6-Speed Automatic Electronic with Overdrive 4WD Black Leather. 2017 GMC Sierra 1500 SLT White Frost Tricoat 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8Awards: * 2017 KBB.com Brand Image Awards**Vehicle Options listed are when the unit was originally built. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.
