About This GMC Sierra 1500 AT4

This 2023 GMC Sierra 1500 AT4 is finished in Summit White with a Jet Black/Kalahari interior, combining rugged off-road capability with premium comfort. Powered by a 3.0L Duramax Turbodiesel I6 paired with a 10-speed automatic transmission, it delivers strong torque, smooth performance, and excellent efficiency.

Built for both adventure and daily use, it features an upgraded suspension setup with FOX 2.5 shocks, Dirt King control arms, Deaver leaf springs, 17-inch Method wheels, and Toyo all-terrain tires for enhanced off-road capability. Additional highlights include the MultiPro tailgate and a hard rolling tonneau cover for added versatility.

Inside, the cabin offers leather seating, heated and ventilated front seats, heated rear seats, a large infotainment display with Apple CarPlay and Android Auto, and a premium Bose sound system. Well-equipped and capable, this AT4 delivers a strong balance of performance, technology, and everyday comfort.