hey guys and gals i have a quick question regarding my is350 F sport tire pressure sensors. well i have after market wheels with the stock tire pressure sensors, when they were first installed everything was fine, now about 2 months later now that it is a lil cooler here in houston my two back sensors are showing the warning light. it still reads the pressure and shows correct pressure but sensor warning light for both rear tires are on. anyone have any idea why this is? i was thinking the colder weather but why only the rear two and not the front. they go off and on but lately both have been on. has anyone else experienced this?

 

As far as I remember, there's only 1 tire sensor light which is the main yellow one that lights up.
Is that yellow light on along with the lcd indicator on the fsport gauge for each rear tire?

Pics may help .
It is odd that they're reading pressure if its some malfunction.

 

Yeah. My sensors do the same thing and I have the stock f-sport wheels. I had all of my tires around the 30 psi mark and when they dip below 28 the warning indicator would come on (usually when the temp changes dramatically from hot to cold or cold to hot). The solution was filling them all up to around 40 psi. They will still fluctuate about 2-4 psi daily but nothing low enough to trigger the warning indicator anymore.

 

i keep mine at 36 psi,I air them up when it drops to 33 psi