
Points to Remember:
•Remember to adjust gain setting before using the TBC for the first
time.
•Readjust GAIN setting on the TBC (according to procedure above)
whenever road, weather and trailer or vehicle loading conditions
change from those that existed when the gain was initially set.
•The sliding lever on the TBC should be used only for manual
activation of trailer brakes to assist with proper adjustment of the
GAIN. Misuse, such as application during trailer sway, could cause
instability of trailer and/or tow vehicle.
•Avoid towing in adverse weather conditions. The TBC does not
provide anti-lock control of the trailer wheels. Trailer wheels can
lock-up on slippery surfaces, resulting in reduced stability of trailer
and tow vehicle.
•The TBC interacts with the brake system of the vehicle, including
ABS, in order to reduce the likelihood of trailer wheel lockup.
Therefore, if these systems are not functioning properly the TBC may
not function at full performance.
•When the vehicle is turned off, the TBC Output is disabled and the
display is shut down. Reactivation of the ignition from OFF to RUN
will awaken the TBC module.
•The TBC is only a factory installed item. Ford is not responsible for
warranty or performance of the TBC due to misuse or out-of-factory
installation.
Trailer lamps
Trailer lamps are required on most towed vehicles. Make sure all running
lights, brake lights, turn signals and hazard lights are working. See your
dealer or trailer rental agency for proper instructions and equipment for
hooking up trailer lamps.
Using a step bumper (if equipped)
The rear bumper is equipped with an integral hitch and only requires a
ball with a one inch (25.4 mm) shank diameter. The bumper has a 5,000
lb. (2,270 kg) trailer weight and 500 lb. (227 kg) tongue weight capacity.
If it is necessary to relocate the trailer hitch ball position, a
frame-mounted trailer hitch must be installed.
2005 F250/350/450/550(f23)
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USA_English(fus)
Tires, Wheels and Loading
174

STARTING
Positions of the ignition
1. ACCESSORY, allows the electrical
accessories such as the radio to
operate while the engine is not
running.
2. LOCK, locks the steering wheel,
automatic transmission gearshift
lever and allows key removal. For
vehicles equipped with a manual
transmission, you must depress the
ignition release lever to release the
key.
3. OFF, shuts off the engine and all accessories without locking the
steering wheel. This position also allows the automatic transmission shift
lever to be moved from the P (Park) position without the brake pedal
being depressed.
When the key is in the ignition and in the OFF position, the
automatic transmission shift lever can be moved from the P
(Park) position without the brake pedal depressed. To avoid unwanted
vehicle movement, always set the parking brake.
4. ON, all electrical circuits operational. Warning lights illuminated. Key
position when driving.
5. START, cranks the engine. Release the key as soon as the engine
starts.
Preparing to start your vehicle
Engine starting is controlled by the powertrain control system. This
system meets all Canadian Interference-Causing Equipment standard
requirements regulating the impulse electrical field strength of radio
noise.
When starting a fuel-injected engine, don’t press the accelerator before
or during starting. Only use the accelerator when you have difficulty
starting the engine. For more information on starting the vehicle, refer to
Starting the enginein this chapter.
3
1
2
5
4
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Driving
Driving
178

Make sure the corresponding lights illuminate or illuminate briefly. If a
light fails to illuminate, have the vehicle serviced.
•If the driver’s safety belt is fastened, the
light may not illuminate.
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Driving
181

•auto-manual hub locks can be
manually overridden by rotating
the hub lock control from AUTO
to LOCK if desired.
•automatic operation of the
hub locks is recommended,and
will increase fuel economy
•For proper operation, make
sure that each hub is fully
engaged and that both hub
locks are set to the same position (both set to LOCK or both
set to AUTO). To engage LOCK, turn the hub locks completely
clockwise; to engage AUTO, turn the hub locks completely
counterclockwise.
4WD system indicator lights
The 4WD system indicator lights illuminate only under the following
conditions. If these lights illuminate when driving in 2WD, contact your
Ford dealer as soon as possible.
•4x4- momentarily illuminates
after the engine is started.
Illuminates when 4H (4x4 High)
or 4L (4x4 Low) is engaged.
•LOW RANGE– momentarily
illuminates when the ignition is
turned to the ON position.
Illuminates when 4L (4x4 Low) is
engaged.
Using a manual 4WD system (if equipped)
Note:Some noise may be heard as the 4WD system shifts or engages.
This is normal.
2H (2WD High)– For general on-road driving. Sends power to the rear
wheels only.
4H (4WD High)– For winter and off-road conditions. Sends power to
front and rear wheels.
N (Neutral)– Only used when towing the vehicle.
4L (4WD Low)– For low-speed off-road applications that require extra
power such as steep grades, deep sand or pulling a boat out of the water.
Sends power to front and rear wheels.
4x4
LOW
RANGE
2005 F250/350/450/550(f23)
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USA_English(fus)
Driving
197

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). This OBD-II system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD-II system also assists the
service technician in properly servicing your vehicle. When theCheck
engine/Service engine soonlight illuminates, the OBD-II system has
detected a malfunction. Temporary malfunctions may cause yourCheck
engine/Service engine soonlight 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.
3. The fuel cap may not have been securely tightened.
These temporary malfunctions can be corrected by filling the fuel tank
with good quality fuel and/or properly tightening the fuel cap. After three
driving cycles without these or any other temporary malfunctions
present, theCheck engine/Service engine soonlight should turn off. (A
driving cycle consists of a cold engine startup followed by mixed
city/highway driving.) No additional vehicle service is required.
If theCheck engine/Service engine soonlight remains on, have your
vehicle serviced at the first available opportunity.
Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If yourCheck engine/Service engine
soonlight is on, refer to the description in theWarning lights and
chimessection of theInstrument Clusterchapter. Your vehicle may not
pass the I/M test with theCheck engine/Service engine soonlight on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a “not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•First, at least 10 minutes of driving on an expressway or highway.
•Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
2005 F250/350/450/550(f23)
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USA_English(fus)
Maintenance and Specifications
272

