2020 FORD F-550 ignition

WARNING LAMPS AND
INDICATORS
The following warning lamps and
indicators alert you to a vehicle condition
that may become serious. Some lamps
illuminate when you start your vehicle to
make sure they work. If any lamps remain
on after starting your vehicle, refer to the
respective system warning lamp for further
information.
Note:
Some warning indicators appear in
the information display and operate the
same as a warning lamp but do not
illuminate when you start your vehicle.
Adaptive Cruise Control (If Equipped) The speed control system
indicator light changes color to
indicate what mode the system
is in. See Using Adaptive Cruise Control
(page
237).
On (white light): Illuminates when the
adaptive cruise control system is turned
on. Turns off when the speed control
system is turned off.
Engaged (green light): Illuminates when
the adaptive cruise control system is
engaged. Turns off when the speed control
system is disengaged.
Adaptive Steering
(If Equipped) The adaptive steering system
indicator illuminates if the
system detects a fault during the
continuous diagnostic checks. Adaptive Steering Initialization (yellow,
flashing): The adaptive steering system
has detected a difference between
steering wheel angle and the desired road
wheel angle. The steering wheel adjusts
itself to correct this difference. This
adjustment is part of normal system
operation.
Adaptive Steering Off (yellow, solid): The
adaptive steering system is off. It is
possible that the steering wheel may not
be straight when your vehicle is driving
straight ahead. If this message persists,
have your vehicle checked as soon as
possible.
Adaptive Steering Loss (red, solid): The
adaptive steering system integrity cannot
be verified. Do not drive your vehicle and
have the system checked immediately.
See
Steering (page 256).
Anti-Lock Braking System Illuminates momentarily when
you switch on the ignition to
confirm that the lamp is
functional. If it does not illuminate when
you switch on the ignition or begins to flash
at anytime, have the system checked as
soon as possible.
If it illuminates when you are driving, this
indicates a malfunction. You will continue
to have the normal braking system
(without ABS) unless the brake system
warning lamp also illuminates. Have the
system checked as soon as possible.
Automatic High Beam
(If Equipped) Illuminates when this feature is
on. See
What Is Automatic
High Beam Control (page 92).
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Battery
If it illuminates while driving, it
indicates a malfunction. Switch
off all unnecessary electrical
equipment and have the system checked
immediately.
Brake System Warning Lamp WARNING: Driving your vehicle
with the warning lamp on is dangerous.
A significant decrease in braking
performance may occur. It may take you
longer to stop your vehicle. Have your
vehicle checked as soon as possible.
Driving extended distances with the
parking brake engaged can cause brake
failure and the risk of personal injury.
This lamp is a dual function lamp and
illuminates when:
• You apply the parking brake with the
ignition on.
• Your vehicle has a brake fault or low
brake fluid level, regardless of parking
brake position. If the lamp illuminates while you
are moving, you may have the
parking brake applied. Be sure
that the parking brake is off.
Have your vehicle checked as
soon as possible if the lamp
continues to illuminate.
Note: Indicators vary depending on region.
Blind Spot Monitor
(If Equipped) Illuminates when you switch this
feature off or in conjunction with
a message. See
Blind Spot
Information System (page 248). 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.
Check 4X4
(If Equipped) Illuminates with a message
when a four-wheel drive fault is
present. See Using Four-Wheel
Drive
(page 207).
Cruise Control
(If Equipped) Illuminates when you switch this
feature on. See What Is Cruise
Control
(page 236).
Diesel Engine Brake
(If Equipped) Illuminates when you switch the
manual engine brake on. See
General Information
(page
217). Illuminates when you switch the
automatic engine brake on. See
General Information
(page
217).
Diesel Exhaust Fluid
(If Equipped) With the key in the on position,
illuminates when the DEF is
contaminated, low or someone
has tampered with the DEF system. See
Selective Catalytic Reductant System
(page
191).
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Direction Indicator
Illuminates when you switch on
the left or right direction
indicator or the hazard warning
flasher. 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 (If
Equipped) Illuminates when using the
electronic locking differential.
Engine Coolant Temperature Illuminates when the engine
coolant temperature is high.
Stop your vehicle as soon as
possible, switch off the engine and let it
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 341).
Note: Do not resume your journey if it
illuminates despite the level being correct.
