New 2026 GMC Sierra 1500

Experience the 2026 GMC Sierra 1500 AT4 with Duramax Turbo-Diesel power, advanced off-road capability, and premium technology designed for drivers who demand performance and comfort.

This new Sierra 1500 AT4 is powered by a robust Duramax 3.0L Turbo-Diesel I6 engine delivering 305 horsepower and an impressive 495 lb-ft of torque, paired with a 10-speed automatic transmission featuring electronic precision shift and steering column paddle shifters. The 4x4 drivetrain with locking limited-slip differential enhances traction and control, while tow/haul mode and advanced braking systems provide confidence when towing heavy loads.

Built for rugged terrain, the AT4 Premium Package includes off-road high clearance steps and all-weather floor liners with the AT4 logo, ensuring durability and convenience. The exterior is finished in striking Onyx Black with integrated tailgate step, running boards, and aluminum wheels. Inside, heated and cooled leather bucket seats with power adjustments and memory functions offer exceptional comfort for five passengers.

Safety is paramount with features like blind spot monitoring, lane keeping assist, front collision mitigation, and an aerial view display system. The Technology Package adds a rear camera mirror and a vibrant 15-inch multicolour head-up display with bed view camera, keeping critical information within your line of sight. This Sierra 1500 AT4 is the ideal choice for those who require power, technology, and rugged style in one commanding package.