This 2025 GMC Sierra 2500HD AT4 Crew Cab 4WD is built to handle serious work while delivering premium comfort and advanced technology at every level. Finished in a striking Volcanic Red Tintcoat and paired with a refined Jet Black interior with Kalahari accents, this truck makes a bold statement whether it’s on the job site or out on the town.

Under the hood, you’ll find the legendary Duramax 6.6L Turbo-Diesel V8, paired to the proven Allison 10-speed automatic transmission. This combination is engineered for maximum torque, durability, and smooth power delivery—making it ideal for towing, hauling, and tackling demanding terrain. Equipped with a 2-speed Autotrac transfer case, auto-locking rear differential, and off-road-tuned suspension with skid plates, the AT4 trim is purpose-built for off-road capability without sacrificing everyday drivability. The Max Trailering Package further enhances its capability with upgraded suspension components, a heavier-duty frame, and gooseneck/5th-wheel readiness, giving you the confidence to pull serious weight.

Inside, this Sierra delivers a premium, driver-focused cabin loaded with comfort and convenience. You’ll enjoy 10-way power front bucket seats, along with heated and ventilated front seats and heated rear outboard seating, ensuring year-round comfort for everyone on board. The heated, leather-wrapped steering wheel, dual-zone climate control, and driver memory settings add an extra level of refinement, while the power sunroof opens up the cabin for an airy, upscale feel. Thoughtful touches like premium floor liners and a versatile rear seat storage system make this truck as practical as it is comfortable.

Technology is front and center with a massive 13.4-inch GMC Premium Infotainment touchscreen featuring built-in Google compatibility, navigation capability, and seamless wireless Apple CarPlay and Android Auto integration. A 12.3-inch digital driver information center keeps critical data in clear view, while the Bose premium sound system delivers rich, immersive audio. The Technology Package adds a multi-color head-up display and rear camera mirror, giving you enhanced visibility and a more connected driving experience.

Safety and driver assistance features are comprehensive and confidence-inspiring. This truck is equipped with Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning, Front Pedestrian Braking, and Following Distance Indicator. You’ll also benefit from advanced trailering-focused safety tech like Trailer Side Blind Zone Alert, along with HD Surround Vision, rear cross traffic alert, and front and rear park assist—making maneuvering and towing easier and safer in any situation.

On the exterior, the AT4 stands out with rugged styling and functional upgrades. Features like power-folding and extending heated trailer mirrors, LED projector headlamps with animation, LED fog lamps, and LED cargo lighting enhance both visibility and aesthetics. The MultiPro tailgate, spray-on bedliner, and CornerStep rear bumper add versatility and durability for everyday use, while power-retractable assist steps provide easy access without compromising ground clearance. Signature red front recovery hooks reinforce its off-road-ready attitude.

Altogether, this Sierra 2500HD AT4 is the perfect blend of heavy-duty performance, off-road capability, cutting-edge technology, and premium comfort. It’s a truck designed for those who demand more—from their equipment, their capability, and their driving experience.