Tire Monitor System - Electromagnetic Interference

Group: CHASSIS

Number: 07-50-004

Date: MARCH, 2007

Model:
ALL MODELS RELEASED WITH THE TPMS

Subject:
TPMS (TIRE PRESSURE MONITORING SYSTEM) WARNING LAMP - ELECTROMAGNETIC INTERFERENCE

DESCRIPTION:

This bulletin provides information regarding electromagnetic interference with the Tire Pressure Monitoring System (TPMS).

The TPMS malfunction indicator lamp may be illuminated if the vehicle is moving around electric power supply cables or radio transmitters at police stations, government and public offices, broadcasting stations, military installations, airports, transmitting towers, etc. The TPMS malfunction indicator lamp generally turns off after the vehicle is removed from such interferences.

DIAGNOSIS:

If the TPMS indicator lamp is ON, and all four wheel sensors are checked and are working correctly, external electronic devices connected to the vehicle's power outlets (notebook computer, seat warmer, massager, coolers, etc.) may be the cause of this condition.

ACTION:

Please request the customer to not operate external electronic devices that cause this condition.