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Defroster/heater/ac

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ramattos, Jul 30, 2012.

  1. ramattos

    ramattos Junior Member

    Joined:
    Jun 25, 2012
    57
    2
    0
    Location:
    Bethlehem PA
    Vehicle:
    2010 Prius
    Model:
    III
    i have noticed that with my 08 that occasionally when driving after a rain the windshield will fog up on the inside with the defroster on and set at roughly 73 deg. i do not know what i am doing wrong if anything. i also notice that under a/c auto occasionally the window will fog up a little right around the vents, just under normal driving.
     
  2. dbarcan

    dbarcan Junior Member

    Joined:
    Mar 8, 2012
    11
    0
    0
    Location:
    Long Valley, NJ
    Vehicle:
    2006 Prius
    Model:
    Four
    In my experience, this will happen if the a/c control is set to recirculate the air. inside the cabin.
     
  3. Not enough defroster air flow, set ACto low temp initially with high fan, also cracking 1-2 windows open helps. Do not use heat, that will make it worse.