TPMS Warning Indicator
TPMS Warning Indicator
The TPMS warning indicator is used to indicate both a vehicle low tire pressure event and a possible vehicle TPMS fault condition. The message center displays additional information associated with the low tire pressure event or the system fault condition. Occasionally, the warning indicator and message center indicate faults the customer cannot resolve. Treat these as serviceable TPMS faults.
The trailer TPMS does not use the TPMS warning indicator to notify the vehicle occupants of low trailer tire pressures or trailer TPMS fault conditions. The trailer TPMS uses only the message center for low tire pressure and fault notifications.
TPMS Warning Indicator Illuminates Continuously
The TPMS warning indicator remains on continuously and the message center displays LOW TIRE PRESSURE when any of the vehicle tire pressures fall below the low pressure limit. When this condition exists, adjust the tire pressure to the recommended cold tire pressure indicated on the VC label.
TPMS Warning Indicator Flashes
The TPMS warning indicator flashes for 70 seconds and then remains on continuously when the ignition is set to ON and the vehicle TPMS is malfunctioning. The TPMS status (TPMS_STATUS) PID can be used to determine why the TPMS warning indicator is flashing.
- Tire Pressure Sensor Fault -- The message center displays TIRE PRESSURE SENSOR FAULT when a TPMS sensor is malfunctioning.
- No communication with the BCM -- The TPMS warning indicator illuminates when the IPC has not received any signals from the BCM for more than 5 seconds. The message center displays TIRE PRESSURE MONITOR FAULT.
- Tire Pressure Monitor Fault -- The message center displays TIRE PRESSURE MONITOR FAULT when the TPMS is malfunctioning.