Prius (2004-09) :: Automatic Headlight Beam Level Control System
Jun 24, 2011
I have a problem with our oldest Prius, a 2005 Package V. I have had an ongoing problem with the warning triangle and the headlight icon coming on and off for a few years now. Anyway, after locating the post about repairing the sensor, I finally got around to checking out the headlight height control sensor and when I opened it up, I found it to be badly corroded/ unrepairable. My local dealer wants $500+ to repair the system and I really don't need the leveling function anyway.
My headlight level has been stuck it the same position for a long time, but as luck would have it,. they are at a perfect level....Always pass State inspection, illuminate the road perfectly etc.
The problem that I now have is that the two warning icons stay lit all of the time. Is it possible to disconnect or jump wire the Headlight Level Control ECU or something else in the wiring system to disable/turn-off these two warning lights? I disconnected the corroded Height Control Sensor, but the warning lights stay lit.
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My '05 Prius with just 16k miles on it just started displaying the red triangle with exclamation mark (multifunction warning lamp?). It displays about every 3 times I start the car... The Info screen shows the icon for the Automatic Headlight Leveling System. So Ive been searching, and have found a few threads related to this, but the fix Ive seen referenced I cannot find since the posts referencing the fix are about 5 yrs old. Exactly where on the car I can find the sensor, and how it can be fixed?
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I've been noticing this in the past week, when I'm driving about at around 5pm, the headlight would turn on if I leave the stalk on AUTO. Except it's BRIGHT daylight! Sure it's the beginning of sunset and the sun was to my side, but the amount of light is still extremely high. I see no visible difference between it and driving at noon in terms of the amount of light on the road.
Turning the lights off and on again doesn't work...The low beam does not come on when driving in the morning around 8 or noon, only in the afternoon. Even if the sunlight was shining right on the dashboard, the low beam would still be on in the afternoon.
Makes me wonder if this is a sensor calibration issue( I have nothing covering the sensor) or if it's like this by design. Making the headlight turning on extremely early so that Hyundai doesn't get sued by someone because the light "came on too late" and caused an accident. This is extremely annoying as it uses extra power to run the lights unnecessarily, and not to mention shortening the life of the bulbs. My current work around is just turning on the parking lights...sure the tail are still going to be illuminated, but better than the low beam at least.
I do want to keep the DRL on, but there is no "DRL on" option on the stalk, only "DRL off" to shut everything off. If I want DRL, but not automatic headlight, there is no way to do it, except turning on the parking lights instead.
I don't recall this issue on other brand vehicles I have owned...and about 95% of the vehicle I see coming the other way, under the same lighting condition, is running on DRL only(Assuming they have Auto headlights). What's the trigger condition for the low beam for hyundai..?
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So I had an issue with my hid lights, I replaced one ballast and 2 new bulbs and they work fine now but the passenger side is stuck on high beam. When i turn on the brights only the driver side gets brighter, how to fix this? I only replaced the driver side ballast
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I have a 2006 Prius that I purchased with no upgrade on the headlights. There was an upgrade available for high intensity lights, but, I didn't get them. The low beam on the passenger side headlight just stopped working. Two questions:
1. I was just told by the Toyota dealership that to replace the headlight, the entire front end of the car would need to be dropped. They just told me that with them supplying the bulbs, the cost would be about $250 plus tax. If I supply the bulbs, only about $200 plus tax. My owners manual indicates that this is a do-it-yourself project. Is this true or is the dealership trying to make money off of me?
2. When I do replace the lights, I would like to put in something that would put out more light than what I have now. I have been told to be careful because many replacement lights throw off so much heat that the housing around the bulb could melt. Also, I have read that some of these replacement bulbs have a very short working lifetime of 1-2 years. Obviously, I would want to keep away from them.
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My 2006 Prius (Model NHW20) has a strange headlight problem. On the passenger side, the high beam light is out but the regular headlight works.
On the driver side, the high beam is working but the regular headlight is out.
I don't think it's the fuses but I'm not sure. No amount of interchanging the following fuses changes anything about the issue:
1. 10A H-LP HI RH
2. 10A H-LP HI LH
3. 15A H-LP LO RH
4. 15A H-LP LO LH
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First a bit of history: About a year ago, I received the headlight leveling system warnings comprising a red triangle alert with exclamation point in the middle located on the dash, combined with a yellow(ish) warning symbol on the center stack display comprising what looks like a headlight with up and down pointing arrows. Eventually, the warning lights went out, but the HID headlamps were left pointing in a down position that lit barely 10 ft in front of the car.. This is is supposedly their default position when the sensor breaks, most commonly due to moisture entering the sensor innards resulting in corrosion of the contact points. I effected the repair quoted elsewhere on this forum, and it was good to go.
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I drive a 96 Subaru Legacy. What does it mean when one of the high beams is dimmer (less light output) than the low beam? I am using a brand-new bulb. It's not an adjustment issue because I was looking at the bulb when it was outside of the housing and it clearly gets dimmer when you switch to brights. However, they are equally bright when on low-beam, so I don't think its just a crossed wire.
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My 04 Toureag has one headlight (low beam) that flickers on and off. I can shut the door and it will flicker on. This happens both for daytime running lights as well as regular headlights. It also at times registers on the dash that a light is burnt out. Yet all the lights are on and working.
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How to replace low beam bulbs? all info i found was talk about whether they were covered under warranty or not? I got extended maintenance warranty to 100k miles, but bulbs, I don't think so. I just noticed today that both were out on low beam, high beam are fine. Should I take car to dealer? or is this something I can do myself?
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My Prius is a 2012 Two model. The headlight is my low beam on the left side. Is this something I can so myself?
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I have had 5 bulbs burnout in 2 months. I'm not touching the bulb and I am using grease. I've tried the higher end sylvania bulbs and they still don't last. What might be causing this?
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My driver side lower beam (projector) will go out after a couple minutes when its turned on. If I flip the switch to off and then on, it turns back on again. Is this a sign of it going out? I am assuming i have the HID version.
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I have a 2004 Camry. A few months ago, the LH headlight stopped working. Thought it was the bulb, but wasn't. High beams work, DRLs work, socket good, contacts good. But, when I tap on the headlight cover, the low beam comes on, and stays on. What's going on here?
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Looking for detailed instructions on replacing the low beam passenger side headlight on a 2004 Phaeton...
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Why I have one headlight gone dim, high beam will not work. This just happened about a week ago and I changed the bulb and it's still the same.
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After months of researching and foruming, I made a satisfied decision to upgrade from Halogen to aftermarket HID Bi-Xenon which is really great in color and high visibility at night.
Moreover, behind Halogen headlight there is a 8mn bolt where you will use your hand or 8mn wrench (remove the black plastic cover over bumper to make more room). Twist it Clockwise to lower and Counter Clockwise to raise headlight.
I aimed mine relatively low because my intention is for a great looking light, high visibility and not blind on-coming traffic and yeah I'm so satisfied.
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My driver side low beam headlight keeps blowing out. I have changed bulb 4 times so far. Why this is happening?
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Have any control over the fan speed? The temperature? How does it work?
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I got a Ford f150 and getting the error code P0446 Evaporative Emission Control System Vent Control. My truck has burnt up 3 of these things already in the last 8 months. Why my truck keeps killing them?
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I need to select AC on when running in the automatic mode. I get from the manual that when I select Auto the system will maintain the selected temperature.
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