overdriver wont come on

Do you mean Overdrive , your transmission won't shift in to the highest gear? First, is there a dash indicator light on? O/D light on or blinking means a electrical problem as been detected, usually within the valve body of the transmission. The shift solenoids. It could either be a solenoid itself for the wires connecting to the solenoid. Have your codes read at a large parts store. They will do it free..write them down and come back here..one of us will help you decide the next step.

Hello there my 2010 Kia Rio LX overdrive won't turn on it stays off I keep pressing the button doesn't turn on what can I do to fix that problem I don't have a lot of money my name is Noe Lugo Email is Pelonmex40@aol.com

I just started experiencing this week on 2008 Rio, weirdly just after getting tires replaced. Maybe they damaged a sensor or wiring.