New 2025 GMC Sierra 2500HD Denali

Description for 2025 GMC Sierra 2500HD Denali Truck

The 2025 GMC Sierra 2500HD Denali is designed for those seeking a heavy-duty truck with luxury-grade refinement, high-performance diesel capability, and extensive trailering technology. Powered by the Duramax 6.6L V8 Turbo-Diesel engine paired with a 10-speed automatic transmission, this 4WD crew cab delivers exceptional towing capacity, particularly when combined with the Gooseneck/5th Wheel Prep Package and advanced trailer camera systems. The 2-speed active transfer case and X31 Off-Road Package further enhance the vehicles ability to handle varied terrain and demanding conditions.

Inside the cabin, the Denali trim offers high-end features including Jet Black leather-appointed seating, a floor-mounted center console, and heated and ventilated front seats for added comfort in all climates. Second-row outboard passengers also benefit from heated seating. The power sunroof, rear sliding window with defogger, and ambient lighting contribute to a premium in-cabin experience.

Technology in the Sierra 2500HD Denali is highlighted by the 15-inch multicolor head-up display, HD Surround Vision system, and a Bose premium 7-speaker sound system. Wireless Apple CarPlay and Android Auto integration are standard, along with wireless charging and multiple USB ports for both data and charging. The truck includes a wide array of driver assistance features such as Trailer Side Blind Zone Alert, Rear Cross Traffic Alert, a Safety Alert Seat, Hill Descent Control, and Ultrasonic Front and Rear Park Assist.

With trailering in mind, this Denali is equipped with Trailer Cam Provisions, a Bed View Camera with dual trailer camera provisions, and Trailer Viewing Software to give drivers additional confidence when hauling. LED smoked amber roof marker lamps, LED cargo area lighting, and the spray-on bedliner with GMC branding support both visibility and durability in cargo areas. Chrome accents including the signature Denali grille and polished exhaust tip give the exterior a refined, recognizable finish.

Convenience features include keyless open and start, a remote vehicle starter system, push-button ignition, and a universal home remote. The Denali Reserve Package and Technology Package further enhance the overall capability and comfort.

As with every new vehicle purchase at Walt Massey, the 2025 GMC Sierra 2500HD Denali is backed by the Walt Massey 3 Day Money Back Guarantee. If you return the vehicle to the dealership in like-new condition within three business days of purchasehaving driven it fewer than 300 milesyou may exchange it without penalty. Should you exceed the 300-mile limit, a $1.00 per mile fee will apply beyond that threshold. This policy is designed to provide added peace of mind and customer satisfaction.
Not all rebates may apply. Some rebates are not compatible with other rebates. Offers are subject to change. See dealer for details. Price includes: $1000 - GM Bonus Cash. Exp. 06/02/2025 $500 - GM Military Cash Allowance Program. Exp. 01/02/2026