the speed odamter

Not sure what you mean. Have you changed the tire size and need to recalibrate the speedometer to calibrate it? Perhaps call a speedometer/ instrument repair shop you will find the on the internet. Palo Alto speedometer SF Bay Area, and West Valley Instruments in Redesda in LA are two places I have used. Kia as a car manufacturer put a lot of great technical information and work shop manuals on line for free for Kia owners. www.kiatechinfo.com