Experience commanding power and advanced technology in the 2026 GMC Sierra 2500HD AT4X Crew Cab, designed for those who demand capability and comfort in every drive.

This robust diesel-powered truck features a turbocharged 8-cylinder engine paired with a smooth 10-speed automatic transmission and four-wheel drive, ensuring exceptional performance on any terrain. The AT4X trim adds rugged style with Onyx Black exterior, aluminum wheels, and power retractable running boards for easy access. A bed liner and integrated tailgate step enhance utility, while conventional spare tire readiness keeps you prepared.

Inside, the Sierra 2500HD offers premium comfort with leather bucket seats that include heating, cooling, adjustable lumbar support, and even a seat-massage function for the driver. Both front seats are power-adjustable with memory settings, complemented by heated rear seats and a pass-through rear bench. The leather steering wheel is heated and features audio controls for convenience.

Safety is comprehensive, featuring automatic high beams, blind spot monitoring, cross-traffic alert, lane departure warning, front collision mitigation and warning, stability and traction control, and multiple airbags. Technology enhances awareness with an aerial view display system, heads-up display, back-up camera, adaptive cruise control, and keyless start. Tow hooks, a tow hitch, and locking limited-slip differential ensure this truck is ready for serious work and adventure.