Elevate your driving experience with this exceptional 2026 GMC Sierra 1500 AT4. Meticulously crafted with premium features and uncompromising off-road capabilities, this Sierra is the perfect companion for your next adventure.<br><br>Boasting a bold, rugged exterior in a stunning Gray color, this Sierra AT4 is equipped with a powerful 3.0L I6 engine and a 10-Speed Automatic transmission, delivering an impressive 22 city / 26 highway MPG. Enjoy the convenience of 4-Wheel Drive, along with the added confidence of the Off-Road Suspension and Auto-Locking Rear Differential.<br><br>• GMC Sierra for sale<br>• AT4 PREMIUM PACKAGE<br>• TECHNOLOGY PACKAGE<br>• Sunroof, Power<br>• Premium Bose 7-Speaker Sound System<br>• Wireless Apple CarPlay/Wireless Android Auto<br>• Multicolor 15 Diagonal Head-Up Display<br>• Rear Camera Mirror<br>• Off-Road High Clearance Step<br><br>This Sierra AT4 is thoughtfully designed to elevate your driving experience. Indulge in the comfort of heated and ventilated front seats, along with a heated steering wheel and heated rear seats. Stay connected with the Premium GMC Infotainment Audio System, complete with Wireless Charging and a Wi-Fi Hotspot.<br><br>Elevate your towing and hauling capabilities with the Integrated Trailer Brake Controller, Hitch Guidance, and Hitch View features. The Spray-On Bedliner and 120-Volt Bed Mounted Power Outlet further enhance the Sierra's versatility.<br><br>Safety is a top priority, with advanced features like Automatic Emergency Braking, Forward Collision Alert, Lane Keep Assist, and Rear Pedestrian Detection keeping you and your loved ones protected.<br><br>Experience the unparalleled performance, capability, and comfort of the 2026 GMC Sierra 1500 AT4. Schedule a test drive today and discover the difference this exceptional vehicle can make in your daily driving and adventure-seeking lifestyle.<br><br>Welcome to Castle Buick GMC, your trusted Buick and GMC dealership in North Riverside, IL, proudly serving shoppers from Cicero, Chicago, Berwyn, Oak Park, Brookfield, and nearby suburbs. If you are searching for new Buick vehicles for sale near me or new GMC trucks and SUVs near Chicago, you are in the right place.<br><br>Explore our lineup of new Buick Envista, Encore GX, Envision, and Enclave models—perfect for drivers seeking comfort, technology, and exceptional value.<br><br>On the GMC side, shop our selection of GMC Terrain, Acadia, Yukon, Sierra 1500, and Sierra HD trucks, with multiple trims and configurations to match your performance and towing needs.<br><br>At Castle Buick GMC, you will enjoy competitive pricing, easy financing, and a knowledgeable sales team ready to help you find the right vehicle. Browse our new Buick and GMC inventory online, schedule a test drive, or visit our North Riverside showroom today.<br><br>Contact our sales team at (708) 853-3542.<br>Price does not include tax, title.

Castle Buick GMC
7400 Cermak Rd
North Riverside, IL 60546

Additional Error Text: The Model Year decoded for this VIN may be incorrect. If you know the Model year, please enter it and decode again to get more accurate information.
Antilock Braking System Abs: Standard
Body Class: Pickup
Brake System Type: Hydraulic
Curtain Air Bag Locations: All Rows
Displacement Cc: 3000
Displacement Ci: 183.0712322841968519
Displacement L: 3
Drive Type: 4WD
Engine Configuration: In-Line
Engine Model: LZ0
Engine Number Of Cylinders: 6
Front Air Bag Locations: 1st Row (Driver and Passenger)
Fuel Type Primary: Diesel
Gross Vehicle Weight Rating From: Class 2F: 7,001 - 8,000 lb (3,175 - 3,629 kg)
Gross Vehicle Weight Rating To: Class 2F: 7,001 - 8,000 lb (3,175 - 3,629 kg)
Other Engine Info: CRI, L6, VGT, ALUM, CSS50V, VAR. 2
Other Restraint System Info: AY0 - Active Manual Belts
Seat Belt Type: Manual
Series: 1500
Side Air Bag Locations: 1st Row (Driver and Passenger)
Trim: AT4
Turbo: Yes
Valve Train Design: Dual Overhead Cam (DOHC)
Vehicle Descriptor: 3GTUUEE8*TG
Vehicle Type: TRUCK