
Sounds like a lot with factory sensors supposed to automatically detect my 2016 Ram. My TPS worked fine on my other wheels before they were installed on a new set of Americas tires for me. All were the same 400MHz. I tried increasing the pressure to 39 pounds and drove the truck a lot of miles. Haven't read anything yet, just the "=" character. Others who claimed they had dead batteries were probably right. I should have listened to her. Now I have over $130 and I can't get it back. By the way, Americas Tire will NOT install your TPS sensors anymore. Now they each have to pay $70 for their new policy. They had too many complaints about these (and others) not working. If mine suddenly works I'll update this review.