Headlights dim or go off by themselves. Come back on if you turn lights off then on. Dangerous at night.

- Charlottesville, VA, USA

Headlamps go out at random times. Sometimes one bulb sometimes both. Two times at night both bulbs went out along with all the dashboard lights. The car was completely dark. The first time my husband was on the interstate traveling at about 75 mph the second we were traveling on a road with no over head lights. We could not see the lines, we nearly crashed. We have to quickly turn the lights off then on again to get the lights back on. The repair for this problem is $1200. I have read on the internet some people have paid as much as $2500.

- Churchville, MD, USA

Passenger side hid headlight goes out and stays out until entire headlight system is turned off and then turned back on. Very unsafe.

- Stevenson Ranch, CA, USA

The R-H ( right-hand, passenger side ) hid headlight on my Prius was operating intermittently. I have taken it to my local dealer to have it repaired. They did not have the correct part in stock ( 1st time in ). they did not have the time to diagnose the problem ( 2nd time in ). they could not duplicate the complaint ( 3rd time in ), despite the malfunction occurring when I arrived at their location. ( they shut off the car and the headlights to park the car - contrary to my direction. ) the "bulb" has been replaced, and for now the headlight is functioning properly. Nearly out of original warranty ( 3yrs/36K mi ).

- Arlington, TX, USA

I purchased a new '07 Toyota Prius in may, 2007. In the last two months, we noticed that sometimes the right headlamp was working, sometimes not. I took it to the dealership where I purchased the vehicle for an estimate on replacing the bulb. Generally, my husband performs all maintenance, etc, on our automobiles. He was unable to get the headlamp assembly disassembled, even while using the owner's manual as a guide. Initially, we thought it could be a problem with the electrical system, because if it works sometimes and not others, then maybe it was a short and should be repaired. The dealership looked at the headlights and told me that my car had the hid headlamps (interpreted, this means expensive) and to replace it would mean removing the bumper, etc, etc. They told me that it would have been covered under warranty, however, my car's odometer was at 36,900. They told me I should make an appointment and bring it in for replacement of the bulb, and it would cost about $150 for the replacement. For the record, I paid $1,499 for the most comprehensive extended warranty that they offered, and still this problem is not a covered repair. When my husband called for the appointment, they quoted him in excess of $300 to replace the bulb. In my research, I have found that this type of bulb should last the life time of the vehicle, hence the reason that it is so hard to get to that a regular person cannot replace the bulb. I feel very strongly that Toyota has an obligation to replace the headlamp or repair the "short" in the electrical system, even thought it is slightly past the warranty miles, and seven months under the 36 month warranty period. The problem began well before the original warranty had expired, and my only fault was that I did not recognize this problem soon enough. Toyota is well aware of this problem and is content to allow the dealers to take advantage of Prius owners with this problem.

- Columbus, OH, USA

My 2007 Toyota Prius hid headlights go off frequently with (of course) no notice. I received a warning ticket in May 2009, and have contacted Toyota, as I have discovered that there are hundreds of other Prius owners with the very same problem. Toyota will cover the cost of repair sometimes, but not always.

- Carbondale, IL, USA

I own a 2007 Prius with the "upgraded" headlamps... before the car reached 50,000 they began to flicker and cut off ( at night on the highway) turning them off and then back on resulting in the lamps working again...however, one continued to flicker and go out and I would turn them off and then back on before the other lamp would go out... I am sooo not happy that I am having to pay for replacement bulbs due to the fact that the computer that is responsible for the light source is fried... they should be glad that #1 they came back on and #2 that no one was inured or killed when traveling on the highway at night when the faulty equipment went out. I am hoping these will be recalled at some point....by the way I am also pregnant and was traveling with my other 2 children at the time.

- Hillsborough, NC, USA

Prius head light keep going off. Turning the switch off and back on brings the head lights back on. This happens at least 3 times each time we start a trip. I cannot afford a $300 light bulb replacement. Please help!

