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So if the light triggers at a percentage of threshold, that answers my main question. The number you put in with JScan is NOT the number that trips the light. It is a percentage less than that number. That could explain why I didn’t get a light at 37 psi when I set the number in JScan to...

Thanks. I don’t want the reverse normally. I just want to confirm the TPMS will throw a light when the pressure does drop. So rather than deflating the tire to test it, I thought I could just raise the threshold with JScan. I thought 45 would be enough to do it, but I haven’t thrown a light. So...

Thanks. But I thought the point of the Jscan TPMS setting is to lower the threshold that sets off the light for when you air down. So I would think that if I set the value at 45, I would get a light below 45, which I don’t. Or are you saying the lower limit doesn’t really change - it’s 29...

New tires put on and pressures were 35 psi. Jscan said my max load value was set at a default of 36, but I did not get a TPMS warning light. So just to check functionality, I increased the max load value to 45 with Jscan thinking my 35 psi would throw a warning light, but nothing. There are...