10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather. SUNROOF CARFAX One-Owner. Summit White 2023 GMC Sierra 3500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel AT4 Preferred Package (Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7 Speaker Sound System, HD Surround Vision w/2 Trailer View Camera Provisions, Hitch Guidance w/Hitch View, LED Smoked Amber Roof Marker Lamps, Power Sliding Rear Window w/Defogger, Radio: AM/FM w/Prem GMC Infotainment System & Navi, Universal Home Remote, and Wireless Charging), AT4 Premium Plus Package (Off-Road High Clearance Step (LPO) and Power Sunroof), Cargo Convenience Package (Console-Mounted Safe (LPO) and Rear Underseat Storage (LPO)), Driver Alert Package I (Lane Change Alert w/Side Blind Zone Alert, Perimeter Lighting, Rear Cross Traffic Alert, and Ultrasonic Front & Rear Park Assist), Driver Alert Package II (Automatic Emergency Braking, Following Distance Indicator, Forward Collision Alert, IntelliBeam Automatic High Beam On/Off, Lane Departure Warning System, and Safety Alert Seat), Gooseneck/5th Wheel Package, Gooseneck/5th Wheel Prep Package, Preferred Equipment Group 4SB (12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 USB Ports (First Row), 2 USB Ports Inside Console, 2-Speed Active Transfer Case, 2nd Row Dual USB Charge-Only Ports, 4.2 Diagonal Color Display Driver Info Center, Compass Located In Instrument Cluster, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Floor-Mounted Center Console, GMC Connected Access Capable, HD Rear Vision Camera, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, In-Vehicle Trailering System App, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel/Telescoping Steering Column, OnStar & GMC Connected Services Capable, Painted Blk Surround Grille w/High Gloss Blk Mesh, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power Rear Windows w/Express Down, Prem Front Floor Liners w/Removable Carpet Insert, Prem Rear Floor Liners w/Removable Carpet Insert, ProGrade Trailering System, Rear Wheelhouse Liners, Red Recovery Hooks, Remote Vehicle Starter System, Spray-On Pickup Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Unauthorized Entry Theft-Deterrent System, Ventilated Driver & Front Passenger Seats, Wi-Fi Hotspot Capable, and Wireless Phone Pro