There aren't a lot of threads referencing the P0D17 code. It looks like it's sometimes an issue with the actual charge port on the car. You can try cleaning the contacts in the charge port with q-tips and electronics contact cleaner. Otherwise, the dealer will probably have to change the port.
The guy in the thread below below also needed the battery junction block changed and had a battery coolant leak. Hopefully that's not the case for you.
http://gm-volt.com/forum/showthread...nt-Problem-Trying-to-Charge-Car-Advice-Sought
The guy in the thread below below also needed the battery junction block changed and had a battery coolant leak. Hopefully that's not the case for you.
http://gm-volt.com/forum/showthread...nt-Problem-Trying-to-Charge-Car-Advice-Sought