2026 GMC Sierra 2500

Text 815-446-7319 for questions or to schedule a test drive.Experience the Arnie Bauer Advantage: Trusted Family-Owned Values Since 1945.'' At Arnie Bauer, we believe in empowering our customers with transparent pricing, exceptional service, and unmatched peace of mind. As a family-owned and operated dealership since 1945, we take pride in treating our customers like family, ensuring you receive the care and attention you deserve. Enjoy the confidence of our free lifetime engine warranty and trust that we never engage in price gouging, providing you with the best value for your hard-earned dollar. With two convenient locations, your journey to a new vehicle is not just a transactionit's a relationship built on trust and satisfaction. At Arnie Bauer, your dollar has more power.The 2026 GMC Sierra 2500HD AT4 4WD is built for drivers who need serious heavy-duty capability without giving up premium comfort, advanced technology, or bold off-road style. Finished in Titanium Rush Metallic with a Jet Black interior and Kalahari accents, this Sierra HD makes a strong first impression from every angle. Available now at Arnie Bauer Chevrolet GMC in Wilmington, IL, this truck is ready for towing, hauling, jobsite demands, weekend adventures, and everything in between.Under the hood, this Sierra 2500HD AT4 is powered by the legendary 6.6L Duramax Turbo-Diesel engine paired with the Allison 10-speed automatic transmission. This proven powertrain delivers the strength and confidence heavy-duty truck owners expect, while the two-speed Autotrac transfer case, heavy-duty locking rear differential, Z71 suspension package, skid plates, Hill Descent Control, digital variable steering assist, all-terrain tires, and 4WD capability help this AT4 stay confident on rough roads, gravel, snow, mud, and demanding worksites.The exterior adds both toughness and premium GMC style. Titanium Rush Metallic pairs beautifully with high gloss black aluminum wheels, red recovery hooks, black sport steps, LED fog lamps, animated LED projector headlamps, LED roof marker lamps, trailer mirrors, molded splash guards, spray-on bedliner, rear wheelhouse liners, CornerStep rear bumper, and the signature GMC MultiPro Tailgate. The Snow Plow Prep/Camper Package, 120-volt bed-mounted power outlet, LED cargo area lighting, bed view camera, trailer camera provisions, and integrated trailer brake controller add real-world utility for drivers who use their truck hard.Inside, the Sierra AT4 delivers a refined cabin with rugged character. Heated and ventilated front bucket seats, heated second-row outboard seats, driver memory settings, a heated wrapped steering wheel, dual-zone automatic climate control, premium floor liners, wireless charging, Bose Premium Audio, remote start, keyless open and start, and a power sliding rear window make every drive more comfortable. The 13.4-inch GMC Premium Infotainment Display, 12-inch enhanced Driver Information Center, wireless Apple CarPlay and Android Auto, in-vehicle trailering app, and available Wi-Fi capability keep you connected and in control.Confidence comes from advanced safety and trailering technology, including Sierra HD Pro Safety, Forward Collision Alert, Automatic Emergency Braking, Front Pedestrian Braking, Following Distance Indicator, IntelliBeam automatic high beams, Lane Departure Warning, Front and Rear Park Assist, Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, HD Surround Vision, Rear Camera Mirror, Multi-Color Head-Up Display, Safety Alert Seat, and Hitch Guidance with Hitch View.If youre searching for a 2026 GMC Sierra 2500HD AT4 Duramax for sale near Wilmington, Joliet, Morris, Coal City, Braidwood, Channahon, Plainfield, Elwood, or throughout Will County, visit Arnie Bauer Chevrolet GMC. Price includes: $1000 - Purchase Allowance. Exp. 08/31/2026