A/C redirects air to floor vents even with dash vents selected.

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by Chuparosa, Jun 21, 2024.

  1. Chuparosa

    Chuparosa New Member

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    2014 Prius
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    V
    It's 106 degrees outside. I had a long drive this afternoon and the A/C works great except that every two or three minutes I have to hit the mode button again because it shifts by itself from cabin air to floor air. I don't usually realize it until I'm uncomfortably warm and my feet are cold. Is this fixable?
     
    #1 Chuparosa, Jun 21, 2024
  2. Air_Boss

    Air_Boss Senior Member

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    If you can drive internal air mixer and diverter door position via the mode switch, the motors work, so it could be an ‘AUTO’ logic issue. I think I saw the steps to enter diagnostic mode. Suggest you search on that term.
     
    #2 Air_Boss, Jun 22, 2024
  3. Chuparosa

    Chuparosa New Member

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    Thanks. I have NO idea what you just suggested, but my mechanic will. I appreciate the reply.
     
    #3 Chuparosa, Jun 22, 2024
  4. ChapmanF

    ChapmanF Senior Member

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    Sounds like it could be an intermittent signal from the 'mode' button, so the A/C amplifier thinks it's doing what you're telling it to.

    There might be a test mode available where you can press all the buttons and make sure they show pressed when you do, and not pressed when you don't. I haven't looked for that specifically, but if there's such a test mode the repair manual will cover it.

    Toyota Service Information and Where To Find It | PriusChat
     
    #4 ChapmanF, Jun 22, 2024
  5. Air_Boss

    Air_Boss Senior Member

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    #5 Air_Boss, Jun 22, 2024
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