Level 1

31 points

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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50 replies

Oct 28, 2024 10:04 PM in response to KelShak

I have the same issue in the 2024 terrain. It Is happens sometimes, but when it happens I have to power off the car for a few minutes to use the system again. It is very annoying, because it usually happens when I am on the road and the screen goes black without response until the vehicle is turned off for several minutes.

Dogcow-Moof

Level 8

36,827 points

Nov 3, 2024 12:38 PM in response to bill-1890

Not true, especially the GM reboot issue.

There should be nothing an iPhone could possibly send the GM head end that could cause it to reboot - so that will need to be fixed by GM.

The wireless CarPlay issue sounds like Mazda did not properly implement things.

Many engineers at Apple drive any number of vehicles, so if these issues were iOS issues that happened across all models of a particular vehicle, Apple engineers would have tripped over them by now.

Sep 19, 2024 8:23 PM in response to KelShak

I have a 2019 Camaro and same thing after the update it makes my infotainment system keep rebooting

Bthib21

Level 1

8 points

Sep 25, 2024 5:07 PM in response to KelShak

Did anyone find out why?? Same thing is happening to me.

svp13

Level 1

12 points

Sep 25, 2024 7:19 PM in response to KelShak

This is happening on my 2020 gmc sierra as well. Very annoying. Tried to restart my phone it worked for about 20 minutes and now keeps rebooting my infotainment system.

Sep 25, 2024 9:44 PM in response to KelShak

I have a 2018 Terrain and my new iPhone 16 which has iOS 18 will not connect through Bluetooth or CarPlay. Glad it’s not just me, means they will have to fix it!

bwanana

Level 1

8 points

Sep 27, 2024 12:18 PM in response to KelShak

I am having the same issue with my 2019 Chevy Equinox. Spontaneously rebooting infotainment system after iOS 18 upgrade.

bwanana

Level 1

8 points

Sep 27, 2024 12:32 PM in response to bwanana

Also have iPhone 13.

KiltedTim

Level 10

225,210 points

Sep 29, 2024 9:52 AM in response to Nicolesla

Nicolesla wrote:

2019 GMC terrain - same!! I’m thinking of reverting back to the previous iOS.

Unfortunately, you can't do that.

Oct 20, 2024 5:09 PM in response to KelShak

Same exact issue with my GMC Terrain. Hopefully Apple will fix this soon!

Oct 31, 2024 6:47 PM in response to Darkskies84

Yes same with me even after updating the CarPlay still not working

Oct 31, 2024 6:55 PM in response to Darkskies84

Same - still no fix for me either with os18.1

Nov 3, 2024 12:29 PM in response to KelShak

My issue was that it wouldn’t connect to my vehicle by Bluetooth. Since the update it does! Yay!!!

Nov 3, 2024 1:24 PM in response to KiltedTim

I did contact my dealer and there is no update at gm

Dogcow-Moof

Level 8

36,827 points

Nov 3, 2024 9:38 PM in response to C_TX

The bottom line is it's GM's issue to fix if most other head ends have no issues (and they do not.)

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CarPlay unresponsive after iOS 18 on GMC Terrain