Sometimes when I hit a bump or speedbump, my driver side HID bulb turns off. Usually I have to turn the lights off, then back on to have both turn on again. I find this very annoying, but even worse, sometimes I try to flick the lights off and on, and then BOTH of them don't turn on.
Is this a sign of a bad bulb or balast? Bad connection? Ground?
BTW these are HIDs from Slim's very first Group Buy on Toyota Nation, so 2.5 years ago.
Any help is appreciated.