Experience the rugged capability and refined comfort of the 2026 GMC Sierra 1500 AT4, designed for drivers who demand power, technology, and off-road readiness in every journey.

The Sierra 1500 AT4 in Coastal Dune commands attention with its bold styling and durable body-colour wheel arch mouldings, complemented by Goodyear Wrangler Territory MT tires built for on and off-road performance. Under the hood, the Duramax 3.0L Turbo-Diesel I6 delivers an impressive 305 horsepower and 495 lb-ft of torque, paired with a smooth 10-speed automatic transmission featuring electronic precision shift and paddle shifters for confident control. The advanced 4x4 drivetrain with locking limited-slip differential ensures traction in the toughest conditions, while the integrated tow hitch and bed liner make hauling gear effortless.

Inside, premium leather bucket seats with heating, cooling, and adjustable lumbar support provide personalised comfort on every drive. The cabin’s Jet Black and Kalahari interior is enhanced by a multicolour 15-inch head-up display and a rear camera mirror, offering critical information and visibility without distraction. Off-road high clearance steps and running boards add practicality, while safety technologies like blind spot monitoring, lane keeping assist, and front collision mitigation keep you secure on and off the beaten path. For those who demand capability and sophistication, the Sierra 1500 AT4 is built to perform.