CarPlay unresponsive after iOS 18 on GMC Terrain

My phone updated to IOS 18. As soon as I connected to my car, it started crashing my entertainment system. It has worked fine for many years and the only thing that has changed recently is the update. It will temporarily play a podcast before crashing. Apple Maps will crash it immediately. I tried to forget the car in Settings:CarPlay. I shut car and phone down. The car has the latest updates. I tried a different USB cable in a different port. CarPlay has been and is still enabled, etc. Is this a known bug? Is there a fix?

[Re-Titled by Moderator]

iPhone 13, iOS 18

Posted on Sep 19, 2024 7:23 PM

Top-ranking reply

madsb12

Level 1

26 points

Posted on Oct 14, 2024 4:35 PM

Talked to apple engineer for over an hour of trouble shooting and problem solving, we got nowhere. However it is definitely a problem with CarPlay but one that GMC (or your car maker) needs to put an update out to fix.

It was suggested to me to reset my iPhone to a previous iCloud backup with iOS 17 until an update is available. I also found if I play my music and have my map running on my phone but disable CarPlay when I plug my phone into the car, my music will still play (CarPlay crashes without it being disabled and Bluetooth won’t stay connected) so that is something to try for now as well.

I contacted GMC online and was told to call the dealership I purchased the car through to ask about an update and report the problem. That’s on tomorrow’s list! Will report back if I think of it. But so far the best suggestion I have is to contact your dealership as well and hopefully many reports will get them moving on an update!

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CarPlay unresponsive after iOS 18 on GMC Terrain

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