Experience the 2026 GMC Sierra 2500HD AT4 in Summit White, designed for power, comfort, and advanced safety on every drive.

Built with a robust turbocharged 8-cylinder diesel engine paired with a 10-speed automatic transmission and four-wheel drive, this Sierra 2500HD AT4 delivers exceptional towing capability and off-road readiness. The locking limited-slip differential enhances traction in challenging conditions, while tow hooks and a tow hitch provide practical utility for heavy-duty tasks. Safety is paramount with features like automatic high beams, blind spot monitoring, lane departure warning, front collision mitigation and warning, cross-traffic alert, and multiple airbags including front, side, and rear head airbags. Stability and traction control systems further ensure confidence on the road.

Inside, the crew cab offers premium leather bucket seats with heating and cooling for front occupants, heated rear seats, and power-adjustable driver and passenger seats complete with lumbar support and memory settings. The interior is equipped with multi-zone climate control, an adaptive cruise control system, and a premium sound system. Convenience is enhanced by keyless entry and start, remote engine start, power folding heated mirrors with memory, and an aerial view display system. The exterior features running boards, an integrated tailgate step, a bed liner, and aluminum wheels, combining durability with style for demanding drivers.