Page 2 of 368
Locks and Security 136
Keys 136
Locks 136
Anti-theft system 148
Seating and Safety Restraints 151
Seating 151
Safety restraints 158
Airbags 171
Child restraints 180
Tires, Wheels and Loading 192
Tire information 195
Tire inflation 196
Vehicle loading 212
Trailer towing 219
Trailer brake controller-integrated 223
Recreational towing 230
Driving 231
Starting 231
Brakes 235
Traction Control™ 237
Transmission operation 240
Roadside Emergencies 265
Getting roadside assistance 265
Hazard flasher switch 267
Fuel pump shut-off switch 267
Fuses and relays 268
Changing tires 277
Lug nut torque 289
Jump starting 290
Wrecker towing 296
Table of Contents
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2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Page 10 of 368
These are some of the symbols you may see on your vehicle.
Vehicle Symbol Glossary
Safety Alert
See Owner’s Guide
Fasten Safety BeltAirbag - Front
Airbag - SideChild Seat Lower
Anchor
Child Seat Tether
AnchorBrake System
Anti-Lock Brake SystemParking Brake System
Brake Fluid -
Non-Petroleum BasedParking Aid System
Stability Control SystemSpeed Control
Master Lighting SwitchHazard Warning Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
10
Page 11 of 368
Vehicle Symbol Glossary
Power Windows
Front/Rear
Power Window Lockout
Child Safety Door
Lock/UnlockInterior Luggage
Compartment Release
Panic AlarmEngine Oil
Engine CoolantEngine Coolant
Temperature
Do Not Open When HotBattery
Avoid Smoking, Flames,
or SparksBattery Acid
Explosive GasFan Warning
Power Steering FluidMaintain Correct Fluid
LevelMAX
MIN
Emission SystemEngine Air Filter
Passenger Compartment
Air FilterJack
Check Fuel CapLow Tire Pressure
Warning
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
11
Page 87 of 368
2. Remove the four bolts from the
top, side and bottom front of the
headlamp assembly.
3. Pull the assembly straight out
disengaging two snap clips to
fender.
4. Disconnect the electrical
connector by squeezing the release
tab and pushing the connector
forward and then pulling it
rearward.
5. Remove the bulb assembly by
turning it counterclockwise and
pulling it straight out.
Handle a halogen headlamp bulb carefully and keep out of
children’s reach. Grasp the bulb only by its plastic base and do
not touch the glass. The oil from your hand could cause the bulb to
break the next time the headlamps are operated.
Install the new bulb(s) in reverse order.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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Page 98 of 368

POWER WINDOWS
Do not leave children unattended in the vehicle and do not let
children play with the power windows. They may seriously injure
themselves.
When closing the power windows, you should verify they are free
of obstructions and ensure that children and/or pets are not in
the proximity of the window openings.
Press and pull the window switches
to open and close windows.
•Push down (to the first detent)
and hold the switch to open.
•Pull up (to the first detent) and
hold the switch to close.
One touch down
Allows the driver’s window to open
fully without holding the control
down. Push the switch completely
down to the second detent and
release quickly. The window will
open fully. Momentarily press the
switch to any position to stop the
window operation.
Window lock (if equipped)
The window lock feature allows only
the driver to operate the power
windows.
To lock out all the window controls
except for the driver’s, press the
right side of the control. Press the
left side to restore the window
controls.
A
U
T
O
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
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Page 140 of 368

The user should receive ahorn chirpto indicate the system has been
disabled or a chirp followed by a honk to indicate the system has been
enabled.
CHILDPROOF DOOR LOCKS (IF EQUIPPED)
•When these locks are set, the
rear doors cannot be opened from
the inside.
•The rear doors can be opened
from the outside when the doors
are unlocked.
The childproof locks are located on
rear edge of each rear door and
must be set separately for each
door. Setting the lock for one door
will not automatically set the lock
for both doors.
•Move lock control up to engage
the childproof lock.
•Move lock control down to
disengage the childproof lock.
REMOTE ENTRY SYSTEM (IF EQUIPPED)
This device complies with part 15 of the FCC rules and with RS-210 of
Industry Canada. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) This device
must accept any interference received, including interference that may
cause undesired operation.
Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to
operate the equipment.
The typical operating range for your remote entry transmitter is
approximately 33 feet (10 meters). A decrease in operating range could
be caused by:
•weather conditions,
•nearby radio towers,
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Locks and Security
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Page 158 of 368
To gain access to the cupholders
and tray,pull down on the armrest.
To gain access to the 60/40 load
floor,store the cushion in the
upright locked position. Pull up on
the straps located at the sides of the
load floor, and rotate forward until
resting on the carpet.
SAFETY RESTRAINTS
Safety restraints precautions
Always drive and ride with your seatback upright and the lap
belt snug and low across the hips.
To reduce the risk of injury, make sure children sit in the back
seat where they can be properly restrained.
Never let a passenger hold a child on his or her lap while the
vehicle is moving. The passenger cannot protect the child from
injury in a collision.
All occupants of the vehicle, including the driver, should always
properly wear their safety belts, even when an air bag
supplemental restraint system (SRS) is provided.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Seating and Safety Restraints
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Page 161 of 368

This mode should be usedany timea child safety seat is installed
except a booster in a front or rear outboard passenger seating position
(if equipped). Children 12 years old and under should be properly
restrained in the rear seat whenever possible. Refer toSafety restraints
for childrenorSafety seats for childrenlater in this chapter.
How to use the automatic locking mode
•Buckle the combination lap and
shoulder belt.
•Grasp the shoulder portion and
pull downward until the entire
belt is pulled out.
•Allow the belt to retract. As the belt retracts, you will hear a clicking
sound. This indicates the safety belt is now in the automatic locking
mode.
How to disengage the automatic locking mode
Disconnect the combination lap/shoulder belt and allow it to retract
completely to disengage the automatic locking mode and activate the
vehicle sensitive (emergency) locking mode.
After any vehicle collision, the front passenger and rear outboard
seat belt systems must be checked by your authorized dealer to
verify that the “automatic locking retractor” feature for child seats is
still functioning properly. In addition, all seat belts should be checked
for proper function.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Seating and Safety Restraints
161