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A/C Light On when Heating

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by coyote303, Oct 16, 2013.

  1. coyote303

    coyote303 Member

    Joined:
    Jun 24, 2013
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    Location:
    Colorado
    Vehicle:
    2013 Prius c
    Model:
    Four
    It was the first really cold day since I got my car--40 degrees F. outside. I hit the Auto button and bumped the temperature up to 78 degrees. The A/C light came on. I tried turning the system off and then on (now that the temperature is set higher), and I got the same thing: the A/C light came on.

    Is this normal or should I have this looked at next time I take my car in for service?
     
    #1 coyote303, Oct 16, 2013
  2. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

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    Oct 2, 2004
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    Location:
    Canada
    Vehicle:
    Other Non-Hybrid
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    You should be able to heat without the A/C but note that if you're in AUTO and the A/C light is on, it doesn't mean it's running. The two lights mean that the A/C compressor is in AUTO and will cycle on and off as needed.

    In addition, if it's humid, you would be advised to keep the A/C light on with AUTO so that it can act as a dehumidifier and dry the air so that your windows don't fog up (especially if you have to hit recirculate to keep diesel fumes or other smell out).
     
    #2 Tideland Prius, Oct 16, 2013
    AliIzad and coyote303 like this.
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