Forum Discussion
Can't log into Mycadillac
Mycadllac app will not let me log in. It was working 24hrs ago. I have tried uninstalling, reinstalling. No help. I have called OnStar. No help. It tells me to sign in and then nothing. I have seen o...
I've been having this exact same problem for MONTHS!
We do regret to hear you are experiencing any login concerns with the mobile app. To further clarify, have you also attempted to uninstall and reinstall the mobile app from your device? This will ensure you have the latest version downloaded. If you experience any errors, please send us an email to the address listed above so we may help.