As mentioned before the Bluetooth has a bug. After some testing, it turned out that when parking in an underground parking garage, the signal is lost (that’s normal). The signal strength indicator on the screen of my car is also gone (also normal). The battery indicator on the phone and car screen is as it should be. But, when departing the garage the signal strength on the phone returns, but not on the car screen. Incoming calls are working, but outgoing from the car gives No connection’ on the screen.
Never happened before the last 3 years with my Samsung.
(TA-1043 / Oreo 8.1.0 / Ford Sync)