What does it mean when the overdrive light is on?
What does it mean when the overdrive light is on? If the overdrive light comes on and stays on, you have nothing to worry about. Overdrive is simply a mechanism that allows your car to maintain a steady speed while you are driving, and reduces engine speed by shifting your car into a gear ratio that is higher than the drive gear. What causes the overdrive light to flash on a Ford Explorer? There is a transmission range fuse. It can cause your vehicle to go into limp mode and you od light at the end of you shifter to...