Experience the Unparalleled Capability and Refinement of the 2026 GMC Sierra 1500 AT4<br><br>Elevate your driving experience with the exceptional 2026 GMC Sierra 1500 AT4. This rugged and versatile full-size pickup combines off-road prowess with premium comfort and advanced technology, making it the ultimate companion for your adventures.<br><br>• AT4 PREMIUM PACKAGE<br>• Sunroof, Power<br>• Onyx Black Exterior<br>• Front and Rear Molded Splash Guards, Black (dealer-installed)<br>• Engine Block Heater<br><br>Engineered to conquer any terrain, the Sierra 1500 AT4 boasts a powerful 3.0L I6 engine mated to a smooth-shifting 10-speed automatic transmission and robust 4-wheel drive system. With 22 city/26 highway MPG, you'll enjoy exceptional efficiency without compromising capability.<br><br>Elevate your driving experience with the Sierra 1500 AT4's impressive list of premium features:<br>• Bose Premium 7-Speaker Sound System<br>• SiriusXM with 360L Trial Subscription<br>• Heated and Ventilated Front Seats<br>• Heated Rear Outboard Seats<br>• Wireless Charging<br>• Trailer Camera Provisions<br>• Integrated Trailer Brake Controller<br>• And much more<br><br>The Sierra 1500 AT4 also delivers uncompromising safety and technology, with features like Forward Collision Alert, Automatic Emergency Braking, Lane Keep Assist, and the innovative HD Surround Vision camera system. Whether you're tackling off-road adventures or navigating the city streets, the Sierra 1500 AT4 is built to handle it all with confidence and style.<br><br>Discover the perfect blend of capability, comfort, and technology in the 2026 GMC Sierra 1500 AT4. Visit Castle Buick GMC today and experience this exceptional truck for yourself. Our knowledgeable sales team is ready to help you find the perfect Sierra 1500 to fit your needs and 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: 1GTUUEE8*TZ
Vehicle Type: TRUCK