Today's transmissions are shifted by solenoids, sensors. As a result, if one fails, it can shut everything down. What I recommend is to have the computer scanned by a trans shop. If this happened all at once, chances are there will be a trouble code that will help identify where the problem is coming from.
Please note: I am assuming that the trans fluid is clean and full. If it is too low, this can happen too.
Thursday, January 13th, 2011 AT 8:19 PM