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TPMS light came on

Discussion in 'Gen 3 Prius Main Forum' started by skm009, Aug 18, 2010.

  1. skm009

    skm009 Member

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    Last night the TPMS light came on on my month old 2010 Prius. I checked all the tire pressures and they we @ 38 rear and 40 front.

    TPMS light went off after 4-5 times of turning the car on/off.

    What might have been the problem? Is it something I need to be concerned about? Anyone had this issue on their new 2010?
     
    #1 skm009, Aug 18, 2010
  2. spiderman

    spiderman wretched

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    Have you tried the reset/set button under the dash? Read about it in the Owner's guide. Since those pressures are higher than normal, you might want to set the monitor.
     
    #2 spiderman, Aug 18, 2010
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  3. skm009

    skm009 Member

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    I will try doing that, but the tires have been on these pressure for almost 20-30 days now. Any reason why the light came on now?
     
    #3 skm009, Aug 18, 2010
  4. mwok86

    mwok86 New Member

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    How do I see the tire pressure? Does the dashboard tell you the pressure of each tire? Which button do I press?

    (I'm at work and do not have access to the dashboard or manual)
     
    #4 mwok86, Aug 18, 2010
  5. spiderman

    spiderman wretched

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    Change in temps could move the pressure of a tire outside of the range and set off the sensor. I think someone mention +/- 5psi range before the light goes off. Just a guess though.
     
    #5 spiderman, Aug 18, 2010
  6. PriusG3IV

    PriusG3IV New Member

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    On my HyHi, the spare tire (full size) also has a TPMS sensor. I'm not certain about the Prius G3 (donut) I don't have my manual handy since I'm at work - but it might be worth checking.
     
    #6 PriusG3IV, Aug 18, 2010
  7. qbee42

    qbee42 My other car is a boat

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    You use a special tool called a tire pressure gauge, which can be purchased at any auto parts store. ;)

    (Sorry, I couldn't resist, but that is the only way to get your tire pressure readings on a Prius.)

    Tom
     
    #7 qbee42, Aug 18, 2010
  8. jdcollins5

    jdcollins5 Senior Member

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    Your G3 spare tire does not have a TPMS sensor.
     
    #8 jdcollins5, Aug 18, 2010
  9. LulzChicken

    LulzChicken Prius Enthusiast

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    #9 LulzChicken, Aug 19, 2010
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