First, you should disable the
Air Bags to stop them from becoming a hazard if you service or repair the headlamp switch. Get rid of the negative
Battery Cable, then give the system capacitor time to discharge (about two minutes). Remove the upper left side air outlet control bezel first. Following that, take off the two screws holding the headlamp switch to the air outlet bezel from the back. Remove the headlamp switch from the outlet on the back of the air outlet bezel at last.