3500HD 4WD Crew Cab – Onyx Black with Jet Black interior, power driver seat, power sliding rear window, memory seeting mirrors, deep tint rear glass, power door locks, keyless open, safety package, push button start, power windows, assist steps power retractable with led perimeter lighting, rear bumper cornersteps, power sunroof, technology package, hitch guidance, rear camera mirror, trailering mirrors outside heated power auto dimming, auto climate control dual zone, driver’s safety alert seat, engine block heater, engine exhaust brake, wireless charging, trailer brake controller, heated front seats, heated steering wheel, transmission oil cooler, adaptive cruise control, denali reserve package; rear camera mirror, multicolor 15” diagonal head up display, hitch view, rear seat reminder, trailer camera provisions, led roof marker lamps, front and rear park assist, trailering app, following distance indicator, forward collision alert, lane departure warning, rear cross traffic alert, auto emergency braking, tire pressure monitor, bose speaker system, HD surround vision, bed view camera, steering wheel audio controls, trailer side blind zone alert, trailering equipment.