1. Attachments are working again! Check out this thread for more details and to report any other bugs.

2009 Gen 2: tire inflation light won’t go out

Discussion in 'Gen 2 Prius Technical Discussion' started by jbean, May 18, 2021.

  1. jbean

    jbean Junior Member

    Joined:
    Oct 10, 2008
    78
    7
    0
    Location:
    California
    Vehicle:
    2009 Prius
    Model:
    II
    I added air in my tires and the dealer reset the tire inflation light but it still stays on. Does anyone know if this is a big deal to troubleshoot and fix?
     
    #1 jbean, May 18, 2021
  2. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,855
    3,968
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    Start with reading the codes and looking at the TPMS live data. Hopefully, with this information, it will be clear where the problem lies.
     
    #2 dolj, May 18, 2021
  3. jbean

    jbean Junior Member

    Joined:
    Oct 10, 2008
    78
    7
    0
    Location:
    California
    Vehicle:
    2009 Prius
    Model:
    II
    I should have mentioned, I’m not a DIY person so someone else will be troubleshooting. Just wondering if this could be an expensive repair.
     
    #3 jbean, May 18, 2021
  4. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,855
    3,968
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    Depends on what is wrong. I'm leaning towards one or more of the TPMS sensor batteries that has/have gone flat.

    They are expensive for what they are, but it would be cheaper if you change the sensor(s) when you next change your tires.

    Reading the codes will let you know for sure.
     
    #4 dolj, May 18, 2021
    Raytheeagle likes this.
  5. jbean

    jbean Junior Member

    Joined:
    Oct 10, 2008
    78
    7
    0
    Location:
    California
    Vehicle:
    2009 Prius
    Model:
    II
    I’ll find out tomorrow if I need new tires. Why would it be cheaper to change the sensors at that time? Because of the location of the sensors?
     
    #5 jbean, May 18, 2021
  6. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,855
    3,968
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    Yes, the tires need to be deflated and moved out the way to replace the sensors, so it is no extra labor to do it when you change to new tires.

    To be clear, you do not need to change your tires if there is still good tread left. Just wait until they are worn out and then put new sensors and tires at the same time.
     
    #6 dolj, May 18, 2021
    Skibob, Raytheeagle and jbean like this.
  7. jbean

    jbean Junior Member

    Joined:
    Oct 10, 2008
    78
    7
    0
    Location:
    California
    Vehicle:
    2009 Prius
    Model:
    II
    Thank you so much for your help!
     
    #7 jbean, May 18, 2021
    Raytheeagle and dolj like this.
  8. 120m256

    120m256 New Member

    Joined:
    Jun 10, 2021
    17
    9
    0
    Location:
    Arizona
    Vehicle:
    2007 Prius
    Model:
    Base
    @jbean here is your $1 fix:
    [​IMG]
     
    #8 120m256, Jun 11, 2021
(You must log in or sign up to post here.)