My boyfriend turned off his car today and as soon as he took the keys out of the ignition and opened the car door, his headlights started flashing off and on. They eventually time out and go off. It just randomly started happening today. The battery is brand new, so he has been unpluging the battery everytime we leave it for long. Could it be a relay switch? I think is has something to do with his car alarm, because thats what his alarm does when it goes off the only difference is, the car isn't making the beeping noise it normally would if the alarm was going off.