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Old 11-30-2019, 07:55 PM   #1
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TPMS settings

Just installed my Tire-Safe Guard unit.

For those with a TPMS...What do you have your Low/High pressure and Temp settings at?

I have my tires at 80 PSI. The default settings on this unit is 12% below for low (70.4 psi) and 30% above for high (104 psi) and 176 degrees for temp.

Thanks..
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Old 11-30-2019, 08:01 PM   #2
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I use the default settings on my TPMS. The most important measurement (I believe) is when the tire starts losing pressure quickly. That is probably a precursor warning to a blowout and/or loss of control. I also have Tyron straps installed inside each tire to allow for more control in the event of a blowout and tire collapse.
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Old 11-30-2019, 08:37 PM   #3
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Quote:
Originally Posted by krsmitty View Post
Just installed my Tire-Safe Guard unit.

For those with a TPMS...What do you have your Low/High pressure and Temp settings at?

I have my tires at 80 PSI. The default settings on this unit is 12% below for low (70.4 psi) and 30% above for high (104 psi) and 176 degrees for temp.

Thanks..
On OEM original TPMS the low threshold is generally 25% lower than recommended pressure. For an 80 psi recommended, it should set at 60 psi. High threshold only exists on a small percentage of models and honestly, I don,t consider it too useful. I think it also is +25% of recommended for the few that use it.
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Old 11-30-2019, 08:58 PM   #4
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Tires can start suffering issues at 140 degrees. I would say 175 is way to late.
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Old 11-30-2019, 09:32 PM   #5
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Tires can start suffering issues at 140 degrees. I would say 175 is way to late.
Looks like 158 is the lowest I can set it to.
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Old 11-30-2019, 09:58 PM   #6
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Quote:
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Tires can start suffering issues at 140 degrees. I would say 175 is way to late.
If I'm remembering the instructions of my TST system, the upper temperature default is 152F and the manual recommends leaving it at that setting.

Winnebago calls for 75 PSI on the front of our Minnie Winnie and 80 on the back, so the upper and lower pressure settings mentioned above are appropriate.

Our trip to the Lower-48 last summer included a loop through Arizona and New Mexico in temps up to 115 degrees and neither tire pressures or temperatures even came close to the max settings.

Thus, I would agree that the primary function of the TPMS is to let you know if a tire is either slowly or suddenly losing pressure, or a sharp temperature rise might indicate a low tire that somehow didn't already trigger the pressure alarm or maybe an overtemp due to a brake or bearing problem.
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Old 12-01-2019, 07:07 AM   #7
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If I'm remembering the instructions of my TST system, the upper temperature default is 152F and the manual recommends leaving it at that setting.

Winnebago calls for 75 PSI on the front of our Minnie Winnie and 80 on the back, so the upper and lower pressure settings mentioned above are appropriate.

Our trip to the Lower-48 last summer included a loop through Arizona and New Mexico in temps up to 115 degrees and neither tire pressures or temperatures even came close to the max settings.

Thus, I would agree that the primary function of the TPMS is to let you know if a tire is either slowly or suddenly losing pressure, or a sharp temperature rise might indicate a low tire that somehow didn't already trigger the pressure alarm or maybe an overtemp due to a brake or bearing problem.
Yes, that + or - 25% of recommended pressures is pretty good. Too tight a window and you'll be constantly dealing with alerts going off due to temperature variations that raise or reduce pressure.

Most automotive OEM TPMS have temperature sensing capability but I can't recall a single one that will use that info to turn on the light. I'd venture to say the same holds true on any RV or motorhome as well. If a bearing or brake issue is raising tire temps to the point the TPMS would set a light I'm pretty sure you'll have catastrophic failure before you know it. The wheel dissipates a lot of heat especially when it's turning.

The large part of tire failures and blowouts is low tire pressure creating heat and friction. The pressure part of TPMS is the lifesaver here.
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