
Fuel gauge:Indicates
approximately how much fuel is left
in the fuel tank (when the ignition
is in the RUN 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.
Battery voltage gauge (manual
transmission only):Indicates the
battery voltage when the ignition is
in the RUN position. If the pointer
moves and stays outside the normal
operating range, have the vehicle’s
electrical system checked as soon as
possible.
Transmission fluid temperature gauge (automatic transmission
only):If the gauge is in the:
Normal area(normal) - the
transmission fluid is within the
normal operating temperature
(between “H” and “C”).
Yellow area(warning) — the
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 the
scheduled maintenance
informationfor instructions. Operating the transmission for extended
periods of time with the gauge in the yellow area may cause internal
transmission damage.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
20

The mirror will automatically return to the normal state whenever the
vehicle is placed in R (Reverse) (when the mirror is on) to ensure a
bright clear view when backing up.
Do not block the sensors on the front and back of the inside rear
view mirror since this may impair proper mirror performance.
Do not clean the housing or glass of any mirror with harsh
abrasives, fuel or other petroleum-based cleaning products.
POWER SIDE VIEW MIRRORS (IF EQUIPPED)
To adjust your mirrors:
1. Rotate the control clockwise to
adjust the right mirror and rotate
the control counterclockwise to
adjust the left mirror.
2. Move the control in the direction
you wish to tilt the mirror.
3. Return to the center position to lock mirrors in place.
The spotter mirror below the main glass (if equipped) must be adjusted
manually.
Heated outside mirrors
(if equipped)
The main mirror glass is heated to
remove ice, mist and fog. To activate
the heated mirrors, press the heated
mirror control (
) located on the
climate control panel. The heated
mirrors will operate for 10 minutes,
then automatically shut off (or shut
off when the engine is turned off).
In cases of extreme ice and cold, the
heater control may need pressing
again after 10 minutes in order to
fully clear the glass. The spotter mirror below the main glass is not heated.
Do not remove ice from the mirrors with a scraper or attempt to
re-adjust the mirror glass if it is frozen in place. These actions
could cause damage to the glass and mirrors.
Fold-away mirrors
Fold the side mirrors in carefully before driving through a narrow space,
like an automatic car wash.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
100

•Average Fuel Economy
•Setup Menu
•System check
•Blank (Odometer and compass, if equipped, off)
Odometer/Trip odometer
Refer toGaugesin theInstrument Clusterchapter.
Distance to empty (DTE)
Selecting this function from the
INFO MENU estimates
approximately how far you can drive
with the fuel remaining in your tank
under normal driving conditions.
Remember to turn the ignition OFF
when refueling to allow this feature to correctly detect the added fuel.
The DTE function will display LOW FUEL LEVEL and sound a chime for
one second when you have approximately 50 miles (80 km) to empty. If
you RESET this warning message, this display and chime will return
within 10 minutes.
DTE is calculated using a running average fuel economy, which is based
on your recent driving history of 500 miles (800 km). This value is not
the same as the average fuel economy display. The running average fuel
economy is reinitialized to a factory default value if the battery is
disconnected.
Average fuel economy (AFE)
Select this function to display your
average fuel economy in miles/gallon
or liters/km.
If you calculate your average fuel
economy by dividing miles traveled
by gallons of fuel used (liters of fuel
used by 100 kilometers traveled), your figure may be different than
displayed for the following reasons:
•Your vehicle was not perfectly level during fill-up
•Differences in the automatic shut-off points on the fuel pumps at
service stations
•Variations in top-off procedure from one fill-up to another
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
117

•Rounding of the displayed values to the nearest 0.1 gallon (liter)
1. Drive the vehicle at least 5 miles (8 km) with the speed control
system engaged to display a stabilized average.
2. Record the highway fuel economy for future reference.
It is important to press the SELECT/RESET control switch (press and
hold for 2 seconds in order to reset the function) after setting the speed
control to get accurate highway fuel economy readings.
Setup menu
Press and hold the SELECT/RESET
control switch to get into the
SETUP MENU sequence from the
INFO MENU for the following
displays:
•Units (English/Metric)
•Language
•Reset to English (if in another language) (see Note below)
Note:When returning to the
SETUP menu and a non-English
language has been selected, HOLD
RESET FOR ENGLISH will be
displayed to change back to English.
Press and hold the SELECT/RESET
control to change back to English.
Units (English/Metric)
1. Select this function from the
SETUP MENU for the current units
to be displayed.
2. Press and hold the
SELECT/RESET control switch to
change from English to Metric.
3. Press the SELECT/RESET control switch for the next SETUP MENU
item or wait for more than 4 seconds to return to the INFO MENU.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
118

