Summit White 2021 GMC Sierra 1500 4WD 6-Speed Automatic EcoTec3 5.3L V8 6-Speed Automatic, 4WD, Jet Black Vinyl, 10-Way Power Driver Seat Adjuster w/Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 170 Amp Alternator, 1SA Driver Alert Package I, 1SA Safety Confidence Package, 3.42 Rear Axle Ratio, 4-Way Manual Driver Seat Adjuster, 4-Way Manual Passenger Seat Adjuster, 4-Wheel Disc Brakes, 4.2" Diagonal Color Display Driver Info Center, 6 Speakers, 6-Speaker Audio System Feature, 720 Heavy-Duty Battery, ABS brakes, Air Conditioning, AM/FM radio, Apple CarPlay/Android Auto, Auto-Locking Rear Differential, Automatic Emergency Braking, Auxiliary External Transmission Oil Cooler, Black Manual Outside Mirrors, Brake assist, Bumpers: chrome, Chrome Mirror Caps, Chrome Surround Grille w/Black Mesh, Convenience Package, Cruise Control, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electronic Stability Control, Engine Block Heater, EZ Lift Power Lock & Release Tailgate, Forward Collision Alert, Front 40/20/40 Split-Bench Seat, Front anti-roll bar, Front Center Armrest w/Storage, Front Frame-Mounted Black Recovery Hooks, Front Pedestrian Braking, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heated Power-Adjustable Outside Mirrors, Heavy Duty Suspension, Heavy-Duty Air Filter, Hill Descent Control, Hitch Guidance, Integrated Trailer Brake Controller, Lane Change Alert w/Side Blind Zone Alert, LED Cargo Area Lighting, Low tire pressure warning, Not Equipped w/Active Fuel Management, Occupant sensing airbag, Off-Road Suspension, Outside temperature display, Overhead airbag, Overhead console, Passenger door bin, Passenger vanity mirror, Perimeter Lighting, Power Rear Windows w/Express Down, Power steering, Power windows, Preferred Equipment Group 1SA, Premium audio system: GMC Infotainment System, Radio da