Tire Pressure Sensor

Each sensor is an integrated unit made up of the tire valve stem, a pressure sensor, and a transmitter. The unit is attached to the inside of the wheel, around the valve stem. The sensor transmits internal tire information onetime per 60 seconds to the TPMS control unit. When the TPMS control unit receives a tire pressure reading of less than: With 17 inch and 18 inch wheels 175 kPa (1.8 kgf/cm² , 25 psi), or with 19 inch wheels 186 kPa (1.9 kgf/cm² , 27 psi), the TPMS control unit then turns on the low tire pressure indicator and the appropriate tire(s) indicator. When that tire's pressure is increased to more than: With 17 inch and 18 inch wheels 200 kPa (2.0 kgf/cm² , 29 psi), or with 19 inch wheels 215 kPa (2.2 kgf/cm² , 31 psi), the transmitter sends the tire pressure reading to the TPMS control unit, and the TPMS control unit turns the indicators off.