New 2025 GMC Sierra 2500HD AT4

Description for 2025 GMC Sierra 2500HD AT4 Truck

The 2025 GMC Sierra 2500HD AT4 is engineered for heavy-duty performance and off-road readiness, combining robust capability with advanced technology and premium interior appointments. This crew cab configuration is powered by a Duramax 6.6L V8 turbodiesel engine, mated to a 10-speed automatic transmission and four-wheel drive system, providing strong towing power and control in a variety of conditions.

The AT4 trim stands out with distinctive design elements and off-road-oriented upgrades. Exterior features include the X31 Off-Road Package, hill descent control, off-road high clearance steps, and a 2-speed active transfer case, all designed to optimize traction and control when venturing beyond paved roads. Gloss black grille accents, LED smoked amber roof marker lamps, LED cargo area lighting, and rear wheelhouse liners contribute to the trucks rugged yet refined appearance.

Inside, the cabin blends durable utility with upscale comfort. The Jet Black leather seating surfaces are accented with Kalahari trim, and both the front and second-row outboard seats are heated. Front seats also offer ventilation for added comfort in warmer climates. The front passenger seat features power adjustment with express up/down window functionality, and a floor-mounted center console provides functional storage space. The driver benefits from a manual tilt and telescoping steering column, as well as a 15-inch multicolor head-up display that projects critical vehicle information directly into the line of sight.

This Sierra is also equipped with a wide range of connectivity and entertainment options. Wireless Apple CarPlay and Android Auto are supported through wireless phone projection. The Bose Premium 7-speaker sound system delivers enhanced audio quality, and multiple USB ports throughout the cabinincluding data and charge-only optionssupport a variety of devices. Wireless charging adds further convenience.

Safety and driver assistance technologies are comprehensive. HD Surround Vision, a Bed View Camera, and trailer camera provisions with trailer viewing software assist with trailering and parking. Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, Ultrasonic Front and Rear Park Assist, and a Safety Alert Seat enhance situational awareness. An auto-dimming rearview mirror with rear camera view and rain-sensing wipers further support the driver in changing conditions.

Technology packages included in this configuration provide advanced driver and trailering tools. The AT4 Premium Plus Package and Technology Package bundle in high-end features such as a power sunroof, universal home remote, and the trailering suite with a gooseneck/5th wheel prep package.

Additional features such as remote start, keyless open and push-button start, OnStar Services capability, and a theft-deterrent system ensure daily usability and peace of mind.

The 2025 GMC Sierra 2500HD AT4 is covered by the Walt Massey 3 Day Money Back Guarantee. This guarantee allows you to return the vehicle to the dealership where it was purchased within three business days (by 5 p.m. CST), provided it remains in like-new condition and has been driven fewer than 300 miles. If the mileage exceeds 300 miles, a charge of \$1.00 per additional mile will apply. This policy offers additional reassurance as you evaluate whether this vehicle meets your expectations.


Price includes: $1000 - Buick & GMC Consumer Cash Program. Exp. 09/02/2025