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Fast triple beep while driving?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Joel Pointon, Jan 25, 2019.

  1. Joel Pointon

    Joel Pointon New Member

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    Recently while driving...I get sporadic triple beeps with no visual indicator on screen or dashboard. Happens at random times...sometimes fairly close together (5 - 10 seconds between the series of 3 rapid beeps) to longer (minutes). I am totally baffled by it...not the seat beat indicator....or any other normal audio signal. Anyone else ever experience this?
     
  2. bisco

    bisco cookie crumbler

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    welcome!

    check the oil level and fob battery? just a wag
     
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  3. Joel Pointon

    Joel Pointon New Member

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    Thanks...aux battery checked...new fob battery. I will check oil.
    Thanks
     
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  4. Raytheeagle

    Raytheeagle Senior Member

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    What are the voltages of each battery?

    Just because they are new doesn’t always mean they are good (some of the fob batteries that are not name brand can be below 3.0 volts and are already mostly discharged out of the package).

    Is there anything in the passenger seat during these events?

    Good luck and keep us posted (y).
     
  5. srellim234

    srellim234 Senior Member

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    Just a wild shot in the dark but could there be something else in the car you're not aware of? A kids toy, maybe? My wife once left one of her electronic gadgets in the car and it started beeping every so often as a warning the rechargeable battery was running low. It sounded like it was coming from the dash. I thought it was the car and it drove me nuts until I finally found it inside one of the glove compartments.
     
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  6. Joel Pointon

    Joel Pointon New Member

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  7. Joel Pointon

    Joel Pointon New Member

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    Definitely coming from the dashboard. No kids...no toys. Thanks.
     
  8. Joel Pointon

    Joel Pointon New Member

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  9. Joel Pointon

    Joel Pointon New Member

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    Battery purchased at the dealership and inserted by the service department. 12V battery just checked and it A-OK
    Nothing on the seat. Thanks.
     
  10. Joel Pointon

    Joel Pointon New Member

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    By the way...happens if the smart key fob is in the dashboard slot or in my pocket.
     
  11. Raytheeagle

    Raytheeagle Senior Member

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    So the actual voltage readings on the fob batteries are?
     
  12. bisco

    bisco cookie crumbler

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    anything in the o/m about a 3 beep warning?
     
  13. jerrymildred

    jerrymildred Senior Member

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    I looked yeasterday. There were a couple, but they were outside beeps. I don't recall seeing any inside 3-beep warnings.
     
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  14. bisco

    bisco cookie crumbler

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    where is the outside beeper, under the hood?
     
  15. ericbecky

    ericbecky Hybrid Battery Hero

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    Any chance your car has an EV button installed?
     
  16. dolj

    dolj Senior Member

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    Nope, it is in the front of the RF guard.
     
  17. philipc

    philipc Junior Member

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    Any chance that the back end of the car slid a little when you heard the beeps? I know in mine if i go around a corner in snow a little too quick and the back slides it will do 3 quick beeps. You're in San Diego so doubt that snow and sliding is your issue but just a thought.
     
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  18. bisco

    bisco cookie crumbler

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    still could be a vsc issue though, but usually you get lights
     
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  19. philipc

    philipc Junior Member

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    I agree could still be a VSC. From my experience no VSC light (or any lights) come on when it does the beep so if its miss reading a skid its possible there will be no light.
     
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