2021 GMC Sierra AT4

2022 GMC Sierra 1500 AT4 Information


The GMC Sierra 1500 is the lineup's most popular pickup. The Sierra 1500's second-highest model configuration is the AT4, which combines impressive performance capabilities with a bold design and innovative technology. Flowery Branch drivers can come see the new GMC Sierra 1500 AT4 when they visit Jim Ellis Buick GMC Mall of Georgia.

Main Highlights to the GMC Sierra 1500 AT4 Pickup

  • World's First Six-Function Multi-Pro Tailgate
  • More Cargo Volume Than Any Truck Competitor: 71.7 Cubic Feet
  • 420 Horsepower and 460 Pound-Feet of Torque
  • 9,200-Pound Maximum Towing Capacity
  • Class-Leading 15 Available Camera Views
  • Standard 2" Factory Installed Lift
  • First-In-Class Available 15" Head-Up Display & Rear Camera Mirror
  • Industry-First Available Carbon-Fiber Composite Bed

GMC Sierra 1500 AT4 Performance

Duluth drivers get their top choice between two efficient, responsive, and powerful powertrains. The GMC Sierra 1500 has five powertrains total, but the AT4 truck model offers two of the most exciting engines.

A robust and fuel-efficient Duramax® 3.0-liter turbodiesel engine produces 277 horsepower and 460 pound-feet of torque while earning 22/26 (city/highway) miles per gallon. The AT4 can also come equipped with the 6.2-liter V8 engine that produces 420 horsepower and 460 pound-feet of torque while earning 15/19 miles per gallon.

The GMC Sierra 1500 AT4, which has a maximum payload rating of 2,140 pounds, is equipped with standard four-wheel drive and an off-road suspension.

GMC Sierra 1500 AT4 Technology

The GMC ProGrade™ Trailering system is available and includes a transparent trailer view, Jack Knife Alert, and 15 camera angles. Also available is the 15-inch Head-Up Display, which projects key information onto your AT4's windshield. Available camera views optimize viewpoints around the truck and compatible trailers.

The AT4 truck model comes with Hill Descent Control and In-Vehicle trailering app. The GMC Infotainment System features an intuitive interface with quick response time and exceptional voice recognition. Lawrenceville drivers get their pick between a multicolor 7-inch or 8-inch diagonal touchscreen that's paired with Apple CarPlay® and Android Auto™. Wireless Phone Projection, Navigation, and a Wi-Fi hotspot are available.

GMC Sierra 1500 AT4 Design

The GMC Sierra 1500 offers three cab choices: Crew Cab, Double Cab and Regular Cab. The GMC Sierra 1500 AT4 is a Crew Cab model that offers Flowery Branch motorists a short bed (69.9 inches) or a standard box (79.4 inches). The AT4 offers Atlanta drivers 10.88 inches of ground clearance, seating for five passengers, and 71.7 cubic feet of cargo volume.

The GMC Sierra 1500 AT4 has distinguished details. The truck's high, confident stance and bold grille finished in black chrome add sophistication to Sierra AT4's off-road capability. There are skid plates and red recovery hooks on the exterior while the athletic and purposeful interior offers dual-zone climate control and heated and ventilated front seats. The AT4's cabin is designed for your active lifestyle with exclusive darkened trim and decor, leather appointment and smart storage.

All Available GMC Sierra 1500 Trim Levels

  • GMC Sierra 1500 SLE
  • GMC Sierra 1500 Elevation
  • GMC Sierra 1500 SLT
  • GMC Sierra 1500 AT4
  • GMC Sierra 1500 Denali

Test Drive the Performance-Driven GMC Sierra 1500 AT4 Around Buford, GA

As Lawrenceville drivers can see, there's lots to love about the new GMC Sierra 1500 AT4. This top-tier full-size truck is available to test drive at Jim Ellis Buick GMC Mall of Georgia in Buford.

Speak with A Jim Ellis Representative

  1. Jim Ellis Buick GMC Mall Of Georgia

    3600 BUFORD Dr
    BUFORD, GA 30519

    • Sales: 770-927-7011
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