If you’ve ever had a headlight bulb go out on traditional halogen headlights, it’s usually as simple as changing out your bulb with a new one. With HID’s, you can have a HID bulb go out and may need to be replaced as well. However with HID headlights, there are several components that make up the HID headlight system which can fail and require replacement.

Pretty much every 4th generation Toyota 4Runner owner will find themselves with climate control bulbs that go out. I’ve provided some diagrams together showing what part numbers would be needed depending on whether you have the SR5/Sport or Limited model, as well as what bulbs power what on the center dash. You may choose to replace the bulbs whole (bulb with bulb holder) or you might want to save some money by wiring up bulbs to the existing bulb holders. I’ve shown both methods below as well as the products you’ll need whichever way you choose to proceed with.