These are some of the symbols you may see on your vehicle.
Vehicle Symbol Glossary
Safety Alert
See Owner’s Guide
Fasten Safety BeltAir Bag-Front
Air Bag-SideChild Seat
Child Seat Installation
WarningChild Seat Lower
Anchor
Child Seat Tether
AnchorBrake System
Anti-Lock Brake SystemBrake Fluid -
Non-Petroleum Based
Traction ControlAdvanceTrac
Master Lighting SwitchHazard Warning Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
2003 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Introduction
10
Foglamp control (if equipped)
The headlamp control also operates
the foglamps. The foglamps can be
turned on only when the headlamp
control is in the
,or
position and the high beams are not
turned on.
Pull headlamp control towards you
to turn foglamps on. The foglamp
indicator light
will illuminate when the switch is pulled and the
parklamps are on.
Daytime running lamps (DRL) (if equipped)
Turns the headlamps on with a reduced output.
To activate:
•the ignition must be in the ON position and
•the headlamp control is in the OFF, parking lamp or autolamp
position.
Always remember to turn on your headlamps at dusk or during
inclement weather. The Daytime Running Lamp (DRL) system
does not activate with your tail lamps and generally may not provide
adequate lighting during these conditions. Failure to activate your
headlamps under these conditions may result in a collision.
High beams
Push the lever toward the
instrument panel to activate. Pull
the lever towards you to deactivate.
2003 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
39
Function Number of
bulbsTrade number
Headlamps (aerodynamic) 2 9007
Headlamps (sealed beam) 2 H6054
Park/turn 2 3157
Sidemarker 2 194
Tail/stop/turn/sidemarker 2 3157 K
Backup 2 3156K
High-mount stoplamp 1 921
Foglamp 2 899
License plate lamp 2 168
Cargo lamp 2 906
Roofmarker 5 194
Rear fender clearance* 4
(a)
Interior visor lamp (if equipped) 4 194
Rear identification 3 194
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your dealer
(a)Replace entire lamp assembly; bulb is not serviceable.
* Dual rear wheels or if equipped.
Replacing headlamp bulbs (aerodynamic)
1. Make sure that the headlamp control is in the OFF position open the
hood.
2. Disconnect the electrical connector from the bulb by pulling rearward.
3. Remove bulb retainer ring by
turning it counterclockwise, then
slide the ring off the plastic base
4. Pull bulb out of headlamp
assembly.
2003 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
43
Replacing roof marker bulbs
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the screw and lens from
the lamp assembly.
3. Pull the bulb straight out of the
socket.
Replacing foglamp bulbs (if equipped)
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the bulb socket from the
foglamp by turning
counterclockwise.
3. Disconnect the electrical connector from the foglamp bulb.
Install the new bulb(s) in reverse order.
Replacing license plate lamp bulbs
The license plate bulbs are located
behind the rear bumper. To change
the license plate lamp bulbs:
1. Reach behind the rear bumper to
locate the bulb.
2. Twist the bulb socket
counterclockwise and carefully pull
to remove it from the lamp
assembly.
3. Pull out the old bulb from the
socket and push in the new bulb.
