Now that you mentioned it that way, i believe my car is operating in third gear. I think it fell from 4th down to 3rd since it happened while i was at highway speed. Is there a way to disengage the OD? Also will driving in 3rd gear at highway speeds (65mph) harm the transmission? I'm doing it 5days ...

I was driving on the freeway and my car shifted into overdrive all by itself. Before this happened i could feel the shift to OD whan i pressed the button on the shift handle. I pressed the button when that happened but i could not feel the shift to overdrive. Now when i press the button, i get no re...