Used 2022 GMC Sierra 3500HD AT4

The 2022 GMC Sierra 3500HD AT4 Crew Cab 4WD is built for those who demand uncompromising power, premium comfort, and off-road capability in one rugged package. Combining the legendary Duramax diesel engine, advanced trailering technology, and exclusive AT4 styling, this heavy-duty pickup is equally at home on the jobsite, towing massive loads, or exploring beyond the pavement. With luxurious appointments and professional-grade capability, the Sierra 3500HD AT4 delivers confidence wherever the road, or trail, takes you. 

Performance & Capability 

• Engine: Duramax® 6.6L V8 Turbo-Diesel delivering exceptional torque and heavy-duty towing capability 

• Transmission: Allison® 10-Speed Automatic Transmission engineered for smooth, intelligent shifting under load 

• Drivetrain: Autotrac® Two-Speed 4WD Transfer Case for confident traction in challenging conditions 

• Rear Axle Ratio: 3.42 rear axle optimized for towing strength and highway efficiency 

• Off-Road Suspension Package tuned for enhanced control on rough terrain 

• Automatic Locking Rear Differential maximizing traction when conditions demand it 

• Hill Descent Control for greater confidence on steep grades 

• Skid Plates helping protect critical underbody components during off-road adventures 

• Heavy-Duty Transmission Oil Cooler and Engine Oil Cooling System for sustained performance 

• Integrated Exhaust Brake enhancing control while towing or descending steep hills 

• Advanced Trailering System with in-vehicle trailer management features 

• Gooseneck / 5th-Wheel Prep Package with factory-installed provisions for serious towing capability 

• Integrated Trailer Brake Controller and Trailering Assist Guidelines 

• Hitch Guidance with Hitch View for easier trailer hookup 

Winter & Weather Comfort 

• Heated and Ventilated Front Seats providing year-round comfort 

• Heated Rear Outboard Seats for second-row passenger convenience 

• Heated Steering Wheel for cold-weather driving comfort 

• Remote Vehicle Start allowing the cabin to warm up before departure 

• Tri-Zone Automatic Climate Control for personalized comfort throughout the cabin 

• Engine Block Heater for reliable cold-weather starts 

• Heated Power-Adjustable Trailering Mirrors with Auto-Dimming Function 

• Rear Window Defroster improving visibility in winter conditions 

• Winter Grille Cover helping maintain optimal engine temperatures in colder climates 

Interior Comfort & Convenience 

• Front Bucket Seats with Premium AT4 Interior Design and Kalahari Accents 

• 10-Way Power Driver Seat and 8-Way Power Front Passenger Seat 

• Driver Memory Settings for seat and mirror preferences 

• Power Sliding Rear Window for added ventilation and convenience 

• Rear Seat Storage Package maximizing interior utility 

• Leather-Wrapped Steering Wheel for a premium feel 

• Keyless Open and Push-Button Start for effortless entry and operation 

• Wireless Charging Pad for compatible mobile devices 

• Multiple USB Ports and Auxiliary Power Outlets throughout the cabin 

• 120V Instrument Panel Power Outlet and Bed-Mounted 120V Power Outlet 

• Power Sunroof providing an open-air driving experience 

• Premium Floor Liners helping protect the interior year-round 

• Spacious Crew Cab configuration offering generous room for passengers and gear 

Technology & Connectivity 

• GMC Premium Infotainment System with Navigation 

• Wireless Apple CarPlay® and Wireless Android Auto™ Compatibility 

• Bluetooth® Audio Streaming and Voice Recognition Technology 

• Bose® Premium Audio System delivering rich, immersive sound 

• Enhanced Digital Driver Information Centre with customizable displays 

• Head-Up Display projecting key driving information onto the windshield 

• Rear Camera Mirror providing an expanded rearward view 

• Wi-Fi Hotspot Capability for connectivity on the go 

• Universal Home Remote for added convenience 

Safety & Driver Assistance 

• Forward Collision Alert with Automatic Emergency Braking 

• Lane Departure Warning helping maintain lane awareness 

• Lane Change Alert with Side Blind Zone Alert 

• Rear Cross Traffic Alert for enhanced confidence while reversing 

• HD Surround Vision with Trailer Camera Provisions 

• Bed View Camera simplifying cargo and trailer monitoring 

• Following Distance Indicator for improved awareness 

• Safety Alert Seat providing directional warning feedback 

• Front and Rear Park Assist 

• IntelliBeam® Automatic High-Beam Headlamps 

• Teen Driver Technology promoting responsible driving habits 

• Tire Pressure Monitoring System and Comprehensive Airbag Protection 

Exterior Styling & Utility 

• AT4 Exclusive Exterior Styling with aggressive off-road character 

• Exterior Colour: Pacific Blue Metallic — bold, distinctive, and premium 

• 20-Inch Machined Aluminum Wheels with High-Gloss Black Accents 

• All-Terrain Tires designed for capability on and off the road 

• Signature LED Headlamps and LED Front Fog Lamps 

• LED Roof Marker Lamps enhancing visibility and presence 

• LED Cargo Box Lighting for improved nighttime functionality 

• GMC MultiPro Tailgate offering multiple loading and access configurations 

• Spray-On Bedliner providing durable cargo box protection 

• Power Retractable Assist Steps with Perimeter Lighting 

• Red Front Recovery Hooks emphasizing AT4 off-road capability 

• Rear Wheelhouse Liners helping protect the cargo box from debris 

• Deep-Tinted Rear Glass adding privacy and style 

Whether you're hauling heavy equipment, towing a large fifth-wheel trailer, or venturing off the beaten path, the 2022 GMC Sierra 3500HD AT4 delivers relentless diesel power, premium technology, and rugged capability without compromise. It's a heavy-duty truck built for those who demand professional-grade performance with luxury, confidence, and unmistakable AT4 attitude.