Onyx Black 2018 GMC Sierra 2500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Allison 1000 6-Speed Automatic, 4WD, Cocoa/Dark Sand w/Perforated Leather Appointed Seat Trim, 110-Volt AC Power Outlet, 150 Amps Alternator, 3.73 Rear Axle Ratio, 4-Wheel Disc Brakes, 4.10 Rear Axle Ratio, 7 Speakers, 8" Multi-Color Driver Instrument Info Display, ABS brakes, Adjustable pedals, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM, Apple CarPlay/Android Auto, Auto-dimming door mirrors, Auto-Dimming Inside Rear-View Mirror, Auto-dimming Rear-View mirror, Automatic temperature control, Black Frame-Mounted Front Recovery Hooks, Bluetooth® For Phone, Body-Color Front Bumper, Bodyside moldings, Bose 7 Speaker Sound System, Brake assist, Bumpers: body-color, Camper & 5th Wheel Trailer Wiring Provisions, CD player, Chrome Bodyside Moldings, Chrome Door Handles, Chrome Power-Adjustable Heated Outside Mirrors, Chrome Recovery Hooks, Chrome wheels, Color-Keyed Carpeted Floor Mats, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Delay-off headlights, Driver & Front Passenger Vanity Mirror Visors, Driver Alert Package, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Dual-Zone Automatic Climate Control, Duramax Plus Package, Electric Rear-Window Defogger, Electronic Shift Transfer Case, Electronic Stability Control, Engine Block Heater, Exhaust Brake, Exterior Parking Camera Rear, EZ-Lift & Lower Tailgate, Floor Mounted Console, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Full Feature Ventilated 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 & Ventilated Front Bucket Seats, Heated door mirrors, Heated Driver and Front Passenger Seats, Heated front seats, Heated Leather Wrapped Steering Wheel, Heated Power-Adjustable Outside Mirrors, Heated steering wheel, Heavy-Duty Handling/Trailering Suspension Package, High-Intensity Discharge Headlights, Hill Descent Control, Illuminated entry, Lane Departure Warning System, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Navigation System, Occupant sensing airbag, Off-Road Package, OnStar & GMC Connected Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather Appointed Seat Trim, Power door mirrors, Power driver seat, Power passenger seat, Power Sliding Rear Window w/Defogger, Power steering, Power Sunroof, Power windows, Power Windows w/Driver Express Up & Down, Power-Adjustable Pedals For Accelerator & Brake, Preferred Equipment Group 5SA, Premium audio system: GMC Infotainment System, Radio: AM/FM/SiriusXM/HD w/Navigation, Rear 60/40 Folding Bench Seat (Folds Up), Rear Body-Color Bumper w/Bumper CornerSteps, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote Keyless Entry, Remote keyless entry, Remote Vehicle Starter System, Security system, Single Slot CD/MP3 Player, SiriusXM Satellite Radio, Speed control, Speed-sensing steering, Split folding rear seat, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Tachometer, Telescoping steering wheel, Theft Deterrent System (Unauthorized Entry), Tilt steering wheel, Traction control, Trailer Brake Controller, Trailering Equipment, Trip computer, Turn signal indicator mirrors, Ultrasonic Front & Rear Park Assist, Universal Home Remote, Variably intermittent wipers, Ventilated front seats, Voltmeter, Wheels: 20" 6-Spoke Polished Aluminum, Wheels: 20" Chrome Cast Aluminum, Wireless Charging, Allison 1000 6-Speed Automatic, 4WD, Cocoa/Dark Sand w/Perforated Leather Appointed Seat Tri