How do you change your rear parking light on a 1988 xj6

Identify the blown bulb. Note that if a headlight bulb has blown, the dip beam is on the outside and the high beam is on the inside. Turn off the ignition switch and light switches.

Open the hood and replace any blown headlight bulbs. Press the plastic spring clips and remove the bulb holder from the assembly. Pull the bulb out of the bulb holder and replace it with a new bulb. It only fits one way. Be sure not to touch the bulb's glass. Replace any parking lights at the same time, they are in the headlamp unit too.