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JSCAN for changing TPMS warning from 30psi to 25psi

JT1

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Just like the title asks, I'm trying to get the TPMS warning to illuminate at 25psi instead of the factory 30, and I can't find the correct menu/option. Thanks
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ShadowsPapa

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Just like the title asks, I'm trying to get the TPMS warning to illuminate at 25psi instead of the factory 30, and I can't find the correct menu/option. Thanks
The warning is set to trigger at 25% lower than the tire pressure setting. So if you change the tire pressure setting, you change the warning as well.
The warning trigger I believe is set by law, but you can set the tire pressure setting which has the effect of lowering the warning number.
I lowered the number for my tires since they were just a tiny bit larger than stock and checked and sure enough, it dropped the trigger and it happened to be at about 25% below the tire pressure I had set.

So you set the tire pressure number, not the warning pressure level.
 

Russ2023

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What he ^ said.
 
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Biggy

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Keep the light load setting at 0psi
Set the max load at the pressure you are planning to inflate your tires to. It will trigger around 25% below your max load setting.
 
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JT1

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Keep the light load setting at 0psi
Set the max load at the pressure you are planning to inflate your tires to. It will trigger around 25% below your max load setting.
Yep! Got it handled
Set max load to 30 psi and dropped them all the way to 27 and the light didn’t come on, we are good to go!
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