Siri not working with CarPlay after iOS 18 Update

I upgraded to iOS 18 on my 13 Pro Max. So far all seems pretty good with the phone itself. However, when I connect to my 2019 Subaru Outback Siri does not work right. Siri works fine when not connected to CarPlay.


Here is the most obvious symptom. When the iPhone is connected to the Subaru with CarPlay, if I ask Siri to message, my daughter, her name will pop up on the car’s CarPlay screen and the little circular glow thing is there, but it does not take audible input.


It worked perfectly fine before the iOS upgrade. I find this a safety concern because I may want to respond or create a text message while driving without having to look at the phone or touch the phone.


Has anybody else seen this problem or suggest a fix for the problem? I did turn off the car unplugged the phone from the car and restart the car. At the same time, my rebooted my cell phone. That did not help.


[Re-Titled by Moderator]

iPhone 13 Pro Max

Posted on Sep 18, 2024 4:39 PM

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Question marked as Top-ranking reply

Posted on Nov 8, 2024 5:51 AM

FIXED (for me at least)


While in your car and preferably not near other WiFi sources, Go to Settings-> WiFi. You should see a network name something like "Car-DEC6" or something similar. Apple Carplay is using both bluetooth and wifi network to work. For me, I was able to play music, see maps, etc.. but no Siri voice commands were working. I turned off the following settings and everything has started to work again. Note: I also completely removed my car from CarPlay on the phone and the phone from the Car's system. Then re-added the phone to my car for CarPlay. This didn't fix the issue but I did do this first before disabling the settings below which did fix this issue. It's worked for days now.


On the Wi-Fi network described above, click the blue i to access the details for that connection. Turn off the following settings:

  • Private Wi-Fi Address
  • Limit IP Address Tracking


Once I did this, Siri voice commands started working again.

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96 replies

Sep 22, 2024 9:42 PM in response to Brett-Kennedy

Since loading iOS 18, CarPlay in my 2023 Subaru Forester has not worked. Keep getting the Subaru screen to disconnect, wait, and reconnect. After doing this cycle about a dozen times, CarPlay still does not appear.


Tried different USB-C to USB-A cables with my iPhone 15 Pro, and the same Subaru screen appears . . . Disconnect, wait, and reconnect. Not thinking its the cables.


Even went thru the ‘forget this car’ by removing the car from my iPhone to no avail. After removing the phone, and when the car does appear to connect, it does give the screen on my phone about accessing CarPlay while phone is unlocked . . . But the disconnect, wait, and reconnect Subaru screen appears shortly thereafter. This tells me that it wants to connect and engage CarPlay; but something is still not allowing it to engage.


Also went into the Screentime settings to ensure CarPlay was checked to be an allowed app in the content and privacy restrictions. Still, the same disconnect, wait, and reconnect Subaru screen appears.


It seems there is something in the new iOS that is not allowing Subaru’s infotainment system to fully engage CarPlay. Please help!

Oct 11, 2024 5:39 PM in response to Brett-Kennedy

Interesting to know that you were not using the steering wheel controls for handsfree operations in your vehicle. Never occurred to me that users with steering wheel controls weren’t using them. Seems like if you were using Hey Siri before while in the car you may have been technically it using CarPlay for those functions and were instead using Bluetooth with the phone treating the car speakers like a bluetooth headset (which technically is what people that don’t have CarPlay in their vehicles but can pair their phone via Bluetooth would do). Nothing wrong with that of course but just surprised

Dec 9, 2024 11:02 AM in response to Brett-Kennedy

I have a 2024 Buick Envision and Siri has glitched ever since the update. She will answer, then I’ll say the message I want to send, then she’ll repeat back the first or last sentence only! Or she says something like “I can’t give you that information at this time.” It is totally unacceptable that a feature that keeps people from having to look down at their phones while driving is totally messed up due to another update! When will this be fixed??

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Siri not working with CarPlay after iOS 18 Update

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