Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
The problem you are having is a known concern and GM has released a service bulletin dealing with this. The first thing that is going to need to be done is the computer system is going to need to be scanned to determine what the fault codes and or codes are that should be setting and those addressed from there. I have enclosed the service bulletin in the link below for your review. Copy and paste the link to your browser to open and view them. At the time of printing the problem was under investigation, I would contact the dealer and see if the cause has been determined .https://dl.dropboxusercontent.com/u/104923897/Sun%20roof%20Mar%2013.pdfhttps://dl.dropboxusercontent.com/u/104923897/Sun%20roof%20Mar%2013.pdf