"Experience the Pinnacle of Capability in the 2026 GMC Sierra 2500HD AT4X This impressive 2026 GMC Sierra 2500HD AT4X is a true workhorse, engineered to conquer any challenge with uncompromising power and capability. Equipped with a robust Duramax 6.6L V8 Turbodiesel engine, this heavy-duty truck delivers an exceptional 470 horsepower and an astounding 975 lb-ft of torque, providing the muscle to tackle even the toughest jobs. - Adaptive Cruise Control - Android Auto - Apple CarPlay - Backup Camera - Bluetooth - Moonroof / Sunroof - Remote Start - Spray In Bed Liner Designed for the adventurous spirit, the Sierra 2500HD AT4X boasts a comprehensive suite of off-road-focused features, including a 2-Speed Active Transfer Case, Hill Descent Control, and an Off-Road Suspension. Whether you're hauling heavy loads or exploring uncharted terrain, this truck is built to exceed your expectations. Elevating the driving experience, the Sierra 2500HD AT4X offers an array of premium amenities, including a Bose Premium Series 12-Speaker System, Wireless Charging, and a Multicolor 15"" Diagonal Head-Up Display. Stay connected, entertained, and informed throughout your journeys. Safety is paramount in the Sierra 2500HD AT4X, with advanced driver assistance technologies such as Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, and Ultrasonic Front and Rear Park Assist. You can navigate with confidence, knowing your vehicle is equipped to keep you and your cargo secure. Stop by Woody Buick GMC Naperville, an 11-time GM Dealer of the Year and Mark of Excellence recipient, to schedule a test drive! See for yourself why this J.D. Power 2026 Dealer of Excellence is Illinois' 1 Sales Volume Buick GMC destination and Chicagoland's most awarded dealer. Take advantage of our award-winning service and the best incentives around! We have a 2026 GMC Sierra 2500HD AT4X on sale for you!"