Bluetooth gone crazy
iPhone 13 (iOS 16.6) connecting to Hyundai Elantra (2017) via Bluetooth.
Connect my phone via bluetooth daily to Hyundai and no problems.
Yesterday everything was working fine in the morning. In the afternoon, I turned on car and phone wouldn't connect. There was a progress bar on the iPhone home screen above all my icons but below the time, cellular strength, wi-fi status and battery icons. Then iPhone screen went very dim and I couldn't increase brightness plus no audio so I rebooted phone a couple of times and it still was acting funny so I turned off bluetooth on phone. iPhone then started working normally and had no other issues. Today I turned on car and iPhone automatically connected via bluetooth and audio played and everything was good with no weirdness. What could have caused this?
iPhone 13