Have the system checked immediately.
Fasten Seatbelt Illuminates and a tone sounds
to remind you to fasten your
seatbelt. 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
as soon as possible.
Front Fog Lamps
(If Equipped) Illuminates when you switch the
front fog lamps on.
High Beam Illuminates when you switch the
high beam headlamps on. It
flashes when you use the
headlamp flasher.
Hill Descent
(If Equipped) Illuminates when hill descent is
switched on.
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 the tire
pressure in one or more tires is
below the correct tire pressure.
It also illuminates 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
as soon as possible.
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Powertrain Malfunction/Reduced
Power/Electronic Throttle Control
Illuminates when a powertrain
or a 4WD fault has been
detected. Have your vehicle
checked as soon as possible.
Service Engine Soon Illuminates when you switch the
ignition on prior to engine start
to check the bulb and to indicate
whether your vehicle is ready for Inspection
and Maintenance (I/M) testing.
Normally, it illuminates until the engine is
cranked and automatically turns off if no
malfunctions are present. However, if after
15 seconds it flashes eight times, this
indicates that your vehicle is not ready for
Inspection and Maintenance (I/M) testing.
See Emission Law (page 188).
If it illuminates when the engine is running
this indicates a malfunction. The On Board
Diagnostics system has detected a
malfunction of the vehicle emission control
system.
If it flashes, engine misfire may be
occurring. Increased exhaust gas
temperatures could damage the catalytic
converter or other vehicle components.
Drive in a moderate fashion, avoid heavy
acceleration and deceleration, and have
your vehicle checked immediately.
Stability Control Illuminates when the system is
active. If it remains illuminated
or does not illuminate when you
switch the ignition on, this indicates a
malfunction. During a malfunction, the
system switches off. Have the system
checked immediately. See
Using
Stability Control (page 223). Stability Control Off Illuminates when you switch the
system off. It goes out when you
switch the system back on or
when you switch the ignition off.
See Using Stability Control (page 223).
Tailgate Ajar Illuminates when the tailgate is
not completely closed or when
opened and then closed when
the transmission is in any gear other than
park (P).
Transmission Tow/Haul
(If Equipped) Illuminates when the tow/haul
feature is activated. If the light
flashes steadily, have the system
checked immediately as damage to the
transmission could occur.
Wait To Start
(If Equipped) Illuminates when you switch the
ignition on as part of the
pre-start system. Wait until the
wait to start indicator turns off before
attempting to start your vehicle. See
Starting a Diesel Engine
(page 171).
Water In Fuel
(If Equipped) WARNING:
Do not drain the
water-in-fuel separator while the engine
is running. Failure to follow this warning
may result in fire, serious injury, death or
property damage.
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During refueling, it is possible for
you to pump
water-contaminated diesel fuel
into your fuel tank. Your vehicle ’s fuel
system is equipped with a fuel filter and
water separator to remove water from the
fuel. The water in fuel indicator illuminates
when the fuel and water separator has a
significant quantity of water in it and
requires immediate draining.
If the water in fuel indicator illuminates
when the engine is running, stop your
vehicle as soon as safely possible, shut off
the engine, then drain the fuel and water
separator. See Fuel Quality (page 179).
Allowing water to stay in the fuel system,
after the water in fuel indicator illuminates,
could result in extensive damage or failure
of the fuel injection system.
Note: Do not drain the fuel and water
separator while the engine is running. Air will
enter into the fuel system causing the engine
not to operate properly.
Four-Wheel Drive Indicators
(If
Equipped)
4X2 HIGH Illuminates momentarily when
two-wheel drive high is engaged.
4X4 HIGH Illuminates when four-wheel
drive high is engaged.
4X4 LOW Illuminates when four-wheel
drive low is engaged. AUDIBLE WARNINGS AND
INDICATORS
Key in Ignition Warning Chime
Sounds when you open the driver's door
and you have left the key in the ignition.
Keyless Warning Alert
(If Equipped)
Sounds the horn twice when you exit your
vehicle with the intelligent access key, after
the last door is closed and your keyless
vehicle is in RUN, indicating your vehicle is
still on.
Headlamps On Warning Chime
Sounds when you remove the key from the
ignition and open the driver's door and you
have left the headlamps or parking lamps
on.
