2026 GMC Sierra 2500

This 2026 GMC Sierra 2500HD Denali Ultimate represents a premium heavy-duty pickup built for serious work and refined daily driving. With its Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission, this truck delivers the capability and efficiency you expect from a modern diesel workhorse.- Duramax 6.6L V8 Turbodiesel with 10-Speed Automatic- 4WD with 2-Speed Active Transfer Case and Hill Descent Control- Snow Plow Prep/Camper Package with 220-Amp Alternator- X31 Off-Road Package with Off-Road Suspension- Spray-In Bed Liner with GMC Logo- Adaptive Cruise Control- Apple CarPlay and Android Auto- Bose Premium Series 12-Speaker System with SiriusXM 360L- Moonroof with Power Operation- Full Grain Leather Seating with Heating and Ventilation- Heated Rear Seats- Bed View Camera with Trailer Camera Provisions- HD Surround Vision and Ultrasonic Park Assist- Wireless Phone Projection and Charging- Remote Vehicle Starter SystemThe interior combines luxury with functionality. Full grain leather seating, heated and ventilated front seats, and heated rear outboard seats ensure comfort in any season. A heated steering wheel and power-adjustable seats with lumbar support accommodate your driving preferences. The Bose premium audio system paired with SiriusXM 360L satellite radio keeps you entertained on every journey, while Apple CarPlay and Android Auto seamlessly integrate your smartphone for navigation and communication.Advanced technology transforms this truck into a command center. The 15-inch diagonal head-up display keeps critical information visible without taking your eyes off the road. A comprehensive camera system including bed view, surround vision, and trailer camera provisions with viewing software simplifies maneuvering and towing. Ultrasonic front and rear park assist guides parking maneuvers with precision, while wireless phone projection and charging keep your devices powered and accessible.The Denali Ultimate package distinguishes this truck with signature styling and premium appointments. The Signature Denali Ultimate grille in Vader chrome commands attention, while the gray exterior and deep-tinted glass provide a sophisticated appearance. LED cargo area lighting, LED smoked amber roof marker lamps, and intelligent lighting features enhance visibility and aesthetics. The spray-on bedliner protects your cargo area while displaying the GMC logo.For work and adventure, this Sierra 2500HD comes prepared. The Snow Plow Prep/Camper Package includes a 220-amp alternator, transfer case and oil pan skid plates, and provisions for emergency roof lighting and aftermarket equipment installation. The X31 Off-Road Package provides an off-road suspension with hill descent control, enabling confident navigation across challenging terrain. A bed-mounted 120-volt power outlet provides convenient charging for tools and equipment.Safety and connectivity round out this comprehensive package. OnStar services keep you connected in emergencies and for remote vehicle access. Lane departure warning, forward collision alert, automatic emergency braking, and a safety alert seat work together to protect you and your passengers. Keyless entry and push-button start enhance convenience, while the remote vehicle starter system prepares your truck before you leave home.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 Denali Ultimate on sale for you!