Most frameless window cars now have a drip edge around the window that's supposed to keep moisture away from the door seals. The window goes down a bit in orde

Most frameless window cars now have a drip edge around the window that's supposed to keep moisture away from the door seals. The window goes down a bit in order for the window to clear the drip edge. If your battery goes dead in one, then the window will catch a little and pull. It's okay if it happens a few times, but over time it will probably pull the window off of the tracks.