CarPlay "Hey Siri" not working

inspiredlogic Said:

"CarPlay "Hey Siri" not working: [...]The only fix was suggested by someone else in this forum and it is clunky but it works. Rebooting the Head Unit by holding the Home button until the option to reboot displays. After that, CarPlay responds to "Hey Siri/Siri". But it works as long as the car is running. Once turned off the Head Unit has to be rebooted again. Everytime.[...]"

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Troubleshooting "Hey Siri" with CarPlay:

Use "Forget this Device":

If this keeps going away, then remove your device from the audio systems and then add it back. That would make it re-repair (not repair), perhaps fixing the sync issue.

inspiredlogic Said:

"CarPlay 'Hey Siri' not working: I have an open ticket with Apple at the moment and thought I would share my issue in hopes others could contribute to possible causes or fixes. [...]My issue has been sent to Apple Engineers and expect to hear back from them. I'll update this after I hear back."

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Troubleshooting "Hey SIRI":

A. Start here: If "Hey Siri" isn't Working on your iPhone or iPad - Apple Support

B. Take to an Appel store:

You'd setup a Genius Bar Appointment at your local Apple Store, taking it in for service. There, it will be diagnosed, and you'll be provided with your options.

A. Restore your iPhone from a Backup:

Have any backups of this iPhone prior to this occurrence? If so, restore your iPhone from one that has these photos (the most recent backup, ideally). If not, then take this as a learning experience, knowing to always back up your device for recovery purposes. Important: Back up your iPhone prior to performing this restoration, should anything go wrong from here on out.

D. Report this to Apple:

Do your part: Let Apple know what is going on here. Provide them with feedback on this. They may not get back to you directly, but the more feedback they received on this, the more they will know what is going on, and what needs to be fixed in updates to come.

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: on when this issue began, and how you have troubleshot it this far. Include the URL of this thread.
4. Proceed from there aw necessary

I remember some posts on this and what seemed to solve it for them was to open Settings > Apple Intelligence & Siri > Siri Responses > Make sure Prefer Spoken Responses is checked. See if this helps your issue.

inspiredlogic Said:

"CarPlay 'Hey Siri' not working: I have an open ticket with Apple at the moment and thought I would share my issue in hopes others could contribute to possible causes or fixes. [...]My issue has been sent to Apple Engineers and expect to hear back from them. I'll update this after I hear back."

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Instal Firmware Update on the Car:

See if there is a way it install firmware update on the car's stereo.