Car Play Volume

Hi Struthunter,

We'll be glad to help you out with changing your volume. If you turn the volume down while Siri or your navigation app is actively speaking, that should lower the volume for you. Otherwise, changing the volume while your navigation app isn't speaking would cause the overall system volume to change, rather than the navigation volume.

For more info on changing the volume, see here: Adjust the volume on iPhone

That should resolve this for you.

Cheers.

Hey Struthunter,

Thank you for using the Apple Support Community. Due to the nature of your issue, you may find more information by contacting Apple Support directly using the link below.

Contact Apple Support

Take care.