GENUINE FORD ACCESSORIES FOR YOUR VEHICLE
A wide selection of Genuine Ford Accessories are available for your
vehicle through your local authorized Ford or Ford of Canada dealer.
These quality accessories have been specifically engineered to fulfill your
automotive needs; they are custom designed to complement the style
and aerodynamic appearance of your vehicle. In addition, each accessory
is made from high quality materials and meets or exceeds Ford’s rigorous
engineering and safety specifications. Ford Motor Company will repair or
replace any properly dealer-installed Genuine Ford Accessory found to
be defective in factory-supplied materials or workmanship during the
warranty period, as well as any component damaged by the defective
accessory. The accessory will be warranted for whichever provides you
the greatest benefit:
•12 months or 12,000 miles (20,000 km) (whichever occurs first), or
•the remainder of your new vehicle limited warranty.
This means that Genuine Ford Accessories purchased along with your
new vehicle and installed by the dealer are covered for the full length of
your New Vehicle’s Limited Warranty — 3 years or 36,000 miles (60,000
km) (whichever occurs first). Contact your dealer for details and a copy
of the warranty.
Not all accessories are available for all models.
The following is a list of several Genuine Ford Accessory products for
your vehicle. Not all accessories are available for all models. For a
complete listing of the accessories that are available for your vehicle,
please contact your dealer or visit our online store at:
www.fordaccessoriesstore.com.
Exterior style
Bug shields
Chrome exhaust tip
Deflectors
Exterior trim
Fender flares
Front end covers
Grille inserts
Fog lights and Daytime Running Lamps (DRLs)
Running boards
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USA_English(fus)
Accessories
Accessories
299

dipstick ....................................251
filter, specifications ........254, 282
recommendations ...................254
refill capacities ........................283
specifications ..................286, 289
Exhaust fumes ..........................183
F
Fail safe coolant ........................262
Fluid capacities .........................283
Foglamps .....................................40
Four-Wheel Drive vehicles .......195
description ..............................200
driving off road .......................202
electronic shift ................196, 200
indicator light .........................197
lever operated shift ................197
manual locking hubs ..............196
preparing to drive your
vehicle .....................................186
Fuel ............................................263
calculating fuel
economy ............................71, 267
cap ...........................................265
capacity ...................................283
choosing the right fuel ...........266
comparisons with EPA fuel
economy estimates .................270
detergent in fuel .....................267
filling your vehicle with
fuel ...........................263, 265, 268
filter, specifications ........267, 282
fuel pump shut-off switch .....214
improving fuel economy ........267
octane rating ...................266, 289
quality ......................................266
running out of fuel .................267safety information relating to
automotive fuels .....................263
Fuel pump shut-off switch .......214
Fuses ..................................215–216
G
Gas cap (see Fuel cap) ............265
Gas mileage
(see Fuel economy) .................267
Gauges .........................................16
transmission fluid
temperature gauge ...................20
H
Hazard flashers .........................214
Head restraints ...........................89
Headlamps ...................................39
aiming ..................................41, 43
autolamp system .......................39
daytime running lights .............40
flash to pass ..............................41
high beam .................................41
replacing bulbs .............46, 48–49
turning on and off ....................39
Heating
heating and air conditioning
system ...........................33–34, 36
Hood ..........................................248
I
Ignition ...............................178, 289
Infant seats
(see Safety seats) .....................119
Inspection/maintenance (I/M)
testing ........................................272
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Owners Guide (post-2002-fmt)
USA_English(fus)
Index
304

Instrument panel
cleaning ...................................243
cluster ........................................12
lighting up panel and
interior .......................................41
J
Jump-starting your vehicle ......224
K
Keyless entry system .................85
Keys
positions of the ignition .........178
L
Lamps
autolamp system .......................39
daytime running light ...............40
fog lamps ...................................40
headlamps .................................39
headlamps, flash to pass ..........41
instrument panel, dimming .....41
interior lamps ...........................45
replacing bulbs ...... 45–46, 48–49,
51–53
Lane change indicator
(see Turn signal) ........................44
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........183
speed control ............................64
Load limits .................................160
Loading instructions .................167
Locks
childproof ..................................80
Lubricant specifications ...286, 289
Lug nuts ....................................148
Lumbar support, seats ...............94M
Manual transmission .................191
fluid capacities ........................283
lubricant specifications ..........289
reverse .....................................192
Message center ...............66, 68–69
english/metric button ...............73
system check button ................72
warning messages .....................74
Mirrors ...................................55, 59
automatic dimming rearview
mirror ........................................59
fold away ...................................61
heated ........................................60
side view mirrors (power) .......59
signal .........................................60
Moon roof ....................................56
Motorcraft parts ................267, 282
O
Octane rating ............................266
Oil (see Engine oil) ..................251
Overdrive .....................................55
P
Parking brake ............................184
Parts (see Motorcraft parts) ....282
Pedals (see Power adjustable
foot pedals) .................................62
Power adjustable foot pedals .....62
Power distribution box
(see Fuses) ...............................221
Power door locks ........................79
Power mirrors .............................59
Power point .................................57
2005 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA_English(fus)
Index
305