Turn Signal On

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 at a fast rate frequency and a continuous duration. 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.