Page 1 of 312
Introduction 4
Instrument Cluster 12
Warning and control lights 12
Gauges 16
Entertainment Systems 20
AM/FM stereo 20
AM/FM stereo cassette 22
AM/FM stereo with CD 25
AM/FM stereo cassette with CD 28
AM/FM stereo with in-dash six CD 32
Climate Controls 38
Heater only 38
Manual heating and air conditioning 39
Lights 41
Headlamps 41
Turn signal control 44
Bulb replacement 45
Driver Controls 52
Windshield wiper/washer control 52
Steering wheel adjustment 53
Moon roof 55
Power windows 57
Mirrors 59
Speed control 61
Message center 70
Table of Contents
1
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Table of Contents
Page 38 of 312

HEATER ONLY SYSTEM
(IF EQUIPPED)
1.Fan speed adjustment:Controls
the volume of air circulated in the
vehicle.
2.Temperature selection:
Controls the temperature of the
airflow in the vehicle.
3.Air flow selections:Controls the direction of the airflow in the
vehicle. See the following for a brief description on each control:
:Distributes outside air through the instrument panel vents.
OFF:Outside air is shut out and the fan will not operate.
:Distributes outside air through the instrument panel vents and the
floor vents.
:Distributes outside air through the floor vents.
:Distributes outside air through the windshield defroster vents and
floor vents.
:Distributes outside air through the windshield defroster vents.
Operating tips
•To reduce fog build up on the windshield during humid weather, place
the air flow selector in the
position.
•To reduce humidity build up inside the vehicle during cold or warm
weather, do not drive or leave the vehicle parked with the air flow
selector in the OFF position.
•Do not put objects under the front seats that will interfere with the air
flow to the rear seats.
•Remove any snow, ice or leaves from the air intake area at the base of
the windshield.
To aid in side window defogging/demisting in cold weather:
1. Select
.
2. Modulate the temperature control to maintain comfort.
3. Set the fan speed to the highest setting.
4. Direct the outer instrument panel vents toward the side windows.
To increase airflow to the outer instrument panel vents, close the vents
located in the middle of the instrument panel.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
Climate Controls
38
Page 72 of 312

The compass heading is displayed in average fuel economy modes, fuel
range modes and temperature modes.
The compass reading may be affected when you drive near large
buildings, bridges, power lines and powerful broadcast antennas.
Magnetic or metallic objects placed in or on the vehicle may also affect
compass accuracy. Adjustments may need to be made to the zone and
calibration of the compass.
Compass zone adjustment
1. Determine which magnetic zone
you are in for your geographic
location by referring to the zone
map.
2. Locate the trip computer on the
overhead console.
3. Turn ignition to the ON position.
4. Press and hold both trip
computer controls. After
approximately four seconds, the trip
computer will enter zone setting
mode. Zone setting mode is
indicated when the display lights the
“ZONE”indicator.
5. Release both controls.
Subsequent pressing of either control will increment the zone. Press the
control repeatedly until the correct zone setting for your geographic
location is displayed on the trip computer.
6. To exit the zone setting mode and save the displayed zone in memory,
release both controls for greater than five seconds.
Compass calibration adjustment
Perform this adjustment in an open area free from steel structures and
high voltage lines.
For optimum calibration, turn off all electrical accessories (heater/air
conditioning, wipers, etc.) and make sure all vehicle doors are shut.
1. Locate the trip computer located in the overhead console.
1 2 3
4
5
6 7 8 9 101112 13 14 15
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Driver Controls
72
Page 129 of 312

