Not a real fun job. You have to remove the inner wheel well liner. With a flash light you will see the bottom of the headlight fixture. You will see (2) round knobby looking things about 3" in diameter. the one closest to the bumper is the HI beam bulb and the one closest to the wheel is the low beam. All you have to do is twist (unscrew) the knobby looking thingy and pull down and you will see it is a fancy socket containing the bulb. When installing the new bulb don't touch the glass.
FWI the low beam is a HID system, the Hi beam is just a standard bulb. With your flashlight you will see the balast for the low beam mounted on the bottom. (these are kinda pricey hope you don't have to change them)
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