I've been working with onstar to get my alerts working. These alerts are the ones that tell you when charging is complete or if charging is interrupted, via a text message to your phone or an email.
They are saying that the car must be manually locked for these features to be armed. This...
I just tested and it seems like the latest RemoteLink application on iPhone is working fine now.
Looks like the fix was of the server side rather that the application itself.
Thanks GM for quick turn around!