I own a 2008 CTS and on occasion I have lost the sound of all my warning alarms, directional’s etc and half of my stereo speakers. The dealer uploaded a CPU change but the problem occurred again. If you turn off the car and let it sit a while it reboots and everything works. How do I stop this from happening?


I found out there is a technical bulletin which corrects this problem

 

If car is not out of warranty by miles. Take car to the dealer request rental and they correct condition. Discuss condition with service manager and Cadillac customer assistance.