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2021 GMC Sierra 1500 Crew Cab
AT4 Pickup 4D 5 3/4 ft
98,750 miles
Includes:$10,725 in factory upgrades
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Why You’ll Love This Sierra 1500

Slotted between the SLT and Denali trims in the Sierra 1500 lineup, the AT4 equips this Crew Cab for confident everyday use with adventure-ready engineering, the versatile GMC MultiPro Tailgate, and High definition surround vision for clear parking and maneuvering.

AT4 Premium Package

Originally valued at $3,200, this package provides Front and Rear Park Assist, Rear Cross Traffic Alert, Lane Change Alert, a Bose 7-Speaker Sound System, and Wireless Charging.

Technology Package

Originally valued at $2,075, this package includes an 8" Driver Information Center, HD Surround Vision with Trailer Camera Provisions, a 15" Diagonal Head-Up Display, and a Rear Camera Mirror.

Driver Alert Package II

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

AT4 CarbonPro Edition

Originally valued at $1,070, this package features a CarbonPro carbon fiber composite bed for robust cargo capability, a MulitPro Audio System by Kicker and Black Dual Exhaust Tips.

Duramax 3.0L Turbo-Diesel I6 Engine

Originally valued at $995, this engine delivers substantial torque and efficiency for demanding tasks.

Power Sunroof

Originally valued at $995, this feature opens the cabin to natural light and fresh air with the touch of a button.

20-inch carbon gray painted aluminum wheels

Originally valued at $800, these 20-inch carbon gray painted aluminum wheels provide a distinctive appearance and sturdy foundation.

Onyx Black paint

Originally valued at $495, this Onyx Black paint finish provides a deep, rich color that enhances the vehicle's exterior.

Off-road suspension with Rancho shocks

Features an off-road suspension system with Rancho shocks, providing enhanced damping and control over rugged terrain.

GMC MultiPro tailgate

A versatile tailgate offers six distinct functions, simplifying loading, unloading and accessing the bed.

High-torque diesel power

Delivers substantial 460 lb-ft of torque through a 3.0 Liter turbo diesel 6-cylinder engine, a 10-speed automatic transmission and 4WD, providing strong towing and hauling capability.

Adventure-ready engineering

The AT4 trim is engineered for serious off-road capability, integrating specialized hardware and design for challenging terrain.

High definition surround vision

Provides a comprehensive 360-degree view around the vehicle, including provisions for two trailer-view cameras, assisting with parking and maneuvering.

Automatic locking rear differential

Engages automatically to provide maximum traction to both rear wheels when slippage is detected, enhancing off-road capability.

Heated and ventilated front seats

Front bucket seats are heated and ventilated for comfort in various weather conditions.

Bose premium audio system

The Bose premium audio system delivers a rich and immersive experience with a Richbass woofer.

Spray-on bedliner

A durable spray-on bedliner protects the truck bed from scratches and impacts and features an AT4 logo.

Lane change alert with side blind zone alert

Warns of vehicles in your blind zones and approaching rapidly from behind to assist with safer lane changes.

Wireless charging

Allows convenient charging of compatible smartphones without the need for cables.

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