It is my understanding that the tire pressure monitors are imbedded in the tire valves and, that a small transmitter provides the tire pressure data to the ES-350's monitoring system. In the past, conventional wisdom recommended replacing the tire valves whenever the tires were replaced. Is this something that should be done with the new type valves? Any idea about the extra cost? Finally, does this mean that tire replacements must be performed by the dealer?
Thanks, Alan