Using the engine block heater (if equipped)
Use of an engine block heater is
strongly recommended if you live in
a region where temperatures reach
-10°F (-23°C) or below. For best
results, plug the heater in at least
three hours before starting the
vehicle. The heater can be plugged
in the night before starting the
vehicle. The plug for the block
heater is exposed in the front of the
vehicle, beneath the grille. Vehicles
equipped with a gasoline engine have the plug exposed on the driver
side of the vehicle; vehicles equipped with a Diesel engine have the plug
exposed on the passenger side of the vehicle.
To reduce the risk of electrical shock, do not use your heater
with ungrounded electrical systems or two-pronged (cheater)
adapters.
Guarding against exhaust fumes
Carbon monoxide is present in exhaust fumes. Take precautions to avoid
its dangerous effects.
If you smell exhaust fumes inside your vehicle, have your dealer
inspect your vehicle immediately. Do not drive if you smell
exhaust fumes.
Important ventilating information
If the engine is idling while the vehicle is stopped for a long period of
time, open the windows at least one inch (2.5 cm) or adjust the heating
or air conditioning to bring in fresh air.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
129
Page 198 of 312

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
31 15A* Clutch interlock switch (manual
transmissions only), Transmission
range sensor (automatic
transmissions only) then to
starter relay coil (all
transmissions), 4x4
32 5A* Radio (start)
33 15A* Front wiper
34 10A* Brake on-off switch
35 10A* Instrument cluster
36 10A* PCM Memory
37 15A* Horn
38 20A* Trailer tow park lamps
39 15A* Trailer tow back-up lamps
40 20A* Fuel pump
41 10A* Instrument cluster
42 15A* Delayed accessory
43 10A* Fog lamps
44—Not used
45 10A* Ignition switch Run/Start feed
46 10A* Left-hand lowbeam
47 10A* Right-hand lowbeam
48—Not used
101 30A** Trailer tow electric brake
102 30A** Door locks/Body security module
103 50A** Ignition switch (gasoline engine
only), FICM power (Diesel engine
only)
104 40A** Heated backlight
105 30A** Fuel heater (Diesel engine only)
106 30A** Front wiper main
107 40A** Front blower motor
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Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
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Page 199 of 312
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
108—Not used
109 30A** Heated seats
110 50A** Ignition switch
111 30A** 4WD/Shift on the fly
112 30A** Left-hand power seats
113 30A** Starter motor
114 30A** Right-hand power seats
115 20A** Trailer tow battery charge
116 30A** Ignition switch
601 30A CB*** Window motors, Moonroof
602 60A** 4WABS module
210—Not used
211—Backup lamps relay (Diesel engine
only)
212—Not used
301—Front blower motor relay
302—Powertrain Control Module (PCM)
relay
303—Fuel heater relay (Diesel engine
only)
304—Heated backlight relay
305—Trailer tow battery charge relay
306—Delayed accessory relay
307—Starter relay
* Mini Fuses ** Maxi Fuses ***Circuit Breaker
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
199
Page 212 of 312

When a wheel is installed, always remove any corrosion, dirt or
foreign materials present on the mounting surfaces of the wheel
or the surface of the front disc brake hub and rotor that contacts the
wheel. Installing wheels without correct metal-to-metal contact at the
wheel mounting surfaces can cause the wheel nuts to loosen and the
wheel to come off while the vehicle is in motion, resulting in loss of
control.
JUMP STARTING YOUR VEHICLE
The gases around the battery can explode if exposed to flames,
sparks, or lit cigarettes. An explosion could result in injury or
vehicle damage.
Batteries contain sulfuric acid which can burn skin, eyes and
clothing, if contacted.
Do not attempt to push-start your vehicle. Automatic
transmissions do not have push-start capability; doing so may
damage the catalytic converter.
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 any electrical
surges. Turn all other accessories off.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
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Page 303 of 312
Splash guards
Step bars
Tonneau covers
Truck caps
Wheels
Interior style
Cell phone holders
Consoles
Electrochromatic compass/temperature interior mirrors
Floor mats
Interior trim kits
Leather wrapped steering wheels
Scuff plates
Speed control
Lifestyle
Bedliners and bedmats
Bed tents
Bike racks
Cargo organization and management
Diamond plate accessories
Engine block heaters and blankets
Rear seat entertainment systems
Toolboxes
Towing mirrors
TracRac and accessories
Trailer hitches, wiring harnesses and accessories
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Accessories
303