Tire Pressure Monitoring System (TPMS) Sensor Training

TIRE PRESSURE MONITORING SYSTEM (TPMS) SENSOR TRAINING

NOTE:If the vehicle has been stationary for more than 30 minutes, the sensors will go into a "sleep mode" to conserve battery power. It will be necessary to wake them up so they will transmit the latest tire pressure information to the smart junction box (SJB). See Tire Pressure Monitoring System (TPMS) Sensor Activation.
NOTE:The tire pressure sensor training procedure must be done on a single vehicle, in an area without radio frequency noise and at least 1 meter (3 feet) away from other vehicles equipped with a TPMS. Radio frequency noise is generated by electrical motor and appliance operation, cellular telephones and remote transmitters, power inverters and portable entertainment equipment.
NOTE:If a sensor does not respond to the special tool, attempt to activate the same sensor with the special tool. If the sensor still does not respond, move the vehicle to rotate the wheels at least 1/4 of a turn and attempt to activate the same sensor again.
NOTE:The smart junction box (SJB) has a 2-minute time limit between sensor responses. If the SJB does not recognize any 1 of the 4 tire pressure sensors during this time limit, the horn will sound twice and the message center (if equipped) will display TIRES NOT TRAINED - REPEAT and the entire procedure must be repeated.
1. Turn the ignition switch to the OFF position, then press and release the brake pedal.

2. Turn the ignition switch from the OFF position to the RUN position 3 times, ending in the RUN position. Do not wait more than one minute between each key cycle.

3. Press and release the brake pedal.

4. Turn the ignition switch to the OFF position.

5. Turn the ignition switch from the OFF position to the RUN position 3 times, ending in the RUN position.

- The horn will sound once and the TPMS indicator will flash if the training mode has been entered successfully. If equipped, the message center will display TRAIN LF TIRE.

6. Place the activation tool on the LF tire sidewall at the valve stem. Press and release the test button on the activation tool. The horn will sound briefly to indicate that the tire pressure sensor has been recognized by the smart junction box (SJB).

NOTE:It may take up to 6 seconds to activate a tire pressure sensor. During this time, the SST AKS-129-3800 must remain in place at the valve stem.






7. Within 2 minutes of the horn sounding, place the activation tool on the RF tire sidewall at the valve stem and release the button to train the RF tire pressure sensor.

8. Repeat Step 7 for the RR and LR tires.

NOTE:The procedure is completed after the last tire has been trained. When the training procedure is complete, the message center (if equipped) will display "TIRE TRAINING COMPLETE". For vehicles not equipped with a message center, successful completion of the training procedure will be verified by turning the ignition switch to the OFF position without the horn sounding. If the horn sounds when the switch is turned to the OFF position, the training procedure was not successful.
NOTE:Do not wait more than 2 minutes between training each sensor or the SJB will time out and the entire procedure must be repeated.
9. Using the scan tool, locate the updated TPMS sensor identifiers trained to the SJB and document them on the applicable warranty claim.

10. If the sensors are being trained due to the installation of a new SJB, clear any DTCs and carry out the SJB On-Demand Self-Test.

NOTE:This step is required to clear DTC C2780, causing the SJB to exit the manufacturing mode and to make sure there are no other concerns with a newly programmed SJB.