How do you replace the highbeam headlight bulb on a 2002 Chevy Trailblazer?
You will need to pop out the center grill and then on each headlight unit there are two tabs (one on each side of unit) that you need to pull up. After that carefully pull out the headlight unit and remove the wires that are for the lights. To change the bulb remove the large rubber cap and twist the bulb holder to remove the bulb from headlight unit.
