You would need to retrieve the trouble code to help determine the problem. This can not be read by the typical OBD II code reader used by many parts stores, but a scantool capable of accessing the codes of the TPMS system. The TPMS sensors usually have a life of around 6 to 8 years, so it's very possible you have a TPMS sensor with a weak or dead battery; the battery is not serviceable, requiring replacement of the sensor.
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