Toyota 99132-21210 Bulb

Halogen headlights consist of inner high-beam bulbs and outer low-beam bulbs, with the outer bulbs also illuminated when the high-beam bulbs are activated. To replace a low-beam bulb on a Lexus model, first disconnect the headlight harness connector from the short pigtail lead leading to the light bulb holder, then remove the rubber weather cover from the back of the headlight housing. Next, disconnect the electrical connector from the bulb holder assembly by depressing the release tab and pulling off the connector. Grasp the bulb holder securely and rotate it counterclockwise to remove it from the housing, a process that also applies to the fog lamp bulb holder. Without touching the bulb glass with bare fingers, insert the new bulb assembly into the headlight housing, twist it clockwise to lock it in place, and then plug in the electrical connector. Finally, if the low-beam bulb was replaced, reinstall the round rubber cover over it. High Intensity Discharge (HID) headlights are specific to Lexus models.

Installation is the reverse of removal.

Reach behind the headlight assembly and unplug the electrical connector.