Same issue. iPhone 12 and BMW 2021 X3. If i turn off Bluetooth and toggle back on after leaving car, and toggle off/on Calls on other Devices within the phone menu, the Watch receives phone notifications.
jexpo20
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution