Meet the 2026 GMC Sierra 2500HD AT4, a white heavy-duty pickup engineered for those who demand capability and refinement in equal measure.
- Duramax 6.6L V8 Turbodiesel engine with 470 horsepower and 975 lb-ft of torque
- 10-Speed Automatic transmission with 4WD and 2-Speed Active Transfer Case
- X31 Off-Road Package with Hill Descent Control and off-road suspension
- Bose Premium 7-Speaker Sound System with SiriusXM and 360L Trial Subscription
- Preferred Equipment Group 4SB with premium amenities
- Heated and ventilated front seats with 10-way power adjustment and lumbar support
- Heated second row outboard seats for passenger comfort
- Bed View Camera with two trailer camera provisions and Trailer Side Blind Zone Alert
- HD Surround Vision and Ultrasonic Front and Rear Park Assist
- Wireless charging pad and wireless phone projection capability
- LED cargo area lighting with spray-on bedliner featuring GMC Logo
- Heated steering wheel and heated door mirrors
- 20-inch high gloss black aluminum wheels
- Automatic emergency braking and forward pedestrian braking
This Sierra 2500HD AT4 combines the working strength of its legendary diesel powertrain with thoughtful technology designed to enhance every drive. The Duramax engine delivers the torque needed for genuine heavy-duty applications, while the X31 Off-Road Package prepares you for challenging terrain with confidence. Inside, the cabin welcomes you with premium materials, including perforated leather-appointed seating with heating and ventilation throughout the front row and heated comfort for rear passengers.
The truck's technology suite keeps you informed and connected. Multiple USB ports, including charge-only rear ports and charge/data capability within the center console, ensure your devices stay powered. The Bed View Camera system transforms hitching and maneuvering trailers into a more controlled task, supported by trailer viewing software and dedicated camera provisions. Wireless phone projection integrates your smartphone seamlessly into the driving experience.
Safety remains paramount with advanced driver assistance features including Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, and Ultrasonic Park Assist working to protect you from all angles. The Safety Alert Seat provides tactile feedback to heighten your awareness of potential hazards. Hill Descent Control and the off-road-tuned suspension give you control whether you're descending steep grades or exploring unpaved paths.
The 120-volt power outletsâ"one bed-mounted and one on the instrument panelâ"power your tools and equipment directly from the truck. The spray-on bedliner preserves the bed while the LED cargo lighting illuminates your work area. Premium floor liners with removable carpet inserts protect the cabin while maintaining the luxury feel this truck deserves.
This white AT4 stands ready to serve you with the durability GMC is known for and the refinements you've come to expect. Whether your priorities are towing capability, off-road readiness, or simply commanding the road with style and substance, this Sierra 2500HD delivers on all fronts.
Visit us today to experience this truck firsthand and discuss how it fits your needs.
