Vehicle Description

The 2026 GMC Sierra 2500HD AT4X represents serious capability paired with refined comfort, built to handle demanding work while delivering a commanding presence on the road.

- Duramax 6.6L V8 Turbodiesel engine with 10-Speed Automatic transmission and 4WD
- Gooseneck/5th Wheel Prep Package for heavy-duty towing applications
- Black Badging Package with gloss black door handles, grille, and GMC emblems
- Bose Premium Series 12-Speaker System with SiriusXM and 360L Trial Subscription
- Apple CarPlay and Android Auto integration with wireless phone projection
- 16-Way Power Driver and Passenger Seat Adjusters with lumbar support
- Full grain leather seat trim with heated and ventilated front seats
- Heated rear seats and rear seat center armrest
- Multicolor 15" Diagonal Head-Up Display for enhanced visibility
- Off-Road Suspension with 2-Speed Active Transfer Case and Hill Descent Control
- HD Surround Vision with Bed View Camera and trailer camera provisions
- Ultrasonic Front and Rear Park Assist with Hitch Guidance and Hitch View
- Automatic Emergency Braking, Forward Collision Alert, and Rear Cross Traffic Alert
- 18" Machined Aluminum wheels with high gloss black accents
- Wireless charging, power moonroof, and universal garage door remote

This truck is engineered for those who need genuine hauling prowess without compromise. The Duramax diesel engine delivers the torque and pulling capacity serious operators demand, while the 4WD system with off-road suspension handles challenging terrain with confidence. The gooseneck and fifth-wheel prep package positions this Sierra as a capable platform for heavy trailers and specialized equipment.

Inside, the AT4X cabin reflects GMC's commitment to driver comfort and control. The 16-way power seating with lumbar adjustment and premium leather keeps you supported during long hours, while the heated and ventilated front seats provide year-round comfort. The impressive Bose audio system combined with the large head-up display and wireless connectivity means your technology stays current and intuitive.

Safety and convenience features throughout demonstrate this truck's modern engineering. The HD surround vision system, trailer side blind zone alert, and automatic emergency braking give you confidence in any situation. Hitch guidance with dedicated trailer viewing software simplifies what used to be stressful maneuvering, while the in-vehicle trailering system app keeps you connected to your load.

The Coastal Dune exterior finish combines with the black badging package to create an commanding appearance that matches the truck's serious capability. The spray-on bed liner with GMC logo protects your cargo area while maintaining the professional look AT4X owners expect.

This 2026 Sierra 2500HD AT4X is ready to work and ready to impress. Whether you're managing a construction site, towing heavy equipment, or navigating remote terrain, this truck brings proven diesel reliability, thoughtful engineering, and genuine capability to every task. We invite you to visit our showroom and experience the command this truck offers.