What's the buzz? Tell me what's happening.

Discussion in 'Gen 3 Prius Main Forum' started by Threej, Sep 7, 2018.

  1. Threej

    Threej Member

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    So I've noticed that whenever I walk by my prius with the fob in my pocket, there's a buzz from the engine compartment as if something was getting loaded into position.

    Does anyone know what its doing at that point? And why does it need to be done when I walk past the car, and not wait until I'm seated inside and pushing the start button?
     
  2. cnc97

    cnc97 Senior Member

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    It is simply the electronics in the car anticipating you getting in the car and preparing to get driven. The brakes precharge, among other things. The fob works via near field communication. The car senses your presence, and is working to be ready to drive away.
     
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  3. jerrymildred

    jerrymildred Senior Member

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    Yup. Brake pump getting ready.
     
  4. hill

    hill High Fiber Member

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    Pump it up
    .
     
  5. ChapmanF

    ChapmanF Senior Member

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    Why should you want to know?
     
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  6. Quattro

    Quattro Junior Member

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    BTW, the interior lights turn on when you walk near the car also.
     
  7. bisco

    bisco cookie crumbler

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    mine doesn't pump the brakes until i open the driver door.
     
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  8. Grit

    Grit Senior Member

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    Mine doesn’t do that in daylight, probably broken.
     
  9. Threej

    Threej Member

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    I get that its prepping the car to be driven. I just don't know why it doesn't wait until the car is actual about to be driven. Seems a waste of energy to do this every time I walk out to get the mail.


    Don't you mind about that.
     
  10. Grit

    Grit Senior Member

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    Same here.

    If you start the car entering from the passenger door, the whirling sound starts then car is ready.
     
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  11. ChapmanF

    ChapmanF Senior Member

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    You mean the thread title wasn't my cue? :oops:

     
  12. bisco

    bisco cookie crumbler

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    i am no longer that pliable.:cool:
     
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  13. Threej

    Threej Member

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    It was! I just made a slight adjustment of "mind about the future" to "mind about that" so it would make more sense in the conversation's context....
     
  14. ChapmanF

    ChapmanF Senior Member

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    Oh, everything's alright, then.
     
  15. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    You can't just drop an earworm bomb like that, without retribution...

     
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  16. ChapmanF

    ChapmanF Senior Member

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    Thank you for finding that! I was able to find lots of other clips from the 1973, but not that one, for whatever reason. It wasn't for lack of searching.

    -Chap
     
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