iOS 27 CarPlay not working after update on 2 different iPhones, that worked perfectly before the update.

I have a iphone 15 Pro Max and I’m on T-Mobile. My Carplay stopped working immediately following the ios 27 upgrade. Its buried pretty good… I found out the upgrade blocked my Carplay in the “Content & Privacy” section in the Settings “Screen Time” section. My fix was to go to Settings, Screen Time, Content & Privacy Restrictions, Other Features, Carplay and switch from Blocked to Allowed. Once Allowed, and you connect to your car, you may need to add your vehicle to Carplay to complete the process.

I got Iphone 15 pro max and got the same issue after upgrade to iOS 27. Mine got resolved after resetting the network settings. After resetting the network settings from phone, when I reconnect to the car either wired or wireless, it works as usual. I hope it helps for others.

Re: "Any suggestions would be greatly appreciated".

If you haven't already: You may want to check whether there is an update for the infotainment system available. (ie: to keep the system compatible with iOS version )

Eg: The vehicle's manual may provide info on "firmware" updates.

Or https://www.mercedes-benz.co.uk/passengercars/technology/over-the-air-updates.html

________________________________________________________________

Re: "Perhaps this gives apple a clue to looker closer to this particular issue on many users"

Apple is unlikely to see your post to us in this community of Apple customers.

If a bug or other Apple responsibility is involved :

The more feedback Apple receives on an issue, and which hardware models and software versions are affected, the more likely the issue will be addressed in a future iOS update.

Apple welcomes feedback. All feedback is carefully read and logged.

If you want to send feedback: Apple's feedback website: Product Feedback - Apple

I have solved this problem in Settings - Appearance - Setting Display and switch from Bigger Text to Default. Afterward CarPlay is working, even if I sett the Bigger Text back.

My fix was to go to Settings, Screen Time, Content & Privacy Restrictions, Other Features, Carplay and switch from Blocked to Allowed. Once Allowed, and you connect to your car, you may need to add your vehicle to Carplay to complete the process.

Hello @GoldwingTX,

Welcome to this Apple (user-to-user) Community!

Re: "I have been having many problems with Carplay ..."

Thank you for your thougtful post, for providing a clear picture of your issues, and what you have already tried.

Not everyone using iOS 27 versions has CarPlay issues, and some with issues initially, have found their own solutions fixed their issues. Each case is unique.

(1) Have you tried checking for firmware updates for the stereo / infotainment systems in both vehicles ... the vehicle manuals or the manufacturer's "support / help" website may provide more info.

(2) Have you checked through Apple support's trouble-shooting article (link below) for tips:

If CarPlay isn't working as you would expect it to, find out what to do:

If you need help with CarPlay

(3) Have you updated the iPhone's iOS to the latest version:

ie: About iOS 27 Updates - Apple Support says "iOS 27.0.1" is the latest

"This update provides bug fixes for your iPhone" (more info. in article)

(4) If installed on iPhone: VPN, (if not provided by an employer) can be responsible for interference ... as it still runs in the background when turned off, using an uninstaller from the developer is the best way to get rid of it, and any associated files.

(5) As Apple customers, just as you are, no-one here has the access to fix software bugs. If that is what you suspect: Apple welcomes feedback, yet is unlikely to see your post to us here.

All feedback is carefully read and logged. If others are reporting similar issues, and Apple finds its software is responsible, there may be an update that addresses those issues. The more feedback Apple receives on which iPhone models, software versions, and vehicle models are affected, the more likely the issues will be addressed. (You could include a link to your post here, if you wish)

Apple's feedback website provides web-forms designed to reach those who work on the software behind-the-scenes at Apple.

All the best :-)

1. Unblock CarPlay in Screen Time

The update can flip this off in the background.

• Go to Settings > Screen Time > Content & Privacy Restrictions > Allowed Apps.
• Make sure CarPlay is turned ON.

2. Turn on lock screen permissions

• Go to Settings > General > CarPlay, tap your car, and turn on Allow CarPlay While Locked.
• Go to Settings > Face ID & Passcode, scroll down, and make sure Siri is turned ON.

3. Remove the car and pair it fresh

• On your iPhone: Go to Settings > General > CarPlay, tap your car, and select Forget This Car.
• On your car screen: Delete your phone from the saved Bluetooth or CarPlay list.
• Restart your phone, turn the car off and back on, and set up the connection again from scratch.

