I was checking my headlights yesterday and noticed that the inside set of headlights was not working (not the outside Xenon headlight set). No matter what I did, low beam/high beam/fog lights on-off etc., the inner set of headlights would not light up.

The obvious answer could be burned out bulbs, but if this is the case, how do you remove & replace these bulbs? I tried twisting the bulb housing under the hood, but that did not work (could be stuck). There is nowhere in the owner's manual referring to changing these bulbs and I did not want to accidently break anything (since it would probably cost a few hundred $$$ to fix!).

Any help as to what is wrong and how to fix would be appreciated.