The GMC Sierra LD AT4X gives you the capability and comfort to conquer the great outdoors in style. From its 6.2L V8 engine with 420 hp and 623 Nm. of torque to its 16-way power front massage seats and refined interior, the AT4X is designed for an enhanced off-road experience. The GMC Sierra LD Denali Ultimate offers impeccable craftsmanship with its Ultimate Alpine Umber interior, signature Denali Vader Chrome grille and 12-speaker Bose^®§ Premium Series with Centerpoint^® Surround Sound. Engineered for adventure and luxury. 

Not only is it the first HD in its class with available Allison^® 10-speed transmission, Head-Up Display, and Rear Camera Mirror^§, but it also boasts best-in-class HD cargo bed volume and the available world’s first six-function MultiPro Tailgate^§. Plus, best-in-class crew cab front head and leg room and an industry-first available transparent trailer view^§, proving once again that the Sierra HD comes loaded with purposeful design and functionality.