*Vehicle Details* Looking for a capable pre-owned truck in Platteville, WI? This 2026 GMC Sierra 1500 AT4 with only 18,957 miles delivers the rugged performance and premium comfort drivers want in a full-size pickup. Powered by a 6-cylinder, 3.0L Diesel engine and equipped with 4WD, this GMC Sierra AT4 is ready for work, towing, and weekend adventures across Wisconsin. Inside, you'll find a well-appointed cabin with XM Radio, Steering Wheel Audio Controls, Adaptive Cruise Control, a Back-Up Camera, and a Heated Steering Wheel for added convenience in every season. The AT4 trim brings bold styling, off-road capability, and the refined features that make every drive more enjoyable. Low mileage means this pre-owned GMC Sierra 1500 still has plenty of life ahead, making it a smart choice for shoppers seeking durability and value. If you need a versatile truck with modern technology, confident handling, and diesel power, this 2026 GMC Sierra 1500 AT4 deserves a closer look. Visit our Platteville, WI location today to see why this GMC Sierra stands out among pre-owned 4WD trucks for sale. Whether you're shopping for a dependable work truck or a comfortable daily driver, this low-mileage 2026 GMC Sierra 1500 AT4 offers the power, features, and capability to handle it all with confidence, style, and versatility on every road year-round. *Equipment* It's Lane Departure Warning helps keep you in your lane. You'll never again be lost in a crowded city or a country region with the navigation system on this 1/2 ton pickup. Engulf yourself with the crystal clear sound of a BOSE sound system in it. This unit has a clean AutoCheck report, ensuring its impeccable vehicle history. This model stays safely in its lane with Lane Keep Assist. This 2026 GMC Sierra 1500 has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. Keep your hands warm all winter with a heated steering wheel in this GMC Sierra . An off-road package is installed on this vehicle so you are ready for your four-wheeling best. It offers Android Auto for seamless smartphone integration. This 2026 GMC Sierra 1500 offers Apple CarPlay for seamless connectivity. Protect this GMC Sierra from unwanted accidents with a cutting edge backup camera system. *Packages* Technology Package: Multicolor 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror. Preferred Equipment Group 4SB: Trailer Side Blind Zone Alert; Ultrasonic Front and Rear Park Assist; Trailer Camera Provisions; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Black Chrome Grille Insert Bars; Front Rain-Sensing Wipers; Heavy-Duty Air Filter; Skid Plates; 120-Volt Interior Power Outlet; Heated Driver and Front Outboard Passenger Seating; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Color-Keyed Carpeting Floor Covering; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Premium Bose 7-Speaker Sound System; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Power Rake and Telescoping Steering Column; Keyless Open and Start; Perimeter Lighting; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; In-Vehicle Trailering System App; Hill Descent Control; 220 Amp Alternator; Floor-Mounted Center Console; Rear Cross Traffic Braking; GMC Pro Safety; Trailering Package; 2 USB Ports; 2 Charge/data USB Ports Inside Center Console; Off-Road Suspension; Steering Wheel Audio Controls; 2 type-C Charge-Only Rear USB Ports; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; Red Recovery Hooks; SiriusXM with 360L Trial Subscription; Hitch View; Power Front Windows with Driver Express Up/down; Rear Pedestrian Detection; Wi-Fi Hotspot Capable; Rear Wheelhouse Liners; 20" X 9" Machined Aluminum Wheels; A