Ok, call me a retard, [sm=smiley24.gif] but up on the head liner there are two round thingies. I assume one is for the OnStar mic. What is the other one for? I'd search, but I don't know what I'm searching for.

Thanks,

Jockey

 

I had the same question.

It is a small grill that coversa small fan and temp sensor for the climate control system. So you set it on 70, it tries to stay on 70.

Eventually the fan in there will start making noise. Mine did as soon as I got it. Cost just over $100 at the dealer to replace. (hopefully you will not have the same issue)

 

Marauder, Thanks for the info. Now I'm in the know.