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Tire pressure sensor light now stays on with change to new tires: how do you reset this?

Discussion in 'Gen 2 Prius Main Forum' started by local_host, Sep 2, 2009.

  1. local_host

    local_host New Member

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    What's the straight answer on this? I assume this is a very common problem? I've went through a few posts on this forum, but it just left me confused.

    Took the car to my dealer last week and they said the sensor was "broken" and would cost me $200 for repairs. Wth?? That's like half the price of having the new tires put it!

    What's strange is that I got the tires swapped out over a month ago and now the light is just coming on. Coincidentally after an oil change and tire rotation.
     
  2. Reformed SUV guy

    Reformed SUV guy New Member

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    My 2008 has a tire pressure sensor reset button directly below the steering column. It is right beside the on/off switch for the SmartKey system.
     
  3. Politburo

    Politburo Active Member

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    I'm confused. You seem to be saying the light was NOT on after the new tires, but came on after an oil change. That contradicts the subject line.
     
  4. local_host

    local_host New Member

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    Yeah I just mentioned it came on after the oil change but didn't think there was any relevance to it other than being coincidental (as told by Toyota dealer). The dealer believes it was damaged during the tire change- But made this assessment after a couple of minutes so I'm rather suspicious that anything is actually broken.

    Very strange that there's no way to just shut it off entirely. I mean I survived my whole life without one of these sensors, it certainly doesn't matter to me now. The light is really annoying, especially at night because it stands out with a different color than the other lights on the dash.
     
  5. local_host

    local_host New Member

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    Thanks I tried that particular reset button, but it didn't shut it off. Sorry I should have asked if there's a "trick" reset/shut-off not listed in the manual. Like disabling the backup alarm.
     
  6. JimN

    JimN Let the games begin!

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    If proper application of the tps button doesn't work then a sensor is damaged. The cheapest fix is a piece of electrical tape over the offending light. Whether you like it or not tps is or soon will be Federally required--just like the 3rd brake light.
     
  7. local_host

    local_host New Member

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    Is the shop that replaced the tires liable for the damaged sensor, and if so, how do I prove it (anyone with experience here?)
     
  8. Boo

    Boo Boola Boola Member

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    I remember reading here that someone got their tire shop to pay for the damaged sensor. The tire shop damaged it, it should be liable.

    Notwithstanding the increasing prevelance of TPMS, it's good to tell one's tire shop to watch out for and not damage the TPMS.

    Your dealer's quote of $200 sounds about right. One sensor alone is a little over $100, plus there are installation/sensor registration charges.
     
  9. qbee42

    qbee42 My other car is a boat

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    Yes. Have your dealer document the damage.

    Tom
     
  10. robrian7

    robrian7 New Member

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    This exact issue occurred with a recent oil change/tire rotation I received with my new 2010 Toyota Prius. Shortly after they rotated my tires, the tire pressure light went on. I took my car back to Toyota and they told me that they did not put enough air pressure in the tires. They resolved the incident and the light remains off.
     
  11. Guy in WNY

    Guy in WNY Junior Member

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    I presume you've checked your tire pressures and they are all OK? But even if they are out of whack, wouldn't resetting the TPMS button make the light go out anyway? So, it does sound like a bad sensor someplace.
    Why it decided to show up after the dealer did work to your car is what I can't understand.
     
  12. morpheusx

    morpheusx Professor Chaos

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    when you tried to reset the switch did you hold it for like 5 seconds until the light in the dash flashed.
     
  13. Mike Dimmick

    Mike Dimmick Active Member

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    If they rotated the tyres, then inflated the fronts (brought forward from the rear) and deflated the rears (brought back from the front) to match stock pressures, it could just about be enough to trigger the warnings.

    Check the pressures with a decent gauge - filling station air lines have notoriously inaccurate gauges - and if they're where you want them, press the reset button.
     
  14. Rangerdavid

    Rangerdavid Senior Member

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    thanks your answer.


    :D
     
  15. acacia987

    acacia987 Junior Member

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    you may be referring to me. the tire shop owned right up to it and bought a new one and is taking care of the issues with registering a new TPMS with the car ($96 quote from toyota). I cant see myself ever paying to get new sensors if the ones i have now fail. i could see getting all new sensors installed costing more then a set of really nice tires. I will have the black tape ready.
     
  16. local_host

    local_host New Member

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    So it was all because they were under-inflated? How long ago was this and is the light still off? On my last oil change I requested they put in 38 psi. When I checked later, all 4 tires were nearly the same except one was slightly under -- I filled it later, and the light still remains on. What's strange is that the sensor issue happened soon after this maintenance, which was over a month after my actual tires were replaced. But the dealer assured me the sensors can't get damaged with just oil change/tire rotation.
     
  17. local_host

    local_host New Member

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    Yes I did that as stated in the manual. I imagine there's a trick to get it to shut off permanantly. I'm certainly not dumping $200 into this.
     
  18. local_host

    local_host New Member

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    I actually stopped going to the dealer for oil change and tire rotation with the purchase of 4 new Michelins. Up until last month, I went to a Toyota dealer every single time in order to keep up with the policy of my Extra Mile Tire Warranty (which turned out to be worthless by the way).
     
  19. local_host

    local_host New Member

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    The saga continues:

    Just got back from original tire replacement shop (well known chain) and they used an electronic tool to check each sensor. All 4 checked out as "active", which I take it means OK. I watched them perform the procedure.

    Toyota claims THEIR (more expensive) tool says that one is defective, and they want to charge over $200 to "fix" it. Tells me to ask how much tire shop will reimburse for damages. Tire shop management doesn't return message.

    No one mentions anything about re-programming internal computer............

    What a pain in the *ss. I'm about to crack this case with a piece of black tape. Been driving for 20 years without these d*mn sensors. But then what happens when I go to sell/trade in?