Used 2024 GMC Sierra 2500HD AT4

The 2024 GMC Sierra 2500HD AT4 is a commanding heavy-duty truck that blends extreme capability, premium craftsmanship, and off-road confidence. Built for those who demand uncompromising strength without sacrificing refinement, the AT4 stands tall with aggressive styling, advanced trailering technology, and luxurious comfort, ready for the toughest jobs and boldest adventures. 

Performance & Capability 

• Engine: Duramax® 6.6L V8 Turbo Diesel delivering immense torque and proven heavy-duty performance 

• Transmission: Allison® 10-speed automatic transmission engineered for strength, smooth shifting, and towing confidence 

• Drivetrain: Autotrac® 4-Wheel Drive with two-speed transfer case for commanding traction on any terrain 

• Axle Ratio: 3.42 rear axle optimized for heavy towing and load management 

• Off-Road Hardware: Skid plates, automatic locking rear differential, and hill descent control for rugged terrain 

• Suspension: AT4 off-road suspension tuned for stability, control, and durability 

Trailering & Work-Ready Strength 

• Max Trailering Capability with gooseneck/5th wheel prep package 

• Integrated Trailer Brake Controller and Hitch Guidance with Hitch View 

• In-Vehicle Trailering App for real-time trailer status and diagnostics 

• Trailer Side Blind Zone Alert and Trailer Camera Provisions for enhanced visibility 

• Engine Exhaust Brake and heavy-duty cooling systems for confident downhill control 

• MultiPro™ Tailgate offering six functional positions for loading, work, and access 

Winter & All-Weather Comfort 

• Heated & Ventilated Front Seats for year-round comfort 

• Heated Rear Outboard Seats and Heated Steering Wheel for cold-weather drives 

• Dual-Zone Automatic Climate Control maintaining personalized cabin temperatures 

• Remote Vehicle Start and Push-Button Start for added convenience 

• Engine Block Heater and Winter Grille Cover for dependable cold-weather operation 

• Premium All-Weather Floor Liners for rugged interior protection 

Interior Comfort & Convenience 

• Premium Leather-Appointed Front Bucket Seats with power adjustment and memory settings 

• Power Sliding Rear Window and Rear Seat Storage Package for added versatility 

• Wireless Charging Pad and multiple USB ports throughout the cabin 

• Power Sunroof bringing natural light and open-air feel 

• Refined Jet Black/Kalahari interior with bold AT4 accents 

Technology & Connectivity 

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

• 12" Digital Driver Information Display with customizable views 

• Bose® Premium Audio System delivering rich, immersive sound 

• Head-Up Display projecting key driving and trailering data 

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

Safety & Driver Assistance 

• Sierra HD Pro Safety suite for enhanced driver confidence 

• Forward Collision Alert with Automatic Emergency Braking 

• Lane Departure Warning and Following Distance Indicator 

• Front & Rear Park Assist and HD Surround Vision for precision maneuvering 

• Rear Cross Traffic Alert and Front Pedestrian Braking 

• Teen Driver Mode and Buckle-to-Drive for added safety awareness 

Exterior Styling & Off-Road Presence 

• 20" Black Aluminum Wheels wrapped in all-terrain tires for aggressive capability 

• LED Headlamps, Fog Lamps, Roof Marker Lamps, and Cargo Bed Lighting 

• Red Front Recovery Hooks and High-Clearance AT4 steps for off-road readiness 

• Spray-On Bedliner and Bed-Mounted 120V Power Outlet for worksite practicality 

• Sterling Metallic exterior with bold AT4 detailing and muscular stance 

Whether you’re hauling heavy equipment, towing massive loads, or conquering off-road terrain, the 2024 GMC Sierra 2500HD AT4 delivers relentless strength, advanced technology, and premium refinement. It’s a heavy-duty truck built to dominate demanding jobs, and do it in unmistakable AT4 style.