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Tire pressure monitor shows horizontal lines

Discussion in '3rd Gen Tundras (2014-2021)' started by 18tundrasport, Dec 23, 2017.

  1. Dec 23, 2017 at 5:07 PM
    #1
    18tundrasport

    18tundrasport [OP] New Member

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    When I use the info center to see the tire pressures it just shows horizonal lines? ???
     
    Last edited: Dec 23, 2017
  2. Dec 23, 2017 at 5:34 PM
    #2
    RonW

    RonW New Member

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    Like all the time? Mine does it if its real cold but they usually register after a few minutes of driving. I've only noticed it in the cold though. And I've only had it 6 or so weeks...and I live in Mississippi....so it doesn't happen often.
     
  3. Dec 23, 2017 at 5:37 PM
    #3
    RonW

    RonW New Member

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    Also, I don' get any low pressure warnings or anything when it does it.
     
  4. Dec 23, 2017 at 5:38 PM
    #4
    18tundrasport

    18tundrasport [OP] New Member

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    I will have to check it again but i thought it would show the pressures right away when the truck starts. It's about 40 Degrees here
     
  5. Dec 23, 2017 at 5:39 PM
    #5
    joem1cha3l

    joem1cha3l New Member

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    I think you have flat tires
     
    BlueBottle likes this.
  6. Dec 23, 2017 at 5:40 PM
    #6
    18tundrasport

    18tundrasport [OP] New Member

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    Square tires
     
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  7. Dec 23, 2017 at 5:43 PM
    #7
    RonW

    RonW New Member

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    Yes, mine normally shows right away. Or by the time I scroll over anyway. It only does it when it gets cold.

    I have round tires though so it might not be the same.
     
    joonbug and MotoTundra like this.
  8. Dec 23, 2017 at 5:48 PM
    #8
    joem1cha3l

    joem1cha3l New Member

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    This made me LOL ha
     
  9. Dec 28, 2017 at 5:26 AM
    #9
    TTund16

    TTund16 New Member

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    is the tire pressure display for 2017 or 2018 cars? I have a TPMS but don't recall seeing any pressure display!
     
    RussellVaughan likes this.
  10. Dec 28, 2017 at 8:59 AM
    #10
    RonW

    RonW New Member

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    Mine is a 2018.
     
  11. Dec 28, 2017 at 9:03 AM
    #11
    Ely010606

    Ely010606 New Member

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    SPARKS, NV
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    Curious also on the 2017.
     
  12. Dec 28, 2017 at 9:09 AM
    #12
    kenomouth64

    kenomouth64 New Member

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    Hold the Line! If you are not holding the line, abandon your ship. Destruction is inevitable without more to hold the line!
    Between the,
    Tire pressure Light
    Windshield washer fluid Light
    Maintenance required Light

    it is as if I have a Christmas Tree on my dash...
    Luckily no 'Check engine' lights.
     
  13. Dec 28, 2017 at 9:31 AM
    #13
    18tundrasport

    18tundrasport [OP] New Member

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    2018 if you page over to vehicle it shows all four corners of tire pressures
     
    RussellVaughan likes this.
  14. Dec 28, 2017 at 9:41 AM
    #14
    Diverguy

    Diverguy Breathes under water

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    I'd guess it has to do with the low temps we are having right now. I know my pressures are down about 4-5 lbs with the cold. I've never checked mine right on start-up, but every time I've looked at mine, it's had the pressures displayed.
     
  15. Dec 28, 2017 at 9:47 AM
    #15
    RussellVaughan

    RussellVaughan New Member

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    this alone makes me want to buy an '18
     
  16. Dec 28, 2017 at 9:55 AM
    #16
    gm125800

    gm125800 New Member

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    Same here...
    Isn't it just a light which illuminates when the pressures hit a certain number?
     
  17. Dec 28, 2017 at 11:03 AM
    #17
    RonW

    RonW New Member

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  18. Dec 28, 2017 at 11:06 AM
    #18
    RonW

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    It did take about a minute to register after I started the truck. So maybe I was wrong and it doesn't come on right away. But it is colder today too. We shall test this again and again until I get an answer.
     
  19. Dec 30, 2017 at 7:27 PM
    #19
    netranger6

    netranger6 New Member

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    None. Keeping this one stock.
    You're running 30 psi?? I have 20's and BFG's and I run 48 all around.
     
    NewImprovedRon likes this.
  20. Dec 30, 2017 at 7:28 PM
    #20
    netranger6

    netranger6 New Member

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    None. Keeping this one stock.
    Mine doesn't show a pressure unit I start to roll a little bit. Not just sitting there on first start up.
     
  21. Dec 30, 2017 at 8:22 PM
    #21
    Cuzican

    Cuzican New Member

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    The reason is that to conserve battery life on the sensors, the sensors go into sleep mode when they stop moving. So when you start driving, they have to wake up, and connect to the truck before you get a reading.
     
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  22. Dec 30, 2017 at 8:45 PM
    #22
    zlaneb

    zlaneb New Member

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    Well DAMN - I don't have this on my 17 and i have bitched about this forever! My wife's jeep (2015) has it, my son's jeep has it, my wife's work car, subaru has it. I would love to have it on my tundra.
     
  23. Dec 31, 2017 at 3:28 AM
    #23
    RonW

    RonW New Member

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    It sits at about 33 cold when I use a gage. The door sticker says 30/33
     
  24. Dec 31, 2017 at 3:32 AM
    #24
    RonW

    RonW New Member

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    Well that makes sense now. It seems to take about a minute after I start the truck. I have been scrolling to that screen first thing since I've been watching it. Doesn't matter if I'm rolling or just sitting.
     
  25. Dec 31, 2017 at 5:56 AM
    #25
    18tundrasport

    18tundrasport [OP] New Member

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    This :bananadance:
     
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  26. Dec 31, 2017 at 6:51 AM
    #26
    Stulloh

    Stulloh New Member

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    Replace the head unit....the Kenwood 9904 will tell you more about the truck than the center cluster does
     
  27. Dec 31, 2017 at 9:20 AM
    #27
    TTund16

    TTund16 New Member

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    for the older models with no psi display,
    if the pressure gets too low there should be a warning light or a message. I haven't read the manual.
    there was another thread about this. tires must get very low (guessing in very low 20's) for the warning.
    it helps when if u are driving and/or not paying attention but if the tires are that low you can tell by looking at it!
    it is a good gadget but the psi display is a better gadget!
     
  28. Dec 31, 2017 at 9:48 AM
    #28
    Cuzican

    Cuzican New Member

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    My dummy light in my 17 goes off a lot higher than 20 psi, more like 28 psi, it's actually quite annoying. I've been driving for 25 years and never needed it before, wish I didn't have to have it now.
     
    geno0506 likes this.
  29. Dec 31, 2017 at 10:01 AM
    #29
    TTund16

    TTund16 New Member

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    28 seems a bit too early considering many run theirs at 30 or even lower if off road!
    I need to do a test with mine.
     
  30. Dec 31, 2017 at 11:11 AM
    #30
    ChucklesToy

    ChucklesToy New Member

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    My 2016 OM does not give a number...it only says, "As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS-tire pressure warning system) that illuminates a low tire pressure telltale (tire pressure warning light) when one or more of your tires is significantly under-inflated." However, I had a low tire warning and could not tell which tire it was without a pressure gauge, until the next morning when it was flat. I also remember that after the tire was fixed, I drove a few feet and the TP warning light reset itself (this is also in the OM). I still check my tires once a month with a gauge...
     
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