I took mine in when it was messing up and drove it in the service bay did not shut it off because then it would be fine. Got the service to see the issue then they dug into it. They replaced the unit after checking all the issues out. The bigger fix from this was they pulled the rat fur off the trunk lid and did ther tests they found there was two poor ground connections, this fixed my bigger concern of the top and trunk failing. This has solved all my issues except today I found antifreeze on the lower left of the rad but that is another issue well covered. going for a new rad on Thursday.