2021 GMC Sierra 1500 AT4 Onyx Black Certified. Backup Camera, Android Auto, Apple CarPlay, Bluetooth, CPO, CERTIFIED, CERTIFIED PRE-OWNED, GM CERTIFIED, Sierra 1500 AT4, 4D Crew Cab, EcoTec3 5.3L V8, 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 120-Volt Instrument Panel Power Outlet, 12-Volt Rear Auxiliary Power Outlet, 170 Amp Alternator, 2 USB Ports, 2 USB Ports (1st Row), 4.2 Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, Auto-Locking Rear Differential, Auxiliary External Transmission Oil Cooler, Body-Color Surround Grille, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Floor-Mounted Center Console, Front Prem Floor Liners w/Removable Carpet Insert, GMC Connected Access Capable, HD Rear Vision Camera, Heated Driver & Front Outboard Passenger Seating, Heavy-Duty Air Filter, Hill Descent Control, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel & Telescoping Steering Column, OnStar & GMC Connected Services Capable, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power Rear Windows w/Express Down, Preferred Equipment Group 4SB, ProGrade Trailering System, Rear Dual USB Charging-Only Ports, Rear Wheelhouse Liners, Red Recovery Hooks, Remote Vehicle Starter System, Spray-On Pickup Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Theft Deterrent System (Unauthorized Entry), Trailering Package, Ventilated Driver & Front Passenger Seats. 4WD 10-Speed Automatic EcoTec3 5.3L V8 . Stop by Woody Buick GMC Naperville today to schedule a test drive and see for yourself why Woody Buick GMC is Chicagoland's most awarded GM dealer! Make sure to take advantage of the best deals and incentives around! We have a 2021 GMC Sierra 1500 AT4 on sale for you! Odometer is 27756 miles below market average! GMC Certified Pre-Owned Details: * Transferable Warranty * 172 Point Inspection * 24 months/24,000 miles (whichever comes first) Certified Pre-Owned Scheduled Maintenance Plan and 3 days/150 miles (whichever comes first) Vehicle Exchange Program. SiriusXM 3-month trial subscription * Limited Warranty: 12 Month/12,000 Mile (whichever comes first) from certified purchase date * Warranty Deductible: $0 * Roadside Assistance * Vehicle History * Powertrain Limited Warranty: 72 Month/100,000 Mile (whichever comes first) from original in-service date