2026 GMC Sierra 1500 AT4

Experience the power and refinement of the 2026 GMC Sierra 1500 AT4 Crew Cab 4WD, designed for those who demand capability and comfort in every drive.

The Sierra 1500 AT4 is equipped with a robust Duramax 3.0L Turbo-Diesel I6 engine delivering 305 horsepower and an impressive 495 lb-ft of torque, perfect for towing heavy loads or tackling rugged terrain with confidence. Its advanced 10-speed automatic transmission with dual shift mode ensures smooth and responsive performance, while the 4x4 drivetrain and locking limited-slip differential provide exceptional traction in all conditions. Inside, the cabin offers premium leather seats with heating and cooling functions, plus power-adjustable lumbar support for both driver and passenger, ensuring comfort on long hauls or daily commutes. The integrated tailgate step enhances accessibility, making loading and unloading effortless. Safety is paramount with features like automatic high beams, blind spot monitoring, lane keeping assist, and front collision mitigation, giving you peace of mind on every journey. Technology is seamlessly integrated through an aerial view display system, adaptive cruise control, a premium sound system, and a navigation system with smart device integration and WiFi hotspot capability. Finished in striking Summit White and riding on durable aluminum wheels, this truck combines rugged capability with sophisticated style tailored for the Canadian driver who values power, safety, and innovation.