FORD 2015 F-550 v.1 - Manual (Page 81)

WARNING
Driving your vehicle with the warning
lamp on is dangerous. A significant
decrease in braking performance
may occur. It will take you longer to stop
your vehicle. Have your vehicle checked by
your authorized dealer immediately. Driving
extended distances with the parking brake
engaged can cause brake failure and the
risk of personal injury.
Check Fuel Cap
(If Equipped)
Illuminates when the fuel cap
may not be properly installed.
Continued driving with this light
on may cause the Service engine
soon warning indicator to come on.
Cruise Control
(If Equipped)
E71340
Illuminates when you switch this
feature on. See Using Cruise
Control (page 176).
Direction Indicator
Illuminates when the left or right
turn signal or the hazard warning
flasher is turned 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
E163170
Illuminates when using the
electronic locking differential.
Engine Coolant Temperature
Illuminates when the engine
coolant temperature is high.
Stop the vehicle as soon as
possible, switch off the engine and let cool.
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. See Engine Oil Check
(page 235).
Note: Do not resume your journey if it
illuminates despite the level being correct.
Have the system checked by your authorized
dealer immediately.
Fasten Safety Belt
It will illuminate and a chime will
sound to remind you to fasten
your safety belt.
Front Airbag
If it fails to illuminate when you
start your vehicle, continues to
flash or remains on, it indicates
a malfunction. Have the system checked
by your authorized dealer.
High Beam
Illuminates when you switch the
high beam headlamps on. It will
flash when you use the
headlamp flasher.
Hill Descent
(If Equipped)
E163171
Illuminates when hill descent is
switched on.
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Super Duty (), enUSA
Instrument Cluster