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Price Drop

2021 GMC Sierra 2500 HD Crew Cab

AT4 Pickup 4D 6 1/2 ft
90,143 miles
Includes:$19,455 in factory upgrades

Why You’ll Love This Sierra 2500

Slotted above the SLT and below the Denali in the Sierra 2500 HD lineup, the AT4 elevates everyday usability with the GMC MultiPro Tailgate, enhances off-road capability with an automatic locking rear differential, and adds comfort with heated and ventilated front seats.

AT4 Premium Plus Package

Originally valued at $6,975, this package includes HD Surround Vision, Automatic Emergency Braking, Lane Change Alert, a power sunroof, Bose Premium 7 Speaker Sound System, and a 15-inch Head-Up Display for safety and comfort.

Gooseneck/5th Wheel Package

Originally valued at $795, this package provides a Gooseneck/5th Wheel Prep Package and a Bed View Camera with two trailer camera provisions, simplifying heavy-duty towing and monitoring.

Duramax 6.6L Turbo-Diesel V8 Engine

Originally valued at $9,890, this engine delivers substantial power and torque for demanding tasks, ensuring robust performance for towing and hauling.

Power-Retractable Black Assist Steps

Originally valued at $1,895, these assist steps automatically extend for convenient entry and exit, then retract for a clean profile.

Ebony Twilight Metallic paint

Originally valued at $495, this finish provides a deep, rich metallic black color that adds a sophisticated and distinctive appearance.

Serious towing power

Provides immense 18,500 lbs towing capacity and 910 lb-ft of torque through its 6.6L Duramax Turbo Diesel V8 engine, Allison 10-speed automatic transmission, and 4WD, enhanced by a dual path air induction system and intelligent diesel exhaust brake.

GMC MultiPro tailgate

Offers six distinct functions, transforming into a standing workstation, load stop, or easy access step, enhancing versatility for various tasks.

AT4 off-road capability

The AT4 trim is engineered for serious off-road performance and rugged styling, ready for challenging terrain.

Traction select system

Optimizes vehicle performance for specific conditions with dedicated off-road and tow/haul modes, providing enhanced control and capability.

Automatic locking rear differential

Engages automatically when wheel slip is detected, providing maximum traction in challenging off-road or low-grip situations.

Heated and ventilated front seats

Provides year-round comfort with heating for cold weather and ventilation for warmer days, ensuring a pleasant driving experience.

Wireless smartphone integration

Seamlessly integrates your smartphone for navigation, music, and communication without the need for cables, keeping you connected on the go.

Safety alert seat

Provides haptic feedback through the driver's seat cushion to alert of potential hazards, offering a discreet and effective warning system.

High-intensity LED lighting

Illuminates the road and surrounding areas with bright LED headlamps, taillamps, fog lamps, wheel arch lamps and cargo bed lamps for enhanced visibility and modern style.

Heated leather-wrapped steering wheel

Warms your hands in colder weather for comfortable driving.

Heated second-row outboard seats

Offers additional comfort for rear passengers in cold conditions.

Red vertical recovery hooks

Provides robust and visible anchor points for vehicle recovery in off-road situations.

Digital variable steering assist

Enhances steering feel and responsiveness, making maneuvering easier at low speeds and more stable at highway speeds.

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