One problem related to wiper has been reported for the 2013 Volkswagen Jetta Sportwagen. The most recently reported issues are listed below.
Front sunroof glass (the portion that moves when the glass is opened) spontaneously shattered. This occurred while driving at ~70mph on a smooth highway in minimal traffic; clear weather, roughly 60 degrees f. I did not pass under any overpasses immediately preceding this event. I normally leave the sun shade back and did not notice any cracks. As I was driving, I heard a very loud noise and immediately glass started falling on me and throughout the cabin. I slowed and exited the interstate, pulled into a safe area and immediately took pictures and called my insurance. The remaining glass appears to be bowed upwards.