Certified. Quicksilver Metallic 2021 GMC Sierra 2500HD SLT 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Carfax One Owner, 4X4 / Four Wheel Drive, Android Auto, Apple Car Play, Bedliner, Bose Premium Audio, Forward Collision Alert, Heated Front Seats, 10-Speed Automatic, 4WD, Jet Black Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 USB Ports, 2 USB Ports (1st Row), 2-Speed Active Transfer Case, 2nd Row Dual USB Charge-Only Ports, 4.2 Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, 6-Speaker Audio System Feature, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7 Speaker Sound System, Chrome Surround Grille w/High Gloss Black Mesh, Compass Located In Instrument Cluster, Deep-Tinted Glass, Driver Alert Package I, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Floor-Mounted Center Console, Front Bucket Seats, GMC Connected Access Capable, HD Radio, HD Surround Vision, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Hill Descent Control, Integrated Trailer Brake Controller, Keyless Open & Start, Lane Change Alert w/Side Blind Zone Alert, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Manual Tilt-Wheel/Telescoping Steering Column, Off-Road Suspension, OnStar & GMC Connected Services Capable, Perimeter Lighting, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Rear Windows w/Express Down, Power Sliding Rear Window w/Defogger, Power Windows w/Driver Express Up/Down, Preferred Equipment Group 4SA, Premium audio system: Premium GMC Infotainment System, Radio: AM/FM w/Premium GMC Infotainment System, Radio: Premium GMC Infotainment Sys w/Navigation, Rear Cross Traffic Alert, Rear Wheelhouse Liners, Remote Vehicle Starter System, SiriusXM w/360L, SLT Convenience Package, SLT Preferred Package, Steering Wheel Audio Controls, Suspension Package, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Wireless Charging, Wireless Phone Projection, X31 Off-Road Package. Driver Alert Package I (Lane Change Alert w/Side Blind Zone Alert, Perimeter Lighting, Rear Cross Traffic Alert, and Ultrasonic Front & Rear Park Assist), Preferred Equipment Group 4SA (12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2-Speed Active Transfer Case, 2nd Row Dual USB Charge-Only Ports, 4.2 Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, Chrome Surround Grille w/High Gloss Black Mesh, Compass Located In Instrument Cluster, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, GMC Connected Access Capable, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel/Telescoping Steering Column, OnStar & GMC Connected Services Capable, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Rear Windows w/Express Down, Power Windows w/Driver Express Up/Down, Rear Wheelhouse Liners, Remote Vehicle Starter System, Steering Wheel Audio Controls, Unauthorized Entry Theft-Deterrent System, and Wireless Phone Projection), SLT Convenience Package (10-Way Power Driver Seat Adjuster w/Lumbar, 2 USB Ports, 2 USB Ports (1st Row), Floor-Mounted Center Console, Front Bucket Seats, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, LED Smoked Amber Roof Marker Lamps, Power Sliding Rear Window w/Defogger, and Universal Home Remote), SLT Preferred Package (Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7 Speaker Sound System, HD Surround Vision, Radio: Premium GMC Infotainment Sys w/Navigation, and Wireless Charging), Suspension Package, X31 Off-Road Package (Hill Descent Control and O
