
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
2
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)

Vehicle Modification Data Recording
Some aftermarket products may cause severe engine and/or transmission
damage; refer to theWhat is not coveredsection inThe new vehicle
limited warranty for your vehiclechapter of your vehicle’sWarranty
Guidefor more information. Some vehicles are equipped with
Powertrain Control Systems that can detect and store information about
vehicle modifications that increase horsepower and torque output; this
information cannot be erased and will stay in the system’s memory even
if the modification is removed. When a dealer or repair facility works on
your vehicle, it may be necessary for them to access the information in
the Powertrain Control System. This information will likely identify if any
unauthorized modifications have been made to the system and may be
used to determine if repairs will be covered by warranty.
Special instructions
For your added safety, your vehicle is fitted with sophisticated electronic
controls.
Please read the sectionAirbag Supplemental Restraint System
(SRS)in theSeating and Safety Restraintschapter. Failure to
follow the specific warnings and instructions could result in personal
injury.
Front seat mounted rear-facing child or infant seats should
NEVERbe placed in front of an active passenger airbag.
Cell phone use
The use of Mobile Communications Equipment has become increasingly
important in the conduct of business and personal affairs. However,
drivers must not compromise their own or others’ safety when using
such equipment. Mobile Communications can enhance personal safety
and security when appropriately used, particularly in emergency
situations. Safety must be paramount when using mobile communications
equipment to avoid negating these benefits.
Mobile Communication Equipment includes, but is not limited to cellular
phones, pagers, portable email devices, in-vehicle communications
systems, telematics devices and portable two-way radios.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
7

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.
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USA(fus)
Seating and Safety Restraints
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It is extremely dangerous to ride in a cargo area, inside or
outside of a vehicle. In a collision, people riding in these areas
are more likely to be seriously injured or killed. Do not allow people to
ride in any area of your vehicle that is not equipped with seats and
safety belts. Be sure everyone in your vehicle is in a seat and using a
safety belt properly.
In a rollover crash, an unbelted person is significantly more likely
to die than a person wearing a seat belt.
Each seating position in your vehicle has a specific safety belt
assembly which is made up of one buckle and one tongue that
are designed to be used as a pair. 1) Use the shoulder belt on the
outside shoulder only. Never wear the shoulder belt under the arm.
2) Never swing the safety belt around your neck over the inside
shoulder. 3) Never use a single belt for more than one person.
Always transport children 12 years old and under in the back
seat and always properly use appropriate child restraints.
Safety belts and seats can become hot in a vehicle that has been
closed up in sunny weather; they could burn a small child. Check
seat covers and buckles before you place a child anywhere near them.
Front and rear seat occupants, including pregnant women,
should wear safety belts for optimum protection in an accident.
2008 F-250/350/450/550(f23)
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USA(fus)
Seating and Safety Restraints
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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

The following are reasons most often given for not wearing safety belts
(All statistics based on U.S. data):
Reasons given... Consider...
“Crashes are rare
events”
36700 crashes occur every day.The more we
drive, the more we are exposed to “rare” events,
even for good drivers.1 in 4 of us will be
seriously injured in a crash during our lifetime.
“I’m not going far”3of4fatal crashes occur within25miles (40 km)
of home.
“Belts are
uncomfortable”We design our safety belts to enhance comfort. If
you are uncomfortable - try different positions for
the safety belt upper anchorage and seatback
which should be as upright as possible; this can
improve comfort.
“I was in a hurry”Prime time for an accident.Belt-Minder
reminds us to take a few seconds to buckle up.
“Safety belts don’t
work”Safety belts,when used properly,reduce risk of
deathto front seat occupants by45% in cars,
and by60% in light trucks.
“Traffic is light”Nearly 1 of 2 deaths occur in single-vehicle
crashes,many when no other vehicles are around.
“Belts wrinkle my
clothes”Possibly, but a serious crash can do much more
than wrinkle your clothes, particularly if you are
unbelted.
“The people I’m
with don’t wear
belts”Set the example, teen deaths occur 4 times more
often in vehicles with TWO or MORE people.
Children and younger brothers/sisters imitate
behavior they see.
“I have an airbag” Airbags offer greater protection when used with
safety belts. Frontal airbags are not designed to
inflate in rear and side crashes or rollovers.
“I’d rather be
thrown clear”Not a good idea.Peoplewho areejected are 40
times more likely to DIE.Safety belts help
prevent ejection, WE CAN’T “PICK OUR CRASH”.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Seating and Safety Restraints
168

assemblies, including retractors, buckles, front seat belt buckle
assemblies, buckle support assemblies (slide bar-if equipped), shoulder
belt height adjusters (if equipped), shoulder belt guide on seatback (if
equipped), child safety seat LATCH and tether anchors, and attaching
hardware, should be inspected after a collision. Ford Motor Company
recommends that all safety belt assemblies in use in vehicles involved in
a collision be replaced. However, if the collision was minor and your
authorized dealer finds that the belts do not show damage and continue
to operate properly, they do not need to be replaced. Safety belt
assemblies not in use during a collision should also be inspected and
replaced if either damage or improper operation is noted.
Failure to inspect and if necessary replace the safety belt
assembly under the above conditions could result in severe
personal injuries in the event of a collision.
For proper care of soiled safety belts, refer toInteriorin theCleaning
chapter.
AIRBAG SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
2008 F-250/350/450/550(f23)
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USA(fus)
Seating and Safety Restraints
171

Important SRS precautions
The SRS is designed to work with
the safety belt to help protect the
driver and right front passenger
from certain upper body injuries.
Airbags DO NOT inflate slowly;
there is a risk of injury from a
deploying airbag.
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.
Always transport children 12 years old and under in the back
seat and always properly use appropriate child restraints.
The National Highway Traffic Safety Administration (NHTSA)
recommends a minimum distance of at least 10 inches (25 cm)
between an occupant’s chest and the driver airbag module.
Never place your arm over the air bag module as a deploying air
bag can result in serious arm fractures or other injuries.
To properly position yourself away from the airbag:
•Move your seat to the rear as far as you can while still reaching the
pedals comfortably.
•Recline the seat slightly one or two degrees from the upright position.
Do not put anything on or over the air bag module. Placing
objects on or over the air bag inflation area may cause those
objects to be propelled by the air bag into your face and torso causing
serious injury.
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USA(fus)
Seating and Safety Restraints
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