1hfd

I had my wheels off today so that I could paint my calipers. While I was cleaning the inside of the wheels I noticed that "May contain sensor" was stamped on the inside of all of my wheels. Does anyone know what this means? I have stock 17" bullits.

fazm

urs dont. Ford doesnt use them in the stangs.

some of the vehicles (like expeditions) have tire pressure sensors in each rim.