Major Options / Build: Navigation System, Preferred Package, Blind Spot Monitoring, Trailer Package, Parking Sensors, Premium Package, Heated Seats, Android Auto, CarPlay, Backup Camera, Remote Start, Off Road Package, 5th Wheel

Additional Description: Carbon Black Metallic 2020 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 12-Volt Rear Auxiliary Power Outlet, 2 USB Ports, 2 USB Ports (1st Row), 220 Amps Alternator, 2nd Row Dual USB Charge-Only Ports, 2-Speed Active Transfer Case, 3.42 Axle Ratio, 3.73 Rear Axle Ratio, 4.2" Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, 4-Wheel Disc Brakes, 6 Speakers, 6" Rectangular Black Tubular Assist Steps (LPO), 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, AM/FM radio: SiriusXM, Apple CarPlay/Android Auto, AT4 Preferred Package, AT4 Premium Package, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Bed View Camera, Black Front & Rear Molded Splash Guards (LPO), Bose Premium 7 Speaker Sound System, Brake assist, Bumpers: body-color, Compass, Compass Located In Instrument Cluster, Deep-Tinted Glass, Delay-off headlights, Driver Alert Package I, 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, Engine Block Heater, Exhaust Brake, Floor-Mounted Center Console, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Connected Access Capable, Gooseneck/5th Wheel Package, Gooseneck/5th Wheel Prep Package, HD Radio, HD Rear Vision Camera, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hill Descent Control, Hitch Guidance w/Hitch View, Illuminated entry, Integrated Trailer Brake Controller, In-Vehicle Trailering System App, Keyless Open & Start, Lane Change Alert w/Side Blind Zone Alert, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Occupant sensing airbag, Off-Road Suspension, OnStar & GMC Connected Services Capable, Outside temperature display, Overhead airbag, Overhead console, Painted Black Surround Grille, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, Pickup Box, Power Door Locks, Power door mirrors, Power driver seat, Power Front Passenger Windows w/Express Up/Down, Power passenger seat, Power Rear Windows w/Express Down, Power Sliding Rear Window w/Defogger, Power steering, Power windows, Power Windows w/Driver Express Up/Down, Preferred Equipment Group 4SB, Premium audio system: Premium GMC Infotainment System, Radio: AM/FM w/Premium GMC Infotainment System, Radio: Premium GMC Infotainment Sys w/Navigation, Rear Cross Traffic Alert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote keyless entry, Remote Vehicle Starter System, Security system, SiriusXM w/360L, Snow Plow Prep/Camper Package, Speed control, Speed-sensing steering, Split folding rear seat, Spray-On Pickup Box Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Tachometer, Telescoping steering wheel, Tilt steering wheel, Traction control, Trailer Tire Pressure Monitor Sensors, Trip computer, Turn signal indicator mirrors, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Variably intermittent wipers, Ventilated front seats, Voltmeter, Wheels: 18" 6-Spoke Machined Aluminum, Wheels: 20" 6-Spoke Bright Machined Aluminum, WinPreferred Equipment Group 4SB,3.73 Rear Axle Ratio,3.42 Axle Ratio,Wheels: 18" 6-Spoke Machined Aluminum,Wheels: 20" 6-Spoke Bright Machined Aluminum,Front Bucket Seats,Perforated Leather-Appointed Front Seat Trim,10-Way Power Driver Seat Adjuster w/Lumbar,AT4 Preferred Package,AT4 Premium Package,Driver Alert Package I,Radio: AM/FM w/Premium GMC Infotainment System,Radio: Premium GMC Infotainment Sys w/Navigation,Electric Rear-Window Defogger,OnStar & GMC Connected Services Capable,Bed View Camera,120-Volt Instrument Panel Power Outlet,Spray-On Pickup Box Bed Liner w/AT4 Logo,Deep-Tinted Glass,Front License Plate Kit,LED Smoked Amber Roof Marker Lamps,LED Cargo Area Lighting,Pickup Box,6" Rectangular Black Tubular Assist Steps (LPO),Black Front & Rear Molded Splash Guards (LPO),Snow Plow Prep/Camper Package,Integrated Trailer Brake Controller,Gooseneck/5th Wheel Package,Trailer Tire Pressure Monitor Sensors,220 Amps Alternator,Engine Block Heater,Skid Plates,Off-Road Suspension,2-Speed Active Transfer Case,Driver Memory,Power Sliding Rear Window w/Defogger,10-Way Power Passenger Seat Adjuster w/Lumbar,GMC Connected Access Capable,Power Front Passenger Windows w/Express Up/Down,Power Rear Windows w/Express Down,Keyless Open & Start,Power Door Locks,Power Windows w/Driver Express Up/Down,Rear Wheelhouse Liners,Winter Grille Cover,Remote Vehicle Starter System,Compass Located In Instrument Cluster,Floor-Mounted Center Console,Painted Black Surround Grille,Hill Descent Control,Exhaust Brake,Wireless Charging,Heated Driver & Front Outboard Passenger Seats,Heated 2nd Row Outboard Seats,120-Volt Bed Mounted Power Outlet,12-Volt Rear Auxiliary Power Outlet,Heated & Ventilated Front Bucket Seats,Heavy-Duty 80 Amp Battery,2 USB Ports,2 USB Ports (1st Row),Electrical Lock Control Steering Column,Manual Tilt-Wheel/Telescoping Steering Column,Hitch Guidance w/Hitch View,In-Vehicle Trailering System App,SiriusXM w/360L,HD Radio,Ultrasonic Front & Rear Park Assist,4.2" Diagonal Color Display Driver Info Center,Rear Cross Traffic Alert,Universal Home Remote,Steering Wheel Audio Controls,Lane Change Alert w/Side Blind Zone Alert,Bose Premium 7 Speaker Sound System,6-Speaker Audio System Feature,2nd Row Dual USB Charge-Only Ports,Unauthorized Entry Theft-Deterrent System,HD Rear Vision Camera,4G LTE Wi-Fi Hotspot Capable,X31 Off-Road Package,Gooseneck/5th Wheel Prep Package,4-Wheel Disc Brakes,6 Speakers,Air Conditioning,Electronic Stability Control,Front Center Armrest,Tachometer,Voltmeter,ABS brakes,Auto-dimming door mirrors,Automatic temperature control,Brake assist,Bumpers: body-color,Delay-off headlights,Driver door bin,Driver vanity mirror,Dual front impact airbags,Dual front side impact airbags,Front anti-roll bar,Front dual zone A/C,Front fog lights,Front reading lights,Front wheel independent suspension,Fully automatic headlights,Heated door mirrors,Heated front seats,Heated rear seats,Heated steering wheel,Illuminated entry,Low tire pressure warning,Memory seat,Occupant sensing airbag,Outside temperature display,Overhead airbag,Overhead console,Panic alarm,Passenger door bin,Passenger vanity mirror,Power door mirrors,Power driver seat,Power passenger seat,Power steering,Power windows,Rear reading lights,Rear seat center armrest,Rear step bumper,Rear window defroster,Remote keyless entry,Security system,Speed control,Speed-sensing steering,Split folding rear seat,Steering wheel mounted audio controls,Telescoping steering wheel,Tilt steering wheel,Traction control,Trip computer,Turn signal indicator mirrors,Variably intermittent wipers,Ventilated front seats,Auto-dimming Rear-View mirror,Compass,AM/FM radio: SiriusXM,Remote engine start: keyfob,Premium audio system: Premium GMC Infotainment System,Apple CarPlay/Android Auto