2020 GMC Sierra 1500 Crew Cab

AT4 Pickup 4D 5 3/4 ft

58,191 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 factory-installed 2-inch suspension lift, off-road tuned Rancho monotube shock absorbers, the World's First Six-Function GMC MultiPro Tailgate, and a 2-speed AutoTrac transfer case, it blends confident trail capability with everyday comfort.

AT4 Premium Package

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

Technology Package

Originally valued at $2,125, this package integrates advanced driver assistance with HD Surround Vision, a Multicolor 15-inch Head-Up Display, Bed View Camera, and a Rear Camera Mirror.

Driver Alert Package II

Originally valued at $1,095, this package enhances safety with Forward Collision Alert, Lane Keep Assist with Lane Departure Warning, Front Pedestrian Braking, Automatic Emergency Braking, and Adaptive Cruise Control.

6.2L EcoTec3 V8 engine

Originally valued at $2,495, this engine provides robust power and performance for demanding tasks and spirited driving.

Power sunroof

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

Black off-road accessory assist step

Originally valued at $965, the black off-road accessory assist step provides a sturdy and convenient entry point into the elevated cabin.

Satin steel metallic paint

Originally valued at $495, the satin steel metallic paint adds a sophisticated and modern finish to the exterior.

Powerful V8 performance

Unleashes 420 HP and 460 lb-ft through a 6.2L V8 engine, 10-speed automatic transmission and 4WD, enhanced by Dynamic Fuel Management for responsive power.

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.

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.

Traction Select System with Off-Road mode

Allows selection of different drive modes to optimize performance for various terrains and conditions.

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 appearance and contribute to the vehicle's overall performance and handling.

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