The tire pressure management system’s (TPMS) primary function is to make the driver aware of the state of the tire pressure within the tires.
What the Dashboard Light Indicates
The TPMS warning light will illuminate when a tire is low and should eventually go out after a tire has been inflated to its recommended pressure according to the vehicle’s door placard. After starting a vehicle, a TPMS icon will turn on for a few seconds; however, if it stays on, it indicates that one or more of the vehicle’s tires are at least 25% below the recommended pressure. If the light flashes for approximately one or two minutes, it indicates that there is a malfunction in the TPMS system.
Replacing TPMS Sensors
Vehicles with direct-type TPMS systems are equipped with TPMS sensors. If a TPMS sensor is not working, it must be replaced before a re-learn procedure can be performed. The damaged TPMS sensor can be replaced with an OEM sensor or an aftermarket sensor.