Q: Dashboard blacks out without warning

这听起来很可怕。你遇到的问题并不是很常见，但我会试着看看有吗？技术服务公告regarding the issue and the experts at Cadillac are trying to find a solution. The problem can be in a shared fused power source, the body control module which sends commands to various accessories or a faulted ground connection somewhere. Being only a few years old, your issue may best be handled at the dealer since they should have better knowledge of the vehicle’s electronics. If you are unable to get help from them, then try another dealer or raise the circumstance up with customer service to see if they’ll be able to further assist.