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TPMS lifespan?

Discussion in 'Gen 2 Prius Main Forum' started by gring40, May 14, 2023.

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  1. gring40

    gring40 Junior Member

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    We have a 2006 with 40k miles, so about 2.5k a year, mostly local. All tires had a slow leak, faithfully reported by TPMS, reportedly due to ‘dry rot’, maybe rim leaks, but OK tread; no water-test leaks evident. We got new tires and the leaks are gone; TPMS is happy. Understand that TPMS battery lifespan should be about 7 years, and cannot figure how the system can still be working well after 17 years now. Any insight or explanation for this?
     
  2. bisco

    bisco cookie crumbler

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    none. mine is still going strong after 11 years. hard to figure, maybe worse in southern heat?
     
  3. sam spade 2

    sam spade 2 Senior Member

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    Are you REALLY saying that you were driving on 16 year old tires ??

    If so, that is beyond stupid. :eek:
     
  4. bisco

    bisco cookie crumbler

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  5. ChapmanF

    ChapmanF Senior Member

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    I had one transmitter poop out about a year ago at 12 years. Other 3 still keep on ticking.
     
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  6. ColoradoCrow

    ColoradoCrow Active Member

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    My 2008 need all 4 replaced last year. Colorado cold was hard on all batteries.
     
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  7. gring40

    gring40 Junior Member

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    Oh no, tires have been replaced several times, as needed. Saying that TPMS system is original.
     
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  8. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    The TPMS light on our ‘10 (build date August’09) lit up about a month back (about a month after reinstalling OEM’s), and I thought ok that’s it for the sensors. Then after a few days light went out again.

    It was pretty chilly when the light triggered, but now,
     

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    #8 Mendel Leisk, May 14, 2023
    Last edited: May 14, 2023
  9. gring40

    gring40 Junior Member

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    I find it normal for tire pressures close to the TPMS threshold to trigger the warning lamp when it is chilly, and then to turn the lamp off when the weather gets warmer.
     
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  10. ChapmanF

    ChapmanF Senior Member

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    When the time comes for your transmitters to poop out, look for the warning light to blink for a minute and then turn steady.

    Did they all poop out at once (C2121, C2122, C2123, C2124 trouble codes all at the same time)? Or did they all get replaced on principle, after one pooped out?
     
  11. Tombukt2

    Tombukt2 Senior Member

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    The pacific branded sensors that came on car are only 39x a set of four on e bay . We use the green logo units
     
  12. sam spade 2

    sam spade 2 Senior Member

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    Heat is hard on batteries, all kinds.
    Just keep driving until one fails and then replace all 4 if you intend to keep the car.
    I think most people don't have to worry until about 10 years.
     
  13. gring40

    gring40 Junior Member

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    OK, I’ll wait for this sign plus some OBD trouble codes, tho it was scary to just replace the tires and not the TPMS.
     
  14. SFO

    SFO Senior Member

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    Pretty sure the battery usage is minimal when the wheels aren't rotating, so with only 40k on them they may last longer than others.
     
  15. gring40

    gring40 Junior Member

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    Good thought; fingers crossed!
     
  16. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    And when they fail, doing nothing is an option.
     
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  17. Aegean

    Aegean Active Member

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    At 15 years, I replaced all 4 TPMS but 2 were still fine. The TPMS lasted more time than my hybrid battery.
     
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  18. mr_guy_mann

    mr_guy_mann Senior Member

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    "Average" life span of a TPMS sensor battery is 10 years- with average driving. Much lower use will result in the sensors reporting in less frequently.

    Sensors transmit data about 1 time per minute when the car is moving, vs 1 time per 5-10 minutes when stationary. A sudden pressure change will trigger an immediate report.

    The system should turn on the warning light if pressure drops to 80% or less of "sticker" value.

    Posted via the PriusChat mobile app.
     
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  19. JoeB

    JoeB Junior Member

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    My 2009 2nd gen is at 200k miles and still appears to be on the first set of TPMS sensors. This winter, they reported accurately when either a slow leak (since fixed) or cold weather dropped a tire pressure to below normal.
     
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  20. ColoradoBoo

    ColoradoBoo Senior Member

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    Yep our extreme temps here in Colorado don't do those little batteries in the TPMS's any favors....ours usually start going out around the 10-year mark.
    So I'm expecting some to start going in my 2014 Tundra. (Just replaced her 12-volt battery but she lasted 5-years so that was good...replaced it with the same one from O'Reillys.) The battery still worked but tester was showing it was down to 40% and "replace"