Ford F-150 Owner's Manual page 106

106
Charging System
It will illuminate when the 12–volt battery is not charging properly.
Contact your authorized dealer as soon as possible. This indicates
a problem with the electrical system or a related component.
Check 4X4
Displays with the message CHECK 4X4 when a four-wheel drive
fault is present. Refer to the Information Displays chapter for
more information.
Cruise Control (if equipped)
It will illuminate when you switch this feature on.
Direction Indicator
Illuminates when the left or right turn signal or the hazard
warning flasher is switched on. If the indicators stay on or flash
faster, check for a burned out bulb.
Door Ajar
Displays when the ignition is on and any door is not completely
closed.
Electronic Locking Differential
Displays when using the electronic locking differential.
Engine Oil
If it illuminates with the engine running or when you are
driving, this indicates a malfunction. Stop your vehicle as soon
as it is safe to do so and switch the engine off. Check the
engine oil level.
Note: Do not resume your journey if it illuminates despite the level
being correct. Have the system checked by your authorized dealer.
2013 F-150 (f12)
Owners Guide gf, 1st Printing
USA (fus)
Instrument Cluster