Sterling Metallic 2025 GMC Sierra 2500HD Denali Ultimate 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Sierra 2500HD Denali Ultimate, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 4WD, Alpine Umber Leather, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports Inside Center Console, 2 USB Ports, 2-Speed Active Transfer Case, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium Series 12-Speaker System, Deep-Tinted Glass, Electric Rear-Window Defogger, Floor-Mounted Center Console, Front Rain-Sensing Wipers, Gooseneck/5th Wheel Prep Package, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Hill Descent Control, Inside Rearview Auto-Dimming Rear Camera Mirror, Keyless Open & Start, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Manual Tilt-Wheel/Telescoping Steering Column, Max Trailering Package, Multicolor 15'' Diagonal Head-Up Display, OnStar Services Capable, Power Front Passenger Windows w/Express Up/Down, Power Sliding Rear Window w/Defogger, Power Sunroof, Preferred Equipment Group 5SB, Push Button Start, Rear Cross Traffic Alert, Rear Wheelhouse Liners, Remote Vehicle Starter System, Safety Alert Seat, Signature Denali Ultimate Grille in Vadar Chrome, SiriusXM w/360L Trial Subscription, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Technology Package, Trailer Cam Provisions & Trailer Viewing Software, Trailer Side Blind Zone Alert, Trailer Tire Pressure Monitor Sensors, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Ventilated Driver & Front Passenger Seats, Wireless Charging, Wireless Phone Projection, X31 Off-Road Package, 12 Speakers, 16-Way Power Driver Seat Adjuster w/Lumbar, 16-Way Power Passenger Seat Adjuster w/Lumbar, 220-Amp Alternator, 3.42 Axle Ratio, 4-Wheel Disc Brakes, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: