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low tire pressure light

Discussion in 'Wheels & Tires' started by MicahTX, Dec 18, 2016.

  1. Dec 18, 2016 at 2:44 PM
    #1
    MicahTX

    MicahTX [OP] New Member

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    My low tire pressure light just came on. I checked all four and added air to the recommended pressure (posted in the door well), but the light is still on. Could it be the spare? Before I pull it out, I want to hear from some members. Thanks.
     
  2. Dec 18, 2016 at 2:46 PM
    #2
    TXRailRoadBandit73

    TXRailRoadBandit73 TOYOTA,RAILROADER,RÖKNROLLN',BEER,BACON,FURBABIES

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    None yet
    It's probably a faulty TPMS
     
  3. Dec 18, 2016 at 2:47 PM
    #3
    zlaneb

    zlaneb New Member

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    First - stock tires and if not did the pressure sticker in the door sill get updated? Second, yes, could be your spare, it was mine on my old truck. Finally, read in your manual, once you get them to the pressure you want, follow instructions for resetting the pressure rating.
    The cold will definitely impact tire pressure....
     
    NewImprovedRon likes this.
  4. Dec 18, 2016 at 2:59 PM
    #4
    MicahTX

    MicahTX [OP] New Member

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    It a new truck with only 1100 miles so I wouldn't think it's the monitor, but anything's possible. It is cold here right now (38 degrees is cold for Houstonians). I'll drive it tomorrow to see if it goes out by itself. If that doesn't work, I'll check the manual then check the spare. Thanks.
     
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  5. Dec 18, 2016 at 3:03 PM
    #5
    Seadawg1

    Seadawg1 New Member

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    Mine, is doing the same thing. For 2 weeks now, and in fact 2 of the tiese were 4/5 lbs over. And this was before the cold snap. I checked my tires and they are all within specs. I will going to the dealer and let them tell me. Crazy isn't it.
     
  6. Dec 18, 2016 at 3:12 PM
    #6
    joonbug

    joonbug bacon

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    I haven't had to mess with it yet, but does the reset button have anything to do with it?
     
  7. Dec 18, 2016 at 3:27 PM
    #7
    MicahTX

    MicahTX [OP] New Member

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    There's a reset button? I just thought it went out when the pressure was corrected.
     
  8. Dec 18, 2016 at 3:29 PM
    #8
    BlueFalconActual

    BlueFalconActual Field Day Inspector Extraordinaire

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    Make sure you check the spare as well. Im not sure about the tundra, but some cars take a mile or so of driving before it resets.
     
  9. Dec 18, 2016 at 3:30 PM
    #9
    MicahTX

    MicahTX [OP] New Member

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    OK. I'll check it out. Thanks.
     
  10. Dec 18, 2016 at 3:49 PM
    #10
    MicahTX

    MicahTX [OP] New Member

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    All good ideas. Thanks.
     
  11. Dec 18, 2016 at 4:00 PM
    #11
    COMiamiFan

    COMiamiFan SSEM #3. Don't forget to try the search bar. #PSL

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    Did you fill up recently? Could be gas cap too I believe.
     
  12. Dec 18, 2016 at 4:57 PM
    #12
    T-Rex266

    T-Rex266 Sushi, and Teslas Staff Member

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    How does a low pressure light tie into the gas cap :notsure:
     
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  13. Dec 18, 2016 at 5:05 PM
    #13
    ej63090

    ej63090 New Member

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    9/10 it's the spare if your other pressures are within the TPMS tolerances.
     
  14. Dec 18, 2016 at 5:26 PM
    #14
    joonbug

    joonbug bacon

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    Hmmm. I just got my TPMS turned on on my new wheels and the guy at Americas Tire said my spare doesn't have TPMS.
     
  15. Dec 18, 2016 at 5:28 PM
    #15
    ej63090

    ej63090 New Member

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    I haven't worked for Toyota for three years so it may be different. But I'm pretty sure a full size spare especially a 5th wheel would typically have a sensor.
     