4. Install the bulb socket in lamp assembly by turning it clockwise.
2003 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
47
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
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
108—Not used
109 30A** Heated seats
110 50A** Ignition switch
111 30A** 4WD/Shift on the fly
112 30A** Left-hand power seats
2003 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
180
Travel equipment
Adjustable Towing System
Auto headlamp system with Daytime Running Lights (DRL)
Battery Warmer
Bed Tent
Box Aluminum Rack cargo storage systems (Trac Rac)
Daytime running lights (DRL)
Electrochromic inside mirror with compass
Electrochromic inside mirror with compass and temperature display
Fog lights
Highway safety and first aid kit
Off road lights
Pickup box rails
ROC2 hitch mounted bike courier
Running boards and tubular running bars
Running boards diamond plate
Seatback organizer
Speed control
Towing mirrors
Trailer hitch, Class IV &
Trailer hitch bars and balls
Trailer hitch mounted bike carrier
Trailer hitch wiring adaptor
Trailer wiring harness
Trailgate table
Protection and appearance equipment
Air bag anti-theft locks
All weather vinyl floor mats
Bed mat
Bed hooks
Bed mats
2003 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Accessories
271
filter, specifications ........220, 253
recommendations ...................220
refill capacities ........................254
specifications ..................257, 260
Exhaust fumes ..........................114
F
Fail safe cooling ........................227
Fluid capacities .........................254
Foglamps .....................................39
Four-Wheel Drive vehicles .......129
description ..............................133
driving off road .......................135
electronic shift ................129, 133
indicator light .........................130
lever operated shift ................130
manual locking hubs ..............129
preparing to drive your
vehicle .....................................117
Fuel ............................................229
calculating fuel economy .......233
cap ...........................................231
capacity ...................................254
choosing the right fuel ...........231
comparisons with EPA fuel
economy estimates .................236
detergent in fuel .....................232
filling your vehicle
with fuel ..................229, 231, 233
filter, specifications ........233, 253
fuel pump shut-off switch .....175
improving fuel economy ........233
octane rating ...................232, 260
quality ......................................232
running out of fuel .................232
safety information relating to
automotive fuels .....................229
Fuel pump shut-off switch .......175
Fuses ..................................176–177G
Garage door opener ....................50
Gas cap (see Fuel cap) ............231
Gas mileage
(see Fuel economy) .................233
Gauges .........................................15
transmission fluid
temperature gauge ...................19
GAWR
(Gross Axle Weight Rating) .....145
calculating ...............................146
definition .................................145
driving with a heavy load ......145
location ....................................145
GVWR (Gross Vehicle Weight
Rating) .......................................145
calculating .......................145–146
definition .................................145
driving with a heavy load ......145
location ....................................145
H
Hazard flashers .........................175
Headlamps ...................................38
aiming ........................................40
autolamp system .......................38
daytime running lights .............39
flash to pass ..............................40
high beam .................................39
replacing bulbs ...................43–44
turning on and off ....................38
Heating
heating and air conditioning
system .................................35–36
Hood ..........................................216
I
Ignition ...............................110, 260
2003 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
276
Infant seats
(see Safety seats) .....................102
Inspection/maintenance (I/M)
testing ........................................238
Instrument panel
cleaning ...................................211
cluster ........................................12
lighting up panel and
interior .......................................40
J
Jump-starting your vehicle ......192
K
Keyless entry system
autolock .....................................71
Keys
positions of the ignition .........110
L
Lamps
autolamp system .......................38
bulb replacement
specifications chart ..................42
cargo lamps ...............................40
daytime running light ...............39
fog lamps ...................................39
headlamps .................................38
headlamps, flash to pass ..........40
instrument panel, dimming .....40
interior lamps .....................41–42
replacing bulbs ...................42–47
Lane change indicator
(see Turn signal) ........................41
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........115
speed control ............................58
Load limits .................................145GAWR ......................................145
GVWR ......................................145
trailer towing ..........................145
Loading instructions .................146
Locks
autolock .....................................71
childproof ..................................66
Lubricant specifications ...257, 260
Lumbar support, seats ...............76
M
Manual transmission .................124
fluid capacities ........................254
lubricant specifications ..........260
reverse .....................................126
Message center ...........................59
english/metric button ...............60
menu button .............................60
Mirrors .........................................50
fold away ...................................55
heated ........................................54
side view mirrors (power) .......53
Moon roof ....................................51
Motorcraft parts ................233, 253
O
Octane rating ............................232
Oil (see Engine oil) ..................218
Overdrive .....................................49
P
Parking brake ............................116
Parts (see Motorcraft parts) ....253
Pedals (see Power adjustable
foot pedals) .................................56
Power adjustable foot pedals .....56
2003 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
277