NHTSA Complaint #10883851 — 2004 TOYOTA PRIUS

RIGHT HID HEADLAMP INTERMITTENTLY GOES OUT WHILE DRIVING AND DOES NOT GO BACK ON. HOWEVER, WHEN YOU SWITCH THE HEADLIGHT TOGGLE SWITCH OFF THEN ON AGAIN, RIGHT HID HEADLAMP GOES BACK ON. WHILE DRIVING FOR A DISTANCE OF 120 MILES LAST NIGHT, THIS HAPPENED 6 TIMES ON BOTH CITY AND HIGHWAY AND ROAD CONDITIONS IE. BUMPS ETC IS NOT A FACTOR SINCE IT HAPPENS ON A SMOOTH PAVED HIGHWAY AS WELL. THE OUTAGE CAN OCCUR A FEW MINUTES AFTER TURNING THE TOGGLE HEADLAMP SWITCH ON OR IT CAN STAY ON FOR 20 MILES THEN OUT AGAIN. SINCE THE CAR IS NEVER LEFT IDLING WITH THE HEADLAMPS ON, IT IS UNKNOWN WHETHER RIGHT HEADLAMP WILL GO OUT WHILE PARKED. HAVE READ IN THE PRIUS CHAT SITE THAT MANY OTHER DRIVERS HAVE EXPERIENCED SIMILAR PROBLEM AND DESPITE THE DEALER REPLACING THE HID BULB OR EVEN THE ENTIRE HEADLAMP ASSEMBLY WHICH IS OVER $1,100 THE PROBLEMS WERE NEVER FULLY RESOLVED. PLEASE REFER TO: HTTP://PRIUSCHAT.COM/THREADS/HEADLIGHT-PROBLEM.34584/