Meet the 2025 GMC Sierra 2500HD Denali, a truck engineered for those who demand capability without compromise. This Denali model combines premium features with serious work performance, designed to handle demanding tasks while delivering the comfort and technology today's drivers expect.
- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque
- 10-speed automatic transmission with 4WD
- Denali Reserve Package with Technology Package and power sunroof
- Gooseneck/5th wheel prep package for serious towing applications
- Premium Bose 7-speaker sound system with SiriusXM 360L
- Multicolor 15-inch head-up display for enhanced visibility
- HD surround vision camera system with trailer camera provisions
- 12-way power driver and passenger seats with lumbar support and heating/ventilation
- Forge perforated leather-appointed front seat trim
- Wireless charging and wireless phone projection
- Power sunroof with automatic open/close
- 20-inch ultra bright machined alloy wheels
- Ultrasonic front and rear park assist with hitch guidance
- Lane departure warning, forward collision alert, and automatic emergency braking
- Engine block heater and 220-amp alternator for reliability in all conditions
The Duramax engine in this truck provides impressive power and torque, backed by a heavy-duty transmission built for both highway driving and challenging work conditions. The 4WD system with 2-speed active transfer case and off-road suspension gives you confidence on any terrain. An exhaust brake helps control descent on steep grades, while hill descent control provides additional security.
Inside, the Denali Reserve Package elevates your daily driving experience. The 12-way power-adjustable front seats feature lumbar support and heating and ventilation, ensuring comfort on long drives. Genuine wood accents on the dashboard and door panels add refinement. The power sunroof brings natural light and openness to the cabin, while the multicolor head-up display keeps critical information visible without glancing down.
Technology keeps you connected and in control. The premium infotainment system integrates Apple CarPlay and Android Auto, while SiriusXM 360L satellite radio provides entertainment options wherever you travel. The HD surround vision camera system shows a 360-degree view of your truck, and the bed view camera with trailer viewing software makes towing safer and more manageable. Wireless phone projection and charging add convenience to daily use.
Safety features are comprehensive throughout the truck. Automatic emergency braking, forward collision alert, and lane departure warning work together to help prevent accidents. Rear cross traffic alert and trailer side blind zone alert provide additional awareness when reversing or maneuvering. The ultrasonic park assist with hitch guidance simplifies parking and hitching, while the in-vehicle trailering system app gives you control right from your phone.
The gooseneck and 5th wheel prep package makes this truck ready for serious towing demands. The hitch platform accepts ball, gooseneck, or 5th wheel configurations, with stamped bed holes and a bed-mounted 7-pin harness already installed. This investment in capability means you're ready for whatever work or recreation comes next.
This 2025 GMC Sierra 2500HD Denali represents a serious commitment to quality, performance, and comfort. Come experience this truck firsthand our team looks forward to discussing how it meets your needs.