The OD button means "Over Drive", off or on.
it means the overdrive is not on.
There is a problem with the Overdrive. Seek professional help.
"Over Drive Off"
a malfuntion has been detected
A malfunction has been detected
OD= Overdrive. There will be a switch to engage/disengage the OD located on the shifter, or on the console in close proximity to the shift lever. It should even have a marking on it.
the over drive is off. On some cars, it stays on automatically and when you press a button , it will turn it off light up that light.
od light is the overdrive unit on the transmission. If you drive on the freeway you should have the overdrive unit on, on the streets the unit should be off. The light usually doesn't have anything to do with overheating. I would look for some other issue.