New 2025 GMC Sierra 3500HD AT4

Description for 2025 GMC Sierra 3500HD AT4 Truck

The 2025 GMC Sierra 3500HD AT4 is a heavy-duty truck built for those who require power, capability, and advanced features in a rugged package. Equipped with a Duramax 6.6L V8 Turbodiesel engine and a 10-speed automatic transmission, this truck is designed to handle demanding tasks with ease. With 4WD and an advanced 2-speed active transfer case, it delivers reliable off-road performance and traction in various driving conditions.

The exterior of the Sierra 3500HD AT4 stands out with its bold Thunderstorm Gray finish, gloss black header, and grille insert bars. LED smoked amber roof marker lamps and deep-tinted glass enhance both style and functionality. The off-road-ready X31 Off-Road Package provides additional capability with features such as hill descent control and high-clearance steps, ensuring the truck is prepared for challenging terrain.

Inside, the spacious 4D Crew Cab features premium Jet Black leather with Kalahari accents, offering a refined yet durable interior. The heated and ventilated front seats, along with heated second-row outboard seats, provide comfort in all seasons. The floor-mounted center console and premium front and rear floor liners with removable carpet inserts add convenience and durability. A power sunroof adds an open, airy feel to the cabin.

Technology and connectivity are at the forefront with the AT4 Premium Plus Package and Technology Package. A 15-inch multicolor diagonal head-up display keeps essential information in view, while the Bose premium 7-speaker sound system delivers high-quality audio. Wireless phone projection, wireless charging, and multiple USB ports ensure seamless connectivity for all passengers. The truck also includes a bed-mounted 120-volt power outlet and an instrument panel power outlet for added functionality.

For towing and hauling, the Sierra 3500HD AT4 is equipped with the Gooseneck/5th Wheel Prep Package and Trailer Camera Provisions, making it easier to handle heavy loads. Features such as the bed view camera with trailer camera provisions, rear cross-traffic alert, trailer side blind zone alert, and HD surround vision provide enhanced visibility and confidence while towing. The spray-on pickup bedliner with a GMC logo adds durability and protection to the cargo area.

Safety and security are well addressed with the Sierra 3500HD AT4s suite of driver assistance features. The Safety Alert Seat, rear park assist, ultrasonic front and rear park assist, and an unauthorized entry theft-deterrent system help provide peace of mind. Remote vehicle start and keyless open and start add convenience, while the power sliding rear window with a defogger enhances visibility in various weather conditions.

Walt Massey offers a 3 Day Money Back Guarantee, giving buyers the flexibility to return the vehicle within three business days if it meets the return conditions. If the truck has been driven more than 300 miles, a fee of $1.00 per additional mile will apply.

The 2025 GMC Sierra 3500HD AT4 blends power, capability, and modern technology to meet the needs of those requiring a tough yet refined heavy-duty truck. Whether for work or adventure, this truck is designed to perform while offering premium comfort and convenience.


Price includes: $1000 - Buick & GMC Consumer Cash Program. Exp. 03/03/2025