Experience the power and capability of the 2026 GMC Sierra 2500HD AT4 Crew Cab, designed for demanding work and confident off-road performance.

This robust 4x4 truck is powered by a turbocharged 8-cylinder diesel engine paired with a smooth 10-speed automatic transmission, delivering exceptional torque and towing capability. Its durable chassis features 4-wheel disc brakes with ABS, aluminum wheels, and a locking limited-slip differential to enhance traction and control in challenging conditions. The Sierra 2500HD AT4 is equipped with a tow hitch and integrated tow hooks, making it ready for heavy-duty hauling tasks.

Inside, the spacious crew cab offers premium leather bucket seats with heating and cooling functions, along with driver and passenger power adjustments and lumbar support. Seat memory adds convenience for multiple drivers. The cabin also includes a heated steering wheel and multi-zone climate control for comfort in all seasons.

Safety is prioritized with advanced features such as automatic high beams, blind spot monitoring, lane departure warning, front collision mitigation and warning, cross-traffic alert, and a comprehensive airbag system. An aerial view display system and back-up camera assist with manoeuvring, while keyless entry and remote engine start enhance everyday usability.

The exterior is finished in striking Onyx Black, complemented by running boards, a bed liner, integrated tailgate step, and a pickup bed tonneau cover for added utility and protection. This Sierra 2500HD AT4 is built to meet the needs of drivers who demand strength, safety, and comfort in one capable package.