How do you change burned out headlights on a 1991 Honda Accord?
A large (appr. 2 inch) plastic ring holds each bulb in place. There is little room to get your hands in there, and the retainers tend to get gummed up and dificult to turn.
If you can get a large set of groove-joint pliers in there, that will help. Turn about 1/4 turn (there should be arrows indicating direction). Pull out of the headlight housing and replace with new bulb. You may find it easier to just remove the battery or power steering reservoir first.
Open the trunk and remove the back plastic piece (if covered) from the backside of the taillight...locate the burned out bulb by turning on your headlights...when you find the bulb that is burned out, twist the bulb by grabbing it at the plastic end and turn it counter-clockwise then pull it straight out...now twist the bulb counter clockwise out of the plastic housing and replace it with a brand new light bulb