Before the introduction of TPMS, a tire valve was a simple part. Either it held air or it didn’t, and if it didn’t you replaced it. Now, with TPMS, the valve assembly is an integral part of an essential safety system that’s been mandated by Federal law. If the valve assembly is compromised, so is the entire Tire Pressure Monitoring System.
Service parts can corrode and lose proper functionality over time. Replacing the TPMS service parts is needed to ensure you’re returning the vehicle to the customer with the tire safety system operating as designed.