FORD F750 2012 12.G Owner's Manual

when you start your vehicle to make sure the bulb works. If any light
remains on after starting the vehicle, refer to the respective system
warning light for additional information.
Note:Some warning lights are
reconfigurable telltale (RTT)
indicator lights and illuminate in the
message center. These lights
function the same as the other
warning lights.
Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately by your
authorized dealer. Normal braking is still functional unless the brake
warning light is also illuminated.
Brake system warning light:To
confirm the brake system warning
light is functional, it momentarily
illuminates when the ignition is
turned to the on position when the
engine is not running, or in a
position between on and start, or by
applying the parking brake when the
ignition is turned to the on position.
If the brake system warning light does not illuminate at this time, seek
service immediately from your authorized dealer. Illumination after
releasing the parking brake indicates low brake fluid level and the brake
system should be inspected immediately by your authorized dealer.
WARNING:Driving a vehicle with the brake system warning
light on is dangerous. A significant decrease in braking
performance may occur. It takes you longer to stop the vehicle. Have
the vehicle checked by your authorized dealer. Driving extended
distances with the parking brake engaged can cause brake failure and
the risk of personal injury.
ABS
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Charging system:Illuminates when
the battery is not charging properly.
If it stays on while the engine is
running, there may be a malfunction
with the charging system or a related component. Contact your
authorized dealer as soon as possible.
Check fuel cap (gasoline engine
only):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 illuminate.
Check suspension (if equipped):
Illuminates when the air suspension
dump switch has been activated.
Check trans (Allison automatic
transmission only):Illuminates
while driving if a problem has been
detected and shifting may be
restricted. Depending upon the
severity of the problem, the
read-out digit on the shifter display
may be blank.
On MD 3000 series transmissions,operation may continue in order to
reach service assistance. The ECU may not respond to shift selector
requests, since operating limitations are being placed on the
transmission, i.e. upshifts and downshifts may be restricted. Direction
changes do not occur.
Refer to your transmission operator’s manual for more information.
Diesel exhaust fluid (diesel
engine only):Illuminates when the
diesel exhaust fluid level falls below
0.5 gallon (1.9L) in the 5 gallon
(19.0L) tank or 1 gallon (3.8L) in
the 9 gallon (34.0L) tank. Refill the
tank or, at a minimum, add at least
1 gallon (3.8L) to the 5 gallon
(19.0L) tank or 2 gallons (7.6L) to the 9 gallon (34.0L) tank.
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Diesel particulate filter (diesel
engine only):Illuminates when the
soot level in the DPF has reached a
point where it requires operator
assistance. Refer toDiesel
particulate filterin the
Maintenance and Specifications
chapter and your engine operator’s
manual, for more details.
Do not shift (Allison automatic
transmission only):Illuminates
while driving if a problem has been
detected and shifting may be
restricted. Depending upon the
severity of the problem, the
read-out digit on the shifter display
may be blank. Operation may
continue in order to reach service assistance. The ECU may not respond
to shift selector requests, since operating limitations are being placed on
the transmission, i.e. upshifts and downshifts may be restricted.
Direction changes do not occur.
Refer to your transmission operator’s manual for more information.
Electronic locking differential
(if equipped):Displays when using
the electronic locking differential.
Engine oil pressure (gasoline
engine only):Illuminates when
engine oil pressure is low.
High beams:Illuminates when the
high-beam headlamps are turned on.
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Low fuel (RTT) (gasoline engine
only):Illuminates when the fuel
level in the fuel tank is at, or near,
empty.
Parking brake warning:
Momentarily illuminates when the
ignition is turned to the on position
and the engine is off. Also
illuminates when the parking brake
is engaged. If the parking brake
warning lamp does not illuminate at
these times, seek service
immediately.
Vehicles equipped with the Power Park Parking Brake option:If
after setting the parking brake on your vehicle the park brake warning
lamp begins to blink, this may indicate a failure in the parking brake
system. Seek service from your dealer immediately.
Powertrain malfunction/Reduced
power/Electronic throttle
control (RTT) (gasoline engine
only):Illuminates when the engine
has defaulted to a “limp-home” operation or when a transmission
problem has been detected and shifting may be restricted. If the light
remains on, have the system serviced immediately by your authorized
dealer.
Safety belt:Illuminates to remind
you to fasten your safety belt. A
Belt-Minderchime also sounds to
remind you to fasten your safety
belt. Refer to theSeating and
Safety Restraintschapter to activate/deactivate the Belt-Minderchime
feature.
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Service engine soon:Illuminates
when the ignition is first turned to
the on position to check the bulb
and to indicate whether the vehicle
is ready for Inspection/Maintenance
(I/M) testing.
Solid illumination after the engine is
started indicates the on-board
diagnostics system (OBD-II) has detected a malfunction.
WARNING:Under engine misfire conditions, excessive exhaust
temperatures could damage the catalytic converter, the fuel
system, interior floor coverings or other vehicle components, possibly
causing a fire.
Speed control (if equipped):
Illuminates when the speed control
system is engaged. Turns off when
the speed control system is
disengaged.
Stop engine (diesel engine only):
This red lamp illuminates when the
engine needs to be stopped (as soon
as it can be safely done). If the lamp
begins flashing, automatic engine shutdown may take place in as little as
20 seconds.
WARNING:In the event of engine shutdown, make sure the
vehicle is safely off the road and the problem is remedied prior
to returning to the road. Failure to remove the vehicle from the road
could result in an accident, causing serious injury or death.
If the engine shuts down, it can be restarted and operated for
30 seconds at a time or until the problem is corrected. For more
information, refer toEngine automatic shutdown warning light or
chimein theDrivingchapter of this owner guide and/or your engine
operator’s manual.
