Robert took it to the local shop and they couldn't find any codes. I also found the instructions from the other forum on how to do the self check and nothing showed up there either. So far, so good. The error messages have not returned
Maybe the car was just having a bad day
We'll be taking it to the show in Port Charlotte tomorrow. I've got my AAA up to date and it won't be the first time we rode home in the cab of a tow truck with a corvette up on the bed