I have an 06 gs300 with oem HIDs, d4s bulbs. Car has 54k miles and tonight I noticed a bulb was out.....turned the lights off and back on, light is back on....is this the way HIDs behave before going out ??? I know halogen filament bulbs burn out and they are done...what do HIDs do? I realize I could swap bulb from one side to the other and help pinpoint bulb vs ballast issue but common things occur commonly....any thoughts ?? Thanks