2011 FORD F450 cooling

TO EXIT 4X4 LOW SHIFT TO N (if equipped) — Displayed when
2WD is selected while the vehicle has been stopped in 4X4 LOW. For
more information, refer to Four-wheel drive (4WD) operation in the
Driving chapter.
TO EXIT 4X4 LOW APPLY BRAKE (if equipped) — Displayed when
2WD is selected from 4X4 LOW mode. For more information, refer to
Four-wheel drive (4WD) operation in the Driving chapter.
SHIFT DELAYED PULL FORWARD (if equipped) — May display
when shifting to or from 4X4 LOW. For more information, refer to
Four-wheel drive (4WD) operation in the Driving chapter.
HILL DESCENT CONTROL READY (if equipped) — Displayed
when the hill descent control switch is turned on.
HILL DESCENT CONTROL FAULT (if equipped) — Displayed when
a hill descent system fault is present.
HILL CNTRL OFF SYSTEM COOLING (if equipped) — Displayed
when the hill descent system is cooling due to overuse.
HILL DESCENT CONTROL OFF (if equipped) — Displayed when
the hill descent system is deactivated.
FOR HILL CNTRL 20 MPH OR LESS (if equipped) — Displayed
when the vehicle speed requirement for hill control mode entry has not
been met.
DRIVER RESUME CONTROL (if equipped) — Displayed when the
hill control and off-road mode require the driver to resume control.
FOR HILL CNTRL SELECT GEAR (if equipped) — Displayed when
the driver is requested to select a transmission gear to enable operation
of the hill mode and off-road mode.
ENGINE WARMING PLEASE WAIT XX (diesel engine only) —
Displayed in extremely cold weather, typically below –15°F (–26°C), if
the engine block heater is not utilized. The engine will not respond to
accelerator pedal movement for 30 seconds; this is done so the engine oil
can be properly circulated to avoid engine damage from lack of
lubrication. A timer will begin a countdown from 30 seconds. Once the
counter has reached 0 seconds, OK TO DRIVE will be displayed and the
engine will respond to accelerator pedal movement. Refer to your diesel
supplement for more information.Instrument Cluster
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2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)

FOR 4X4 LOW SHIFT TO N (if equipped) — Displayed when 4X4
LOW is selected and the vehicle is stopped. For more information, refer
to Four-wheel drive (4WD) operation in the Driving chapter.
FOR 4X4 LOW SLOW TO 3 MPH (if equipped) — Displayed when
4X4 LOW is selected while the vehicle is moving. For more information,
refer to Four-wheel drive (4WD) operation in the Driving chapter.
TO EXIT 4X4 LOW APPLY BRAKE (if equipped) — Displayed when
2WD is selected from 4X4 LOW mode. For more information, refer to
Four-wheel drive (4WD) operation in the Driving chapter.
TO EXIT 4X4 LOW SHIFT TO N (if equipped) — Displayed when
2WD is selected while the vehicle has been stopped in 4X4 LOW. For
more information, refer to Four-wheel drive (4WD) operation in the
Driving chapter.
TO EXIT 4X4 LOW SLOW TO 3 MPH (if equipped) — Displayed
when 2WD is selected while the vehicle is operating in 4X4 LOW. For
more information, refer to Four-wheel drive (4WD) operation in the
Driving chapter.
FOR HILL DESCENT REDUCE SPEED (if equipped) — Displayed
when the vehicle speed requirement for off-road mode entry has not
been met.
FOR HILL DESCENT SELECT GEAR (if equipped) — Displayed
when the driver is able to select a transmission gear for hill descent
mode.
HILL DESCENT - DRIVER RESUME CONTROL (if equipped) —
Displayed when hill descent control mode is deactivated and the driver
must resume control.
HILL DESCENT CONTROL FAULT (if equipped) — Displayed when
a hill descent system fault is present.
HILL DESCENT CONTROL OFF (if equipped) — Displayed when
hill descent control mode becomes inactive.
HILL DESCENT CONTROL OFF SYSTEM COOLING (if equipped)
— Displayed when the hill descent system is cooling due to overuse.
HILL DESCENT CONTROL READY (if equipped) — Displayed
when the hill descent control switch is turned on.
REDUCE ACCELERATOR TO PREVENT WHEEL SLIP (if
equipped) — Displayed when the vehicle senses that torque to the
drive wheels has overcome the available traction.
SHIFT DELAYED PULL FORWARD (if equipped) — May display
when shifting to or from 4X4 LOW. For more information, refer to
Four-wheel drive (4WD) operation in the Driving chapter.Instrument Cluster
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2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)

