3 months or 3,000 Powertrain Warranty included!2020 GMC Sierra 3500HD Denali Onyx Black WINDOW TINT, 10-Speed Automatic, 4WD, Dark Walnut/Dark Ash Grey Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2-Speed Active Transfer Case, 3.73 Rear Axle Ratio, 4G LTE Wi-Fi Hotspot Capable, 6 Rectangular Chromed Tubular Assist Steps, Alloy wheels, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-Dimming Inside Rearview Mirror w/Camera, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Bed View Camera, Bose Premium 7 Speaker Sound System, Driver Memory, Engine Block Heater, Exhaust Brake, Following Distance Indicator, Forge Perforated Leather-Appointed Seat Trim, Forward Collision Alert, Front Bucket Seats, Front dual zone A/C, Front fog lights, Fully automatic headlights, Garage door transmitter, GMC Connected Access Capable, HD Radio, HD Rear Vision Camera, HD Surround Vision w/2 Trailer View Camera Provisions, Heated door mirrors, Heated front seats, Heated rear seats, Heated steering wheel, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering System App, 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, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Multicolor 15 Diagonal Head-Up Display, Navigation System, OnStar & GMC Connected Services Capable, Polished Exhaust Tip, Power Door Locks, Power door mirrors, Power driver seat, Power passenger seat, Power Sliding Rear Window w/Defogger, Power Sunroof, Power windows, ProGrade Trailering System, Rear Cross Traffic Alert, Rear step bumper, Remote keyless entry, Remote Vehicle Starter System, Safety Alert Seat, SiriusXM w/360L, Speed control, Spray-On P