How to remove the xenon headlight bulb on a 2018 GMC Terrain. This is applicable for the 2018 - 2022 GMC Terrain. See where to unplug the the bulb and how to unclip the metal bracket behind the xenon light to disengage the bulb and pull it out. All how-to videos for this Terrain are available here: https://www.carcarekiosk.com/videos/GMC/Terrain/2018