2006 Honda Accord Owner's Manual - Page 214

Lights Headlight Aiming The headlights were properly aimed when your vehicle was new. If you regularly carry heavy items in the trunk or pull a trailer, readjustment may be required. Adjustments should be performed by your dealer or other qualified mechanic. Replacing a Headlight Bulb Your vehicle has two bulbs on each side, four in total. Make sure you are replacing the bulb that is burned out. Your vehicle uses halogen headlight bulbs. When replacing a bulb, handle it by its plastic case 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. 218