TPMS Warning Light Illuminates (Direct Tire Pressure Monitoring System (TPMS)): Notes

CAUTION:

The tire pressure cannot be measured accurately after driving for a long period due to the internal temperature and pressure. Stop the vehicle for approx. 1 hour and then perform the tire pressure measurement and adjustment.
Use a high accuracy digital gauge for measurement of the tire pressure.

NOTE:

The tire pressure normally decreases by approx. 7 kPa {0.07 kgf/cm² , 1.02 psi} per month even if the tire is normal.
If the DTC clearing procedure is implemented, the TPMS warning light turns off.
The snapshot (temperature and pressure) stored when the TPMS warning light is turned on and off can be verified by operating the M-MDS.

TPMS WARNING LIGHT ILLUMINATES (DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS)) DETECTION CONDITION AND POSSIBLE CAUSE

Troubleshooting item	TPMS warning light illuminates
Description	TPMS warning light illuminates continuously TPMS warning light (low pressure warning) illuminates after engine start and turns off after driving for a period of time
Possible cause	Tire pressure is lower than the specification. (Such as loss of air pressure due to puncture.) TPMS warning light circuit malfunction in the instrument cluster. The tire pressure decreases (approaches value to illuminate TPMS warning light) when the internal temperature of the tire is low.