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Still Learning the Prius Noises

Discussion in 'Gen 3 Prius Main Forum' started by TheBegster, Jul 2, 2017.

  1. TheBegster

    TheBegster New Member

    Joined:
    Jun 26, 2017
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    Location:
    Lexington, KY
    Vehicle:
    2010 Prius
    Model:
    Five
    Recently purchased a 2010 Prius Five with 47K miles. Occasionally when I start the thing up a buzzing noise, somewhat loud but constant, will go on for about 5 - 10 minutes. If I turn the car off and back on again before it cycles the noise will stop. I am fairly certain this is common but wondering if anyone can give me insight as to what exactly is going on when this occurs? Thanks everyone.
     
    #1 TheBegster, Jul 2, 2017
  2. Markdizle

    Markdizle Member

    Joined:
    Feb 15, 2017
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    Location:
    Huntington Beach
    Vehicle:
    2015 Prius
    Model:
    Two
    Could be the AC, it makes a humming noise when it's first fired up?
     
    #2 Markdizle, Jul 3, 2017
    TheBegster likes this.
  3. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    shut the a/c off to confirm, it's usually a constant noise. there's a buzzing when you open the drivers door, and when you step on the brake, but it should only last 5 or 10 seconds.
     
    #3 bisco, Jul 3, 2017
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  4. Johnny Cakes

    Johnny Cakes Senior Member

    Joined:
    Dec 30, 2016
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    Location:
    Virginia, USA
    Vehicle:
    2015 Prius
    Model:
    Five
    That's what it is for me, although definitely longer than just when its first fired up. Like the OP said, it goes on for several minutes. However, turning the AC off immediately stops the noise so its clearly related.
     
    #4 Johnny Cakes, Jul 3, 2017
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