A glass going up and down in automatic windows door consumes a lots of battery. I've the problem of the glass that can't going up and I spent about 30 minutes try to fix the problem. I sort of push up and down the glass switch that control by the motor. Well after 30 min I tried to start the car but the battery has lost power. I did not know that the glass motor consumed a lots of battery. Well i have had to charge battery. it gots start. This is no easy fix since the cable moving up and down connect o cable need to be exam. I can't take this part. So don't play around with Glass motor switch, it consumes battery power fast.