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rtate's avatar
rtate
Explorer
Feb 13, 2016

TPMS Tire pressure monitoring System

I just installed A TPMS System and noticed that If I leave the monitor turned on and leave my trailer, the monitor continues to report the last temperature and pressure it received when I was hooked to the trailer.

This is telling me that when towing, if it loses contact with a particular tire it will act like it is transmitting reliable data when it is the last temperature and pressure it was able to read.

This is very misleading. You could actually be running on a flat tire and the monitor is telling me everything is ok.

Is there a way to change this maybe thru a default setting?
Tow Vehicles

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  • agesilaus's avatar
    agesilaus
    Explorer III
    Feb 13, 2016
    rtate wrote:
    agesilaus wrote:
    Is this system wired? Unlikely, it is probably wireless and uses a radio signal. So even if the trailer is unhooked you may still be close enough to pick up the signals from the trailer tires.

    The brand is TPMS, model 536. I drove fifty miles away. Don't think it was still picking up from the sensors.


    Probably not....heh. We have the TPMS and I have not been too pleased with it.
  • rtate's avatar
    rtate
    Explorer
    Feb 13, 2016
    agesilaus wrote:
    Is this system wired? Unlikely, it is probably wireless and uses a radio signal. So even if the trailer is unhooked you may still be close enough to pick up the signals from the trailer tires.

    The brand is TPMS, model 536. I drove fifty miles away. Don't think it was still picking up from the sensors.
  • EV2's avatar
    EV2
    Explorer
    Feb 13, 2016
    Without knowing your brand and model, we can only generalize. If you had only one sensor your scenario could possibly exist, but when moving the sensors update the info quite frequently. If one sensor updates, the software expects all of the sensors to update. If one does not report a flag is set to notify that the sensor is missing.
  • 45Ricochet's avatar
    45Ricochet
    Explorer
    Feb 13, 2016
    Which one did you get?
    I wouldn't think it should report anything. Most MH's actually have to use a repeater to get the signal from the vehicle that's being towed.
  • fj12ryder's avatar
    fj12ryder
    Explorer III
    Feb 13, 2016
    Without knowing the brand of TPMS you are speaking of, it's impossible to offer any meaningful advice. However, most are not adjustable.

    You've hit on an issue that should be a concern to anyone using a TPMS: is it actually reporting like it's supposed to be?
  • agesilaus's avatar
    agesilaus
    Explorer III
    Feb 13, 2016
    Is this system wired? Unlikely, it is probably wireless and uses a radio signal. So even if the trailer is unhooked you may still be close enough to pick up the signals from the trailer tires.

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