Recent Arrival! This 2021 GMC Sierra 3500HD SLE in Onyx Black comes with the following features: Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WD 10-Speed Automatic, 4WD, and Black Cloth Preferred Equipment Group 3SA (2-Speed Electronic Shift Transfer Case, 4G LTE Wi-Fi Hotspot Capable, Chrome Surround Grille w/High Gloss Black Mesh, Compass Located In Instrument Cluster, Deep-Tinted Glass, GMC Connected Access Capable, Integrated Trailer Brake Controller, OnStar & GMC Connected Services Capable, Power Door Locks, Power Front Windows w/Driver Express Up/Down, Power Front Windows w/Passenger Express Down, Power Rear Windows w/Express Down, Remote Keyless Entry, SiriusXM Radio, and Steering Wheel Audio Controls), Suspension Package, 10-Speed Automatic, 4WD, Black Cloth, 10-Way Power Driver Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 17 Painted Steel Wheels, 170 Amp Alternator, 220 Amp Alternator, 2nd Row Dual USB Charge-Only Ports, 4-Way Manual Driver Seat Adjuster, 4-Way Manual Passenger Seat Adjuster, 4-Wheel Disc Brakes, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, AM/FM radio: SiriusXM, Apple CarPlay/Android Auto, Brake assist, Bumpers: chrome, Cloth Seat Trim, Compass, Delay-off headlights, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Dual rear wheels, Dual-Zone Automatic Climate Control, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Electronic Stability Control, Engine Block Heater, Exhaust Brake, Front 40/20/40 Split-Bench Seat, Front 40/20/40 Split-Bench Seat w/Storage, Front anti-roll bar, Front Center Armrest w/Storage, Front License Plate Kit, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated Steering Wheel, Heavy-Duty 80 Amp Battery, Illuminated entry, Keyless Open & Start, LED Fog Lamps, Low tire pressure warning, Manual Tilt-Wheel & Telescoping Steering Column, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Power door mirrors, Power steering, Power windows, Power-Adjustable Black Outside Mirrors, Premium audio system: GMC Infotainment System, Radio: AM/FM w/GMC Infotainment System, Rear reading lights, Remote keyless entry, Remote Vehicle Starter System, Rubberized-Vinyl Floor Covering, Speed control, Split folding rear seat, Steering wheel mounted audio controls, Steering Wheel-Mounted Cruise Control, Tachometer, Tilt steering wheel, Traction control, Trip computer, Turn signal indicator mirrors, Unauthorized Entry Theft-Deterrent System, Variably intermittent wipers, Voltmeter, and Winter Grille Cover.