Audible Warnings And Indicators - Ford F-150 Owner's Manual

4X2
Illuminates momentarily when two-wheel drive high is selected.
If the light fails to display when the ignition is turned on, or
remains on, have the system serviced immediately by your
authorized dealer.
4X4 LOW
Illuminates when four-wheel drive low is engaged. If the light fails
to display when the ignition is turned on, or remains on, have the
system serviced immediately by your authorized dealer.
4X4 HIGH
Illuminates when four-wheel drive high is engaged. If the light
fails to display when the ignition is turned on, or remains on,
have the system serviced immediately by your authorized dealer.
4X4 AUTO
Displays when using the 4x4 system.

AUDIBLE WARNINGS AND INDICATORS

Key In Ignition Warning Chime
Sounds when the key is left in the ignition in the off or accessory
position and the driver's door is opened.
Headlamps On Warning Chime
Sounds when the headlamps or parking lamps are on, the ignition is off
(the key is not in the ignition) and the driver's door is opened.
Parking Brake On Warning Chime
Sounds when you have left the parking brake on and drive your vehicle.
If the warning chime remains on after you have released the parking
brake, have the system checked by your authorized dealer immediately.
2013 F-150 (f12)
Owners Guide gf, 1st Printing
USA (fus)
Instrument Cluster 109