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Heater Auto Mode Will Not Stay Off

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by jsureke, Dec 3, 2018.

  1. jsureke

    jsureke New Member

    Joined:
    Dec 3, 2018
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    Location:
    USA
    Vehicle:
    2015 Prius
    Model:
    III
    Regardless of what I do, the heater does what it wants. I set a low fan speed to blow through the dash vents directly at me, and the "auto" light is not on.
    But, in about 2 minutes, the blower fan speeds up, the air blows at my feet, and the "auto" light turns on.
    I want things to stay where I set them, but this car is possessed! It needs an exorcism!
     
    #1 jsureke, Dec 3, 2018
    bisco likes this.
  2. jsureke

    jsureke New Member

    Joined:
    Dec 3, 2018
    2
    1
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    Location:
    USA
    Vehicle:
    2015 Prius
    Model:
    III
    I forgot to turn on email updates.
     
    #2 jsureke, Dec 3, 2018
  3. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    108,920
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    welcome!
    that is a problem i don't recall reading about before. try disconnecting the 12v negative for an hour, to reset all the computers.

    is this car new to you?
     
    #3 bisco, Dec 5, 2018
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