SINGLE ZONE CLIMATE CONTROL
1. Defrost: Distributes outside air through the windshield defroster
vents and de-mister vents. Can be used to clear the windshield of fog
and thin ice. The system will automatically provide outside air to reduce
window fogging. Press this button again to return to the previous air flow
selection.
2. A. R
Rear defroster (if equipped): Press to activate/deactivate the
rear window defroster. Refer to Rear window defroster later in this
chapter for more information. If your vehicle is equipped with both rear
defroster and heated mirrors, the same button will activate both.
2. B. Heated mirrors (if equipped): Press to activate/deactivate.
This feature will remove ice and snow from the side view mirrors.
3. Multifunction control: Press repeatedly to cycle through the
settings to choose:
• : Distributes air through the windshield defroster vents, de-mister
vents, floor vents and rear seat floor vents. The system will
automatically provide outside air to reduce window fogging.
• : Distributes air through the instrument panel vents.
• : Distributes air through the instrument panel vents, floor vents,
rear seat floor vents and de-mister vents.
• : Distributes air through the floor vents and rear seat floor vents.
4. A/C (if equipped): Press to activate/deactivate air conditioning. Use
with recirculated air to improve cooling performance and efficiency. A/C
engages automatically in MAX A/C, (defrost) and
(floor/defrost). Climate Controls
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2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)

5. Recirculated air (if equipped): Press to activate/deactivate air
recirculation in the vehicle. Recirculated air may reduce the amount of
time needed to cool down the interior of the vehicle and may also help
reduce undesired odors from reaching the interior of the vehicle.
Recirculated air engages automatically when MAX A/C is selected or can
be engaged manually in any airflow mode except (defrost). When
the ignition switch is turned off and back on, the climate system will
return to the recirculated air mode only if the A/C button LED is
illuminated and the air distribution selection is either (panel)
or (panel/floor).
6. MAX A/C (if equipped): Distributes recirculated air through the
instrument panel vents to cool the vehicle. This re-cooling of the interior
air is more economical and efficient than normal A/C mode. Recirculated
air may also help reduce undesirable odors from entering the vehicle.
Press the MAX A/C button again for normal A/C operation.
7. Temperature control: Controls the temperature of the airflow in the
vehicle.
8. Fan speed adjustment: Controls the volume of air circulated in
the vehicle.
9. Power: Press to activate/deactivate the climate control system.
When the system is off, outside air is prevented from entering the
vehicle.
Operating tips
• To reduce fog build-up on the windshield during humid weather,
select (defrost) or (floor/defrost). Temperature and/or fan
speed can also be increased to improve clearing.
• To reduce humidity build-up inside the vehicle: do not drive with the
system off or with recirculated air engaged and A/C off.
• Do not put objects under the front seats that will interfere with the
airflow to the back seats.
• Remove any snow, ice or leaves from the air intake area at the base of
the windshield.
• To improve the A/C cool down, drive with the windows slightly open
for 2-3 minutes after start up or until the vehicle has been “aired out.”
• A small amount of air may be felt from the floor vent regardless of the
air distribution setting that is selected.Climate Controls
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2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)

If you are driving during extreme high ambient temperatures and idling
for extended periods of time in gear, it is recommended to run the A/C
in the MAX A/C position, adjust the blower fan speed to the lowest
setting and put the vehicle’s transmission into the P (Park) position to
continue to receive cool air from your A/C system.
For maximum cooling performance (MAX A/C):
• Select MAX A/C.
(Panel) and (panel/floor) modes:
• Move the temperature control to the coolest setting.
• Select A/C and
(recirculated air). Use recirculated air with A/C
to provide colder airflow.
• Set the fan to the highest speed initially, then adjust to maintain
comfort.
To aid in side window defogging/demisting in cold weather:
1. Select
(panel/floor).
2. Select A/C.
3. Adjust the temperature control to maintain comfort.
4. Set the fan speed to the highest setting.
5. Direct the outer instrument panel vents towards the side windows.
To increase airflow to the outer instrument panel vents, close the vents
located in the middle of the instrument panel. Climate Controls
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2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)

