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Discussion Starter #1
What does it take for the TPMS to alert? I am taking a road trip tomorrow so I was checking my tire pressure and both rear tires were 7 psi low. I have seen nothing from the TPMS.

I wish it was like my last two cars where I could actually see the pressure of each tire.
 

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Every manufacturer sets these differently. Most vehicles are around 7 to 10 psi difference from the door placard psi but will only activate while over 15 mph. Then it will stay on until the problem is resolved. Rest assured that they will set a light before it is dangerous unless it is a quick deflation. It is federally mandated to work in certain parameters.
 
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