New 2026 GMC Sierra 2500HD AT4X For Sale Warrenton, VA

The 2026 GMC Sierra 2500HD AT4X Crew Cab is engineered for serious capability and premium comfort. Finished in bold Black with Obsidian Rush Leather interior, this 4WD diesel powerhouse combines rugged off-road prowess with refined on-road refinement. The Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission deliver the power and control today's truck operators demand.- Duramax 6.6L V8 Turbodiesel with 10-speed automatic transmission- 4WD with 2-speed active transfer case and hill descent control- Off-road suspension with rock sliders and skid plates- 16-way power driver and passenger seats with lumbar support, heated and ventilated front seats- Bose premium 12-speaker audio with SiriusXM 360L trial subscription- Premium GMC infotainment system with Apple CarPlay and Android Auto- 15-inch full-color head-up display with multicolor information- HD surround vision with bed view camera and trailer camera provisions- Heated steering wheel and power sunroof- Advanced safety suite including automatic emergency braking, lane departure warning, rear cross-traffic alert, and trailer side blind zone alertThe AT4X trim elevates every detail with premium leather seating, wireless charging, and comprehensive connectivity. An array of integrated trailering technologies—including hitch guidance, in-vehicle app control, and tire pressure monitoring—makes hauling intuitive and secure. Safety is paramount, with OnStar emergency communication, multiple airbags, and intelligent driver assistance systems all standard.Visit us today to experience the Sierra 2500HD AT4X and discover how premium capability and modern convenience blend seamlessly in one commanding truck.