TPMS with Real Time PSI - Page 2 - Toyota 4Runner Forum

Curt73 · 02-10-2024, 05:45 PM

Do you know at what psi does the light come on at?

patch4r · 02-10-2024, 10:26 PM

Read somewhere the TPMs light comes on around 27 psi.

Yea, was a little concerned there was no feedback on the amzn TPMS system. But makes sense since they are 433MHz (UK?) and we use 315Mhz (US)

But that pic is what I am looking for but compatible with 315MHz. Just can not seem to find it.

Guess I could use the above 433MHz BUT my tmps light would be constantly on unless it did the disable hack (which I prefer not to do)

patch4r · 02-11-2024, 12:25 AM

Think I found a system that might work with 315MHz on amzn. Even has US reviews.

U912 Tire Pressure Monitoring System Customized for Toyota

Anyone have any experience?

Amazon.com

ArthurKotb · 02-11-2024, 10:29 AM

Quote:

Originally Posted by Curt73

Do you know at what psi does the light come on at?

I believe it's like Patch4R says, around 27 psi. I always thought it was 5 psi below the other tires but I never tested that.

If a sensor goes bad the light flashes but you don't know which one it is. Air up all the tires (spare too) then lower the pressure below 27 psi one tire at a time. If the sensor in that tire is good the light will stop blinking and stay on. If it continues to blink, that's the one with the bad sensor.

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