Experience unmatched capability and refined comfort with the 2026 GMC Sierra 2500HD AT4, designed for those who demand power, precision, and advanced technology on every journey.

Built to conquer the toughest tasks, the Sierra 2500HD AT4 boasts a robust 8-cylinder engine paired with a 10-speed automatic transmission and a 4x4 drivetrain, delivering exceptional towing and hauling performance. Its locking limited-slip differential and off-road tires ensure confident traction whether on rugged trails or challenging work sites. The integrated tailgate step and running boards provide easy access to the bed, which is protected by a durable liner, making loading and unloading effortless.

Inside, the crew cab offers premium leather bucket seats with heating, cooling, and power adjustments, including lumbar support and memory settings for driver and passenger, ensuring comfort during long drives. Advanced safety features such as blind spot monitoring, front collision mitigation, lane departure warning, and cross-traffic alert keep you secure in all conditions. The aerial view display system and rear parking aid enhance manoeuvrability in tight spaces.

Stay connected and in control with adaptive cruise control, navigation, Bluetooth integration, and a premium sound system. The heated steering wheel, heated mirrors, and remote engine start add convenience and comfort tailored to Canadian weather. The Sierra 2500HD AT4 is engineered to meet the demands of professionals who require strength, technology, and comfort in one commanding package.