New 2025 GMC Sierra 2500HD SLT

Description for 2025 GMC Sierra 2500HD SLT Truck

The 2025 GMC Sierra 2500HD SLT offers a combination of robust diesel-powered performance, towing-ready technology, and an extensive suite of interior and safety enhancements. As a 4WD crew cab equipped with the proven Duramax 6.6L V8 Turbodiesel engine and paired with a 10-speed automatic transmission, this truck is well-suited for both professional hauling duties and daily driving versatility. Its two-speed active transfer case and Off-Road Suspension are reinforced further by the X31 Off-Road and Protection Package, delivering additional durability and capability in rugged terrain.

Exterior features include LED smoked amber roof marker lamps, LED cargo area lighting, and chrome accents such as the rectangular chromed tubular assist steps and chrome grille surround with insert bars. Deep-tinted glass and a spray-on bedliner with GMC logo offer protection and privacy. The Gooseneck/5th Wheel Prep Package combined with Trailer Camera Provisions and Trailer Viewing Software, along with Trailer Side Blind Zone Alert and Hill Descent Control, provide critical support for heavy-duty towing and off-road driving. The Bed View Camera enhances trailer alignment and monitoring, while the rear HD camera has been deleted, as this configuration relies on advanced surround vision systems.

Inside, the Sierra 2500HD SLT comes equipped with Jet Black leather-trimmed bucket seats, both heated and ventilated for driver and front passenger, and heated rear outboard seats. A floor-mounted center console adds convenient storage, and the manual tilt/telescoping steering column allows for comfortable positioning. Technology and connectivity features include a 6-speaker audio system upgraded to a Bose premium 7-speaker setup, wireless charging, and wireless phone projection for smartphone integration. USB connectivity is well-supported with multiple USB ports across all rows, including both data and charging capabilities.

Driver assistance and safety features are comprehensive, thanks to the Sierra HD Pro Safety Plus Package and the SLT Premium Package. Key highlights include Adaptive Cruise Control, Rear Cross Traffic Alert, Safety Alert Seat, Ultrasonic Front and Rear Park Assist, and Trailer Side Blind Zone Alert. A universal home remote, power sliding rear window with defogger, electric rear-window defogger, and rain-sensing wipers further contribute to all-weather and all-season usability.

Additional convenience is delivered through the SLT Convenience Package and SLT Preferred Package, bringing features like push-button start, remote vehicle start system, power windows with express up/down for the front passenger, and OnStar Services capability. Rear wheelhouse liners and all-weather floor liners (LPO) are included to protect the trucks interior and underbody in challenging conditions.

The Sierra 2500HD SLT rides on 20-inch bright face wheels with dark painted pockets, contributing both style and utility. For buyers seeking a heavy-duty pickup with a premium interior, off-road readiness, and trailering technology, this configuration offers an extensive suite of factory-installed packages.

Buyers can also take advantage of the Walt Massey 3 Day Money Back Guarantee. If the vehicle is returned to the dealership in like-new condition within three business days of purchase and under 300 miles, a full return is available. Vehicles driven over 300 miles may still be returned, though a \$1.00 per mile fee applies for mileage beyond that threshold. This guarantee provides added peace of mind for your purchase decision.

Not all rebates may apply. Some rebates are not compatible with other rebates. Offers are subject to change. See dealer for details. Price includes: $2750 - Buick & GMC Select Market Incremental Consumer Cash. Exp. 08/04/2025 $500 - GM Military Cash Allowance Program. Exp. 01/02/2026