I had this happen to my 07 where it would not go up it just beeped. I checked the partition and it was ok still nothing. I got back in shut the car off took the key out for a few seconds and restarted it. I then tried it and it worked first time and I don't think it has done it again. I asked a crossfire tech what the beck and he said yeah sometimes you have to do that for the computer and sensors to run their checks and reset. I hope this helps someone.