Auto ventilation setting forces recirculation

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Tropicseed, Aug 11, 2014.

  1. Tropicseed

    Tropicseed New Member

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    Hi all,

    I used Carista to prevent the auto climate control button from forcing AC on, worked great! However now I noticed that whenever I turn on the AC, it forces air recirculation. Worse, if I manually set it to fresh air, turning the car off and on again resets it to recirc, annoyingly.

    Is there a way to change this? I want the default to be fresh air.
    Thanks
    Patrick
     
    #1 Tropicseed, Aug 11, 2014
  2. Vic Doucette

    Vic Doucette Junior Member

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    Are you driving in "eco" mode? That seems to force the system into recirculation mode and also slows the fan a bit, all in the name of economy.
     
    #2 Vic Doucette, Aug 11, 2014
  3. Tropicseed

    Tropicseed New Member

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    Good point, but no, I'm in normal mode.
    Patrick
     
    #3 Tropicseed, Aug 11, 2014
  4. Mendel Leisk

    Mendel Leisk Senior Member

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    As far as I know ours never forces AC, if I hit Auto with the AC button off.
     
    #4 Mendel Leisk, Aug 11, 2014
  5. Tropicseed

    Tropicseed New Member

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    Well, my '13 Prius Three did force AC with Auto. The manual confirmed this and says the dealer can change it. I got Carista, and it can change this setting, and many others. But no mention of recirc vs. fresh air settings.

    Perhaps this behaviour varies with model or year?
    Patrick
     
    #5 Tropicseed, Aug 11, 2014
  6. Mendel Leisk

    Mendel Leisk Senior Member

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    Yeah that's what I'm thinking. Or different setup since I'm in Canada.

    Step backward, my 2 cents. Our last car behaved as you describe: first order of business after hitting Auto was to turn AC BACK off.
     
    #6 Mendel Leisk, Aug 11, 2014
  7. fuzzy1

    fuzzy1 Senior Member

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    Did it not do this before the change? Both my Prii did this from the start.
     
    #7 fuzzy1, Aug 11, 2014
  8. Tropicseed

    Tropicseed New Member

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    I'm sure it did! I think these are independent settings - if indeed the fresh/recirc is even settable.
    Patrick
     
    #8 Tropicseed, Aug 11, 2014
  9. Former Member 68813

    Former Member 68813 Senior Member

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    I had to change the setting about the auto recirc when AC on via TIS. The default is very annoying feature for some of us who like fresh air.
     
    #9 Former Member 68813, Aug 12, 2014
  10. Tropicseed

    Tropicseed New Member

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    What's TIS? I looked through Carista's settings, there wasn't anything relevant I could find there.
     
    #10 Tropicseed, Aug 12, 2014
  11. Tropicseed

    Tropicseed New Member

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    Posted to soon! As usual google is my friend. TIS = Technical Information System. Everything you might want to know about Toyotas, evidently much of it available only if you're in the biz.
    I'll ask the dealer about it next time I go for service.
     
    #11 Tropicseed, Aug 12, 2014
  12. Former Member 68813

    Former Member 68813 Senior Member

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    "unofficial" ones available at about $30.
    [​IMG]
     
    #12 Former Member 68813, Aug 12, 2014
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