Vehicle Status Issue

In the OnStar app, my vehicle will not show the status anymore. Says it was last connected 4 months ago, but my subscription is active, the OnStar light is green in the car, and I can still pull up the vehicle location on the map. I've tried logging out and logging back in multiple times, as well as uninstalling and reinstalling the app. I even did a call with support, and they said they couldn't see any issues on their end. Does anyone have a fix for this? My vehicle is a 2025 Chevy Tahoe RST. 

Thanks so much!!