Prius (2001-03) :: Headlights Won't Turn Off, Even With The Car Off
Dec 22, 2013
This afternoon, when my wife went to start my 2001 prius, it was dead. I disconnected the 12V battery (relatively new) and checked the voltage. About 3 volts. So I put a charger on it and hoped. After about 12 hours it seemed to have enough charge to try it, and immediately the headlights turned on. I jumped in the car to turn off the headlights but they wouldn't turn off. I honestly don't know if the switch was in the on position to start with, but it's definitely in the off position now, and the lights are still on. What's going on here?
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2004 Santa Fe 2.7L
When the headlights are on the left turn signal stays on(but does not blink). The right turn signal functions ok. With the headlights off both signals function normally. The headlights work correctly.
This issue happened once a year ago but just started reoccurring two days ago.
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MY friends's 2001 Passat has an issue. Brake lights work fine when the headlight switch is turned off. When she turns the headlight switch ON, her brake lights are stuck on. Left, right, and center. What could this be? Seems like maybe a fuse or brake light switch.
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I have problems with my SF 2002. When i turn on my headlights, the instruments panel (odometer, shifts indicator and others) has no lights. Turning off them, the shift indicator lights again.
I have notice that when days ago, i have changed my radio the problem began. Maybe the problem is related with this.
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2004 Prius. Sometimes, quite randomly, the headlights will turn off. Sometimes its both, sometimes its the left only, and sometimes its the right only. This affects both main and high beams. The dash lights and tail lights may still be on (panicking doesn't give me time to confirm that), but for sure the Nav panel is still lit.
The first time this happened was when I was driving on a mountain road at night in the rain. It now happens almost every night and I have confirmed that it also happens in daytime. Road conditions (bumpy/smooth, wet/dry, dark/well lit) do not seem to be a factor.
At least once while still in my garage, when I started the car the left light was out. I can get the lights to turn back on by turning them off all the way and then back on. Nothing else works. I have replaced the relay for the lights - that didn't change anything.
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I just got my 2010 prius with OEM fog lights. I was wondering if there's a mod that I can just turn on my fogs without having to also turn on the headlights.
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Anytime I turn the headlights on, the high beams go on too; I cannot switch off the high beams unless I turn off the headlights entirely (I have been driving with the low beams on during the day for the 5 years I have had the car)
I can find no reason for this; I'm inspecting the fuses (with little expectation). The only thing I can think of is the control switch or wiring. I have standard headlamps, not hid.
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I'm a proud owner of a 2005 prius which until recently ran flawlessly. For the past 2 mos, one of both of the headlights randomly turn off at nighttime. If I turn the knob off, then back on, they both work.
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With the days getting shorter, I have been leaving the lights on when I park the car in my garage, and rely on the auto-shutoff feature instead. However, today I found out (after someone told me several hours later) that my headlights were still on. As far as I know, if I leave the lights on, turn the car off, and lock it, it should turn off within a few minutes, correct (previous experiences seem to indicate this is right)?
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How to make the headlights turn on when the windshield wipers are activated?
You must turn on the headlights when it rains, and I don't want to pay for tickets...
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I have Prius 2007, base model + package 2 & no upgrades. Not sure if it came with HID. It does not have a fog light.
I parked the car in front of a restaurant and waited. Turned off the headlights while waiting with engine running. Fiddled with the interior panel brightness dial a bit. When I turned on the car again the headlights wouldn't turn on - both of them. Drove home with hi-beam.
Checked the fuses H-LP LO for both RH & LH sides. They seem fine.
Asked wife to turn on/off headlights from stick - I could hear the click in the relay - so DIM relay is ok. With stick knob set to headlights and car running asked for the stick to be pushed to turn on/off high-beam- Could hear the relay engage + high beam on/off.
I looked closely to see if the mirror is moving - no movement. Just found it is possible for the same bulb to be High & low beams when there is no mirror movement with dual filament bulbs.
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I never used the headlight before. Last night, I turned on my headlight, All the indicators like MPG indicators, EV,HV modes , etc. disappeared. Of course, it doesn't matter for my driving this PIP.
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We have noticed something strange with the dash in our new 2012 Prius. While driving at dusk and turning the headlights on the dash readout can go completely dark. Leaving only the gear selection indicator visible. This can be completely disorienting and dangerous. This happens if the dimmer wheel is set in the lowest position. It will turn back on if the dimmer wheel is moved up from the lowest setting.
I can recreate the issue parked by simply having the headlights on and dimming the switch all the way down. It will shut off the speedometer, MPGmeter, and Hyrbrid indicator screens.
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Just got a 2010 Prius model III and discovered that there is no warning system if you turn it off and get out forgetting to turn the headlights off.
Even my 1997 car chimed if I turned it off and opened the door with the lights still on.
Also, if only the parking lights are on there is no symbol on the dash indicating that.
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I have searched the Owners Manual, forum and internet about this, but I can't come up with a solution. Perhaps I am not using the correct terminology. I also have an ALLDATA DIY subscription on this vehicle, but I could not find any instance of this occurring to be able to troubleshoot. I though that there might have been a light out somewhere.
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Just got a 2014 Prius Three. All my precious cars (non-Prius) had an automatic on headlight system, noticed the Prius doesn't. Can I just replace the turn signal lever with one that has the 'auto' feature? Could it possibly be that simple?
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I recently purchased an 05 prius pack 4, it has an Auto mode on the headlight switch that does not work. as in the headlights do not turn on in pitch black night... From the searches I have done it appears that the car should not have auto headlights and yet it has the switch... I dont think its canadian because it does not have DRLs... if some models DO have auto headlights then what would cause them to not work.
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My (2001) headlights are always the dimmest of any car around me on the freeway. Is this a common issue with Prii? Yes, my lenses are clouded, but even when I clean them up, they are still dimmer (and yellower) than the cars around me.
Is this a possible indication of a problem with the electrical system?
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I sold my really nice Gen1 to a lady friend about 10 months ago. The few months I owned it, it was fairly trouble free and all I did was have the dealer replace the whole rack and pinion steering assembly on an old recall (no cost). Also change the OEM battery to the Yellow Top Optima.
Now the new owner has ask be to look into a problem she is having with the head lights coming on after she leaves the vehicle. It appears that this is just the head light and not the tail lights, so I would say that it has something to do with the daytime running lights part of the light control system.
She tells me that when she turns them off each time it happens, they come back on again when she closed the car. Since this was running the 12v battery down, she has been disconnecting the battery at the neg. terminal. So that has erased the OBD codes and history.
I now had her drive the car to my shop and I am waiting to see if the lights come on. This seem to start happening when our weather got cold, into the 20s and 30s. Not sure it hat is a factor. But today has been in the hi 40s and the lights have not come on since the car was turned off.
Now, I'm going to go out lock the car and turn the alarm system on to see if that has any effect.
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I've noticed that if I have the dimmer wheel dialed up to maximum brightness before the detente that puts the mfd back to regular daytime brightness (hope this makes sense), in about the next minute and a half after I turn the headlights on, the mfd dims to roughly half the original brightness.
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Ok. So i left work yesterday and realized that my low beams are both out. These are new bulbs so I checked the fuse under the engine hood. It had not broken. I grabbed my volt meter and got no current DC going into the fuse. Where the relay is located? This is for a 2001 prius.
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