- Seaside, OR, USA

We own a 2007 Toyota Prius. We started having problems at 30,000 miles. Headlight burn out and at about 25-30000 mile intervals there after(we currently have 81,000 mi). The head light would go out and if you turned the car off and then restarted it may come back on. So far, we are getting our 3rd head light replaced. We were told that the lights may last longer if we didn't drive with them on during the day. I thought it was recommended that you drive with the lights on. We would like to do so, but at a cost of over $200 per headlight replacement we have turned them off in the daylight hours. Our dealer has told us the new hid bulbs don't last as long as a halogen.

- Mora, MN, USA

I have a 2007 Toyota Prius with hid headlights. The headlights will randomly go out while I am driving, but if I turn them off and then on again they will both work for a while. This doesn't seem to occur in any kind of predictable pattern. I feel that is a safety problem since headlights are necessary to drive at night and working headlights are required by law.

- Grand Junction, CO, USA

My 2006 Toyota Prius has an intermittent problem with one of the front headlights. The light will go dim or completely out on occasion. Once turned off and on it returns to normal. I have seen online that many others with this car have experienced this problem as well. When I took my car into the Toyota dealership they said they could find nothing wrong with the lights (it apparently didn't happen when they had the car). They said that they did replace a bulb under warranty. I have not noticed this problem since I took it in but I am concerned because it intermittent. I hate to consider what might happen if I am negotiating a dark, sinuous road some night and both of my head lights go out suddenly.

- Dallas, TX, USA

On multiple occasions one or both of the headlights on my 2007 Toyota Prius have gone out without warning. The lights come back on when I turn the light control completely off and then turn it back on. The lights will then work for awhile before turning off again. There is no alarm or notice the headlights have gone off.

- Ringwood, NJ, USA

2007 Prius headlight goes off but comes back on if you turn lights off then back on this is my 2nd light first passenger now driver side light cost $393.

- New Lenox, IL, USA

Driver's side headlamp periodically goes out and then will come back on after I turn off the lights and turn them back on again. Cause of failure is unknown. The headlamp will then work for several more trips and several more miles. But then, at random, it will fail again. The connection is not loose and the bulb is not burned out.

- Indianapolis, IN, USA

Original complaint number ODI 10281115 on 3 consecutive evenings 092209, 092309, 092409, one or both headlights have failed independent of each other and also simultaneously together resulting in no lighting. This is happening every evening and is now especially dangerous due to morning and evening commutes in darkness. When will the NHTSA force Toyota to issue a safety recall?

- Hanson, MA, USA

Passenger headlight goes out intermittently. Turning the lights off and back on will usually fix the problem for a while, then the light goes off again. Impaired nighttime driving results, and turning the lights completely off and on again can be frightening and disorienting both to the driver and to oncoming traffic. Many people have reported identical problems with a standard run-around from Toyota. Replacing the bulb costs an exorbitant amount of money, and often results in the same problem all over again.

- Tower, MN, USA

Driver's side headlamp is intermittent on 2007 Toyota Prius. Neither dealer nor Toyota has given a definitive answer on the corrective action. One time they say it is the ECU; the next time they said it was the headlamp. Failure was not duplicated at the dealer so they do not know what to do. Calls to Toyota do not provide any definitive corrective action other than what we have already done turning the lights off and then back on negates the immediate failure. Police have stopped my wife for the problem once.

- Smithfield, VA, USA

My car's passenger side headlight bulb works intermittently. Some times when it is turned on, it works, other times it does not.

- Rockville, MD, USA

2007 Toyota Prius hid headlights will go out intermittently. Started roughly 6 months ago. Went to dealer several times. Lights would work when they turned them on and said there wasn't a problem. A night when you are driving they will just go off. Turning switch off and back on then the lights will work for a while. Now our dealership is closed. Closest dealer is over an hour away. That dealer states that they have never heard of this problem. They quoted me a cost of $90 per hour to diagnose the problem which the said could take most of a day. If I want them to replace the bulbs it would be almost $1000 with no guarantee that is the problem. I have seen many complaints on the internet about this.

- East Gull Lake, MN, USA

Driving at night and my passenger side headlight works intermittently. Works for 10 minutes and then fails. Hid type headlight on 2007 Toyota Prius.. only problem on passenger side headlight.

- Austin, TX, USA