MyGMC App will not connect Android phone unable to complete authorization

I have the same issue.  I have tried every troubleshooting step, including removal of my OnStar account and adding it back.  Support has not been able to help. 

I have also tried receiving the code on a different device so that I can make sure I'm staying in the app.  Something in the workflow is failing.

See attached image.

SAME On my NEW 2025 CHEVY TRAX I cannot log in to the MyGMC app on my Android phone.  I have tried to uninstall and reinstall and that has not fixed the issue.  I can enter email and password.  I get the email notification with the second security access code, and I enter the code.  After that I get a message that says "Unable to complete authorization as there is no interactive call in progress.  This can be due to closing the app while authorization was in process"

I did not close the app, I did not leave the app, I did not tough the phone after entering the authorization code and the message above is still happening and it will not connect and it will not complete the authorization.  

I don't know if this is a conclusive or general fix, but it worked for me: I logged in to my my.chevrolet.com account on a browser on my Android phone.  I then signed out and tried the app again, and it successfully accepted the access code.  It may be that the browser interaction allowed the system to establish the phone as a recognized device.  Or, it could have been a random success.

I purchased a vehicle yesterday. The app was working fine until I had the call with the OnStar rep. Now, the app won't load and connect. After multiple attempts to get it to load, it is completely frozen. I've tried rebooting my phone and reinstalling the App multiple times as well as clearing the cache. I even tried to do a manual connection from inside the vehicle via its touch screen to no avail. This app is so difficult. My other vehicle from your competitor has zero issues with their app. What can be done to remedy this?

I am having the same problem. Android 14, Samsung S21. Thanks

I am having the same problem today.  Is there a fix for this? I live in Wy and depend on the app in the winter to start my GMC when it is -40 out.  I had no problem until they started this extra authentication thing.  I get the same message the others are getting.  I have reloaded the app, shut off the phone, and put the code in by getting it from another device so the app doesn't think I left.  nothing same thing over and over. What is the fix? Getting mad about paying for a service I can't use

Ok, so I fixed my issue. This may help someone else. I recently upgraded phones, and my new phone would not login. Same issue as in this thread. I fired up my old phone to see if it would still work there and it did, but i noticed it did not ask me for a password or authentication, it came right up to my profile. So i logged out of the app on the old phone, then tried on the new phone and the authentication went through this time. Even though the phone was powered off, OnStar was still somehow attached to that phone. So My problem is solved. Hope this will help someone else. Go to your PC or anything that you have logged into your OnStar with and see if your still logged in there, Hope this helps, CIAO!

Nop, it's not this! (being signed-in on another device), I still get the message! .... How about you guys disable this 'authentication with sending code'; it's really not required. One year passed and we still can't use it!! ...... For me it's a total white screen, unless I chose "open in browser", and then If I continue there, again the same message!   

Okay so my previous fix about my other device being logged in could be incorrect. My new phone won't connect to it again. But I have found that my truck goes into a sleep or a hibernate as you will at some point and will not respond to anything. My key fob won't work standing in front of it nothing I have to manually hold the door button down to get it to wake up before it'll start working. Now with that said once I do that the Apple connect but until I do that it will not. There must be some sort of a shutdown or hibernate on it to save battery that I have not found out how to disable yet. But if I have to go out to the truck to wake it up so to speak to use the app. It's pretty much useless. Can anybody point me to the right settings to disable this sleep mode?

Six months later and it is happening again.  It did fix itself somehow briefly and now it is happening again that it cannot log me in to the app.