Kevin--- When your window reaches the top or bottom let go of the up-down button. New cars have a safety switch to shut off the window motor at the up or down stop. Delorean doe's not, if you continue to hold the button down you will break the plastic shaft and gears running the whole works and be out several bucks (A LOT) to repair them. Just a helpful hint. Lloyd--3502 [Non-text portions of this message have been removed]