Onyx Black 2023 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel, POWER MOONROOF, NAVIGATION, HEADS UP DISPLAY, GOOSENECK 5TH WHEEL PKG, AT4 PREMIUM PKG, POWER RUNNING BOARDS, BED VIEW CAMERA, HD SURROUND VISION, BOSE PREMIUM AUDIO, BLIND ZONE ALERT, LANE CHANGE ALERT, REAR CROSS TRAFFIC ALERT, REAR CAMERA MIRROR, FRONT AND REAR PARK ASSIST, SHARP 20'' WHEELS W/NEWER BF GOODRICH TIRES, HEATED AND COOLED LEATHER SEATS, HEATED STEERING WHEEL, HEATED 2ND ROW, REMOTE START, X31 OFF ROAD SUSPENSION, TRAILER TOW PKG, ONE OWNER AND EXCELLENT CONDITION! OTHER OPTIONS INCLUDE: 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 USB Ports, 2 USB Ports (1st Row), 2-Speed Active Transfer Case, 20 Machined Aluminum Wheels, 220 Amps Alternator, 2nd Row Dual USB Charge-Only Ports, 4-Wheel Disc Brakes, 4.2 Diagonal Color Display Driver Info Center, 8 Driver Information Center, ABS brakes, Air Conditioning, Apple CarPlay/Android Auto, AT4 Preferred Package, AT4 Premium Plus Package, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Bed View Camera w/2 Trailer Camera Provisions, 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 Alert Package II, 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, Emergency communication system: OnStar and GMC connected services capable, Engine Block Heater, Exhaust Brake, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front Prem Floor Liners w/Removable Carpet Insert, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Connected Access Capable, Gooseneck/5th Wheel Package, Gooseneck/5th Wheel Prep Package, HD Rear Vision Camera, HD Surround Vision w/2 Trailer View Camera Provisions, 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, In-Vehicle Trailering System App, Inside Rearview Auto-Dimming Rear Camera Mirror, Integrated Trailer Brake Controller, IntelliBeam Automatic High Beam On/Off, Keyless Open & Start, Lane Change Alert w/Side Blind Zone Alert, Lane Departure Warning System, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Multicolor 15 Diagonal Head-Up Display, Occupant sensing airbag, Off-Road High Clearance Step (LPO), 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, Perimeter Lighting, 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 Sunroof, Power windows, Power Windows w/Driver Express Up/Down, Power-Retractable Black Assist Steps, Preferred Equipment Group 4SB, Radio: AM/FM w/Prem GMC Infotainment System!