Headlamps On Warning Chime
WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The headlamps on warning chime warns that the headlamps are on when the driver door is ajar and the key is removed from the ignition lock cylinder (without IA ) or when the ignition is OFF (With Intelligent Access). The IPC receives the headlamps on warning chime command from the BCM . The headlamps on warning chime sounds if the driver door is ajar, the headlamp switch is in the PARK or HEADLAMP position, and the ignition is OFF (key out without IA ).
The chime sounds a repetitive 1.6 second chime tone for as long as the headlamps are on and the IPC receives the chime on command. The chime shuts off when battery saver has expired (approximately 30 minutes).