TPMS sensors operate in one of the harshest environments found in today's cars and light trucks, inside the wheel and tire assembly. TPMS sensors are exposed to moisture, road salt, debris, heat, sunlight, and the occasional curb. The best way to get maximum service life from TPMS sensors is to properly maintain them.
Tire and vehicle OE manufacturers agree, that every time the tire is taken off the wheel, the TPMS sensor should be serviced. How do you service a TPMS sensor? I'm glad you asked. TPMS sensors are typically mounted to the valve stem. The valve stem is either rubber or aluminum. In either case, there are serviceable parts to each, and they should always be replaced whenever taking the tire off the wheel.
Information provided by Bartec USA, LLC