Page 2 of 400
Locks and Security 146
Keys 146
Locks 146
Anti-theft system 159
Seating and Safety Restraints 162
Seating 162
Safety restraints 170
Airbags 184
Child restraints 192
Tires, Wheels and Loading 204
Tire information 206
Tire inflation 209
Tire Pressure Monitoring System (TPMS) 224
Vehicle loading 236
Trailer towing 242
Trailer brake controller-integrated 246
Recreational towing 253
Driving 255
Starting 255
Brakes 260
Traction Control™ 262
Transmission operation 265
Snowplowing 291
Roadside Emergencies 294
Getting roadside assistance 294
Hazard flasher switch 296
Fuel pump shut-off switch 296
Fuses and relays 297
Changing tires 307
Lug nut torque 321
Jump starting 322
Wrecker towing 327
Table of Contents
2
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Page 18 of 400

•Low oil pressure
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the OFF, LOCK or ACCESSORY position and the driver’s door
is opened.
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.
Parking brake on warning chime:Sounds when the parking brake is
set, the engine is running and the vehicle is driven more than 3 mph (5
km). If the warning remains on after the parking brake is off, contact
your authorized dealer as soon as possible.
Turn signal chime:Sounds when the turn signal lever has been
activated to signal a turn and not turned off after the vehicle is driven
more than 2 miles (3.2 km).
Message center activation chime:Sounds when some warning
messages appears in the message center display for the first time.
Overspeed chime (if equipped):Sounds when the vehicle speed
reaches 75 mph (120 km/h) or higher.
Airbag secondary warning chime:Sounds to inform the driver, in the
event that the airbag readiness warning lamp is inoperable, that there is
a fault in the supplemental restraint system
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
18
Page 46 of 400

Radio Display Condition Action Required
ACQUIRING Radio requires more
than two seconds to
produce audio for the
selected channel.No action required.
This message should
disappear shortly.
SAT FAULT Internal module or
system failure
present.If this message does
not clear within a short
period of time, or with
an ignition key cycle,
your receiver may have
a fault. See your
authorized dealer for
service.
INVALID CHNL Channel no longer
available.This previously
available channel is no
longer available. Tune
to another channel. If
the channel was one of
your presets, you may
choose another channel
for that preset button.
UNSUBSCRIBED Subscription not
available for this
channel.Contact SIRIUS at
1–888–539–7474 to
subscribe to the
channel or tune to
another channel.
NO TEXT Artist information not
available.Artist information not
available at this time on
this channel. The
system is working
properly.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Entertainment Systems
46
Page 56 of 400

3.DISPLAY:Press to access the on-screen display of the FES functions
and adjustments.
4.RETURN:Press to return to the previous menu screen.
5.ANGLE(DVD dependent): Press to select the angle to view the
scene.
6.Channel A/B:Press to select either A or B headphones and then use
the MEDIA control to select the desired playing media for the
headphones.
7.VOL (Volume):When in Single Play, press to increase (
)or
decrease (
) the volume over all speakers. When in Dual Play, press to
increase (
) or decrease () the volume for the wired headphones.
(Wireless headphone volume is controlled with the rotary dial on the
right ear piece.)
8.Fast Forward/Next:In DVD mode, press and hold for a quick
advance within the DVD. Press and release to advance to the next
chapter. In CD/MP3 mode, press to access the next track.
9.Play/Pause:Press to play or pause a DVD.
10.SHUFFLE:Press to play all tracks on the current CD/MP3 disc in
random order.
11.STOP:Press to stop the current DVD or CD/MP3.
12.
/Speaker/Headphone(Single/Dual Play): Press to toggle
between Single Play (same media playing through all speakers) and Dual
Play (headphone mode — the rear speakers are muted). You can also
press the 2 and 4 memory presets on the audio system at the same time
to perform the same function.
13.Numeric Keypad:Use the numeric controls to enter in a specific
CD/MP3 track or DVD chapter to be played.
14.C (Cancel):Press to cancel/clear the numeric input (i.e. chapter
number).
15.MEDIA:Press to cycle through the possible media sources: AM,
FM1, FM2, SAT (if equipped), CD, DVD, LINE IN (if equipped),
DVD-AUX.
Channel B can only access DVD and AUX sources.
16.VIDEO:Press to cycle through video states: DVD-DISC, DVD-AUX,
NON-DVD, Off.
17.EJECT:Press to eject a disc from the FES.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Entertainment Systems
56
Page 109 of 400

Never adjust the accelerator and brake pedal with feet on the
pedals while the vehicle is moving.
The accelerator and brake pedal positions are saved when doing a
memory set function and can be recalled along with the vehicle
personality features when a memory position is selected through the
remote entry transmitter, keyless entry keypad or memory switch on the
driver’s door (if equipped with memory feature). Refer toMemory
seats/power mirrors/adjustable pedalsin theSeating and Safety
Restraintschapter.
SPEED CONTROL (IF EQUIPPED)
With speed control set, you can maintain a set speed without keeping
your foot on the accelerator pedal.
Do not use the speed control in heavy traffic or on roads that
are winding, slippery or unpaved.
Setting speed control
The controls for using your speed
control are located on the steering
wheel for your convenience.
1. Press the ON control and release
it.
2. Accelerate to the desired speed.
3. Press the SET + control and
release it.
4. Take your foot off the accelerator
pedal.
5. The indicator light (
)onthe
instrument cluster will turn on.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
109
Page 114 of 400

UPFITTER CONTROLS (IF EQUIPPED)
Your vehicle may be equipped with
the Upfitter option package which
will provide four switches, mounted
in the center of the instrument
panel, labeled AUX 1, AUX 2, AUX 3
and AUX 4. These switches will only
operate while the ignition is in the 3
(ON) position, whether the engine
is running or not. It is, however, recommended that the engine remain
running to maintain battery charge when using the Upfitter switches for
extended duration or higher current draws. (This is even more important
for vehicles with diesel engines since the glow plugs are also draining
battery power when the ignition key is in the 3 [ON] position.)
When switched on by the operator they provide 10 amps, 15 amps or 30
amps of electrical battery power for a variety of personal or commercial
uses.
If your vehicle is equipped with this option, there will also be a relay box
located on the driver side end of the instrument panel. See your
authorized dealer for service.
The relays are coded as shown in
the accompanying illustration.
RELAY
1 RELAY
2 RELAY
3 RELAY
4
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
114
Page 124 of 400

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.
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)
Low brake fluid level
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
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Page 125 of 400

Warning display Status
Low tire pressure (if equipped) Warning can be cleared by pressing
the RESET button. Warning can
reappear if the condition is still
present. Warning will reappear on the
next ignition key-cycle if the condition
still exists. Tire Monitor Fault (if
equipped)
Tire Sensor Fault (if equipped)
Check air filter (diesel engine
only)
Drain water separator (diesel
engine only)
Stop safely now (diesel engine
only)
Engine warming please wait
xx(diesel engine only)
OK to drive (diesel engine
only)
Engine turns off in xx (diesel
engine only)
Engine turned off (diesel
engine only)
Drive to clean exhaust system
(diesel engine only)
Cleaning exhaust filter (diesel
engine only)
Exhaust filter drive complete
(diesel engine only)
Oil change required/Engine oil
change soon (diesel engine
only)
Oil life ok (diesel engine only)
PARK BRAKE ENGAGEDDisplayed when the parking brake is applied
(or not fully released).
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
125