Using The Right Bulbs; Replacing Interior Bulbs; Replacing Exterior Bulbs - Ford 2011 Focus Owner's Manual

Examples of acceptable condensation are:
• Presence of thin mist (no streaks, drip marks or droplets)
• Fine mist covers less than 50% of the lens
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.

Using the right bulbs

Replacement bulbs are specified in the chart below. Headlamp bulbs
must be marked with an authorized "D.O.T." for North America to ensure
lamp performance, light brightness and pattern and safe visibility. The
correct bulbs will not damage the lamp assembly or void the lamp
assembly warranty and will provide quality bulb burn time.
Function
Headlamps
Park and turn lamp (front)
Side marker lamp (front)
Fog lamps (if equipped)
Stop/turn and tail lamps
Backup lamp
License plate lamp
* High-mount brake lamp
* To replace these lamps - see your authorized dealer.
To replace all instrument panel lights - see your authorized dealer

Replacing interior bulbs

Check the operation of all bulbs frequently.

Replacing exterior bulbs

Check the operation of all the bulbs frequently.
2011 Focus (foc)
Owners Guide, 1st Printing
USA (fus)
Lights
Trade number
H13
3457 NAK or 3457AK
168
H11 LL
3057K
921
C5W L
LED
51