"Onyx Black 2026 GMC Sierra 3500HD SLE 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Black Cloth, 10-Way Power Driver Seat Adjuster with Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge/Data USB Ports, 2 Speakers, 2-Speaker Audio System Feature, 2-Speed Electronic Shift Transfer Case, 220 Amp Alternator, 4-Way Manual Driver Seat Adjuster, 4-Way Manual Passenger Seat Adjuster, 4-Wheel Disc Brakes, 4"" Round Black Tubular Assist Steps, ABS brakes, Air Conditioning, AM/FM radio: SiriusXM with 360L, Auto High-beam Headlights, Auto-Dimming Inside Rear-View Mirror, Automatic Emergency Braking, Brake assist, Buckle to Drive, Bumpers: chrome, Chrome Surround Grille with Chrome Insert Bars, Cloth Seat Trim, Compass, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Dual-Zone Automatic Climate Control, Electric Rear-Window Defogger, Electronic Stability Control, Emergency communication system: OnStar Services capable, Engine Block Heater, Exhaust Brake, Exterior Parking Camera Rear, Following Distance Indicator, Forward Collision Alert, Front 40/20/40 Split-Bench Seats with Lockable Storage, Front anti-roll bar, Front Center Armrest w/Storage, Front Pedestrian Braking, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Premium 13.4"" Diagonal Information Display, Gooseneck/5th Wheel Prep Package, Heated door mirrors, Heavy-Duty 80 Amp-Hour Battery, Illuminated entry, IntelliBeam Automatic High Beam on/Off, Keyless Open and Start, Lane Departure Warning System, LED Fog Lamps, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Pickup Bed, Power door mirrors, Power steering, Power windows, Power-Adjustable Black Outside Mirrors, Preferred Equipment Group 3SA, Premium audio system: Premium GMC Infotainment System, Push Button Start, Radio: AM/FM Stereo with Premium GMC Infotainment System, Rear step bumper, Remote keyless entry, Remote Start Package, Remote Vehicle Starter System, SiriusXM with 360L Trial Subscription, SLE Convenience Package, Speed control, Spray-on Pickup Bedliner with GMC Logo, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Suspension Package, Tachometer, Tilt steering wheel, Traction control, Trip computer, Turn signal indicator mirrors, Unauthorized Entry Theft-Deterrent System, Variably intermittent wipers, Voltmeter, Winter Grille Cover, Wireless Phone Projection, 10-Speed Automatic, 4WD, Black Cloth."