How do you replace a fog light bulb in a 2005 Subaru?

You will have to access the fog light bulb from below the vehicle. Remove the plastic clips from the wheel well cover extension that is below the fog light. Once the clips are out and the plastic cover is pull down, you should be able to see the back of the fog light. You can try to replace the fog light bulb now or remove the two 10mm bolts and slide the fog light assemble out through the front of the bumper. Turn the cover of the rear of the fog light and replace light.