New 2025 GMC Sierra 2500HD Denali

Description for 2025 GMC Sierra 2500HD Denali Crew Cab

The 2025 GMC Sierra 2500HD Denali is a heavy-duty truck designed to combine robust towing capabilities, off-road readiness, and high-end interior features. As part of the Denali trim lineup, it places a strong emphasis on luxury finishes and premium technology while maintaining the power and utility expected of a 2500HD model.

Under the hood, this Sierra is powered by the Duramax 6.6L V8 turbodiesel engine paired with a 10-speed automatic transmission. This powertrain delivers substantial torque for towing and hauling, and is matched with a 2-speed active transfer case and 4WD for confident traction across varied terrain. Its also equipped with the X31 Off-Road Package, which adds Hill Descent Control, off-road suspension enhancements, and underbody protection for improved trail capability.

The Denali trim brings a refined and upscale interior. This model includes Jet Black leather upholstery, ventilated front seats, heated front and second-row outboard seats, and a floor-mounted center console. A Bose Premium 7-speaker sound system offers an elevated audio experience, while the HD Surround Vision system and Trailer Side Blind Zone Alert enhance visibility and situational awareness around the vehicle and trailer. For even more trailer-specific functionality, the Gooseneck/5th Wheel Prep Package, Trailer Cam Provisions with viewing software, and Bed View Camera are included.

Technology and convenience features are comprehensive. A multicolor 15-inch diagonal head-up display provides key driving information projected onto the windshield, and a rearview auto-dimming camera mirror adds another layer of visibility. Wireless charging, wireless phone projection, and a suite of USB portsincluding two charge-only rear USB ports and two data-capable ports in the center consolehelp ensure all devices remain connected. The truck also includes a power sunroof, remote vehicle start, and a power sliding rear window with defogger.

Safety features include Ultrasonic Front and Rear Park Assist, a Safety Alert Seat, Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, and an Unauthorized Entry Theft-Deterrent System. Denali-specific design elements such as the signature chrome Denali grille and polished exhaust tip emphasize the trucks upscale identity. Additional equipment such as rain-sensing wipers, LED cargo lighting, smoked amber roof marker lamps, and spray-on bedliner with GMC logo support both style and function.

This truck also includes the Denali Reserve Package and Technology Package, bundling advanced tech and comfort upgrades for a comprehensive premium experience.

As with all qualifying purchases at Walt Massey, the 2025 Sierra 2500HD Denali is backed by the Walt Massey 3 Day Money Back Guarantee. This guarantee allows you to return your vehicle within three business days of purchase before 5 p.m. CSTprovided its in "like new" condition and has been driven fewer than 300 miles. If driven over 300 miles, a fee of \$1.00 per additional mile applies. This policy offers added confidence and flexibility in your buying decision.


Price includes: $1000 - Buick & GMC Consumer Cash Program. Exp. 09/30/2025 $1000 - GM Bonus Cash. Exp. 09/30/2025