Hi everyone, this is my first post. I just purchased a 2012 CTS AWD coupe very nice car. When I'm making a sharp turn I get this chatter type noise in the AWD system. Is this an issue or is this normal. I've had other AWD vehicle that never did this. It has 75,000 miles. Has anyone had this problem before?

 

I guess there is not a lot of people on this forum that know about this issue.