I just recently purchased a 2018 Cadillac CTS from a Cadillac dealer. I have the extended warranty for it. The issue I’m having is when the car sits out in the baking sun, the interior gets real hot. When I go to start the car and use it the complete dashboard will not display anything. Also, the windows don’t work either. The Cadillac dealer is going to look at it, but I am wondering if someone else had the same issue and what was the fix they did? I would like to find out something before Cadillac probably will start to tear the whole dash apart. I’ll take any info that someone would have. Thanks, Stuart.