  16. Dec 18, 2016 at 5:32 PM
    #16
    George14

    George14 New Member

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    My tire was low put air in it light went out
     
  17. Dec 18, 2016 at 5:35 PM
    #17
    trayday

    trayday New Member

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    Try resetting it. I deflated my tires 3 days ago and reset them after I refilled my tires. Turn the key to ACC, press and hold the button located on the bottom right side of your steering column, the light will blink 3 times. Release the button and let sit for 5-6 mins with the key still on ACC. Should reset.
     
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  18. Dec 18, 2016 at 5:47 PM
    #18
    MicahTX

    MicahTX [OP] New Member

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    This is getting interesting... I did refill my gas tank, today. Hard to see how the two are tied together, but the cap is easy to check. The manual did say to fill the tires to the correct pressure and the light will go out after a few minutes. Will check that, tomorrow. FYI - I did find the reset button. Pushed it a couple of times, but nothing happened. Still will check the spare if nothing else works.
     
  19. Dec 18, 2016 at 5:51 PM
    #19
    joonbug

    joonbug bacon

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    Gas cap will trigger the CEL. TPMS has its own light.
     
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  20. Dec 18, 2016 at 8:10 PM
    #20
    COMiamiFan

    COMiamiFan SSEM #3. Don't forget to try the search bar. #PSL

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    In the past, if you didn't close gas cap correctly, it would trigger low pressure warning. So one had to open and close it again. Not sure if that still works that way. So I threw it out there just in case it was a possibility.
     
  21. Dec 18, 2016 at 8:15 PM
    #21
    csuviper

    csuviper Moderator Staff Member

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    It's the spare!!!!!!!!!!!!!!!!!!
     
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  22. Dec 18, 2016 at 8:15 PM
    #22
    csuviper

    csuviper Moderator Staff Member

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    Correct, not the gas cap.
     
  23. Dec 18, 2016 at 8:17 PM
    #23
    MotoTundra

    MotoTundra The Ocho

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  24. Dec 19, 2016 at 5:47 AM
    #24
    Sixpack

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    X3, it's the spare, and then hit the reset button...
     
  25. Dec 19, 2016 at 10:23 AM
    #25
    bsavoir

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    The spare has a TPMS, when a new tire is introduced it needs to relearn for that sensor in which the reset set button can do so. What type of rims do you have? Alloy rims and steel rims have different TPMS. The computer can only read one type at a time. I When I bought my new alloys rims I couldn't figure it out until I did some research and took it to a tire shop near by and he confirmed my suspicions. Based on you picture it looks like alloy not steel, and I would assume the spare would be steel as mine was.
     
  26. Dec 19, 2016 at 10:40 AM
    #26
    Junior4888

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    My air pressure light comes on every day about 1 mile from my house and blinks for about 2 min and then goes back out. I am thinking it is due to the cold weather 15 degrees in the morning. That's the only time it comes on though. It does it every morning for the last month.
     
  27. Dec 19, 2016 at 10:59 AM
    #27
    Law323

    Law323 it’s only weird if you make it weird

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    Had to do this once during a cold snap with my stock tires. Re inflated my tires went out after a couple miles. Haven't had to do it since.
     
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  28. Dec 19, 2016 at 11:16 AM
    #28
    trainracer

    trainracer New Member

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  29. Dec 19, 2016 at 1:36 PM
    #29
    bsavoir

    bsavoir New Member

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    Same here, I live in Twentynine palms, CA and the temp in the morning is cold, but after a couple hours it warms up and the light goes away, but be mindful inflating in the morning because it cold could cause the tire to over inflate in the afternoon depend on how much it drops and you fill it up to. Once winter sets in usually I will fill it in the morning and it will be good as the temp doesn't really affect the tires.
     
  30. Dec 20, 2016 at 7:19 AM
    #30
    MicahTX

    MicahTX [OP] New Member

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    Breaking news!! The light has gone out! After re-inflating all tires to the correct pressure, I drove my truck a few miles and it went out. (Just like the owner's manual said.) Glad I didn't have to pull the spare out to check it. Would be nice to have the same feature my wife has on her Lexus - display shows all four tires and pressure for each. Maybe that feature is available for some models, but not my TSS SR5. Takes the guess work out it. Thanks, again everyone, for your help.
     

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