CarPlay throwing error after iOS 17.4 update on iPhone

The problem is only with the volume, it doesn't work. After updating to 17.4

This in all 3 of our cars, we have a Pioneer in a mitsubishi (wireless) and 2 BMW (wireless), all cars, with the same problem. I have the same error code as yours.

Hello. I have this problem too and there is also a Reddit thread about it. Pioneer AVH-W4500nex; wireless connection. iOS 17.4 And 17.4.1.

I have contacted service (by phone) and spoke with a Sr. Advisor. Long story short, after some diagnostic data sent to Apple, the engineers are looking into it. Seems to be a pioneer -> apple issue. No solutions found yet.

As a bandaid solution, use control center to turn off wifi to sever the connection, wait a moment and re-enable the wifi. It may take 2 or 3 tries but the volume control will work again. This will need to happen every time the error happens.

According to Pioneer site, no firmware updates available (and seem to be none since about 2019 for most head units). hopefully an incremental update to iOS will fix.

So. Hopefully this one won’t get removed or edited by not me.

I have had several conversations and troubleshooting with an Apple Sr Advisor. They were awesome and spent a good amount of time working with me. My last contact on this issue was the other day.

Here is my takeaway from that conversation: The fix should be coming in the a coming iOS update. They have confirmation that it works. So I guess we need to be patient and wait for the update to drop.

show me how to update iOS please

It is definitely an apple iOS update issue. Apple needs to figure out the problem! It did not happen until the 17.4.1 update occurred in my system. It is only the volume control issue and if I turn it on and off multiple times via Bluetooth and or Wi-Fi connection, it will sometimes fix the issue and other times it does not. It is definitely an apple issue and Apple needs to fix it because the previous iOS programs didn't have this problem

In the meantime, still the easiest work around is as I mentioned in previous post: swipe down on screen to access control centre. Toggle off wifi, wait 5 seconds and reconnect. It may take up to 3 times, but volume control should be restored

[Edited by Moderator]

I have the same issue with an iPhone 15 pro max, iOS 17.4.1 and a pioneer avh-w4400nex. Worked flawlessly for years but volume not working now in CarPlay since 17.4 update. If I take the faceplate off and put back on it’s fine but that’s annoying as heck. Volume on the pioneer was works fine if I’m not in CarPlay. Come on Apple, fix this!

That error is coming from the head unit in the vehicle, not the phone.

You need to update the firmware of the head unit.

I have the same problem, I have an avh-z9280tv and the same error 02-60 appears. It started after upgrading to 17.4 and 17.4.1.

Same here, after upgrade the iOS17.4 version, CarPlay volume function doesn’t work.