How do you take apart the headlight assembly in a 2000 GMC Jimmy?

Answer 1

== == This also applies to the 2001 GMC Jimmy.

The headlight assembly is held in place as one entire unit.

In between the battery and the headlight assembly unit are two tabs that when pulled upward (by hand) will release the housing from the vehicle. (VERY EASY once you know).

The headlight assembly is now held to the vehicle ONLY by wires, so don't let it drop and break. It's now just a matter of bulb replacement from the backside of the headlight assembly. Do this by turning the bulb in it's socket until the little catches line up with the open slots and poll the light bulb out. Do NOT touch the glass portion of the new bulb you are installing if it is a halogen bulb. Doing so will severely shorten the life of the bulb since contaminants on your hands cause the bulb to quickly overheat and die.

Once the bulb is changed and plugged back into the wires, put the headlight assembly back in place by aligning it and poke the two plastic pegs on the back of the headlight assembly into the two square holes in the front of the vehicle. Now slide the two tabs you originally pulled up to release the headlight assembly, back down into place making sure the "slots" at the bottom of sliding tabs catch the square plastic pegs on the back of the headlight assembly.

Do NOT pound the sliding tabs back down. Doing so will break the square pegs off of the back of the headlight assembly and pounding is not necessary if you have them properly in the square holes and all of the way in. Thank you to whoever first wrote this answer and to WIKI for making it available.