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8-10 beeps with no warning lights

Discussion in 'Prime Main Forum (2017-2022)' started by sistersinhim, May 23, 2021.

  1. sistersinhim

    sistersinhim Junior Member

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    I was in the hybrid/Evo mode most of the time after driving for about an hour. 2X I had a series of 8-10 higher pitched beeps with no explanation. An idea of what this can be? I have less than 5000 miles on my 2020 Prime.
     
    #1 sistersinhim, May 23, 2021
  2. bisco

    bisco cookie crumbler

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    one of the sensor warning systems?
     
    #2 bisco, May 23, 2021
  3. road2cycle

    road2cycle Active Member

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    Did you see the screen next to the speedometer blinking red? By any chance were you on a curvy road with cars parked on the side? That’s what caused my Prime to beep similar to what you experienced. I thought something broke until I noticed the screen was red and flashing something about braking.
     
    #3 road2cycle, May 23, 2021
  4. sistersinhim

    sistersinhim Junior Member

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    Thank you for your reply. It happened in the same area twice. I was not looking at the speed, but to where the alarms usually flash. There was nothing there. Since it was the same area twice, I assumed that nothing was wrong with the car. I looked over the owner's manual but saw nothing that it could be.
     
    #4 sistersinhim, May 24, 2021
    Last edited: May 24, 2021
  5. sistersinhim

    sistersinhim Junior Member

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    Who knows? There were no flashing warning lights.
     
    #5 sistersinhim, May 24, 2021
  6. rdgrimes

    rdgrimes Senior Member

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    Sounds like the pre-collision system (PCS) warning. The on-screen warning can vanish pretty quickly.
    There are circumstances that can trigger PCS, like metal plates in the road, curves with guardrails, etc. etc. If it only triggers for a second, the on-screen warning only lasts for that second.
     
    #6 rdgrimes, May 24, 2021
  7. sistersinhim

    sistersinhim Junior Member

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    Wow, that makes sense. There were old railroad tracks that we crossed over twice at almost the same time. It sounds like it's nothing to worry about. Thank you.
     
    #7 sistersinhim, May 24, 2021
    Toyo_Tom likes this.
  8. sam spade 2

    sam spade 2 Senior Member

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    I think you need to drive that route again a bit more slowly so that you can observe what lights might be flashing.
    If it IS a false trigger of the collision warning system, you NEED to know how that warning displays........so that in the future you don't say "What is that damn beeping"........CRASH.
     
    #8 sam spade 2, May 24, 2021
  9. Gokhan

    Gokhan Senior Member

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    What is "Technology AWD-e?" What trim of Prius Prime do you have?
     
    #9 Gokhan, May 24, 2021
  10. rdgrimes

    rdgrimes Senior Member

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    Depending on your year model and trim, you can adjust sensitivity on the PCS.
     
    #10 rdgrimes, May 24, 2021
  11. SCdave

    SCdave Junior Member

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    Or possibly Traction Control came on with a high pitch warning sound. Were you braking at the same time? If so, did the braking feel different like a split second slip? There would also be a very brief Traction Control Warning Light on dash?

    Or prior to Tracks or After was there a slight curve and you went over painted road lines on Lane Departure Alert came on?

    The LDA is not as high pitched as the Traction Control Chirp.

    I've never experienced 8-10 of these warning sounds though.

    Posted via the PriusChat mobile app.
     
    #11 SCdave, Jun 4, 2021
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