I'm new here and just reading early in the thread so maybe this was answered for you already. Those strips along the roof actually had a recall issued on them. I took my car in for servicing last summer and the dealer mentioned it to me. The ordered the parts and called me when the new strips were in. It only took them about an hour to replace them and I haven't had any cracking or rippling since. Talk to your dealer if you haven't done so already.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.