What does it mean to Relearn a TPMS Sensor? When Does it Need to be Done? And How Do I Do It?

Each wheel’s TPMS sensor has a unique ID. That sensor ID and associated wheel is registered in the vehicle’s TPMS module.  When a sensor is replaced or when the tires are rotated, the new sensor ID or the new sensor ID for that wheel location on the vehicle, needs to be registered or relearned to the vehicle’s TPMS module.