Used 2024 GMC Sierra 2500HD AT4

The 2024 GMC Sierra 2500HD AT4 is a true heavy-duty adventurer, combining rugged off-road capability, serious towing strength, and upscale comfort. Built to tackle work sites, backcountry trails, and long hauls with equal confidence, this Sierra HD AT4 is engineered for drivers who demand maximum capability without sacrificing refinement. 

Performance & Capability 

• Engine: Duramax 6.6L V8 Turbo Diesel delivering massive torque and strong hauling power 

• Transmission: Allison 10-speed automatic for smooth, durable shifting under load 

• Drivetrain: Four-wheel drive with Autotrac two-speed transfer case for exceptional traction in any condition 

• Suspension: AT4 off-road suspension with skid plates and rugged tuning for confident trail performance 

• Axle Ratio: 3.42 rear axle for optimized towing strength and acceleration 

• Heavy-Duty Springs: Reinforced front springs designed for hauling and stability 

• Trailer-Ready: Hitch guidance, trailer brake controller, and 7-pin harness with gooseneck/5th wheel prep for heavy towing 

Towing & Trailering 

• Trailering Equipment: Integrated trailering app and camera provisions for safer, easier hookups 

• Bed & Hitch Prep: Gooseneck/5th wheel package with stamped bed holes and caps 

• Tow Visibility: Hitch view and bed view camera for precise maneuvering 

• Trailer Safety: Trailer side blind zone alert, rear cross traffic alert, and rear camera mirror for maximum awareness 

Winter & Weather Comfort 

• Heated & Ventilated Front Seats to stay comfortable in all seasons 

• Heated 2nd Row Outboard Seats for passenger warmth on cold days 

• Heated Steering Wheel for added comfort during winter drives 

• Engine Block Heater for reliable starts in extreme cold 

• Dual-Zone Automatic Climate Control for personalized cabin comfort 

• Winter Grille Cover for cold-weather efficiency 

Interior Comfort & Convenience 

• Premium Seating: Front bucket seats with power driver and passenger adjustments plus memory settings 

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

• Power Sliding Rear Window for ventilation and quick access to the bed 

• Wireless Charging and multiple USB outlets for devices 

• Large 13.4" Infotainment Touchscreen with Google Built-In, navigation capability, and Wi-Fi hotspot 

• 12" Reconfigurable Digital Driver Display for customizable vehicle information 

• Head-Up Display (HUD) for essential data at a glance 

• Bose Premium Audio System for immersive sound on long drives 

• Spray-On Bedliner and LED cargo bed lighting for worksite practicality 

Safety & Driver Assistance 

• Sierra HD Pro Safety suite for confident driving 

• Forward Collision Alert & Automatic Emergency Braking for crash prevention 

• Lane Departure Warning & Lane Keep Assist to help keep you centered 

• Adaptive Cruise Control for smoother highway driving 

• Front and Rear Park Assist for tight parking situations 

• Rear Seat Reminder and Teen Driver Mode for added safety awareness 

• Red Front Recovery Hooks for serious off-road readiness 

Exterior Styling & Utility 

• 20" Black Aluminum Wheels with BF Goodrich T/A KO3 all-terrain tires for aggressive capability 

• AT4 Black Grille and Accents for a bold, rugged presence 

• LED Headlamps and Fog Lamps for maximum visibility 

• Black Assist Steps for easy cabin access 

• Black Front Recovery Hooks and skid plates for trail-ready durability 

• Body-Color Bumpers and bold AT4 styling for a commanding road presence 

Whether you’re towing a heavy trailer, exploring off-road trails, or working through the toughest conditions, the 2024 GMC Sierra 2500HD AT4 delivers unmatched strength, premium comfort, and uncompromising capability. It’s the perfect heavy-duty truck for drivers who want power, prestige, and rugged performance in one commanding package.