2026 GMC Sierra 2500

The 2026 GMC Sierra 2500HD Denali represents serious capability paired with refined comfort, engineered for those who demand both performance and sophistication from their truck.- Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission- 4WD with 2-Speed Active Transfer Case and off-road suspension- Adaptive Cruise Control with Following Distance Alert- Automatic Emergency Braking and Lane Keep Assist- Premium Bose 7-speaker sound system with SiriusXM- Wireless Apple CarPlay and Android Auto integration- Cooled and heated front seats with 12-way power adjustments- Heated steering wheel and heated rear seats- Premium leather appointments with genuine wood trim- HD Surround Vision with bed view camera and trailer camera provisions- Multicolor 15-inch head-up display- Power sunroof and power rear sliding window- Remote vehicle start and keyless open and start- Running boards and spray-on bed liner with GMC logo- Gooseneck/5th wheel prep package and technology package includedThis Denali comes equipped with the Duramax diesel engine, a proven powerplant that delivers consistent torque and efficiency for heavy-duty work. The turbodiesel pairs seamlessly with the 10-speed automatic transmission, offering smooth power delivery whether you're navigating city streets or handling demanding hauling tasks. Four-wheel drive with an active transfer case gives you the control needed for varied terrain and weather conditions.Inside, you'll find a command center designed for the professional who appreciates quality. The 12-way power driver and passenger seats with lumbar support keep you comfortable during long drives, while ventilated and heated options ensure year-round comfort. The heated steering wheel and rear seats extend that comfort throughout the cabin. Genuine wood dashboard and door panel inserts, combined with Forge perforated leather, create an atmosphere that transcends typical truck interiors.Technology integration is straightforward and functional. The premium GMC infotainment system pairs with wireless Apple CarPlay and Android Auto, keeping you connected without complicated wiring. A wireless charging port handles compatible devices, and the multicolor 15-inch head-up display keeps critical information visible without distraction. The in-vehicle trailering system app and hitch guidance with hitch view take guesswork out of towing operations.Safety features work actively to protect you and your passengers. Automatic emergency braking, lane keep assist, and blind spot alert systems provide multiple layers of awareness. The adaptive cruise control with following distance alert reduces fatigue on highway drives, while rear cross traffic alert and ultrasonic front and rear park assist make maneuvering easier. HD surround vision gives you a complete view around the truck.The Sierra 2500HD is built for the Sierra 2500HD work, and this Denali trim doesn't compromise on capability to deliver comfort. The off-road suspension handles rough terrain, while the exhaust brake provides engine braking for controlled descents. An engine block heater and winter grille cover prepare you for cold weather operation. The gooseneck and fifth-wheel prep package, along with the towing package, position this truck for serious hauling responsibilities.This is a vehicle for those who understand that a truck should work as hard as you do while providing the refinement and technology you've earned.