Clean CARFAX. Onyx Black 2019 GMC Sierra 3500HD SLT 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Allison 1000 6-Speed Automatic, 4WD, Black Leather, 110-Volt AC Power Outlet, 150 Amps Alternator, 4-Wheel Disc Brakes, 4.2" Diagonal Color Display Driver Info Center, 6 Speakers, 6-Speaker Audio System, ABS brakes, Adjustable pedals, Air Conditioning, AM/FM radio: SiriusXM, Auto-Dimming Inside Rear-View Mirror, Auto-dimming Rear-View mirror, Automatic temperature control, Bodyside moldings, Bose Speaker System, Brake assist, Bumpers: chrome, CD player, Chrome Bodyside Moldings, Chrome Door Handles, Chrome Power-Adjustable Heated Outside Mirrors, Chrome Recovery Hooks, Chrome Tailgate Handle (LPO), Color-Keyed Carpeted 1st & 2nd Row Floor Mats, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Delay-off headlights, Digital Steering Assist, Driver & Front Passenger Visors, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual-Zone Automatic Climate Control, Duramax Plus Package, Electric Rear-Window Defogger, Electronic Shift Transfer Case, Electronic Stability Control, Emergency communication system: OnStar and GMC connected services capable, Engine Block Heater, Exhaust Brake, Exterior Parking Camera Rear, EZ-Lift & Lower Tailgate, Floor Mounted Console, Front 40/20/40 Split Bench Seat, Front anti-roll bar, Front Center Armrest w/Storage, Front dual zone A/C, Front fog lights, Front Full Feature Bucket Seats, Front Halogen Fog Lamps, Front License Plate Kit, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Garage door transmitter, GMC 4G LTE, GMC Connected Access, HD Radio, Heated door mirrors, Heated Driver & Front Passenger Seats, Heated front seats, High Idle Switch, High-Intensity Discharge Headlights, Illuminated entry, Leather-Appointed Seat Trim, Leather-Wrapped Steering Wheel, LED Cargo Box Lighting, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Occupant sensing