Language
Note:When entering the SETUP
MENU and a non-English language
has been selected, “PRESS RESET
FOR ENGLISH” will be displayed to
change back to English.
1. Select this function from the SETUP MENU for the current language
to be displayed.
2. Press and hold the SELECT/RESET control to select a new language.
Selectable languages are English, Spanish and French
3. Press the SELECT/RESET control switch for the next SETUP MENU
item or wait for more than 4 seconds to return to the INFO MENU.
System check
Press and hold the SELECT/RESET control switch to select SYSTEM
CHECK when HOLD RESET FOR SYSTEM CHECK is displayed in the
message center. Selecting this function from the INFO MENU causes the
message center to cycle through each of the systems being monitored.
For each of the monitored systems, the message center will indicate
either an OK message or a warning message for two seconds. Pressing
the SELECT/RESET control switch cycles the message center through
each of the systems being monitored.
The sequence of the system check report and how it appears in the
message center is as follows:
1. ENGINE HOURS
2. CHARGING SYSTEM
3. AIR FILTER (Diesel engine only)
4. DOOR AJAR
5. BRAKE SYSTEM
6. FUEL LEVEL
7. TRAILER DISCONNECTED (if equipped)
System warnings
System warnings alert you to possible problems or malfunctions in your
vehicle’s operating systems.
In the event of a multiple warning situation, the message center will cycle
the display to show all warnings by displaying each one for 4 seconds.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
119

The message center will display the last selected feature if there are no
more warning messages. This allows you to use the full functionality of
the message center after you acknowledge the warning by pressing the
SELECT/RESET control and clearing the warning message.
Warning messages that have been reset are divided into two categories:
•They will reappear on the display ten minutes from the reset.
•They will not reappear until an ignition OFF-RUN cycle has been
completed.
This acts as a reminder that these warning conditions still exist within
the vehicle.
Warning display Status
Park brake engaged Warning returns after
10 minutes if condition
still exists. Check brake system
Driver door ajar Warning returns after
the ignition key is
turned from OFF to
RUN. Passenger door ajar
Rear left door ajar
Rear right door ajar
Low fuel level
Trailer fault (if equipped)
TBC fault (if equipped)
Trailer disconnected (if equipped)
Check air filter (Diesel engine only)
Low brake fluid level
Drain water separator (Diesel engine only)
DRIVER DOOR AJARDisplayed when the driver’s door is not
completely closed.
PASSENGER DOOR AJARDisplayed when the passenger’s door is not
completely closed.
REAR LEFT DOOR AJARDisplayed when the rear left door is not
completely closed.
REAR RIGHT DOOR AJARDisplayed when the rear right door is not
completely closed.
LOW FUEL LEVEL
Displayed as an early reminder of a low fuel condition.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
120

Info menu
This control displays the following
control displays:
•Trip Odometer A or B
•Distance to Empty
•Average Fuel Economy
•Drive Time (Elapsed Travel
Timer)
•Blank (Odometer and compass, if
equipped, off)
Odometer/Trip odometer
Refer toGaugesin theInstrument Clusterchapter.
Distance to empty (DTE)
Selecting this function from the
INFO menu estimates approximately
how far you can drive with the fuel
remaining in your tank under
normal driving conditions.
Remember to turn the ignition OFF
when refueling to allow this feature to correctly detect the added fuel.
The DTE function will display LOW FUEL LEVEL and sound a tone for
one second when you have approximately 50 miles (80 km) to empty. If
you RESET this warning message, this display and tone will return
within 10 minutes.
DTE is calculated using a running average fuel economy, which is based
on your recent driving history of 500 miles (800 km). This value is not
the same as the average fuel economy display. The running average fuel
economy is reinitialized to a factory default value if the battery is
disconnected.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
123

Average fuel economy (AFE)
Select this function from the INFO
menu to display your average fuel
economy in miles/gallon or liters/100
km.
If you calculate your average fuel
economy by dividing miles traveled
since last fill-up by gallons of fuel used (multiply liters used by 100, then
divide by kilometers traveled), your figure may be different than
displayed for the following reasons:
•Your vehicle was not perfectly level during fill-up
•Differences in the automatic shut-off points on the fuel pumps at
service stations
•Variations in top-off procedure from one fill-up to another
•Rounding of the displayed values to the nearest 0.1 gallon (liter)
1. Drive the vehicle at least 5 miles (8 km) with the speed control
system engaged to display a stabilized average.
2. Record the highway fuel economy for future reference.
It is important to press the RESET control after setting the speed
control to get accurate highway fuel economy readings.
Drive timer (Elapsed travel timer)
Select this function from the INFO
menu to display a timer.
To operate the Trip Elapsed Drive
Time perform the following:
1. Press and release RESET in order
to start the timer.
2. Press and release RESET to pause the timer.
3. Press and hold RESET for 2 seconds in order to reset the timer.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
124