2023 GMC Sierra 3500HD AT4

This 2023 GMC Sierra 3500HD AT4 4WD in Onyx Black delivers heavy-duty performance and premium off-road capability, powered by the renowned 6.6L Duramax V8 Turbodiesel mated to a 10-speed automatic transmission. Outfitted with the AT4 Preferred Package, this truck includes premium leather seating with ventilated front seats, a power sunroof, and a spray-in bedliner. The Driver Alert Package enhances safety with features like lane departure warning, forward collision alert, and front/rear park assist. The X31 Off-Road Package adds skid plates, off-road suspension, hill descent control, and twin-tube Rancho shocks, making it ready for demanding terrain while maintaining comfort and refinement.

Clean CARFAX.

Visit us at ClearShift.com for more details! Or call us at (720) 390-7910 for our Highlands Ranch location or (970) 251-1063 for our Loveland location. This vehicle is guaranteed to include one key. Additional keys are neither guaranteed nor promised. ALL SALES FINAL: The equipment listed above and below is the configuration of the vehicle as originally sold. ClearShift makes every effort to provide accurate information, however, some features listed may vary due to features being added, changed or removed during previous ownership. It is the buyer's responsibility to verify all desired features and equipment are present prior to purchase.


Sierra 3500HD AT4, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Onyx Black, Jet Black w/Kalahari Accents w/Perforated Leather-Appointed Front Seat Trim, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 USB Ports (First Row), 2 USB Ports Inside Console, 2-Speed Active Transfer Case, 2nd Row Dual USB Charge-Only Ports, 3.42 Rear Axle Ratio, 4.2" Diagonal Color Display Driver Info Center, AT4 Preferred Package, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7 Speaker Sound System, 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, GMC Connected Access Capable, Gooseneck/5th Wheel Package, HD Rear Vision Camera, HD Surround Vision w/2 Trailer View Camera Provisions, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Hill Descent Control, Hitch Guidance w/Hitch View, In-Vehicle Trailering System App, 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, Navigation System, OnStar & GMC Connected Services Capable, Painted Blk Surround Grille w/High Gloss Blk Mesh, Perimeter Lighting, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power Rear Windows w/Express Down, Power Sliding Rear Window w/Defogger, Power Sunroof, Preferred Equipment Group 4SB, Prem Front Floor Liners w/Removable Carpet Insert, Prem Rear Floor Liners w/Removable Carpet Insert, ProGrade Trailering System, Radio: AM/FM w/Prem GMC Infotainment System & Navi, Rear Cross Traffic Alert, Rear Wheelhouse Liners, Red Recovery Hooks, Remote Vehicle Starter System, Spray-On Pickup Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Ventilated Driver & Front Passenger Seats, Wi-Fi Hotspot Capable, Wireless Charging, Wireless Phone Projection, X31 Off-Road Package.