Hese cars are know for getting water in the headlights. This causes electrical problems, and at the very least blows bulbs. When you turn on the high beams, the low beam turns off. You may just have a bad high beam filiment. Try replacing the bulb, and check it for water. If it has water in it, it should be replaced. I have seen people try to seal them back up once they are dried out, and I've also seen drill small holes in the bottom to allow the water to drain out. But, replacing them is the best, however most expensive option.
Friday, January 13th, 2012 AT 7:28 PM