Summit White 2026 GMC Sierra 3500HD SLT 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Dark Walnut/Slate Leather, 10-Way Power Driver Seat Adjuster with Lumbar, 10-Way Power Passenger Seat Adjuster with Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports, 2 Charge/Data USB Ports Inside Center Console, 2-Speed Active Transfer Case, 220 Amp Alternator, 4-Wheel Disc Brakes, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, AM/FM radio: SiriusXM with 360L, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Bose Premium 7-Speaker Sound System, Brake assist, Buckle to Drive, Bumpers: chrome, Chrome Surround Grille with Chrome Insert Bars, Compass, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electronic Stability Control, Emergency communication system: OnStar Services capable, Engine Block Heater, Exhaust Brake, Exterior Parking Camera Rear, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front 40/20/40 Split-Bench Seats with Lockable Storage, Front anti-roll bar, Front Bucket Seats, Front Center Armrest w/Storage, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front Pedestrian Braking, Front Rain-Sensing Wipers, 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, Heated Driver and Front Outboard Passenger Seats, Heated front seats, Heated steering wheel, Heavy-Duty 80 Amp-Hour Battery, Hitch Guidance with Hitch View, Hitch Package, Illuminated entry, IntelliBeam Automatic High Beam on/Off, Keyless Open and Start, Lane Departure Warning System, LED Cargo Area Lighting, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Outboard Seat Trim, Pickup Bed, Power door mirrors, Power driver seat, Power Front Windows with Passenger Express Up/Down, Power passenger seat, Power steering, Power windows, Preferred Equipment Group 4SA, Premium audio system: Premium GMC Infotainment System, Push Button Start, Radio: AM/FM Stereo with Premium GMC Infotainment System, Rain sensing wipers, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote keyless entry, Remote Vehicle Starter System, Security system, SiriusXM with 360L Trial Subscription, SLT Convenience Package, Speed control, Speed-sensing steering, Split folding rear seat, Spray-on Pickup Bedliner with GMC Logo, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Suspension Package, Tachometer, Telescoping steering wheel, Tilt steering wheel, Traction control, Trip computer, Turn signal indicator mirrors, Unauthorized Entry Theft-Deterrent System, Variably intermittent wipers, Ventilated Driver and Front Passenger Seats, Voltmeter, Winter Grille Cover, Wireless Charging, Wireless Phone Projection, 10-Speed Automatic, 4WD, Dark Walnut/Slate Leather.