Seems to be a Uconnect 5 issue across several brands. I stole this message from a Jeep Forum. Hopefully they push an over the air update for the TRX as well to fix the issue:
Hello to our Jeep Brand enthusiasts,
We've been monitoring your conversations and hear your concerns surrounding your Uconnect 5 systems, and a "Uconnect Box Requires Service" error message that you may be receiving. We wanted to provide some clarification, to put your minds at ease. We can confirm that the pop up does not reflect an internal radio error that requires a dealership visit. We apologize for the concern and confusion that this may cause you, but please know that our teams are actively working on a resolution. At this time, we are able to confirm the fix will be delivered via an over-the-air update to the telematics box module (TBM). While our teams are hoping to release this software fix by the end of Q1 2022, this timing is subject to change at any time and we appreciate your patience throughout the process.
Please feel free to send us a private message or reach out to our friends at @UconnectCares on Twitter, if you have any questions or concerns.
Thanks,
Courtney
Jeep Cares