HEADLIGHTS GO OUT UNEXPECTEDLY AND W/O WARNING. THIS HAS HAPPENED AT ALL DIFFERENT SPEEDS, IN A PARKING LOT 5-10MPH, ON ROADWAY 30-45MPH AND ON THE HIGHWAY65-70MPH. LIGHTS WILL COME BACK ON JUST AS UNEXPECTEDLY W/O APPARENT CAUSE. HAVE SHUT DOWN AND RESTARTED CAR WITH NO EFFECT, TURNED LIGHT SWITCH ON/OFF, NO EFFECT AND THEN THEY WILL TURN ON AFTER SEVERAL MINUTES WHILE PARKED. SOMETIMES THE LIGHTS WILL TURN ON AND OFF SEVERAL TIMES BEFORE STAYING LIGHT. *TR