Seat Belt Reminder Lamp: Description and Operation

FASTEN SAFETY BELT INDICATOR
The instrument panel cluster (IPC) illuminates the fasten safety belt indicator when the following occurs:

- The body control module (BCM) detects that the driver's seat belt is unbuckled. The IPC receives a class 2 message from the BCM requesting illumination. The IPC illuminates the indicator for 20 seconds and then flashes the indicator for 55 seconds. The IPC sends a class 2 message to the BCM indicating the indicator is illuminated. The BCM sends a class 2 message to the radio in order to activate an audible warning.

- The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds.

- The IPC detects a loss of class 2 communications with the BCM.