Turn Signal On Warning

The radio activates the turn signal on audible warning as requested by the Body Control Module (BCM). The BCM sends a class 2 message to the radio indicating the chime frequency (single chime in phase with turn signal indicator) and duration (continuous). The turn signal on warning sounds when the following occurs:
^ The ignition is ON.
^ The BCM detects that the turn signal is active for greater than 1.2 km (0.75 mi). The BCM calculates the distance based on a class 2 message from the PCM indicating the vehicle speed.