4. Reset Network Settings

• Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. (This clears saved Wi-Fi passwords, so you'll have to type them back in).

5. Turn off any VPN apps

• Go to Settings > General > VPN & Device Management and turn off any active VPN. VPNs frequently break CarPlay wireless handshakes after major updates.

This happened to both myself and my husband following the most recent ios27.2 update. The most notable CarPlay issue was that any streaming service (Music, Audible, Podcasts) would play for about one second at a time before pausing again. I finally was able to correct the issue by disabling the Siri Attention Awareness feature and then turning it back on.

Disable Siri Attention Awareness:Go to Settings > Face ID & Passcode and toggle off Attention Aware Features. A glitch can cause the phone to think you are looking away or prompting Siri, immediately pausing your active media.

Update…sort of. I got it to connect. It only works the first time I plug it in. If I disconnect and try to connect again it will no longer recognize my phone. My work around to that is if I restart my multimedia display and plug my phone back in, it works. Stupid workaround but, it’s all I got for now until they release an iOS update that fixes CarPlay compatibility.

I just upgraded from an IP16PM to an IP18PM. When I connected the new phone to my car, it failed to connect to my 2019 Honda CRV, which has wired CarPlay (not wireless). Something about "Device not responding" appeared on the screen. I could see the phone was charging fine, so the cable should be good.

I looked around the net and found one note saying to check the Settings>WiFi and make sure Connectivity Assist was off. When I checked, mine was on by default.

I then cleared any old references to the car on the phone, and removed all phones from the car.

Connected it using the same old cable that worked before for the 16, and it connected just like new.

Hope this helps anyone else, and I hope it works for you.

Re: "17 pro and my 13 pro max" : iOS 27 CarPlay not working after

update on 2 different iPhones, that worked perfectly before the update. I have tried all suggestions so far.

We can not guess what you have or haven't yet tried

Eg: The firmware on the vehicle's stereo / infotainment system may need updating to remain compatible with your iPhones. The vehicles manual may provide info. on how to update the firmware, (or the dealer's support / help website may)

Eg: You may or may not have viewed Apple support's trouble-shooting article (link below):

If CarPlay isn't working as you would expect it to, 

find out what to do: If you need help with CarPlay - Apple Support

_______________________________________

Re: "Is there a software bug that needs a fix?"

As Apple users, just as you are, we don't get to see what feedback / bug-reports etc. are sent to Apple. Unless others reply here directly with a similar issue, we have no way of knowing for sure.

Also, there are various (and differently-aged) vehicle models, yet CarPlay is available on selected models and on select navigation systems: iOS - CarPlay - Available Models - Apple

________

If needed:

Apple's feedback website: Product Feedback - Apple

Update: I had to turn off VPN, which I absolutely should not have to do. Apple needs to fix this.

Fixed.

I used the original Apple USB C cable and a UGreen USB C to USB A adapter.

I have a 2017 CRV EX-L. I had issues with the connection dropping once connected on the wired carplay. After unplugging and plugging it in 3-4 times it would solidify. If you are getting nothing at all, have you tried a new USB-C cable? IF not the fixes above seem worth checking out. Regarding the firmware update, it is a safety update to help with the blind spot and cruise control sensors, it will not fix this. I did do an erase all content and settings and restore from a backup and that corrected the wired connection issue. It took a bit but hey no more issues. I ended up also getting this wireless adapter which I like a lot and now I don't have to plug in all the time (Carlinkit 5.0 (2air): Upgrade Your Car to Wireless CarPlay and Android.)

Re: "This must be an IOS problem".

Seems relying on Artificial Intelligence for correct answers is not always productive.

Have you checked for firmware updates from the car manufacturer ... the stereo / infotainment system needs to be kept compatible with the iPhone and iOS. Your vehicle manual (or the manufacturer's "help / support" website) may have info. on firmware updates for your vehicle make and model.

Have you tried Apple Support's troubleshooting suggestions (linked article below):

If you need help with CarPlay - Apple Support

__________________________

Re: "Hopefully it’s fixed soon"

If you still suspect a bug (seems not everyone has issues after updating to iOS27): Let Apple know ... the more feedback Apple receives on an issue, the more likely an update to fix it will be released.

Apple's feedback website: Product Feedback - Apple