FORD 2004 F-550 v.3 - Manual (Page 45)

MAP LAMPS (IF EQUIPPED)
With trip computer
Without trip computer
To turn on the map lamps, press the control next to each lamp.
BULBS
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
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 and an
“E” for Europe to assure 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.
2004 F250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA English (fus)
Lights
45