2026 GMC Sierra 2500

This 2026 GMC Sierra 2500HD AT4X in Black delivers the capability and refinement you need for serious work and confident daily driving.- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque- Adaptive Cruise Control- Android Auto and Apple CarPlay- Backup Camera and HD Surround Vision- Moonroof with Power Sunroof- Bose Premium Series 12-Speaker System with SiriusXM 360L Trial- Gooseneck/5th Wheel Prep Package for professional hauling- Wireless Phone Projection and Charging- Heated and Ventilated Leather Front Seats- Bed View Camera with Trailer Camera Provisions- Multicolor 15'' Head-Up Display- Remote Start and Keyless Open and Start- Ultrasonic Front and Rear Park Assist- Spray-on Pickup Bedliner with GMC Logo- 2-Speed Active Transfer Case with Hill Descent ControlThe AT4X trim positions this truck at the intersection of luxury and off-road capability. The full grain leather interior, heated and ventilated front seats, and power adjustable 16-way driver and passenger seats create a commanding cab environment. The multicolor head-up display and wireless charging keep essential information and devices within easy reach during every drive.The Duramax turbodiesel engine paired with the 10-speed automatic transmission delivers the torque needed for towing and hauling while maintaining efficiency. The 2-speed active transfer case and hill descent control add genuine off-road confidence. Gooseneck and 5th wheel prep package readiness means this truck is engineered for heavy-duty work without compromise.Technology integration reflects modern truck ownership. Backup camera, HD surround vision, and bed view camera with trailer provisions eliminate guesswork during complex maneuvering. Trailer side blind zone alert and trailer tire pressure monitor sensors enhance safety when towing. The in-vehicle trailering system app puts control in your hands.Premium appointments throughout reinforce the AT4X's elevated positioning. Gloss black header grille and grille insert bars, LED cargo area lighting, and smoked amber roof marker lamps establish distinctive presence. Remote windows, power sliding rear window with defogger, and rain-sensing wipers handle practical details with sophistication.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 on sale for you!