FORD 2013 F-550 v.1 - Manual (Page 102)

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.
Diesel Warning Lights: If your vehicle is equipped with a diesel engine,
it has some unique warning lights; refer to the Instrument Cluster in
your diesel supplement for detailed information on their function.
• Glow plug pre-heat
• Water in fuel
• Diesel exhaust fluid
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.
Keyless Warning Alert (If Equipped)
Sounds when the keyless vehicle is in RUN 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.
Instrument Cluster 101
2013 F-250/350/450/550 (f23)
Owners Guide gf, 1st Printing
USA (fus)