
Always set the parking brake fully and make sure the gearshift is
latched in P (Park). Turn the ignition to the LOCK position and
remove the key whenever you leave your vehicle.
R (Reverse)
With the gearshift lever in R (Reverse), the vehicle will move backward.
Always come to a complete stop before shifting into and out of R
(Reverse).
N (Neutral)
With the gearshift lever in N (Neutral), the vehicle can be started and is
free to roll. Hold the brake pedal down while in this position.
D (Overdrive) with Tow/Haul OFF
D (Overdrive) with Tow/Haul OFF is the normal driving position for the
best fuel economy. The overdrive function allows automatic upshifts and
downshifts through gears one through five.
D (Overdrive) with Tow/Haul ON
The Tow/Haul feature improves transmission operation when towing a
trailer or a heavy load. All transmission gear ranges are available when
using Tow/Haul.
To activate Tow/Haul, press the
button on the end of the gearshift
lever.
The TOW HAUL indicator light will
illuminate in the instrument cluster.
Tow/Haul delays upshifts to reduce frequency of transmission shifting.
Tow/Haul also provides engine braking in all forward gears when the
transmission is in the D (Overdrive) position; this engine braking will
slow the vehicle and assist the driver in controlling the vehicle when
descending a grade. Depending on driving conditions and load
conditions, the transmission may downshift, slow the vehicle and control
the vehicle speed when descending a hill, without the accelerator pedal
being pressed. The amount of downshift braking provided will vary based
upon the amount the brake pedal is depressed.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
242

3. Turn the ignition off.
Do not park your vehicle in Neutral, it may move unexpectedly
and injure someone. Use 1 (First) gear and set the parking brake
fully.
REVERSE SENSING SYSTEM (IF EQUIPPED)
The Reverse Sensing System (RSS) sounds a tone to warn the driver of
obstacles near the rear bumper when the R (Reverse) is selected and the
vehicle is moving at speeds less than 3 mph (5 km/h). The system is not
effective at speeds above 3 mph (5 km/h) and may not detect certain
angular or moving objects.
To help avoid personal injury, please read and understand the
limitations of the reverse sensing system as contained in this
section. Reverse sensing is only an aid for some (generally large and
fixed) objects when moving in reverse on a flat surface at “parking
speeds”. Inclement weather may also affect the function of the RSS;
this may include reduced performance or a false activation.
To help avoid personal injury, always use caution when in
reverse and when using the RSS.
This system is not designed to prevent contact with small or
moving objects. The system is designed to provide a warning to
assist the driver in detecting large stationary objects to avoid damaging
the vehicle. The system may not detect smaller objects, particularly
those close to the ground.
Certain add-on devices such as large trailer hitches, bike or
surfboard racks and any device that may block the normal
detection zone of the RSS system may create false beeps.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
246

Preparing your vehicle
When the battery is disconnected or a new battery is installed, the
transmission must relearn its shift strategy. As a result, the transmission
may have firm and/or soft shifts. This operation is considered normal and
will not affect function or durability of the transmission. Over time, the
adaptive learning process will fully update transmission operation.
1.Use only a 12–volt supply to start your vehicle.
2. Do not disconnect the battery of the disabled vehicle as this could
damage the vehicle’s electrical system.
3. Park the booster vehicle close to the hood of the disabled vehicle
making sure the two vehiclesdo nottouch. Set the parking brake on
both vehicles and stay clear of the engine cooling fan and other moving
parts.
4. Check all battery terminals and remove any excessive corrosion before
you attach the battery cables. Ensure that vent caps are tight and level.
5. Turn the heater fan on in both vehicles to protect from any electrical
surges. Turn all other accessories off.
Connecting the jumper cables
1. Connect the positive (+) jumper cable to the positive (+) terminal of
the discharged battery.
Note:In the illustrations,lightning boltsare used to designate the
assisting (boosting) battery.
+–+–
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
291

