Used 2024 Gmc Sierra HD AT4

Take on work and adventure in style with this 2024 GMC Sierra 2500HD AT4 Crew Cab 4x4, finished in bold Onyx Black with a premium Jet Black/Kalahari interior. Under the hood, the proven 6.6L Duramax Turbo-Diesel V8 is paired with the legendary Allison 10-speed automatic transmission, delivering outstanding towing power, torque, and durability. This truck is built to perform with the AT4 Off-Road Suspension Package, skid plates, hill descent control, and the AutoTrac two-speed transfer case, while the Gooseneck/5th Wheel Prep Package, integrated trailer brake controller, Hitch View, and Trailer Side Blind Zone Alert make heavy-duty towing a breeze. Inside, you’ll find first-class comfort with heated and ventilated front bucket seats, heated second-row seats, heated steering wheel, memory settings, Bose premium audio, and a 13.4-inch infotainment system with Google built-in, Apple CarPlay®, Android Auto™, and wireless phone projection. The AT4 Premium Plus Package adds luxury and convenience with a power sunroof, multicolor 15-inch Head-Up Display, rear camera mirror, power sliding rear window, universal home remote, and power-retractable assist steps with LED lighting. Practical upgrades like a spray-in bedliner, LED cargo lighting, bed view camera, and the innovative GMC MultiPro tailgate with step lights make this truck as functional as it is refined. Advanced safety comes standard with GMC Pro Safety, including Forward Collision Alert, Lane Departure Warning, Automatic Emergency Braking, Rear Cross Traffic Alert, HD Surround Vision, and Adaptive Cruise Control with a Driver Safety Alert Seat. Riding on 20-inch black aluminum wheels wrapped in all-terrain tires, this Sierra AT4 combines aggressive looks with unstoppable capability. Whether you’re towing, hauling, or exploring off-road, this Sierra 2500HD AT4 delivers the perfect balance of luxury, rugged strength, and cutting-edge technology—a truck built to exceed expectations.