Fan

Discussion in 'Gen 3 Prius Technical Discussion' started by amnyce, Sep 8, 2016.

  1. amnyce

    amnyce Junior Member

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    My back fan has been coming on in my 2012 Prius. I just bought it, have had it one week. In my Gen 2 Prius, the fan in the back was a good indication that my hybrid battery was about to die (and it did). Are the fans in the back of the newer generations louder? Or should I be concerned ???
     
  2. JC91006

    JC91006 Senior Member

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    The fan does come on to cool the battery. I find the fan in my 2015 car to be louder than my gen2 cars.
     
  3. Montgomery

    Montgomery Senior Member

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    I have a Gen 3, but I don't hear my fan very much at all. I would check to see if it needs cleaning. Since you did by it used, it may just need cleaning.
     
  4. JC91006

    JC91006 Senior Member

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    Strange as it may sound, I really notice the gen3 car's fan a lot more than gen2. I rarely notice the gen2 fan on, but lately my gen3 fan comes on quite a bit a low speeds. But of course my gen3 is black and it's 100 degrees outside.
     
  5. bisco

    bisco cookie crumbler

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    make sure the inlet is clear, clean the fan, and then sleep peacefully.(y)
     
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  6. bisco

    bisco cookie crumbler

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    i've never heard mine. was it hot out?
     
  7. Tideland Prius

    Tideland Prius Moderator of the North
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    I've started hearing it in the summer.... last year or year before. Prior to that, it only came on once when I went through valley and it was 36°C outside and I just came down a hill and topped up the battery.

    So yeah I've been hearing the fan too, definitely moreso than in the Gen 2 (which was only once... when it was 35°C and it was parked in the sun for 2 hours or so) but I've been hearing it for at least 2 summers, possibly 3.