2021 GMC Sierra AT4 1500 – Crew Cab 4×4


Introduced on the 2019 Sierra, AT4 was created as a unique persona that offers credible capability while still providing premium everyday comforts. AT4 variants distinctively combine off-road capability, innovative technology and bold design, along with GMC’s premium refinement to practically complement an authentic outdoor lifestyle.

Core AT4 design includes premium rugged exterior details, featuring black chrome grille, fog light surrounds and rear appliques, as well as unique authentic aluminum interior decor and premium fabric colors. The response has been clear that AT4 is a winner with customers; Sierra sales were up 14% year-over-year in 2019, and AT4 played a huge role in that growth. Based on initial Sierra AT4 buyer data, they are adventurous, affluent, highly active and younger than the average light-duty full-size pickup truck buyer.

They are attracted to GMC’s premium features with a more aggressive, athletic design that provides the ability to go off-road with authentic capability. “AT4 continues GMC’s bold entrance into the premium, off-road and adventure- oriented truck and SUV space in 2021,” said Phil Brook, vice president of GMC Marketing. The 2021 GMC Sierra AT4 offers a 2-inch factory lift, skid plates, Rancho® monotube shocks, a standard MultiPro Tailgate, available Carbon Fiber Bed and available Mud-Terrain tires





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