Experience commanding power and advanced technology in the 2026 GMC Sierra 2500HD AT4 Crew Cab, designed for rugged performance and refined comfort in Summit White.

This heavy-duty truck is equipped with a turbocharged 8-cylinder diesel engine paired with a smooth 10-speed automatic transmission and a 4x4 drivetrain, ensuring exceptional towing and off-road capability. The Sierra 2500HD AT4 features a locking limited-slip differential and integrated tow hooks, making it ready for demanding work or adventurous terrain. Its durable exterior includes a bed liner, integrated tailgate step, running boards, and aluminum wheels, all built to withstand tough conditions.

Inside, the cabin offers premium leather bucket seats with heating and cooling functions, along with power-adjustable driver and passenger seats featuring lumbar support and memory settings for personalized comfort. Rear passengers enjoy heated seating and a pass-through rear bench seat. The interior is equipped with an aerial view display system, adaptive cruise control, and a premium sound system to enhance every drive.

Safety is paramount with features like automatic high beams, blind spot monitoring, cross-traffic alert, front collision mitigation and warning, lane departure warning, and multiple airbags. Additional conveniences include keyless entry and start, power folding mirrors with heating, rain-sensing wipers, and a rear parking aid with back-up camera, making the Sierra 2500HD AT4 a capable and confident choice for demanding drivers.