Doug, you may have bad ground connections. I found one last week that had broken off. Most likely due to over torquing the aluminum stud at the factory. I also had air suspension failure, hood open message, low cooling fluid message, right headlight out.. Repairing this ground fixed all problems
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That's exactly what happened to my loaner - identical symptoms. They said it was a bad ground. It started as occasional glitches and then eventually failed hard and I got an Enterprise.
These symptoms are a bit different, so maybe a different ground point???
FWIW the car is behaving today. Here we go...