I read this on another forum but just tried it myself and it works perfectly. My front passenger side window didn't fully recess into the door when it was all the way down. It wasn't bad enough to call service as it was only 1/8 of an inch or so above the trim. To reset it and get it to go all the way I held the switch down (from a full up position) for around 10 seconds, at that point it recessed all the way. It goes back up to the same place but now goes an the way down.