2020 GMC Sierra 1500 Crew Cab

AT4 Pickup 4D 5 3/4 ft

72,449 miles

This vehicle is no longer available

Why You’ll Love This Sierra 1500

The AT4 sits near the top of the Sierra 1500 lineup, landing above the SLT and below the Denali within GMC’s trim structure, and with its World's First Six-Function GMC MultiPro Tailgate, factory-installed 2-inch suspension lift, off-road tuned Rancho monotube shock absorbers, and leather-appointed heated and ventilated front seats, it blends confident capability with everyday comfort.

AT4 Premium Package

Originally valued at $2,855, this package adds Ultrasonic Front and Rear Park Assist, Lane Change Alert with Side Blind Zone Alert, a Bose 7-Speaker Sound System, and GMC Infotainment System with Navigation.

Duramax 3.0L Turbo-Diesel I6 Engine

A Duramax 3.0L Turbo-Diesel I6 engine, originally valued at $995, provides robust power and efficiency.

Power Sunroof

Bringing natural light and an open-air feel into the cabin, a power sunroof was originally valued at $995.

Dark Sky Metallic Paint

A deep, rich Dark Sky Metallic finish, originally valued at $495, enhances the vehicle's exterior appearance.

World's First Six-Function GMC MultiPro Tailgate

Provides six distinct functions, including a primary gate, load stop, full-width step and inner gate load stop for enhanced cargo management and access.

Factory-installed 2-inch suspension lift

Increases ground clearance and approach angle for improved off-road capability.

Efficient diesel torque

Delivers impressive 22/26 MPG (city/highway) and 460 lb-ft of torque through a 3.0L Duramax Turbo Diesel engine, 10-speed automatic transmission and 4WD, featuring Active Thermal Management.

Off-road tuned Rancho monotube shock absorbers

Delivers enhanced damping and control over rough terrain for a smoother ride and improved handling off-road.

Leather-appointed front heated and ventilated seats

Offers year-round comfort with heating for cold weather and ventilation for warmer days.

Adventure-ready engineering

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

2-speed AutoTrac transfer case

Provides seamless shifting between 2WD and 4WD modes, adapting to changing road conditions for optimal traction.

Automatic locking rear differential

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

Red vertical recovery hooks

Offers robust and easily accessible points for vehicle recovery in off-road scenarios.

Spray-on bedliner with AT4 logo

Protects the cargo bed from scratches, dents and corrosion and features the distinctive AT4 logo.

Heated steering wheel

Warms the steering wheel for added comfort in colder weather.

Integrated dual exhaust

Provides a distinctive exhaust note and contributes to the vehicle's rugged aesthetic.

LED headlamps and taillamps with signature C-shape lighting

Offers bright, efficient illumination and a distinctive lighting signature for enhanced visibility.

Hill Descent Control

Manages vehicle speed on steep declines, allowing for controlled descents without constant brake application.

Integrated trailer brake controller

Provides seamless control of electric trailer brakes, enhancing safety and stability when towing.

Heated rear outboard seats

Offers additional comfort for rear passengers during colder conditions.

StabiliTrak with Traction Control

Enhances vehicle stability and traction, helping to maintain control in challenging driving conditions.

Hill Start Assist

Prevents rolling backward when starting on uphill grades, providing added confidence.

18-inch machined aluminum wheels

Machined aluminum wheels provide a distinctive look and contribute to the vehicle's overall aesthetic.

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