Come see why driving a GMC isn't just transportation—it's an upgrade to everything you expect on the road.

- Duramax 6.6L V8 Turbodiesel with 470 hp and 975 lb-ft of torque
- AT4 Premium Plus Package with power sunroof and Technology Package
- Gooseneck/5th Wheel Prep Package for heavy hauling capability
- Power-retractable black assist steps with LED lighting
- 220-amp alternator and engine block heater for reliable cold-weather operation
- Bose Premium 7-Speaker Sound Sys

em with SiriusXM 360L
- Premium GMC Infotainment System with Apple CarPlay and Android Auto
- Multicolor 15" Head-Up Display and wireless phone projection
- HD Surround Vision with bed view camera and trailer camera provisions
- Heated and ventilated perforated leather front seats with 10-way power adjustment
- Power sunroof and heated rear seats
- Automatic emergency braking, forward collision alert, and front pedestrian braking
- Ultrasonic front and rear park assist with hitch guidance
- Off-road suspension with hill descent control and 2-speed active transfer case
- 20" high gloss black aluminum wheels with spray-on bedliner

The 2026 GMC Sierra 2500HD AT4 delivers serious capability with a turbodiesel engine engineered for both power and efficiency. Built with a heavy-duty foundation, this truck handles demanding work while maintaining the refined comfort you expect from GMC. The AT4 trim elevates the experience with off-road performance features, including an active transfer case and specialized suspension tuning designed to navigate challenging terrain with confidence.

Driver-focused technology makes every journey more connected and intuitive. The advanced infotainment system integrates seamlessly with your smartphone, while the head-up display keeps critical information visible without distraction. Safety features like automatic emergency braking, lane departure warning, and surround-view cameras work quietly in the background to help protect you and your passengers on every drive.

Comfort and convenience define the cab experience. Heated and ventilated leather seats with memory settings ensure personalized comfort for long hours behind the wheel. Dual-zone climate control, a power sunroof, and intuitive storage solutions create an environment where you want to spend time. The wireless charging pad and multiple USB ports keep your devices ready for the road.

This truck is built for towing and hauling. The gooseneck and fifth-wheel prep package provides the foundation for serious payload capacity, while trailer guidance technology and camera provisions simplify connection and viewing. The hitch platform, stamped bed holes, and seven-pin trailer harness demonstrate GMC's thoughtful engineering for those who depend on their truck.

Silver exterior paint over the AT4's commanding stance creates a distinctive presence that stands apart. Black power-retractable assist steps with integrated LED lighting add both function and aesthetics, while deep-tinted glass and body-color bumpers complete a cohesive design that works hard and looks professional.

At the end of the day, the right vehicle doesn't just get you where you're going—it changes how you feel getting there. That's exactly what GMC delivers. Smooth, stylish, and packed with features you'll appreciate every single drive.

Don't just take our word for it—come experience it for yourself. Stop by today, take a seat behind the wheel, and see why so many drivers are making the switch to GMC. Your next upgrade is waiting. Price includes all applicable rebates:$1000 - Buick & GMC Consumer Cash Program. Exp. 08/03/2026