Tire pressure light not on!!

[BLRich1]

Moved to "Wheels, Tires, Brakes & Suspension - Sponsored By Tire Rack"

[suss6052]

Originally Posted by jeff_nc

Thanks for this info, suss6052. I understand the system a lot better now.

So the question is, do I need to take the car in to have the system checked? I have driven the car about 40 miles on the new wheels and still no light.

Had you driven it more than 20 miles at a time? I think that might be the triggering threshold according to what I've heard (i.e. after 20 miles continuously the car starts to fully record the tpms sensor error). I'm not 100% certain on that at the moment as my car has the original wheels and sensors on it right now and thus doesn't throw any tpms errors.

[jeff_nc]

Originally Posted by suss6052

Had you driven it more than 20 miles at a time? I think that might be the triggering threshold according to what I've heard (i.e. after 20 miles continuously the car starts to fully record the tpms sensor error). I'm not 100% certain on that at the moment as my car has the original wheels and sensors on it right now and thus doesn't throw any tpms errors.

Boy, if that's true I would call it bad design. I live in a small town and rarely drive farther than 15 miles without stopping. With that design, I could go for weeks without knowing I have a low tire.

[n122vu]

I bought a 2010 SES back in October 2012 from a Ford dealership in town. I recently tagged a curb very hard, flattening a left front tire. Last week the dealership ordered me 2 new tires (Dunlop). They installed yesterday, and today when I left work for lunch the low tire pressure warning came on. If I'm understanding some of the responses in this thread, it's because they did not install the sensor-compatible valve stems as well as sensors in these new tires.

Being a Ford dealership, and that this is a federally mandated system, is that not only something they should have known about and performed, but also informed me of ahead of time when I purchased the tires?

**EDIT** Disregard - seems one of the new tires had a bead that was messed up. Said it either came that way or they messed it up when putting it on. Getting me a new one overnighted, hoping to have it in time to put it on before they close at noon tomorrow.