If you did not take advantage of the Ford Extended Service Plan at the
time of purchasing your vehicle, you may still be eligible. Since this
information is subject to change, please ask your authorized dealer for
complete details about Ford Extended Service Plan coverage options, or
visit the Ford ESP website at www.ford-esp.com.
GETTING ASSISTANCE OUTSIDE THE U.S. AND CANADA
Before exporting your vehicle to a foreign country, contact the
appropriate foreign embassy or consulate. These officials can inform you
of local vehicle registration regulations and where to find unleaded fuel.
If you cannot find unleaded fuel or can only get fuel with an anti-knock
index lower than is recommended for your vehicle, contact a regional
office or owner relations/customer relationship office.
The use of leaded fuel in your vehicle without proper conversion may
damage the effectiveness of your emission control system and may cause
engine knocking or serious engine damage. Ford Motor Company/Ford of
Canada is not responsible for any damage caused by use of improper
fuel. Using leaded fuel may also result in difficulty importing your vehicle
back into the U.S.
If your vehicle must be serviced while you are traveling or living in
Central America, the Caribbean, or the Middle East, contact the nearest
authorized dealer. If the authorized dealer cannot help you, write or call:
FORD MOTOR COMPANY
FORD EXPORT OPERATIONS
1555 Fairlane Drive
Fairlane Business Park #3
Allen Park, Michigan 48101
U.S.A.
Telephone: (313) 594-4857
FAX: (313) 390-0804
If you are in another foreign country, contact the nearest authorized
dealer. If the authorized dealer employees cannot help you, they can
direct you to the nearest Ford affiliate office.
If you buy your vehicle in North America and then relocate outside of
the U.S. or Canada, register your vehicle identification number (VIN) and
new address with Ford Motor Company Export Operations.
Customers in the U.S. should call 1–800–392–3673.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Customer Assistance
303

emission control, such non-Ford parts should be equivalent to genuine
Ford Motor Company parts in performance and durability.
Do not park, idle, or drive your vehicle in dry grass or other dry
ground cover. The emission system heats up the engine
compartment and exhaust system, which can start a fire.
Illumination of theCheck enginelight (
), charging system warning
light or the temperature warning light, fluid leaks, strange odors, smoke
or loss of engine power, could indicate that the emission control system
is not working properly.
Exhaust leaks may result in entry of harmful and potentially
lethal fumes into the passenger compartment.
Do not make any unauthorized changes to your vehicle or engine. By
law, vehicle owners and anyone who manufactures, repairs, services,
sells, leases, trades vehicles, or supervises a fleet of vehicles are not
permitted to intentionally remove an emission control device or prevent
it from working. Information about your vehicle’s emission system is on
the Vehicle Emission Control Information Decal located on or near the
engine. This decal identifies engine displacement and gives some tune up
specifications.
Please consult yourWarranty Guidefor complete emission warranty
information.
On board diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s
emission control system. This system is commonly known as the On
Board Diagnostics System (OBD-II). The OBD-II system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD-II system also assists your
authorized dealer in properly servicing your vehicle. When the
indicator illuminates, the OBD-II system has detected a malfunction.
Temporary malfunctions may cause the
indicator to illuminate.
Examples are:
1. The vehicle has run out of fuel - the engine may misfire or run poorly.
2. Poor fuel quality or water in the fuel - the engine may misfire or run
poorly.
3. The fuel cap may not have been securely tightened. SeeFuel filler
capin this chapter.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
339

fluid, checking and adding ....340
fluid, refill capacity ................352
Power Windows ...........................98
Preparing to drive
your vehicle ...............................239
R
Radio ................................22, 24, 30
Rear seat entertainment
system ..........................................43
Relays ........................................268
Remote entry system ...............141
illuminated entry ............144, 146
locking/unlocking doors .........136
Reverse sensing system ...........246
Roadside assistance ..................265
S
Safety Belt Maintenance ..........170
Safety belts (see Safety
restraints) ..........158, 160–162, 164
Safety defects,
reporting ............................304–305
Safety
restraints ...........158, 160–162, 164
Belt-Minder...........................167
extension assembly ................170
for adults .................160–162, 164
for children .....................180–181
lap belt ....................................166
safety belt maintenance .........170
warning light and
chime ...............................166–167
Safety seats for children ..........184
Safety Compliance
Certification Label ....................357Satellite Radio Information ........40
Seat belts
(see Safety restraints) .............158
Seats ..........................................151
child safety seats ....................184
cleaning ...................................311
heated ........................................75
memory seat ...................142, 156
SecuriLock passive anti-theft
system ................................148–149
Servicing your vehicle ..............314
Setting the clock
AM/FM/CD .................................25
AM/FM/In-dash 6 CD ................31
Snowplowing .................8, 262–264
Spark plugs,
specifications .....................350, 356
Special notice ................................9
ambulance conversions ..............8
diesel-powered vehicles .............8
utility-type vehicles ....................8
Speed control ............................104
Starting your vehicle ........231–233
jump starting ..........................290
Steering wheel
controls ....................................107
tilting .........................................95
T
Tailgate ......................................131
Tilt steering wheel ......................95
Tires ...................................194–195
alignment ................................204
care ..........................................200
changing ..........................279, 282
checking the pressure ............199
inflating ...................................196
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
365