How do you change the headlight switch on a 2004 Nissan Xterra?

To change the headlight switch on a 2004 Nissan Xterra, first disconnect the negative battery terminal to ensure safety. Remove the steering column cover by unscrewing the screws and gently prying it off. Next, disconnect the wiring harness from the old headlight switch and remove it by unscrewing any screws securing it in place. Install the new switch by reversing the steps, reconnecting the wiring, and reattaching the steering column cover.