2021 GMC Sierra 1500 AT4

2021 GMC Sierra 1500 AT4 – Premium Off-Road Capability and Refined Comfort

Designed for drivers who demand rugged capability without sacrificing luxury, this 2021 GMC Sierra 1500 AT4 delivers impressive performance, advanced technology, and premium craftsmanship. Equipped with factory off-road enhancements, distinctive AT4 styling, and aggressive Goodyear Wrangler DuraTrac® all-terrain tires, this Sierra is ready for work, adventure, and everything in between.

Performance & Capability

• Powerful V8 engine delivering strong towing and hauling capability

• Automatic transmission for smooth, confident performance

• Four-wheel drive system for enhanced off-road confidence

• Factory AT4 off-road suspension with lifted ride height

• Automatic locking rear differential

• Hill Descent Control

• Off-road tuned shocks and suspension components

• Excellent towing and payload capability

AT4 Off-Road Features

• Goodyear Wrangler DuraTrac® all-terrain tires

• Factory suspension lift

• Skid plates for underbody protection

• Red front recovery hooks

• Off-road drive modes

• Heavy-duty trail-ready capability

• Enhanced traction and stability on challenging terrain

Exterior Features

• Bold white exterior finish

• Distinctive GMC AT4 grille design

• LED headlights, fog lights, and signature lighting

• Premium alloy wheels

• Spray-in bedliner capability

• MultiPro Tailgate functionality

• Power-folding heated mirrors

• Integrated corner steps in rear bumper

• Durable cargo bed designed for work and recreation

Interior Comfort & Convenience

• Premium leather-appointed seating

• Heated and ventilated front seats

• Power-adjustable front seats with memory settings

• Heated steering wheel

• Dual-zone automatic climate control

• Spacious crew cab interior

• Fold-up rear seating for expanded cargo flexibility

• Premium materials and AT4-exclusive interior accents

Technology & Connectivity

• GMC Infotainment System with touchscreen display

• Navigation capability

• Apple CarPlay® and Android Auto™ compatibility

• Bluetooth® hands-free calling and audio streaming

• Premium audio system

• Wireless charging capability

• USB ports throughout the cabin

• Remote start system

• Wi-Fi hotspot capability

Safety & Driver Assistance

• Rearview camera

• Front and rear parking sensors

• Lane Change Alert with Side Blind Zone Alert

• Rear Cross Traffic Alert

• Forward Collision Alert

• Lane Keep Assist

• Automatic Emergency Braking

• Electronic Stability Control

• Tire Pressure Monitoring System (TPMS)

Why You'll Love It

The 2021 GMC Sierra 1500 AT4 offers the perfect balance of premium luxury, advanced technology, and genuine off-road capability. Whether you're towing a trailer, exploring back roads, or commuting in comfort, the AT4 trim delivers confidence, versatility, and unmistakable GMC styling.

With its aggressive stance, upscale interior, and trail-ready equipment, this Sierra is built to perform wherever the road—or lack of road—takes you.

As a pre-owned vehicle, it may show normal cosmetic wear consistent with age and mileage.

All advertised prices exclude government fees and taxes, any finance charges, any dealer document preparation charges, and any emission testing charges. While we try to make sure that all prices posted here are accurate at all times, we cannot be responsible for typographical and other errors that may appear on the site. We make every effort to provide you with the most accurate, up-to-the-minute information; however, it is your responsibility to verify with the Dealer that all details listed are accurate. The dealership is not responsible for typographical, pricing, product information, advertising, or shipping errors. Advertised prices and available quantities are subject to change without notice. All rates and offers are dependent on bank approval, which varies based on the applicant's credit as well as the vehicle.