I started my Volt today after charging (partially) at work (120v) and my check engine light was on. I connected to OnStar and they advised me of two error codes: P1E98 - High voltage system is not functioning properly (bring in within one day) and P1E00 - Charging system is not functioning properly (bring in at earliest convenience). The car is charging now (and seems to be charging okay). A month ago, the CEL came on and the dealer replaced the charge port. Everything seemed okay until today. I'm taking my Volt back in tomorrow (and I have left my Volt Adviser a message) and *sigh* will be without it again.
This car has become quite frustrating to own. In less than one year of ownership, it has been in for service for a total of over 40 days (the charge port issue and the skill saw debacle). At this point, I would do just about anything to get this car off my hands!