This 2026 GMC Sierra 2500HD Denali Ultimate delivers professional-grade capability with refined luxury, engineered to handle demanding work while providing the comfort and technology you expect from a premium pickup truck.

- Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission and 4WD
- Gooseneck/5th Wheel Prep Package with hitch platform and 7-pin trailer harness
- Hitch Package with gooseneck ball and chain tiedown kit
- HD Surround Vision with multiple camera provisions for complete situational awareness
- 16-Way Power Driver Seat Adjuster with lumbar support and heated/ventilated function
- 16-Way Power Passenger Seat Adjuster with lumbar support
- Bose Premium Series 12-Speaker System with SiriusXM 360L satellite radio
- Premium GMC Infotainment System with Apple CarPlay and Android Auto
- Multicolor 15 Diagonal Head-Up Display with performance metrics
- Automatic Emergency Braking with Forward Collision Alert and Front Pedestrian Braking
- Lane Departure Warning System with Rear Cross Traffic Alert
- Signature Denali Ultimate Grille in Vadar Chrome with LED cargo area lighting
- Heated steering wheel with full grain leather trim
- Power moonroof with power sliding rear window
- Ultrasonic front and rear park assist with trailer side blind zone alert

The powertrain combines proven diesel efficiency with modern transmission technology, delivering the torque and pulling power serious truck owners demand. The 2-speed active transfer case and off-road suspension with hill descent control provide genuine capability whether you're managing a job site or tackling challenging terrain.

Inside, the cabin reflects the Denali Ultimate's premium positioning. Full grain leather seating, genuine wood dashboard and door panel inserts, and heated rear outboard seats create an environment that rivals luxury sedans. The 16-way adjustable front seats with lumbar support and ventilation ensure comfort during extended drives, while the heated steering wheel and dual-zone automatic climate control attend to your needs in any weather.

Technology is integrated throughout this truck. The in-vehicle trailering system app, hitch guidance with hitch view, and trailer camera provisions make managing your load intuitive and safe. The premium GMC infotainment system with wireless phone projection and charging keeps you connected, while OnStar services and the emergency communication system provide peace of mind.

Safety features span active and passive systems. Automatic emergency braking, lane departure warning, rear cross traffic alert, and multiple airbags work together with electronic stability control and traction management to protect you and your passengers. The bed view camera with trailer camera provisions gives you clear visibility of your payload and towed equipment.

Practical dealer-installed upgrades enhance this truck's functionality. The cargo tie-down rings, MultiPro tailgate step lights, and body color wheel arch moldings add both utility and visual appeal. Premium floor liners with removable carpet inserts protect the cabin's interior, while the high idle switch supports efficient operation during extended idle periods.

This Sierra 2500HD Denali Ultimate represents the intersection of serious work capability and refined comfort—a truck built to excel whether you're managing professional responsibilities or enjoying the open road. We invite you to experience this vehicle firsthand and discover why it's the choice for discerning truck owners.