This is the second time this has happened to me. I walked into the garage. Pressed the button to open the garage door. Got into 2004 RX 330. Started the vehicle. When I put the vehicle in reverse and started to back out the garage door started coming down. This time it damaged the light housing above the back window. I have not activated the Homelink system or whatever the interal system is called. I finally had to disconnect the door and back the RX out and then reconnect the door.