We're building a taxi driver app. Our goal is simple:
Play a notification sound when a new ride request arrives — even if the iPhone is connected to CarPlay.
We use Firebase push with "sound": "default" and "interruption-level": "time-sensitive".
The app requests .carPlay and uses a category with .allowInCarPlay.
Everything works when CarPlay is disconnected — we get sound and banner.
But when connected to CarPlay:
the push is delivered silently,
no sound is played (even on the phone),
Siri Announce is enabled, but nothing is spoken.
Questions:
Is notification sound blocked when CarPlay is active, unless the app has CarPlay entitlement?
Is Siri Announce the only way to notify the driver audibly in this case?
Would getting a CarPlay entitlement (e.g. CarPlay.communication) fix this without building a full CarPlay UI?
Thanks — all we need is a reliable sound alert when a new ride comes in.
