I'm having issues logging into OnStar using the app. It keeps telling me that OnStar is unavailable and to try again later, but when I try from my iPad (older iPad 2) I get in fine, it's just from my iPhone 5. Both devices are running iOS 7 with all the latest updates.
I can tell by the look and feel that the app was updated recently. I tried deleting the app and reinstalling with no luck. Just curious of anyone else with an IPhone 5 is having an issue.