The right headlight flickered and then went out. I replaced the bulb and then the other went out and I replaced that too. Then the lights would take turns going out or both going out. When I turned off the car and turned it back on the lights would be fine. If I hit a bump I would lose a headlight. took it to the dealership they took apart the lights and tested them and tested the ballasts with no problems to be found. drove it for 5 minutes and the headlight said it was out but the both low beams were working. It is currently still at the dealership.