This 2015 GMC Sierra 2500HD Denali represents a premium heavy-duty truck designed for buyers who demand capability, comfort, and dependable performance in a work or lifestyle vehicle.

• Duramax 6.6L Turbodiesel V8 Engine with 397 Horsepower and 765 lb-ft of Torque


• Allison 1000 6-Speed Automatic Transmission with Tow/Haul Mode and Electronic Engine Grade Braking


• Power Sunroof with Heated Power-Adjustable Mirrors Featuring Integrated Turn Signal Indicators


• Heated and Cooled Leather Front Bucket Seats with Power Adjustment and Memory Settings


• Navigation System with AM/FM/SiriusXM Satellite Radio and 7-Speaker BOSE Sound System


• Bluetooth® Connectivity and Remote Vehicle Starter System


• Ultrasonic Front and Rear Park Assist with Rear Vision Camera and Dynamic Guide Lines


• OnStar 4G LTE Wi-Fi Hotspot with 6-Month Directions/Connections Plan


• Engine Block Heater and Exhaust Brake for Enhanced Control and Cold Weather Operation


• Heavy-Duty Trailering Equipment with 7-Way Wiring Provisions for Camper and Fifth-Wheel Trailers


• Dual-Zone Automatic Climate Control with Heated Steering Wheel


• LT265/70R18E All-Terrain Tires on 18-Inch Chrome Aluminum Wheels


• 4-Wheel Drive with Electronic Shift Transfer Case for All-Terrain Capability


• Full Suite of Safety Features Including Dual Front Impact Airbags, Side Airbags, and Overhead Airbags

The Denali trim level elevates this Sierra 2500HD with genuine luxury touches while maintaining the serious capability expected from GMC's heavy-duty platform. The combination of the Duramax turbodiesel engine and the Allison transmission delivers the torque and hauling power that define this truck's purpose, while the electronically controlled transmission adapts to changing driving conditions.

The heated and cooled leather seats, heated steering wheel, and automatic climate control ensure comfort during long drives. Practical features like the power sliding rear window, remote keyless entry, and power door mirrors streamline everyday use, while the backup camera system and parking assist technology enhance safety and convenience.

This truck's trailering capabilities are substantial. The 7-way wiring provisions, exhaust brake, and tow/haul transmission mode work together to give you confidence when pulling trailers. The all-terrain tires mounted on chrome wheels provide the premium appearance befitting the Denali designation while delivering the traction needed for various road conditions.

The Denali interior reflects the upscale positioning of this model. Perforated leather seat trim, dual-zone climate control, and the 8-inch multi-color driver information display create a refined cabin experience. The BOSE audio system delivers quality sound, while SiriusXM satellite radio and navigation integration keep you connected and oriented regardless of destination.

At 142,245 miles, this Sierra 2500HD has established its durability record. Well-maintained examples of this generation continue to perform reliably in both work and personal use roles. The Duramax diesel engine and Allison transmission combination is recognized throughout the industry for longevity when properly serviced.

This Denali model combines luxury appointments with genuine work truck capability. Whether you