Experience the 2026 GMC Sierra 2500HD AT4: a powerful diesel 4x4 crew cab truck designed for rugged performance and advanced safety on every terrain.

The Sierra 2500HD AT4 is equipped with a turbocharged 8-cylinder diesel engine paired with a smooth 10-speed automatic transmission, delivering exceptional towing capability and dependable power. Its 4-wheel drive system and locking limited-slip differential ensure confident handling in challenging conditions. The truck’s robust build includes aluminum wheels, 4-wheel disc brakes with ABS, tow hooks, and a tow hitch, ready for heavy-duty tasks.

Inside, enjoy premium comfort with leather bucket seats featuring heating, cooling, and adjustable lumbar support for both driver and passenger. Seat memory and power adjustments add convenience, while rear heated seats and a pass-through rear bench enhance passenger comfort. The cabin is thoughtfully equipped with multi-zone climate control, heated steering wheel, and an advanced Aerial View Display System for superior visibility.

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. Exterior highlights include a bed liner, integrated tailgate step, running boards, privacy glass, heated and power-folding mirrors with memory, fog lamps, and a conventional spare tire.

Designed for those who demand strength, comfort, and cutting-edge technology in a versatile pickup.