Refer to your engine operator’s manual for specific information regarding
this feature. Drivers of electronically-controlled engines should know the
extent of warning engine shutdown system before operating the vehicle.
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Traction control (if equipped)
(diesel engine only):Illuminates
and flashes slowly if the Off Road or
Mud/Snow mode is selected.
Illuminates and flashes rapidly
during a traction control event.
Traction control (if equipped)
(gasoline engine only):
Illuminates when the traction
control is active. If the light remains
on, have the system serviced
immediately, refer to theDrivingchapter for more information.
Trailer anti-lock brake system
(ABS):Illuminates briefly when the
engine is powered-up and only when
a PLC trailer or a PLC diagnostic
tool is connected. If the light
remains on after the vehicle is
started, continues to flash or fails to
illuminate, have the system serviced
immediately.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
Wait to start (diesel engine
only):Illuminates when the air
intake heater is in operation and
special starting procedures are
required. Refer toStartingin theDrivingchapter.
WARNING:If equipped with an air intake heater, DO NOT use
ether or any other starting fluids. The use of starting fluids
(ether) in an engine equipped with an air intake heater could result in
damage and/or personal injury.
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Water in fuel (diesel engine
only):Illuminates when the fuel
filter/water separator has a
significant quantity of water in it.
If the light illuminates when the engine is running, stop the vehicle as
soon as safely possible, shut off the engine, then drain the fuel
filter/water separator. Refer to your engine operator’s manual for the
drain procedure. Allowing water to stay in the system could result in
extensive damage to, or failure of, the fuel injection system.
WARNING:Do not drain water separator while engine is
running. Fuel may ignite if separator is drained while engine is
running or vehicle is moving.
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.
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.
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GAUGES
Base instrument cluster for diesel engine with standard measure
shown; metric similar
1.Tachometer:Indicates the engine speed in revolutions per minute.
Driving with your tachometer pointer continuously at the top of the scale
may damage the engine.
2.Engine oil pressure gauge:Indicates engine oil pressure. The
needle should stay in the normal operating range (between L and H). If
the needle falls below the normal range, stop the vehicle, turn off the
engine and check the engine oil level. Add oil if needed. If the oil level is
correct, have your vehicle checked at your authorized dealer.
3.Engine coolant temperature gauge:Indicates engine coolant
temperature. At normal operating temperature, the needle is in the
normal range (between H and C).If it enters the red section, the
engine is overheating. Stop the vehicle as soon as safely possible,
switch off the engine and let the engine cool.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
4.Diesel exhaust fluid (DEF) gauge:Indicates fluid level in DEF tank.
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5.Fuel gauge:Indicates approximately how much fuel is left in the fuel
tank (when the ignition is in the on position). The fuel gauge reading
may vary slightly when the vehicle is in motion or on a grade. Refer to
Filling the tankin theMaintenance and Specificationschapter for
more information.
6.Speedometer:Indicates the current vehicle speed.
Odometer and trip odometer:The odometer is displayed on the lower
line in the message center and registers the total accumulated distance
the vehicle has traveled. For trip odometer information, refer toMessage
centerin this chapter.
Base instrument cluster for gasoline engine with standard
measure shown; metric similar
1.Engine oil pressure gauge:Indicates engine oil pressure. The
needle should stay in the normal operating range (between L and H). If
the needle falls below the normal range, stop the vehicle, turn off the
engine and check the engine oil level. Add oil if needed. If the oil level is
correct, have your vehicle checked at your authorized dealer.
2.Engine coolant temperature gauge:Indicates engine coolant
temperature. At normal operating temperature, the needle will be in the
normal range (between H and C).If it enters the red section, the
engine is overheating. Stop the vehicle as soon as safely possible,
switch off the engine and let the engine cool.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
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3.Transmission fluid temperature gauge:If the gauge is in the:
Normal areaThe transmission fluid is within the normal operating
temperature (between H and C).
Yellow areaThe transmission fluid is higher than normal operating
temperature. This can be caused by special operation conditions (i.e.
snowplowing, towing or off road use). Refer toSpecial operating
conditionsin thescheduled maintenance informationfor instructions.
Operating the transmission for extended periods of time with the gauge
in the yellow area may cause internal transmission damage.
Altering the severity of the driving conditions is recommended to lower
the transmission temperature into the normal range.
Red areaThe transmission fluid is overheating. Stop the vehicle to allow
the temperature to return to normal range.
If the gauge is operating in the yellow or red area, stop the vehicle and
verify the airflow is not restricted such as snow or debris blocking airflow
through the grill. If the gauge continues to show high temperatures, see
your authorized dealer.
4.Fuel gauge:Indicates approximately how much fuel is left in the fuel
tank (when the ignition is in the on position). The fuel gauge may vary
slightly when the vehicle is in motion or on a grade. The fuel icon and
arrow indicates which side of the vehicle the fuel filler door is located.
Refer toFilling the tankin theMaintenance and Specifications
chapter for more information.
5.Speedometer:Indicates the current vehicle speed.
6.Tachometer:Indicates the engine speed in revolutions per minute.
Driving with your tachometer pointer continuously at the top of the scale
may damage the engine.
Odometer and trip odometer:The odometer is displayed on the lower
line in the message center and registers the total accumulated distance
the vehicle has traveled. For trip odometer, refer toStandard message
centerorOptional message centerin this chapter.
MESSAGE CENTER
The message center monitors many vehicle systems and alerts you to
potential vehicle problems and various conditions with an informational
message followed by a long indicator chime.
The message center display is located in the instrument cluster and the
controls are located on the instrument panel.
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