Toyota Prius owners have reported 38 problems related to fog light switch (under the exterior lighting category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Toyota Prius based on all problems reported for the Prius.
I have a 2006 Toyota Prius and my headlights go out randomly,quite often while driving. While driving you can start off with all lights on and then while in low beam the headlights will go off leaving you with fog lights and while in high beam all of the lights go out. The car was taken to a Toyota dealer who said "Toyota knows this is a problem" but we still have to pay. I have children and when my lights went totally out I was lucky enough not to have had an accident. I have read others complaints on an internet blog site and there have been several other owner's with this problem. What does it take to have a recall on these vehicles and have Toyota held responsible for faulty equipment before an accident happens and people are injured due to this.
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Driver's side headlamp started going off sporadically on 2007 Prius. Turning off the lights and turning them back on fixed the problem, but they would periodically flicker and change brightness. Car was under warranty and I took it to the dealer. Dealer replaced the hid computer 2 times before the problem seemed to be fixed. Now I am past my warranty, and now both headlights go out while driving. I leave my fog lights on so that I am not suddenly in the dark. If I turn off my headlights and turn them back on, they come back on. It is very dangerous, and I have tried to have this fixed two times. It doesn't happen every time I drive the car, but it seems to happen more often than not.
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2006 Toyota Prius with hid lights. At 30,000 miles, in December 2007, the passenger side light began to turn off by itself. It would turn back on if we turned the lights completely off, then on again (dangerous at night, of course). At 35,000 miles, the dealership estimated $350 to replace the bulb, but then replaced bulb under warranty. At 50,000 miles the drivers side headlight began to do the same thing. We could not afford to pay for the replacement so have been turning off and on to remedy. Last week the passengers side headlight started doing it again, even though it is only 1 year old. There are times we have one headlight, and times we have no headlights other than the fog lights. We have been stopped by police and given a warning about a headlight being out. This is a dangerous situation and we think that it cannot be the hid lamps themselves, as they come back on again when we recycle the switch. It must be a computer or relay. . Read more...