DO NOT TOUCH YOUR WINDSCREEN WIPERS! At all, dont even look at them. If you lift them up even a little bit the motors will desync because it is a dual motor system. If you do move them do not turn them on and drive to your dealer and have them synced back up again. If you do have to touch them key the ignition key off this will put the motors into lock mode and will stay like that for only 5 mins (so long enough to change your wipers) after the five minutes the motors will unlock. Trust me it sucks to have to re-sync them and be the dumbass that did it.