10-Speed Automatic, 4WD, Dark Walnut/Slate Leather.This Vehicle Includes the Following Options: High Capacity Suspension Package, Preferred Equipment Group 4SA (120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 170 Amp Alternator, 2 Charge/Data USB Ports, 2 Type-C Charge-Only Rear USB Ports, 6-Speaker Audio System Feature, Auto-Locking Rear Differential, Auxiliary External Transmission Oil Cooler, Chrome Header & Chrome Grille Insert Bars, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Steering Column Lock, Front Frame-Mounted Black Recovery Hooks, Front Rainsensing Wipers, GMC Connected Access Capable, HD Rear Vision Camera, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel & Telescoping Steering Column, OnStar & GMC Connected Services Capable, Perimeter Lighting, 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, Push Button Start, Rear Wheelhouse Liners, Remote Vehicle Starter System, SiriusXM w/360L, Steering Wheel Audio Controls, Theft Deterrent System (Unauthorized Entry), Wi-Fi Hotspot Capable, and Wireless Phone Projection), ProGrade Trailering System (Hitch Guidance w/Hitch View, In-Vehicle Trailering App, and Integrated Trailer Brake Controller), Sierra Safety Plus Package (HD Surround Vision, Rear Cross Traffic Braking, Rear Pedestrian Detection, Safety Alert Seat, Trailer Camera Provisions, Trailer Side Blind Zone Alert, and Ultrasonic Front & Rear Park Assist), SLT Convenience Package (2 Charge/Data USB Ports Inside Center Console, Electronic Precision Shift, Floor-Mounted Center Console, Front Bucket Seats, Power Rake & Telescoping Steering Column, Premium Bose 7-Speaker Sound System, Ventilated Driver & Front Passenger Seats, and Wireless Charging), SLT Preferred Package (Adaptive Cruise Control, Heated 2nd Row Outboard Seats, Power Sliding Rear Window w/Rear Defogger, and Universal Home Remote), SLT Premium Plus Package (20 Polished Aluminum Wheels, Chrome Wheel To Wheel Assist Steps, and Spray-On Pickup Bed Liner w/GMC Logo), Standard Suspension Package, Trailering Package (Hitch Guidance), X31 Off-Road Package (Dual Exhaust System, Heavy-Duty Air Filter, Hill Descent Control, Off-Road Suspension, and X31 Hard Badge), 10-Speed Automatic, 4WD, Dark Walnut/Slate Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 3.23 Rear Axle Ratio, 4-Wheel Disc Brakes, 6 Speakers, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Brake assist, Buckle to Drive, Bumpers: chrome, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Emergency communication system: OnStar and GMC connected services capable, Following Distance Indicator, Forward Collision Alert, 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 Pedestrian Braking, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heated door mirrors, Heated Driver & Front Outboard Passenger Seating, Heated front seats, Heated steering wheel, Illuminated entry, IntelliBeam Automatic High Beam On/Off, Lane Keep Assist w/Lane Departure Warning, Low tire pressure warning, Memory seat, Navigation System, Not Equipped w/Steering Column Lock, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perf Leather-Appointed Front Outboard Seat Trim, Power door mirrors, Power driver seat, Power passenger seat, Power steering, Power windows, Premium audio sy