Ford SUPER DUTY 2015 Owner's Manual page 82

Low Fuel Level
Illuminates when the fuel level
is low or the fuel tank is nearly
empty. Refuel as soon as
possible.
Low Tire Pressure Warning
Illuminates when your tire
pressure is low. If the lamp
remains on with the engine
running or when driving, check
your tire pressure as soon as possible.
It will also illuminate momentarily when
you switch the ignition on to confirm the
lamp is functional. If it does not illuminate
when you switch the ignition on, or begins
to flash at any time, have the system
checked by your authorized dealer.
Powertrain Malfunction/Reduced
Power/Electronic Throttle Control
Illuminates when a powertrain
or an AWD fault has been
detected. Contact your
authorized dealer as soon as possible.
Service Engine Soon
If the service engine soon
indicator light stays illuminated
after the engine is started, it
indicates that the On-Board Diagnostics
(OBD-II) system has detected a
malfunction of the vehicle emissions
control system. Refer to On-Board
Diagnostics (OBD-II) in the Fuel and
Refueling chapter for more information
about having your vehicle serviced. See
Emission Control System (page 141).
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Instrument Cluster
If the light is blinking, engine misfire is
occurring which could damage your
catalytic converter. Drive in a moderate
fashion (avoid heavy acceleration and
deceleration) and have your vehicle
serviced immediately.
Note: Under engine misfire conditions,
excessive exhaust temperatures could
damage the catalytic converter or other
vehicle components.
The service engine soon indicator light
illuminates when the ignition is first turned
on prior to engine start to check the bulb
and to indicate whether the vehicle is ready
for Inspection/Maintenance (I/M) testing.
Normally, the service engine soon light will
stay on until the engine is cranked, then
turn itself off if no malfunctions are
present. However, if after 15 seconds the
service engine soon light blinks eight times,
it means that the vehicle is not ready for
I/M testing. See Emission Control
System (page 141).
Stability Control
E138639
switch the ignition on, this indicates a
malfunction. During a malfunction the
system will switch off. Have the system
checked by your authorized dealer
immediately. See Using Stability
Control (page 167).
Stability Control Off
or when you switch the ignition off. See
Using Stability Control (page 167).
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Illuminates when the system is
active. If it remains illuminated
or does not illuminate when you
Illuminates when you switch the
system off. It will go out when
you switch the system back on