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.

- Power-retractable assist steps with LED perimeter lighting and bright accent
- Duramax 6.6L V8 turbodiesel engine with 470 hp and 975 lb-ft of torque
- Denali Reserve Package with Technology Package and power sunroof
- HD surround vision with bed view camera and trailer camera provisions
- Multicolor 15-inch diagonal head-up display
- Bose premium 7-speaker sound system with SiriusXM 360L trial subscription
- Apple CarPlay and Android Auto compatibility
- Heated and ventilated front seats with 12-way power adjustment and lumbar support
- Heated second row outboard seats
- Forge perforated leather-appointed front seat trim
- Automatic emergency braking with forward collision alert and front pedestrian braking
- Trailer side blind zone alert and rear cross traffic alert
- 20-inch ultra bright machined alloy wheels
- Spray-on pickup bedliner with GMC logo
- Engine block heater and 220-amp alternator

The 2026 GMC Sierra 2500HD Denali arrives in striking Glacier White Tricoat, presenting a commanding presence on every road. This heavy-duty truck combines Professional Grade capability with refined luxury, making it equally at home on the job site or commanding attention in town. The off-road suspension and 2-speed active transfer case provide capable handling across varied terrain, while the exhaust brake adds practical control for towing and descending grades.

Inside, the Denali Reserve Package delivers comfort and connectivity. The 15-inch head-up display keeps critical information in your line of sight, while the wireless charging pad and multiple USB ports ensure your devices stay powered. The heated steering wheel and ventilated front seats with lumbar support create an environment tailored for long drives, and the power sunroof adds an open-air dimension to your driving experience.

Technology throughout this truck serves both convenience and safety. Automatic high-beam headlights adapt to changing conditions, rain-sensing wipers respond to weather, and the in-vehicle trailering system app provides command over your towing setup. The ultrasonic front and rear park assist, combined with HD surround vision, gives you complete awareness of your surroundings, while the buckle to drive feature and safety alert seat promote protective habits.

The Duramax diesel engine delivers the torque and capability expected from a Sierra 2500HD, backed by features like the engine block heater for reliable cold-weather starts. Hill descent control and trailer side blind zone alert add another layer of control and confidence when navigating challenging conditions. Whether you're managing a demanding workload or exploring the open road, this truck is engineered to perform.

We invite you to visit our showroom to experience the 2026 GMC Sierra 2500HD Denali firsthand and discover why this truck represents the pinnacle of professional-grade performance 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.