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2020 GMC SIERRA

Price: $39,934
Condition: Pre-Owned
Mileage: 48,994
VIN: 1GTU9FEL6LZ155407
Exterior Color: Smokey Quartz Metallic
Interior Color: Jet Black Forge Perforated Leather Appointed Seat Trim
# of doors: 4
Class: Pickup
Series: 1500
Engine: 6.2L 8 cylinders
Fuel: Gasoline
Transmission Speeds: 8
Drivetrain: 4WD
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Last updated: 02/25/2026


Dealer Description
Elevate your driving experience with this exceptional 2020 GMC Sierra 1500 Denali. Boasting a powerful EcoTec3 6.2L V8 engine, 4-wheel drive, and a host of premium features, this truck is ready to tackle any task with uncompromising capability and refined style.<br><br>• 1 OWNER CLEAN HISTORY REPORT<br>• 4WD<br>• A MUST SEE<br>• LIKE NEW<br>• NAVIGATION/GPS<br>• LEATHER<br>• REMOTE START<br>• HEATED FRONT SEATS<br>• BED TOPPER<br><br>The Denali Ultimate Package takes this Sierra to new heights, offering cutting-edge technology, advanced safety features, and premium amenities. Enjoy the convenience of the 360-degree camera system, the comfort of heated and ventilated front seats, and the confidence of the ProGrade Trailering System. With the 22-inch multi-dimensional polished aluminum wheels and the signature Denali grille, this truck commands attention wherever it goes.<br><br>Slip behind the wheel and experience the power of the 6.2L V8 engine, which delivers 420 horsepower and 460 lb-ft of torque. The 10-speed automatic transmission and 4WD system ensure seamless performance and exceptional traction, whether you're navigating city streets or venturing off-road.<br><br>This Sierra 1500 Denali also boasts a host of advanced safety and driver-assist technologies, including Adaptive Cruise Control, Forward Collision Alert, and Lane Keep Assist. With these features, you can enjoy a confident and secure driving experience, no matter the conditions.<br><br>Inside the cabin, you'll be surrounded by premium materials and thoughtful design. The Forge Perforated Leather-Appointed Seat Trim, Heated and Ventilated Front Seats, and Heated Rear Seats provide unparalleled comfort, while the 15-inch Head-Up Display and Bose Premium Audio System deliver a truly immersive driving experience.<br><br>Whether you're hauling heavy loads, towing your trailer, or simply enjoying the open road, this 2020 GMC Sierra 1500 Denali is the perfect companion. Experience the ultimate in capability, technology, and luxury. Visit Castle Buick GMC today and let us put you behind the wheel of this exceptional vehicle.<br><br>Welcome to Castle Buick GMC, your top destination for quality used cars, trucks, and SUVs in North Riverside, IL. Customers from Cicero, Chicago, Berwyn, Oak Park, Brookfield, Maywood, and Broadview choose us for a reliable, customer-focused buying experience.<br><br>Browse our wide selection of used vehicles, certified pre-owned Buick & GMC models, and affordable options under $10,000—all competitively priced and inspected for quality. Whether shopping online or in-store, you'll see why Castle Buick GMC is one of Chicagoland's most trusted used-car dealerships.<br><br>For questions or a test drive, call (708) 853-3542.<br>Price excludes tax, title, and a $367.70 doc fee.

Dealer Details

Castle Buick GMC
7400 Cermak Rd
North Riverside, IL 60546

Data from the National Highway Traffic Saftey Association
Adaptive Cruise Control Acc: Optional
Adaptive Driving Beam Adb: Optional
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
Autoreverse System For Windows And Sunroofs: Standard
Automatic Crash Notification Acn And Aacn: Standard
Backup Camera: Standard
Blind Spot Warning Bsw: Standard
Body Class: Pickup
Brake System Type: Hydraulic
Cab Type: Crew/Super Crew/Crew Max
Curtain Air Bag Locations: All Rows
Daytime Running Light Drl: Standard
Displacement Cc: 6200.0
Displacement Ci: 378.3472133873401605
Displacement L: 6.2
Doors: 4
Drive Type: 4WD
Dynamic Brake Support Dbs: Standard
Electronic Stability Control Esc: Standard
Engine Configuration: V-Shaped
Engine Model: L87 - DI DFM, ALUM, GEN 5
Engine Number Of Cylinders: 8
Forward Collision Warning Fcw: Optional
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)
Headlamp Light Source: LED
Keyless Ignition: Standard
Lane Departure Warning Ldw: Optional
Lane Keeping Assistance Lka: Optional
Number Of Wheels: 4
Parking Assist: Standard
Pedestrian Automatic Emergency Braking Paeb: Optional
Rear Cross Traffic Alert: Standard
Seat Belt Type: Manual
Semiautomatic Headlamp Beam Switching: Standard
Series: 1500
Side Air Bag Locations: 1st Row (Driver and Passenger)
Tire Pressure Monitoring System Tpms Type: Direct
Traction Control: Standard
Transmission Speeds: 8
Trim: Denali
Vehicle Descriptor: 1GTU9FEL*LZ
Vehicle Type: TRUCK
Wheel Size Front Inches: 17
Wheel Size Rear Inches: 17
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