Hopefully someone has an answer for me.

First off, my heat/ac works fine, as long as it is not set on setting 5 or defrost. I have a few buddies with the same problem. Any ideas?

Also, several of the lights on the steering wheel controls have gone out. Not sore what the deal is.

This is on the 2005 2500 HD.

Any help would be greatly appreciated.

Thanks, Josh