Page 93 of 448

Examples of unacceptable moisture (usually caused by a lamp water
leak) are:
• Water puddle inside the lamp
• Large water droplets, drip marks or streaks present on the interior of
the lens
Take your vehicle to a dealer for service if any of the above conditions of
unacceptable moisture are present.
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
Function Number
of bulbs Trade number
Headlamps 2 H13/9008
Park/Turn lamp 2 3157NA
Sidemarker 2 W5W
Tail/stop/turn/sidemarker (pick-up only) 2 3157
Tail/stop/turn/sidemarker (chassis cabs
only; if equipped) 2 3157
Back-up (pick-ups only) 2 921
Back-up (chassis cabs only) 2 3157
High-mount brake lamp 1 912
Fog lamp 2 9145
License plate lamp 2 194
Cargo lamp 2 912
Map lamp 2 12V6W
Dome/reading lamps 3 578
Interior visor lamp (if equipped) 4 194
Mirror turn signal 2 2825
Mirror clearance lamp 2 2825
*Front clearance lamps (2) and front
identification lamps (3) 5 194
*Rear fender clearance 4 LED**
*Rear identification 3 193**
To replace all instrument panel lights - see your authorized dealer
* Dual rear wheels, or if equipped.
** See your authorized dealer to replace the lamp assembly. Lights
93
2012 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)
Page 97 of 448

Replacing front clearance and identification lamp bulbs
(if equipped)
1. Make sure the headlamps are off.
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 fog lamp bulbs (if equipped)
1. Make sure the headlamps are off.
2. Remove the bulb socket from the
fog lamp by turning it
counterclockwise.
3. Disconnect the electrical
connector from the fog lamp 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. Lights
97
2012 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)
Page 444 of 448

Engine oil ..................................375
checking and adding ..............375
dipstick ....................................375
filter, specifications ........376, 410
recommendations ...................376
refill capacities ........................411
Event data recording ....................9
Exhaust fumes ..........................269
F
Fail safe cooling ........................384
Fleet MyKey programming ......129
Flexible Fuel Vehicle (FFV) ....386
Floor mats .........................122–123
Fluid capacities .........................411
Fog lamps ....................................88
Four-Wheel Drive vehicles .......301
driving off road .......................307
electronic shift ................301, 306
indicator light .........................302
lever operated shift ................303
manual locking hubs ..............301
preparing to drive your
vehicle .....................................285
Fuel ............................................386
calculating fuel
economy ............................25, 393
cap ...........................................389
capacity ...................................411
choosing the right fuel ...........390
detergent in fuel .....................392
filling your vehicle
with fuel ..................386, 389, 393
filter, specifications ................386
fuel pump shut-off ..................321
improving fuel economy ........393
octane rating ...................391, 415
quality ......................................391 running out of fuel .................392
safety information relating
to automotive fuels ................386
Fuel - flex fuel vehicle
(FFV) .........................386, 390–391
Fuses ..................................321–322
G
Garage door opener ..................116
Gas cap (see Fuel cap) ............389
Gas mileage
(see Fuel economy) .................393
Gauges .........................................21
H
Hazard flashers .........................320
Headlamps ...................................87
aiming ........................................90
autolamp system .......................87
daytime running lights .............89
flash to pass ..............................88
high beam .................................88
replacing bulbs .........................94
turning on and off ....................87
Heating
heating and air conditioning
system .................................78, 81
Hill descent mode .....................281
Hill start assist ..........................294
Hood ..........................................371
I
Ignition ...............................265, 415
Illuminated visor mirror .............99Index
444
2012 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)
Page 445 of 448

Infant seats
(see Safety seats) .....................199
Inspection/maintenance (I/M)
testing ........................................398
Instrument panel
cleaning ...........................365–366
cluster ........................................14
lighting up panel and
interior .......................................89
J
Jack ............................................331
positioning ...............................331
storage .....................................331
Jump-starting your vehicle ......348
K
Keyless entry system
autolock ...................................137
keypad .....................................148
locking and unlocking doors ..149
programming entry code .......148
Keys ...................................129, 150
positions of the ignition .........265
L
Lamps
autolamp system .......................87
daytime running light ...............89
fog lamps ...................................88
headlamps .................................87
headlamps, flash to pass ..........88
instrument panel, dimming .....89
interior lamps ...........................92
replacing bulbs ...................94–97
LATCH anchors .........................206
Lights, warning and indicator ....14 anti-lock brakes (ABS) ..........272
Loading instructions .................251
Load limits .................................244
Locks
autolock ...................................137
childproof ................................141
doors ........................................137
Lug nuts ....................................347
Lumbar support, seats .....160–161
M
Manual transmission
fluid capacities ........................411
Message center ...............22–23, 39
english/metric button ...............27
system check button ................27
warning messages ...............29, 48
Mirrors ...............................105–106
automatic dimming rearview
mirror ......................................105
fold away .........................107–109
heated ........................................81
programmable memory ..........143
side view mirrors (power) .....106
signal .......................................109
Moon roof ..................................115
Motorcraft parts ......................410
MyKey ........................................129
N
Navigation system .......................77
O
Octane rating ............................391
Oil (see Engine oil) ..................375 Index
445
2012 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)