Skip to main content

2020 GMC Sierra 2500 HD Crew Cab

AT4 Pickup 4D 6 1/2 ft
105,463 miles
Includes:$20,525 in factory upgrades

Another customer started purchasing this vehicle

Sign up to be notified when it’s available.

Why You’ll Love This Sierra 2500

Slotted between the SLT and Denali trims in the Sierra 2500 HD lineup, the AT4 brings true off-road readiness with an off-road suspension featuring Rancho shocks and everyday versatility from the six-function GMC MultiPro Tailgate. Inside, heated and ventilated leather front bucket seats elevate comfort on long hauls and daily drives alike.

AT4 Premium Package

Originally valued at $2,715, this package offers Ultrasonic Front/Rear Park Assist, Lane Change Alert with Side Blind Zone Alert, Bose Premium Sound System, Wireless Charging, and GMC Infotainment with Navigation.

Technology Package

Originally valued at $2,125, this package offers an 8-inch Multicolor Driver Instrument Info Display, HD Surround Vision, a Multicolor 15-inch Diagonal Head-Up Display, and a Rear Camera Mirror.

Driver Alert Package II

Originally valued at $645, this package provides Forward Collision Alert, Following Distance Indicator, Automatic Emergency Braking, a Safety Alert Seat, and Lane Departure Warning.

Duramax 6.6L Turbo-Diesel V8 Engine

Originally valued at $9,890, this engine delivers substantial power and torque for demanding tasks and heavy hauling.

20-inch high gloss black painted wheels

Originally valued at $2,995, these wheels provide a distinctive and aggressive aesthetic to the vehicle's profile.

Power sunroof

Originally valued at $995, the power sunroof opens the cabin to natural light and fresh air with a simple touch.

Off-road assist steps

Originally valued at $965, off-road assist steps facilitate convenient entry and exit while offering additional side protection for rugged terrain.

Heavy-duty diesel power

Delivers immense 18,500 lbs towing capacity through the 6.6L Duramax Turbo Diesel V8 engine, Allison 10-speed automatic transmission and 4WD, supported by a Dual Path Air Induction System and an Intelligent Diesel Exhaust Brake system.

Multicolor 15" diagonal Head-Up Display

Projects key vehicle information, including an Off-Road Inclinometer, directly onto the windshield, allowing drivers to keep their eyes on the road or trail.

Up to 15 camera views

Offers a comprehensive view of the surroundings with up to 15 camera views, including Surround View and Transparent Trailer View, for enhanced safety and maneuvering.

Off-road suspension

Rancho shocks enhance damping and control over rugged terrain, improving ride quality and capability with the specialized off-road suspension.

World's First Six-Function GMC MultiPro Tailgate

This innovative tailgate offers versatile configurations for easier loading, accessing and working, providing unmatched utility for various tasks.

Heated and ventilated 10-way power front leather-appointed bucket seats

Personalized comfort is delivered through heated and ventilated 10-way power front leather-appointed bucket seats, enhancing the driving experience in various weather conditions.

Off-road ready engineering

The AT4 trim is purpose-built for challenging terrain, combining heavy-duty capability with advanced off-road features.

Eaton automatic locking rear differential

Automatically engages to provide maximum traction when wheel slip is detected, improving off-road capability.

Power-folding/-extending vertical trailering mirrors

Mirrors with auto-dimming upper glass and perimeter lighting enhance visibility and convenience when towing, making navigation easier.

Traction Select System with Off-Road mode

Optimizes vehicle performance for different driving surfaces, providing enhanced control and confidence.

Spray-on bedliner with AT4 logo

Protects the truck bed from scratches and impacts.

Advanced high-intensity LED headlamps

Provide bright, clear illumination for improved nighttime visibility.

Heated and leather-wrapped steering wheel

Offers a comfortable grip and warmth in colder climates.

Integrated trailer brake controller

Provides precise control over trailer braking.

Heated rear outboard seats

Offer added comfort for rear passengers in colder weather.

Red vertical recovery hooks

Provide accessible and robust points for vehicle recovery.

Side bed step

Provides easier access to the truck bed.

Hitch guidance

Assists with precise trailer alignment.

High definition rear vision camera

Provides a clear view behind the vehicle.

This content is AI-generated and some details may not be 100% accurate. Refer to the details throughout this page for specific vehicle info.

Looking for specific vehicle info?