A TPMS relearn procedure is required any time a new sensor ID is introduced to the vehicle or when the tires are rotated. The vehicle's ECU records the four sensor IDs (or five when the spare tire is included) so that the unique IDs installed on the vehicle are correctly recognized by the vehicle's ECU.
The relearning-by-location function also allows for the ECU to clear any related codes and display the correct wheel location of each tire.
Using a properly formatted scan tool, follow the process to allow for the relearn of sensor IDs to the vehicle's ECU. The tool will wake up or "ping" each sensor, one at a time, and store the sensor's individual IDs.
It’s important to note that this relearn procedure is a standard TPMS service step. Every TPMS sensor has to follow a relearn procedure as prescribed by the OE company after a sensor is replaced.
This is true whether it is a genuine OE replacement sensor or an aftermarket one. Not only will this help to determine that the new sensor is working perfectly, it also will ensure the complete TPMS system is functioning well. In most cases, a TPMS scan tool is required for this process