TPMS Warning Indicator

The IPC receives the tire pressure warning indicator request from the GWM over the High Speed Controller Area Network 3 (HS3-CAN). The GWM receives the tire pressure warning indicator request from the BCM over the High Speed Controller Area Network 1 (HS1-CAN).

If the BCM determines the tire pressure has exceeded the low tire pressure limits, the tire pressure warning indicator request message is sent to the IPC to illuminate the TPMS warning indicator.

If a TPMS monitor or sensor fault condition exists, the BCM sends the tire pressure warning indicator request message to the IPC to flash the TPMS warning indicator. The IPC flashes the TPMS warning indicator for 75 seconds then turns the indicator on solid.