Tire Monitoring System: Service Precautions

TIRE PRESSURE MONITORING SYSTEM (TPMS) SERVICE PRECAUTIONS
^ Do not use an aerosol puncture-repair spray. Such a spray could damage the tire pressure sensor (TPMS transmitter).
^ Whenever the TPMS transmitters and/or TPMS receiver are replaced with new ones, the tire pressure sensor IDs must be registered into the TPMS receiver.
^ The use of non-genuine wheels may cause the improper installation of the TPMS transmitters, possibly resulting in air leakage and damage to the TPMS transmitter.
^ When the tire is removed from the wheel, a special procedure must be observed to avoid the TPMS transmitter damage.
^ The grommet at base of valve stem should be replaced with a new one every five years or when the tire is replaced. For the replacement procedure, refer to "TPMS transmitter Removal and Installation".
^ After the TPMS transmitter is replaced and the tires are inflated, retighten the valve nut (TPMS transmitter mounting nut) to the specified torque, refer to "TPMS transmitter Removal and Installation".
^ Replace the TPMS transmitter when the TPMS transmitter battery is discharged. The battery cannot be removed from the TPMS transmitter. Nominal service life of the battery is 10 years or 160,000 km (100,000 miles).
^ If the valve core and valve cap are replaced, use a genuine replacement part. The valve core is similar to a conventional one, but nickel plating was applied to avoid electric corrosion.
^ TPMS may not work normally in the following circumstances:
^ A wireless facility or device using the same frequency with the TPMS transmitter is near the vehicle.
^ Snow or ice is stuck inside the fenders and/or on the wheels.
^ The TPMS transmitter's battery is discharged.
^ Wheels other than Mitsubishi genuine wheels are being used.
^ Wheels that are not fitted with TPMS transmitters are being used.
^ Wheels whose tire pressure sensor IDs are not registered by the vehicle are being used.

NOTE: Tire inflation pressures vary with the ambient temperature. If the vehicle is subjected to large variations in ambient temperature, the tire inflation pressures may be under-inflated (causing the TPMS warning light to come on) when the ambient temperature is relatively low. If the TPMS warning light comes on, adjust the tire inflation pressure.

NOTE: If any of the road wheel tires do not contain a TPMS transmitter, and the customer continues driving, the TPMS warning light will flash for about 1 minute and then remain illuminated.