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Upper dash board plastic cap(s)

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by z80, Sep 23, 2017.

  1. z80

    z80 Junior Member

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    Hello!

    There is a hole for blowing air on car's windshield in upper part of dash board. On the left of that ventilation hole there is a plastic "cap" (please, see attached image). But I didn't ever care if there is the same cap on the right. And today I noticed that there is no the same thing on the right. Should it be there? I also can't find appropriate part number. I would be very much obliged for any information! Thank you!
     

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    #1 z80, Sep 23, 2017
  2. bisco

    bisco cookie crumbler

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    welcome!
    that might be a sensor of some sort? if no one knows, ask your local parts dept.
     
    #2 bisco, Sep 23, 2017
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  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Sunlight sensor?
     
    #3 Mendel Leisk, Sep 23, 2017
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  4. Sean Nelson

    Sean Nelson Active Member

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    I believe that is what's called the "sun load" sensor for the HVAC system. Yes, there is only one of them and its purpose is to adjust the HVAC output based on whether the sun is shining in through the windows. You need more A/C to maintain the set temperature if the system has to deal with that thermonuclear energy bombardment.
     
    #4 Sean Nelson, Sep 23, 2017
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  5. Mendel Leisk

    Mendel Leisk Senior Member

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    Dash brightness too I think.
     
    #5 Mendel Leisk, Sep 23, 2017
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