Honda 2004 Civic Sedan Owner's Manual page 156

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Headlight Aiming
The headlights were properly aimed
when your vehicle was new. If you
regularly carry heavy items in the
trunk, readjustment may be required.
Adjustments should be performed by
a Honda dealer or other qualified
mechanic.
Replacing a Headlight Bulb
Your vehicle has halogen headlight
bulb. Handle it by its steel base and
protect the glass from contact with
your skin or hard objects. If you
touch the glass, clean it with
denatured alcohol and a clean cloth.
NOTE: Halogen headlight bulbs get
very hot when lit. Oil, perspiration, or a
scratch on the glass can cause the bulb
to overheat and shatter.
1. If you need to change a headlight
bulb on the driver's side, remove
the power steering reservoir tank
by pulling it out of its holders.
Maintenance
Lights
153