*Why BUY from Twin City Buick GMC?*When you choose this *BLACK 2021 GMC Sierra 1500 AT4* with *131,072* miles, you are not just buying a used vehicle - you are investing in quality, reliability and peace of mind. Our clientele depend on us for *Transparent Pricing, Convenience* and, most importantly, *Customer FIRST Service!**What this vehicle includes:*=== Driver Alert Package I === * Perimeter Lighting * Ultrasonic Front and Rear Park Assist * Rear Cross Traffic Alert * Lane Change Alert with Side Blind Zone Alert=== Driver Alert Package II ($1,095 value) === * Safety Alert Seat * Adaptive Cruise Control * IntelliBeam Automatic High Beam On/off * Following Distance Indicator * Forward Collision Alert * Lane Keep Assist with Lane Departure Warning * Automatic Emergency Braking * Front Pedestrian Braking=== AT4 Premium Package ($3,200 value) === * AT4 High Clearance Step=== Technology Package ($2,075 value) === * Rear Camera Mirror * 8" Driver Information Center * Multicolor 15" Diagonal Head-Up Display * Bed View Camera * HD Surround Vision with 2 Trailer View Camera Provisions=== Preferred Equipment Group 4SB === * GMC Connected Access Capable * Power Front Passenger Windows with Express Up/down * Power Rear Windows with Express Down * Deep-Tinted Glass * Keyless Open and Start * Power Door Locks * Power Front Windows with Driver Express Up/down * Rear Wheelhouse Liners * Color-Keyed Carpeting Floor Covering * Front Premium Floor Liners with Removable Carpet Insert * Remote Vehicle Starter System * Electric Rear-Window Defogger * Spray-On Pickup Bed Liner with AT4 Logo * Compass * Floor-Mounted Center Console * Auto-Locking Rear Differential * Body-Color Surround Grille * Hill Descent Control * Integrated Trailer Brake Controller * Heavy-Duty Air Filter * Heated Driver and Front Outboard Passenger Seating * 120-Volt Instrument Panel Power Outlet * Auxiliary External Transmission Oil Cooler * 12-Volt Rear Auxiliary Power Outlet * Ventilated Driver and Front Passenger Seats * 170 Amp Alternator * 2 USB Ports * 2 USB Ports (1st Row) * Electrical Lock Control Steering Column * Manual Tilt-Wheel and Telescoping Steering Column * 2-Speed Transfer Case * Skid Plates * ProGrade Trailering System * 4.2" Diagonal Color Display Driver Info Center * OnStar and GMC Connected Services Capable * LED Cargo Area Lighting * Red Recovery Hooks * Steering Wheel Audio Controls * Rear Dual USB Charging-Only Ports * Theft Deterrent System (unauthorized Entry) * HD Rear Vision Camera * 4G LTE Wi-Fi Hotspot Capable * Off-Road Suspension * Trailering Package=== AT4 Preferred Package === * Power Sliding Rear Window with Rear Defogger * Premium GMC Infotainment System Radio with Navigation * Wireless Charging * Universal Home Remote * Premium Bose 7-Speaker Sound System=== Safety and Security === * The vehicle constantly monitors the roadway in front of the vehicle and identifies and tracks pedestrians on an interior display. If the system determines a likely impact, it will automatically take preventative steps to avoid hitting the pedestrian. * The vehicle is equipped with a camera that displays an image of the area behind the vehicle on an interior display. * The vehicle is equipped with a camera that displays an image of the area behind the vehicle on an interior display.=== Technology and Telematics === * Without the need for a manufacturer specific app to be installed on the smart device, the vehicle infotainment system can access and control functions of a smart device physically plugged-into the vehicle. * Mobile devices can wirelessly connect to the internet through the vehicle's private mobile network.EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, 5.3L ECOTEC3 V8, TRANSMISSION, 10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED, GVWR, 7000 LBS. (3175 KG), REAR AXLE, 3.23 RATIO, WHEELS, 20" X 9" (50.8 CM X 22.9 CM) MACHINED ALUMINUM WITH CARBON GREY METALLIC ACCENTS, TIRES, LT265/60R20 MT BLACKWALL GOODYEAR WRANGLER TERRITORY, TIRE, SPARE 265/70R17S