Here is the response I got from UConnect customer support:
1. Your vehicle's software should be at 21.9
2. You can check the current software by the following steps -Push and hold front defrost, driver temperature up and down and dealer mode will appear -radio part information -software application version
3. The update fixed the following issues:
- Antitheft code request message.
- Backup camera screen is blank.
- Lines appear across screen.
- Radio control screen is blank or locked.
- Radio reset intermittently.
- Unable to adjust audio volume.
- Unable to switch modes between AM, FM, SAT or Media.
In addition the following enhancements are included in this update:
- Improvement to Bluetooth phone pairing.
- Bluetooth devices unresponsive.
- Improved sound quality when using a Bluetooth phone.
Yeah, about that last "enhancement"...can I get rid of that one?