New 2026 GMC Sierra 3500HD

Experience the 2026 GMC Sierra 3500HD AT4: a powerful diesel 4x4 crew cab pickup with advanced towing and off-road capabilities for demanding Canadian drivers.

Built to handle the toughest jobs, this Sierra 3500HD AT4 features a Duramax 6.6L turbo-diesel V8 engine delivering 470 hp and an impressive 975 lb-ft of torque. The 10-speed automatic transmission and locking limited-slip differential provide smooth, confident power delivery on any terrain. Equipped with four-wheel drive and off-road tires front and rear, it’s ready for rugged conditions.

The truck’s crew cab offers seating for five with heated and cooled leather bucket seats, power-adjustable driver and passenger seats with lumbar support, and seat memory for added comfort on long hauls. The AT4 Premium Plus Package adds a power sunroof, Technology Package, and Off-Road High Clearance step for convenience and style.

Towing is simplified with the Gooseneck/5th Wheel Prep Package, featuring a hitch platform and 7-pin trailer harness, plus trailer tire pressure monitoring sensors to keep you informed. Safety is comprehensive, including blind spot monitoring, front collision mitigation, lane departure warning, and adaptive cruise control.

Additional features like an aerial view display system, heated steering wheel, power folding mirrors, integrated tailgate step, and running boards enhance functionality and ease of use in all conditions.