Discover the latest lineup of new GMC trucks and SUVs at Red Rock GMC. From the rugged Sierra to the versatile Acadia and luxurious Yukon, you'll find Professional Grade capability, advanced technology, and exceptional comfort in every model. Our team is here to help you find the right GMC with a straightforward, hassle-free buying experience.

- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque
- 10-Speed Automatic transmission with 4WD
- Power-retractable assist steps with LED perimeter lighting
- Denali Reserve Package with Technology Package and power sunroof
- Off-Road Suspension with 2-Speed Active Transfer Case and Hill Descent Control
- HD Surround Vision with bed view camera and trailer camera provisions
- Multicolor 15" diagonal head-up display
- 12-way power driver and passenger seats with lumbar support and heating/ventilation
- Bose Premium 7-Speaker Sound System with SiriusXM 360L
- Apple CarPlay and Android Auto with wireless phone projection
- Automatic emergency braking, forward collision alert, and lane departure warning
- Heated and power-adjustable door mirrors with auto-dimming
- Spray-on pickup bedliner with GMC logo and signature chrome Denali grille
- 20" ultra bright machined alloy wheels
- Wireless charging and multiple USB ports

This 2026 Sierra 2500HD Denali delivers Professional Grade capability with the strength of the Duramax diesel engine and the refinement expected in a luxury truck. The advanced suspension package, combined with modern safety technologies like automatic emergency braking and surround vision cameras, provides confidence whether you're navigating city streets or tackling challenging terrain. The Denali Reserve Package elevates the experience with premium materials, heated leather seating for all front occupants, and a power sunroof that brings light and openness to the cabin.

Inside, technology integrates seamlessly with your lifestyle. The head-up display keeps essential information in your line of sight, while wireless charging and multiple connectivity options keep your devices ready. The Bose audio system delivers exceptional sound quality, and climate controls with dual-zone automatic temperature management ensure comfort for all passengers throughout the year.

The exterior commands attention with its pristine Glacier White Tricoat finish, signature chrome Denali grille, and LED lighting that frames the truck with style and function. Power-retractable assist steps with LED perimeter lighting provide both utility and visual appeal, while the spray-on bedliner protects your investment for years of work or weekend adventures.

This truck is equipped to handle what life demands. The engine block heater ensures reliable cold-weather starts, the exhaust brake adds control on descents, and the comprehensive suite of trailering features—including hitch guidance and in-vehicle trailering software—makes towing intuitive and secure. With 4-wheel disc brakes, stability control, and off-road capability, you're prepared for any condition.

We invite you to experience this remarkable truck firsthand. Visit our showroom to walk around the Sierra 2500HD Denali, sit behind the wheel, and feel the quality craftsmanship and attention to detail that defines the Denali line. Our team is ready to answer your questions and help you understand why this truck represents the perfect balance of capability, comfort, and luxury.

Select Shield includes a 3-month or 3,000-mile limited warranty on select vehicles, valid in all 50 states. New vehicles receive coverage beginning after the manufacturer's basic warranty ends. Excludes as-is, tax, tow, salvage, or lemon law vehicles. Vehicle information, options, and features may vary. Verify all details with the dealer. See dealer for complete details.