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Foglights Not Turning On Consistently

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by ShihFa, May 15, 2024.

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  1. ShihFa

    ShihFa Junior Member

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    Hello,

    I hope that I am posting in the right thread:

    My foglights do not turn on consistently when I flip the switch. Are the bulbs changeable or is it another issue perhaps?

    Thank you
     
  2. Tombukt2

    Tombukt2 Senior Member

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    On the generation 3 these are the daytime running lights that are down in the front bumper cover? I do not think those are replaceable you replace the little clear housing but I'm not sure of that either I don't think we've done anything to our persona in that area I don't think it's a little LED 194 bulb I think it's like the tail lights more or less but I haven't looked to be sure of that now my 2010 non-persona solar roof car doesn't even have those lights in the front bumper they're just turn signals I believe.
     
  3. ChapmanF

    ChapmanF Senior Member

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    The foglights are meant to come on only when the headlights are on and with low beam selected. They don't come on any other time. Could that be part of the story?

    When you have the headlights on low beam and you turn the foglight switch on and off, do you hear the relay clicking down under the dash or no?
     
    Mendel Leisk likes this.
  4. AzusaPrius

    AzusaPrius Senior Member

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    They are H11 and can be replaced.

    You can also replace the whole fixture to get better light like I did.

    My fog lights are aftermarket and I installed them so they turn on anytime I hit the switch. 20240403_113237-1.jpeg
     
  5. ShihFa

    ShihFa Junior Member

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    Yes, they could be the daytime run lights.
     
  6. ShihFa

    ShihFa Junior Member

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    I will check for the click the next time I am in the car