/Kalahari interior accents 

• LED Front Fog Lamps, Cargo Bed Lighting & Perimeter Lighting for enhanced nighttime visibility 

• GMC MultiPro Tailgate with multiple configurations for loading, step access, or worksite versatility 

• Spray-On Bedliner and durable steel bed for long-lasting protection 

• 120-Volt Bed-Mounted Outlet for tools, gear, or campsite power 

• Rear CornerSteps & Wheelhouse Liners for practicality and durability 

• Active Front Grille Shutters optimizing aerodynamics and efficiency 

Whether conquering off-road trails, hauling heavy gear, or cruising the highway, the 2023 GMC Sierra 1500 AT4 delivers a powerful blend of capability, comfort, and premium craftsmanship. Built for those who push boundaries, it’s the truck that’s ready for every adventure—on-road or off.