
Replacing headlamp bulbs (sealed beam)
1. Make sure that the headlamp control is in the OFF position and open
the hood.
2. Remove the four screws from the
top and bottom front of the
headlamp assembly.
3. Press the retaining clip at the top
of the headlamp assembly while
pulling the assembly straight out.
If removing the lamp is difficult,
removing the four screws along
the top of the grill will help
provide more clearance.
4. Disconnect the electrical
connector from the park lamp/bezel.
5. Remove the four screws and the
headlamp retaining ring from
headlamp.
Install the new bulb(s) in reverse order.
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
49

Replacing park/turn/sidemarker bulbs (sealed beam)
1. Make sure that the headlamp control is in the OFF position and open
the hood.
2. Remove the four screws from the
top and bottom front of the
headlamp assembly.
3. Press the retaining clip at the top
of the headlamp assembly while
pulling the assembly straight out.
If removing the lamp is difficult,
removing the four screws along
the top of the grill will help
provide more clearance.
4. Remove the bulb assembly, (1)
sidemarker or (2), park/turn by
turning it counterclockwise.
5. Pull the old bulb out from the
socket.
Install the new bulb(s) in reverse order.
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
50

Replacing tail lamp/turn/backup lamp bulbs — F–250/F–350 only
1. Make sure the headlamp switch is
in the OFF position and then open
the tailgate to expose the lamp
assemblies.
2. Remove the two bolts from the
tail lamp assembly and carefully pull
the lamp assembly from the tailgate
pillar by releasing the two retaining
tabs.
3. Rotate the bulb socket counterclockwise and remove from lamp
assembly.
4. Pull the bulb straight out of the socket.
Install the new bulb(s) in reverse order.
Replacing brake/tail/backup lamp bulbs — F–450/F–550 only
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the four screws and the
lamp lens from lamp assembly.
3. Carefully pull the bulb straight
out of the socket and push in the
new bulb.
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
51

Replacing cargo lamp and high-mount brakelamp bulbs
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the two screws and lamp
assembly from vehicle as wiring
permits.
3. Remove the bulb socket by
rotating counterclockwise.
4. Pull the bulb straight out of the
socket.
Front clearance and identification lamp 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.
Install the bulb(s) in reverse order.
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.
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
52

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.
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
53

A
Accessory delay ..........................58
Air cleaner filter .......283–284, 286
Air conditioning ..........................36
Airbag supplemental restraint
system ................................108–109
and child safety seats ............110
description ..............................109
disposal ....................................112
driver airbag ............................111
indicator light .........................112
operation .................................111
passenger airbag .....................111
passenger deactivation
switch ......................................113
Ambulance packages ....................8
Antifreeze
(see Engine coolant) ................260
Anti-lock brake system
(see Brakes) ......................172–173
Audio system
(see Radio) ................20, 22, 25, 28
Automatic transmission ............176
driving an automatic
overdrive .................................177
fluid, adding ............................279
fluid, checking ........................279
fluid, refill capacities ..............287
Auxiliary power point .................56
Axle
lubricant specifications ..........290
refill capacities ........................287
traction lok ..............................175
B
Battery .......................................258
acid, treating emergencies .....258jumping a disabled battery ....226
maintenance-free ....................258
replacement, specifications ...286
servicing ..................................258
BeltMinder .................................104
Brakes ........................................172
anti-lock ...........................172–173
anti-lock brake system (ABS)
warning light ...........................173
fluid, checking and adding ....278
fluid, refill capacities ..............287
fluid, specifications .................290
lubricant specifications ..........290
parking ....................................173
shift interlock ..........................176
trailer .......................................159
Break-in period .............................5
Bulbs ............................................45
C
Capacities for refilling fluids ....287
Cassette tape player .......20, 22, 25
Cell phone use ..............................7
Child safety restraints ..............118
child safety belts ....................118
Child safety seats ......................121
attaching with tether straps ..124
in front seat ............................122
in rear seat ..............................122
Cleaning your vehicle
engine compartment ..............242
instrument panel ....................244
interior .....................................245
interior trim ............................245
plastic parts ............................244
safety belts ..............................245
washing ....................................241
waxing .....................................241
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
305

Exhaust fumes ..........................171
F
Fail safe cooling ........................265
Fluid capacities .........................287
Foglamps .....................................40
Four-Wheel Drive vehicles .......184
description ..............................189
driving off road .......................191
electronic shift ................185, 189
indicator light .........................186
lever operated shift ................186
manual locking hubs ..............185
preparing to drive your
vehicle .....................................175
Fuel ............................................266
calculating fuel
economy ............................72, 271
cap ...........................................269
capacity ...................................287
choosing the right fuel ...........270
comparisons with EPA fuel
economy estimates .................274
detergent in fuel .....................271
filling your vehicle with
fuel ...........................266, 269, 271
filter, specifications ........266, 286
fuel pump shut-off switch .....204
improving fuel economy ........271
octane rating ...................270, 293
quality ......................................270
running out of fuel .................271
safety information relating to
automotive fuels .....................266
Fuel pump shut-off switch .......204
Fuses ..................................205–206
G
Gas cap (see Fuel cap) ............269Gas mileage
(see Fuel economy) .................271
Gauges .........................................15
transmission fluid
temperature gauge ...................20
H
Hazard flashers .........................204
Head restraints ...........................90
Headlamps ...................................39
aiming ..................................41, 43
autolamp system .......................39
daytime running lights .............40
flash to pass ..............................41
high beam .................................41
replacing bulbs ...................47–50
turning on and off ....................39
Heating
heating and air conditioning
system ...........................33–34, 36
Hood ..........................................250
I
Ignition ...............................167, 293
Infant seats
(see Safety seats) .....................121
Inspection/maintenance (I/M)
testing ........................................276
Instrument panel
cleaning ...................................244
cluster ........................................12
lighting up panel and
interior .......................................41
J
Jump-starting your vehicle ......226
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
307

K
Keyless entry system .................86
Keys
positions of the ignition .........167
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 ...................45–53
Lane change indicator
(see Turn signal) ........................44
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........173
speed control ............................63
Load limits .................................148
Loading instructions .................155
Locks
childproof ..................................81
Lubricant specifications ...........290
Lug nuts ....................................225
Lumbar support, seats ...............95
M
Manual transmission .................180
fluid capacities ........................287
reverse .....................................181
Message center .....................68–70
english/metric button ...............74
system check button ................73
warning messages .....................75Mirrors .........................................55
automatic dimming rearview
mirror ........................................58
fold away ...................................60
heated ........................................59
side view mirrors (power) .......58
signal .........................................59
Moon roof ....................................66
Motorcraft parts ................266, 286
O
Octane rating ............................270
Oil (see Engine oil) ..................254
Overdrive .....................................55
P
Parking brake ............................173
Parts (see Motorcraft parts) ....286
Pedals (see Power adjustable
foot pedals) .................................61
Power adjustable foot pedals .....61
Power distribution box
(see Fuses) ...............................211
Power door locks ........................80
Power mirrors .............................58
Power point .................................56
Power steering ..........................174
fluid, checking and adding ....277
fluid, refill capacity ................287
fluid, specifications .................290
Power Windows ...........................57
Preparing to drive your
vehicle ........................................175
R
Radio ..........................20, 22, 25, 28
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
308