Hi--

I have a 2004 Pacifica. I am getting the infamous message: "Service Tire System Soon".

I am trying to isolate which pressure sensor might be the bad one. I inflated each tire to >50PSI and took the car for a drive. The system said "4 Tires High Pressure". (I was then going to bring each sensor one-by-one back to normal). So it seems like the sensors can at least intermittently deliver correct information. Why then do I get the "Service Tire System Soon message?

Thanks,
Tim

 

Batteries? Aren't those things battery powered? After 7 years, it's probably time to replace the batteries.