4. Manual control: Allows you to manually select where airflow is
directed. To return to full automatic control, press AUTO. When
choosing to control airflow manually, press repeatedly to toggle through
the settings to choose:
• : Distributes air through the windshield defroster vents, de-mister
vents, floor vents and rear seat floor vents. The system will
automatically provide outside air to reduce window fogging.
• : Distributes air through the instrument panel vents.
• : Distributes air through the instrument panel vents, floor vents,
rear seat floor vents and de-mister vents.
• : Distributes air through the floor vents and rear seat floor vents.
5. A/C: Press to activate/deactivate air conditioning. Use with
recirculated air to improve cooling performance and efficiency. A/C
engages automatically in MAX A/C, (defrost)
and (floor/defrost).
6. Recirculated air: Press to activate/deactivate air recirculation in
the vehicle. Recirculated air may reduce the amount of time needed to
cool down the interior of the vehicle and may also help reduce undesired
odors from reaching the interior of the vehicle. Recirculated air engages
automatically when MAX A/C is selected or can be engaged manually in
any airflow mode except (defrost). When the ignition switch is
turned off and back on, the climate system will return to the recirculated
air mode only if the A/C button LED is illuminated and the air
distribution selection is either (panel) or (panel/floor).
7. AUTO: Press to engage automatic temperature control. Select the
desired temperature using the temperature control. The system will
automatically determine fan speed, airflow location, A/C on or off, and
outside or recirculated air, to heat or cool the vehicle to reach the
desired temperature.
8. MAX A/C: Distributes recirculated air through the instrument panel
vents to cool the vehicle. This re-cooling of the interior air is more
economical and efficient than normal A/C mode. Recirculated air may
also help reduce undesirable odors from entering the vehicle. Press the
MAX A/C button again for normal A/C operation.
9. Passenger heated seat (if equipped): Press to control the
passenger heated seat. Refer to Heated and cooled seats in the Seating
and Safety Restraints chapter for more information. Climate Controls
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Owners Guide, 4th Printing
USA (fus)

• To improve the A/C cool down, drive with the windows slightly open
for 2-3 minutes after start up or until the vehicle has been “aired out”.
• A small amount of air may be felt from the floor vent regardless of the
air distribution setting that is selected.
During extreme high ambient temperatures when idling stationary for
extended periods of time in gear, it is recommended to run the A/C in
the max A/C position, reduce blower fan speed from the highest setting
and put the vehicle’s transmission into the P (Park) gear position
(automatic transmission only) to continue to receive cool air from your
A/C system.
For maximum cooling performance:
• Automatic operation:
1. Press AUTO for full automatic operation.
2. Do not override A/C or (recirculated air).
3. Set the temperature to 60°F (16°C).
• Manual operation:
1. Select MAX A/C.
2. Select (recirculated air). Use (recirculated air) with A/C to
provide colder airflow.
3. Set the temperature to 60°F (16°C).
4. Set highest fan speed initially, then adjust to maintain comfort.
To aid in side window defogging/demisting in cold weather:
1. Select (panel/floor).
2. Select A/C.
3. Adjust the temperature control to maintain comfort.
4. Set the fan speed to the highest setting.
5. Direct the outer instrument panel vents towards the side windows.
To increase airflow to the outer instrument panel vents, close the vents
located in the middle of the instrument panel. Climate Controls
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2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)

Note: Do not do the following:
• Place heavy objects on the seat
• Operate the seat heater if water or any other liquid is spilled on the
seat. Allow the seat to dry thoroughly.
The heated seats will only function when the engine is running.
To operate the heated seats:
Press the heated seat button/symbol
to cycle through the various heat
settings and off. Warmer settings are
indicated by more indicator lights.
Cooled seats
The cooled seats will only function when the engine is running.
To operate the cooled seats:
Press the cooled seat button/symbol
to cycle through the various cooling
settings and off. Cooler settings are
indicated by more indicator lights.
If the engine falls below 350 rpm while the cooled seats are on, the
feature will turn itself off and will need to be reactivated.
Climate controlled seats air filter replacement (if equipped)
The heated and cooled seat system includes air filters that must be
replaced periodically. Refer to Scheduled maintenance information.
• There is a filter located under
each front seat.
• The filter can be accessed from the 2nd row foot-well area. Move the
front seats all the way to the full front and full up positions to ease
access. A/CSeating and Safety Restraints
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2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)