Level 1

30 points

iOS18 & Carplay Issues - Person I Call Can't Hear Me

I updated to ios18 and now have a problem with my carplay. I always plug in so wired. All working totally fine until the software update. Now the person on the other end can't hear me when I'm hooked up in the car. All looks to be the same, I can hear everything, I can dial out on the touch screen etc but they just can't hear me. I've tried 3 different people. All ok if I try just through my phone - no car.

I have tried a reboot of the phone, no change. I will try removing the car from the carplay on the phone and re-adding it see if that works later today on my break at work but wondered if anybody else has the same issue?

Toyota Rav 4 2020

[Edited by Moderator]

Posted on Sep 19, 2024 12:49 AM

Top-ranking reply

Kikkak

Level 1

20 points

Posted on Mar 12, 2025 2:25 PM

Had a very very long case open with apple. Ended up going up to a senior technician and they needed more info, mostly device logs and timestamp of when it happened. So I did a call to Roger’s, I’m on Roger’s, and same issue. Low voice on other end. Had the apple person call me back, and we then processed to send logs from phone to apple. They can enable a link under the privacy in settings that sends diagnostic to apple. Sent with a couple pictures and the senior tech will have a look.

at first they would punt me to Roger’s. it I did that already and Roger’s gave me a case number. I told the apple employee I had a case number and they continued with the call.

I also took the car to the dealership and they reset the DCM, looked behind the dash to ensure no wiring is loose and they also looked for a firmware update, which there was none.

From my experience, it’s an iOS 18 issues. It does not happen on My iPhone X on iOS 16.

It only happens with calls between same carrier through apple carplay.

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34 replies

na3935

Level 1

26 points

Jan 17, 2025 5:55 AM in response to isac246

For me it works fine if the caller is on Verizon. But att callers can’t hear me. Is this the same for you?

Mar 8, 2025 10:31 PM in response to na3935

I drive a 2019 UX 250H and have Verizon. Verizon call recipients cannot hear me, but ATT calls can!

Mar 8, 2025 10:26 PM in response to Kikkak

Same situation here . . . . the same carrier on both ends seems not to work, while a different one does hear me. When I'm not cabled, everything's fine (i.e., Bluetooth is fine, CarPlay, not same carrier-to-same carrier.

Mar 8, 2025 10:47 PM in response to isac246

But for me, everything works well—all the microphone issues are fine EXCEPT on the outgoing sound in CarPlay when both sending and receiving service providers are the same. Bluetooth is fine—this fix with the communications model is for a car/system-wide microphone problem.

Mar 12, 2025 9:57 PM in response to na3935

So . . . whom do we kick this up to? Who is going to alert whom at Apple? Are they tracking these issues? What's the next step for those of us with a problem? Can we assume that at least a few Apple people over there in Cupertino with the same problem? Does each of us need to open a tech case?

Mar 19, 2025 8:50 PM in response to na3935

I've been referred to a tech person above the normal front line support person, but I haven't had that extra hour in my life to pick this problem up again for several days (and that's what each of the three earlier phone calls took). I'm going to try again in a day or two and report. . . . .

doodledonz Author

Level 1

30 points

Sep 19, 2024 5:05 AM in response to doodledonz

Update, I removed Carplay on my phone and also the car itself from the Bluetooth on my phone

Then re-added - still the same problem

carefree

Level 1

14 points

Sep 19, 2024 3:23 PM in response to doodledonz

I’ve got same issue

Oct 5, 2024 3:04 PM in response to doodledonz

Same problem here. What can we do?

jzli

Level 1

8 points

Nov 3, 2024 7:55 PM in response to doodledonz

Same issue here, I thought apple will fix in 18.1 but they didn’t, we need to escalate this problem.

FreddyBZ

Level 1

46 points

Jan 12, 2025 1:14 PM in response to doodledonz

I have the same issue since I've upgraded from iOS 17 to 18. I'm now on 18.2.1 - still the same issue. My car is Lexus ES350 2020. It was working fine with iOS 17.

FreddyBZ

Level 1

46 points

Jan 17, 2025 9:07 AM in response to na3935

Are you using Verizon or ATT? I'm using Verizon. When I call my wife (on Verizon too) she cannot hear me.

na3935

Level 1

26 points

Jan 17, 2025 9:22 AM in response to FreddyBZ

I am on Att.

Feb 3, 2025 7:54 AM in response to na3935

2019 Lexus NX, same issue! So frustrating.

isac246

Level 1

14 points

Feb 3, 2025 7:05 PM in response to doodledonz

I tried the DCM module resetting as the YouTube video said to do, on Saturday February 2, 2024. I disconnected the battery overnight, and I continue to have the same issue.

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iOS18 & Carplay Issues - Person I Call Can't Hear Me