transaxle on 2003 Mazda Protege5

I was driving and it wasn't shifting gears. Then it said transaxle. Now it seems fine should I leave it alone?

Asked by for the 2003 Mazda Protege5
I would have the diagnostic trouble codes checked, there were likely some stored in the engine or transmission control module. Problems like this may not come back, but more often than not they re-appear.