Cadillac Repair: cadillac cts headlight, cadillac cts, headlight assembly

Question
I have moisture in one of my headlights and possibly that's why the bulb failed. I went to have it replaced and when they did they said the light won't work, possibly an electrical issue, they don't know the source.. I had no time to wait for them to look, especially if they have no idea what it is. Do you know what might the problem be? They also said to drill a hole on the bottom of the headlight to get rid of the water.. is that a good way of solving that issue?

Answer
Hello,

The reason there is moisture is because you already have a hole in the headlight, possibly from a stone hitting it and they are telling you to drill another hole? What goofs!

The only way you can fix this is replace the headlight assembly.

If you look on the web for new after market headlights you might find a good deal. The dealer wants $200 each for my Suburban headlights. I bought new after market for $38 ea.

As far as your bulb not working, could be corroded socket, but if I were you, I would take the car to someone more competent.