Summit White 2021 GMC Sierra 1500 AT4 4WD 10-Speed Automatic EcoTec3 6.2L V8 10-Speed Automatic, 4WD, Jet Black w/Forge Perforated Leather-Appointed Seat Trim, 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-Wheel Disc Brakes, 4.2" Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, 6 Speakers, 6-Speaker Audio System Feature, 8" Driver Information Center, ABS brakes, Adaptive Cruise Control, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, AT4 Carbon Hard Badge, AT4 CarbonPro Edition, AT4 High Clearance Step (LPO), AT4 Preferred Package, AT4 Premium Package, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Auto-Locking Rear Differential, Automatic Emergency Braking, Automatic temperature control, Auxiliary External Transmission Oil Cooler, Bed View Camera, Black Dual Exhaust Tips, Body-Color Surround Grille, Brake assist, Bumpers: body-color, CarbonPro (Carbon Fiber Composite) Bed, Cat-Back Performance Exhaust (LPO), Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Delay-off headlights, Driver Alert Package I, Driver Alert Package II, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Electronic Stability Control, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Pedestrian Braking, Front Prem Floor Liners w/Removable Carpet Insert, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Connected Access Capable, HD Rear Vision Camera, HD Surround Vision w/2 Trailer View Camera Provisions, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seating, Heated front seats, Heated steering wheel, Heavy-Duty Air Filter, Hill Descent Control, Hitch Guidance, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering App, Integrated Trailer Brake Controller, IntelliBeam Automatic High Beam On/Off, Keyless Open & Start, Lane Change Alert w/Side Blind Zone Alert, Lane Keep Assist w/Lane Departure Warning, LED Cargo Area Lighting, Low tire pressure warning, Manual Tilt-Wheel & Telescoping Steering Column, Memory seat, Multicolor 15" Diagonal Head-Up Display, MultiPro Audio System by Kicker, Occupant sensing airbag, Off-Road Performance Package (DISC), Off-Road Suspension, OnStar & GMC Connected Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, Performance Air Intake System (LPO) (DISC), Performance Upgrade Package (LPO) (DISC), Perimeter Lighting, Power Door Locks, Power door mirrors, Power driver seat, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power passenger seat, Power Rear Windows w/Express Down, Power Sliding Rear Window w/Rear Defogger, Power steering, Power Sunroof, Power windows, Preferred Equipment Group 4SB, Premium audio system: GMC Infotainment System, Premium Bose 7-Speaker Sound System, ProGrade Trailering System, Radio data system, Radio: Premium GMC Infotainment Sys w/Multi-Touch, Radio: Premium GMC Infotainment Sys w/Navigation, Rear Camera Mirror, Rear Cross Traffic Alert, Rear Dual USB Charging-Only Ports, Rear Prem Floor Liners w/Removable Carpet Insert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Red Recovery Hooks, Remote keyless entry, Remote Vehicle