Car Will Not Start problems of the 2011 Cadillac SRX

My wife was going to leave the house yesterday (7/29/2016) morning to start her day. She called to notify me that the Cadillac would not start. The car was parked in the driveway. Only the interior lights would come on. By the time I got home that afternoon the car would start but anything electronic was going crazy. The dash lights, radio, warning systems were all flickering on and off. I eventually disconnected the battery because the car would not stop powering up the dash and radio. Being in the business that I am in,I knew there was most likely a moisture problem. So today after doing a little searching on the internet and found that this vehicle has a problem with sunroof leakage. I then go to check under my floor mats for water. Carpet was wet. I then proceeded to pull back the carpet and foam. I found water everywhere. I sucked up about 2 gallons from the front and back seat areas. Without pulling up the carpet you would have never know there was water in the car. I would assume this is also the reason my lift gate went out about 6 months ago. Possibly the cause of my windows being very slow to rise. Because it looks like much of the wiring runs along the sides of the car under the carpet. I am very disappointed with the performance of the this car. My wife and I made it to place in life where we finally decided to splurge a little on a luxury car and this is what we got. I understand things breaking down and making repair,s but this is apparently a flaw in their sunroof design and gm has to know about it . This car has 48000 miles.