I have some take off Ford rims for my work truck and they don't have sensors. Stock rims and tires are in the garage for trade-in time. I just push the reset button since I don't want to drop $500 on a set of sensors for these rims. If your rims have the sensors and it is still doing it, then Ford should help solve it. If your rims don't have the sensors, you can either buy them, change them over from the stock rims, or use the reset button.