The 2025 GMC Sierra 2500HD Denali delivers premium capability and refined comfort, engineered for those who demand both strength and sophistication in their work truck.
- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque
- 4WD with 2-Speed Active Transfer Case
- Denali Reserve Package with power sunroof
- Gooseneck/5th Wheel Prep Package with hitch platform
- Multicolor 15 Diagonal Head-Up Display
- HD Surround Vision with Bed View Camera
- Premium Bose 7-Speaker Sound System with SiriusXM 360L
- Power-Retractable Assist Steps with LED perimeter lighting
- 12-Way Power Driver and Passenger Seats with lumbar support
- Heated and ventilated front seats with heated rear seats
- Wireless Charging and Wireless Phone Projection
- Automatic Emergency Braking with Front Pedestrian Braking
- Trailer Side Blind Zone Alert and Hitch Guidance with Hitch View
- Deep-tinted glass with rain-sensing wipers
- Off-Road Suspension with Hill Descent Control
This Denali showcases striking black exterior finish paired with premium Onyx Black interior appointments. The truck features Forge Perforated Leather-Appointed Front Seat Trim, genuine wood dashboard and door panel inserts, and signature chrome Denali styling throughout. The front bucket seats provide exceptional comfort with multiple adjustment options, while the heated rear seats ensure passenger comfort in all conditions.
Advanced technology is seamlessly integrated throughout the cabin. The premium GMC Infotainment System supports Apple CarPlay and Android Auto connectivity, while the Head-Up Display keeps critical information within your line of sight. The In-Vehicle Trailering System App provides intuitive towing management, and the Hitch Guidance with Hitch View makes backing up trailers more manageable. Safety features include Lane Departure Warning, Rear Cross Traffic Alert, and a comprehensive airbag system.
The truck bed is equipped with a spray-on bedliner featuring the GMC logo, 120-volt power outlets, and an LED cargo area lighting system. The Preferred Equipment Group 5SA and X31 Off-Road Package enhance both capability and functionality for demanding terrain and work environments.
Under the hood, the Duramax diesel engine pairs with a 10-speed automatic transmission, a 220-amp alternator, and an engine block heater for reliable performance in any condition. The heavy-duty suspension and four-wheel disc brakes provide confident handling whether towing or navigating challenging landscapes.
This Sierra 2500HD Denali represents a command of the road with meticulous attention to detail and capability that matches its refined presentation. We invite you to experience the truck's commanding presence and exceptional build quality in person at our showroom.

