Quick question. The small parking light (assuming they're halogens) on above my xenons on my 5.5th gen on the left side sometimes comes on and sometimes doesn't. I have the factory xenons. I can't really reproduce when it does vs doesn't. In the morning it seems to come on fine though. Anyone else experience that?

 

Check the bulb connection. It may be loose or something. Also, hook up a DMM to see the voltage. It should read 12V or so. If not, you may have a short in the wire. I would start from here, or maybe put in a new bulb. The old bulb may be going bad.

 

I slammed the hood shut and the light came back on.

 

Loose connection most likely.

 

Maybe the bulb is loose? Try taking it out and putting it back in, or just get a new one.

 

If you check the bulb the wires that are exposed sometimes get bent out when installing. Check to see if it is and bend them straight. If that isn't it check the voltage to see if you've got a short.

 

Now my front right fog light won't come on, though the lense is somewhat cracked. Hmm