Turn Signal On Warning

The radio activates the turn signal click-clack audible warning as requested by the body control module (BCM). When the turn signal is ON the BCM requests the radio to turn ON the click-clack audible warning. The BCM sends a serial data message to the radio indicating the sound and duration of the warning. The turn signal on chime warning also 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 serial data message from the engine control module (ECM) indicating the vehicle speed.