This 2026 GMC Sierra 1500 Denali Ultimate is a true powerhouse, combining exceptional capability, cutting-edge technology, and unparalleled luxury. With its EcoTec3 6.2L V8 engine, 10-speed automatic transmission, and 4-wheel drive, this truck is ready to tackle any task with ease.<br><br>• GMC Sierra for sale<br>• Preferred Equipment Group 5SB<br>• Trailering Package<br>• Navigation System<br>• Bose Premium Series w/12-Speaker System<br>• MultiPro Tailgate Audio System by Kicker (LPO)<br>• SiriusXM w/360L Trial Subscription<br>• Steering Wheel Audio Controls<br>• Electric Rear-Window Defogger<br>• 120-Volt Bed Mounted Power Outlet<br>• 120-Volt Interior Power Outlet<br><br>The Denali Ultimate trim level elevates this Sierra to new heights, with a host of premium features that cater to your every need. From the high-gloss black header and signature Denali grille to the ventilated front seats and heated rear outboard seats, every detail has been meticulously crafted to provide an unparalleled driving experience.<br><br>Cutting-edge technology is at your fingertips, with features like the 15-inch diagonal Head-Up Display, Wireless Charging, and the Bed View Camera, ensuring you stay connected and in control. The In-Vehicle Trailering System App and Integrated Trailer Brake Controller make towing a breeze, while the Trailer Tire Pressure Monitor System and Hitch Guidance provide added peace of mind.<br><br>Safety is also a top priority, with advanced driver-assistance technologies like Enhanced Automatic Emergency Braking, Forward Collision Alert, and Rear Pedestrian Detection keeping you and your loved ones secure. The Super Cruise hands-free driving system takes the stress out of long journeys, allowing you to focus on the road ahead.<br><br>Whether you're hauling heavy loads, tackling off-road adventures, or simply enjoying the daily commute, this 2026 GMC Sierra 1500 Denali Ultimate is the ultimate companion. Experience the power, technology, and luxury that set this truck apart from the competition.<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: 6200.0
Displacement Ci: 378.3472133873401605
Displacement L: 6.2
Drive Type: 4WD
Engine Configuration: V-Shaped
Engine Model: L87
Engine Number Of Cylinders: 8
Front Air Bag Locations: 1st Row (Driver and Passenger)
Fuel Type Primary: Gasoline
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: DI DFM, ALUM, GEN 5
Other Restraint System Info: AY0 - Active Manual Belts
Seat Belt Type: Manual
Series: 1500
Side Air Bag Locations: 1st Row (Driver and Passenger)
Trim: Denali Ultimate
Vehicle Descriptor: 1GTUUHEL*TZ
Vehicle Type: TRUCK