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Brake buzzer noise

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Matthew J Anderson, Oct 9, 2019.

  1. Matthew J Anderson

    Matthew J Anderson New Member

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    I am getting the annoying buzzer noise when pressing the brake pedal twice almost every time. What could this be? It buzzes for like few seconds. Very annoying. I have a Toyota Prius three 2012
     
    #1 Matthew J Anderson, Oct 9, 2019
  2. Matthew J Anderson

    Matthew J Anderson New Member

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    I am getting the annoying buzzer noise when pressing the brake pedal twice almost every time. What could this be? It buzzes for like few seconds. Very annoying. I have a Toyota Prius three 2012
     
    #2 Matthew J Anderson, Oct 9, 2019
  3. bisco

    bisco cookie crumbler

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    isn't it the accumulator filling?

    what do you mean by 'pressing the brake twice'?
     
    #3 bisco, Oct 9, 2019
  4. bisco

    bisco cookie crumbler

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    it's normal. the pedal activates the accumulator pump
     
    #4 bisco, Oct 9, 2019
  5. Matthew J Anderson

    Matthew J Anderson New Member

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    It does it EVERY time I press the brake pedal towards the floor or put pressure on the brake pedal at least twice then it buzzes it’s SO annoying and audible through The Whole car! For example I press it once, then I press it again and there it goes “BZZZZZZz” every single time are you sure that’s normal?
     
    #5 Matthew J Anderson, Oct 9, 2019
  6. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    If the buzzing is happening real frequently, might be something failing?
     
    #6 Mendel Leisk, Oct 9, 2019
  7. bisco

    bisco cookie crumbler

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    hard to say, you're making it sound louder than normal. has it changed?

    can you post a recording?
     
    #7 bisco, Oct 9, 2019
  8. tankyuong

    tankyuong Senior Member

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    Mine used to do that but somehow doesn’t do it anymore due to me not pressing down the brake too hard
     
    #8 tankyuong, Oct 9, 2019
  9. bisco

    bisco cookie crumbler

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    perhaps some freshening of the brake fluid?
     
    #9 bisco, Oct 9, 2019
  10. Matthew J Anderson

    Matthew J Anderson New Member

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    How can I post a recording on here
     
    #10 Matthew J Anderson, Oct 10, 2019
  11. Matthew J Anderson

    Matthew J Anderson New Member

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    I posted it on YouTube hopefully you guys can hear it

     
    #11 Matthew J Anderson, Oct 10, 2019
  12. Matthew J Anderson

    Matthew J Anderson New Member

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    Basically every two pumps of the brake pedal there is an annoying buzzer noise
     
    #12 Matthew J Anderson, Oct 10, 2019
  13. Matthew J Anderson

    Matthew J Anderson New Member

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    It even buzzed while holding the pedal open and pumping it toward the floor smh
     
    #13 Matthew J Anderson, Oct 10, 2019
  14. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Again, that seems too frequent. I vaguely recall that was a sign of something failing. Get a dealership mechanic to test drive? There is a warranty extension on the brake bits mounted on the firewall.
     
    #14 Mendel Leisk, Oct 10, 2019
  15. bisco

    bisco cookie crumbler

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    could be a faulty actuator. go on toyotaowners.com and see if you qualify for the extended warranty
     
    #15 bisco, Oct 10, 2019
  16. bisco

    bisco cookie crumbler

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    what happens if you just press the pedal and hold, like normal braking?
     
    #16 bisco, Oct 10, 2019
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