Speedometer malfunction. Why is it reading way higher than I'm actually going?

Discussion in 'Generation 1 Prius Discussion' started by Oregon Mom, Apr 5, 2022.

  1. Oregon Mom

    Oregon Mom Junior Member

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    Got in my 2002 Prius today and the speedometer is reading way way faster than I am driving. Because I have to guess how fast I was going, to keep up with traffic it said I was going 109 mph. Looking for insight and advice. Thank you.
     
    #1 Oregon Mom, Apr 5, 2022
  2. Tombukt2

    Tombukt2 Senior Member

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    I'm sure there must be some type of electronic speed sensor circuitry that gives you the two or three digit display in your dash that is speed don't know the gen one that well but something has to tell that display what numbers to put on that screen and that may be going south the part that does the sensing
     
    #2 Tombukt2, Apr 5, 2022
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  3. Oregon Mom

    Oregon Mom Junior Member

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    #3 Oregon Mom, Apr 5, 2022
  4. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    #4 JimboPalmer, Apr 5, 2022
    Last edited: Apr 5, 2022
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  5. Oregon Mom

    Oregon Mom Junior Member

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    As embarrassing as this is, I'm just going to OWN this mistake. I went out and there is a MPH/KPH on the dash. Pushed it and it went right back to MPH. My 2 year old grandson got loose in there yesterday and pushed every button he could before I caught him. Thank you for priceless help!
     
    #5 Oregon Mom, Apr 5, 2022
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  6. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Lets just say there is a reason I knew this answer. :)

    My wife's co-workers thought it was hilarious every time. 2 year olds, engineers, it is just the same.
     
    #6 JimboPalmer, Apr 5, 2022
    Last edited: Apr 6, 2022
  7. Oregon Mom

    Oregon Mom Junior Member

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    Thanks again ;)
     
    #7 Oregon Mom, Apr 5, 2022
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