Tire pressure monitor system

Discussion in 'Gen 4 Prius Main Forum' started by Charlie M, Dec 1, 2024.

  1. Charlie M

    Charlie M Junior Member

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    Has anyone had to replace the tire pressure sending unit in the tires? My light is on but all tires have the same, and correct, tire pressure.
     
  2. bisco

    bisco cookie crumbler

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    could be a dead battery after 8 years. a proper scanner will tell you which one
     
  3. AzWxGuy

    AzWxGuy Weather Guy

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    There is a TPMS reset function in the settings to perform after all tires have the proper pressure. Could also be a dead battery in one or more monitors. Tire shops can easily, and will usually, check the TPMS senders and can rebuild them with a battery change.
     
  4. Mendel Leisk

    Mendel Leisk Witness Leader

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    Ignoring them is always an option, at least till the next time you do a tire replacement. Or longer…

    still, seems early for a 4th Gen.
     
  5. FuelMiser

    FuelMiser Senior Member

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    If the TPMS light flashes for 1 minute upon power ON, then goes steady, it means there is malfunction with the sending units. A reset will not fix it. Just happened to me on the original sending units, and I'm going to wait until I have to change tires again.
     
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