New 2026 GMC Sierra 2500HD

Experience the power and capability of the 2026 GMC Sierra 2500HD AT4X in Coastal Dune, designed for demanding work and confident driving in all conditions.

This 4x4 crew cab pickup features a robust 6.6L V8 gasoline engine delivering 401 hp and 464 lb-ft of torque, paired with a smooth 10-speed automatic transmission for optimal performance. The Sierra 2500HD AT4X is equipped with a gooseneck/5th wheel prep package, including a hitch platform and bed-mounted 7-pin trailer harness, making it ready for heavy towing tasks. Its locking limited-slip differential enhances traction on challenging terrain, while tow hooks add extra utility.

Inside, enjoy premium comfort with heated and cooled leather bucket seats, power-adjustable driver and passenger seats with lumbar support, seat memory, and even a seat massage function. The crew cab offers seating for five, including heated rear seats and a pass-through rear bench. Convenience features like power retractable running boards, an integrated tailgate step, and a bed liner make loading and unloading easier.

Safety is comprehensive, featuring automatic high beams, blind spot monitoring, cross-traffic alert, front collision mitigation, lane departure warning, and a full suite of airbags. Additional tech includes an aerial view display system, heads-up display, adaptive cruise control, and a premium sound system, all designed to keep you informed and comfortable on every journey.