AT4! 4X4! One-Owner! 6.2L V8! Leather Heated/Vented Seats! Remote Start! 2021 GMC Sierra 1500 AT4 4D Crew Cab Satin Steel Metallic EcoTec3 6.2L V8 10-Speed Automatic 4WD 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 170 Amp Alternator, 18 x 8.5 Machined Aluminum Wheels, 2 USB Ports, 2 USB Ports (1st Row), 3.23 Rear Axle Ratio, 4.2 Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, 6-Speaker Audio System Feature, Apple CarPlay/Android Auto, Auto-Locking Rear Differential, Automatic temperature control, Auxiliary External Transmission Oil Cooler, Body-Color Surround Grille, Bumpers: body-color, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Electronic Stability Control, Floor-Mounted Center Console, Front Bucket Seats, Front Center Armrest, Front Prem Floor Liners w/Removable Carpet Insert, GMC Connected Access Capable, GMC MultiPro Tailgate, HD Rear Vision Camera, Heated Driver & Front Outboard Passenger Seating, Heated steering wheel, Heavy-Duty Air Filter, Hill Descent Control, Hitch Guidance, Hitch Guidance w/Hitch View, In-Vehicle Trailering App, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel & Telescoping Steering Column, Off-Road Suspension, OnStar & GMC Connected Services Capable, Perforated Leather-Appointed Front Seat Trim, 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, Radio: Premium GMC Infotainment Sys w/Multi-Touch, Rear Dual USB Charging-Only Ports, Rear Prem Floor Liners w/Removable Carpet Insert, Rear step bumper, Rear Wheelhouse Liners, Red Recovery Hooks, Remote Vehicle Starter System, SiriusXM w/360L, Speed control, Split folding rear seat, Spray-On Pickup Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Theft Deterrent System (Unauthorized Entry), Traction control, Trailering Package, Ventilated Driver & Front Passenger Seats.