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Tire pressure warning 2012 PIP

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by ppimd, Oct 5, 2015.

  1. ppimd

    ppimd Member

    Joined:
    Apr 22, 2012
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    Location:
    Maryland
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Advanced
    3-4 times since 2012 the low pressure warning light has come on. A few times in early morning with cool temps overnight. Now after service at a dealership where they did a 20 point check, the day or so after picking up, the light came on, the front right tire was low 26-27. I filled the tires and a few weeks later the light came back on, the right rear tire is 1-3 lbs low, I just last night filled all tires to 37 and will check what happens next, any thoughts?
     
  2. luckyboy

    luckyboy Member

    Joined:
    Feb 16, 2007
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    Vehicle:
    2007 Prius
    Either you have a small leak in the tire of the dealer didn't check the air pressure right at service.
     
  3. ppimd

    ppimd Member

    Joined:
    Apr 22, 2012
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    Location:
    Maryland
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Advanced
    I Know it's either a leak or sensor malfunction one or the other, the only way I know to check is fill all tires to the same pressure and check pressure often and see if light comes on with all tire pressure the same.
     
  4. angelahortega

    angelahortega Junior Member

    Joined:
    Jul 17, 2015
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    Location:
    Ukiah
    Vehicle:
    2012 Prius Plug-in
    Model:
    ----USA----
    This is happening to me too. It was just serviced
    It's happened to me three times now
     
  5. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Maybe your TPMS was previously set with the tire pressures higher? This could cause the light to come on with even minor pressure drop. Get your tire pressures as you want, do the reset procedure, see if that helps?