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 an authorized dealer
immediately.
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Battery and Charging System
Action
Message
The charging system needs servicing. If the warning stays on
or continues to come on, contact an authorized dealer as soon as possible.
Check Charging System
The battery management system detects an extended low-voltage condition. Your vehicle disables various features to
help preserve the battery. Turn off as many of the electrical loads as soon as possible to improve system voltage. If the
system voltage has recovered, the disabled features operate again as normal.
Low Battery Features
Temporarily Turned Off
The battery management system determines that the batteryis at a low state of charge. Turn your ignition off as soon as
possible to protect the battery. This message clears once you restart your vehicle and the battery state of charge has
recovered. Turning off unnecessary electrical loads allows faster battery state-of-charge recovery.
Turn Power Off To Save
Battery
Blind Spot Information and Cross Traffic Alert System Action
Message
A fault with the system has occurred. Contact an authorizeddealer as soon as possible.
Blindspot System Fault
The system sensors are blocked. See Blind Spot InformationSystem (page 248).
Blindspot Not Available
Sensor Blocked See Manual
The system detects a vehicle. See
Blind Spot Information
System (page 248).
Vehicle Coming From X
The blind spot information system and cross traffic alert
system sensors are blocked. See
Blind Spot Information
System (page 248).
Cross Traffic Not Avail-
able Sensor Blocked See Manual
A fault with the system has occurred. Contact an authorizeddealer as soon as possible.
Cross Traffic System
Fault
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Fuel
Action
Message
An early reminder of a low fuel condition.
Fuel Level Low
The fuel fill inlet could not be properly closed.
Check Fuel Fill Inlet
Keys and Remote Controls Action
Message
A reminder to press the brake while starting the vehicle.
To START Press Brake
The system does not detect a key in your vehicle. See KeylessStarting (page 169).
No Key Detected
You pressed the StartStop button to switch off the engine
and your vehicle does not detect your intelligent access key inside your vehicle.
Restart Now or Key is
Needed
Your vehicle is in the run ignition state.
Full Accessory Power
Active
There is a problem with your vehicle ’s starting system. See
an authorized dealer for service.
Starting System Fault
You have successfully programmed an intelligent access keyto the system.
Key Program Successful
You have failed to program an intelligent access key to thesystem.
Key Program Failure
You have programmed the maximum number of keys to the system.
Max Number of Keys
Learned
You have not programmed enough keys to the system.
Not Enough Keys
Learned
Informs you that you are exiting your vehicle and the engine is on.
Engine ON
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Action
Message
Displays when you must switch off the trailer backupassist to use trail control.
Trail Control Not Available
While Pro Trailer Backup Assist™ Active
Displays when the system detects that you could bestuck in sand and turns trail control on to the lowest set speed.
Set Trail Control to 1 MPH to Aid
in Getting Unstuck in Sand
Set Trail Control to 2 km/h to
Aid in Getting Unstuck in Sand
Trailer Action
Message
The current gain setting for the trailer brake.
Trailer Brake Gain: {trailer gain
value:#0.0}
The current gain setting for the trailer brake when youdo not have a trailer connected.
Trailer Brake Gain: {trailer gain
value:#0.0} No Trailer
Faults sensed in the Integrated Trailer Brake ControlModule followed by a single chime. See Towing a
Trailer (page 272).
Trailer Brake Module Fault
The system detects a correct trailer connection duringa given ignition cycle.
Trailer Connected
The system senses a trailer connection becomes
disconnected, either intentionally or unintentionally, during a given ignition cycle.
Trailer Disconnected
The trailer sway control has detected trailer sway.
Trailer Sway Reduce Speed
There are certain faults in your vehicle wiring and trailer
wiring/brake system. See Towing a Trailer (page 272).
Trailer Wiring Fault
There is a fault with your trailer turn lamp. Check yourlamp.
Trailer Left Turn Lamps Fault
Check Lamps
There is a fault with your trailer turn lamp. Check yourlamp.
Trailer Right Turn Lamps Fault
Check Lamps
There is a fault with your trailer battery. See
Towing
a Trailer (page 272).
Trailer Battery Not Charging See
Manual
There is a fault with your vehicle trailer lighting module.See
Towing a Trailer (page 272).
Trailer Lighting Module Fault
See Manual
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