FORD 2010 Focus v.1 - Manual (Page 50)

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 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 Trade number
Headlamps H13
Park and turn lamp (front) 3457 NAK or 3457AK
Side marker lamp (front) 168
Fog lamps (if equipped) H11 LL
Stop/turn and tail lamps 3057K
Backup lamp 921
License plate lamp C5W L
* High-mount brake lamp LED
* 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.
Lights
50
2010 Focus (foc)
Owners Guide, 1st Printing
USA (fus)