I finally found the issue with intermittent CarPlay connection and it has to do with Google/GMC
What’s happening is trusted device/profile lock enabled CarPlay will fight for activation and fail due to time constraints! I’ve had no issues for 6 months CarPlay works even when I remote start the vehicle.
1. Delete trusted devices
2. Delete any profile lock.
3. Reboot system:
Car is running, hold the mute button until you hear a click.
Then turn the vehicle off open then shut the door while remaining in the vehicle.
Important wait for all dashboard/vehicle lights to go out then start vehicle and reboot is complete.
If you don’t wait until the system properly shuts down then it will reboot but the infotainment system will still have residual power and not properly reset.