How to Install a Prius Headlight Lightbulb

On the passenger side the wire tab that secures the bulb can be tied off with string or tape to prevent it from interfering with bulb installation. Gravity tends to cause it to swing closed and interfere with bulb installation. The black weather guard and bulb can be removed while connected. They must be reinstalled separately. First bulb. Then wire tab locked in place. Then rubber boot. Then dielectric grease. Then electrical connection. Then fuse cover (right side) or vent tube (left side).