If you're replacing a right-side bulb on a truck model, remove the air filter housing. For a left-side bulb replacement on a truck model equipped with an auxiliary battery, remove the battery. Next, remove the dust boot and disconnect the headlight bulb electrical connector. Rotate the bulb counterclockwise to remove it from the housing, ensuring to twist the dust boot to unlock and remove it, and depress the tab to disconnect the electrical connector before turning the bulb counterclockwise. Installation is the reverse of removal.