Car play doesn't work with Iphone Pro 18 and IOS 27

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Level 1

4 points

Car play doesn't work with Iphone Pro 18 and IOS 27

Carplay now fails with my new iphone 18 pro with IOS 27 with my 2018 nissan murano. I have tried all the nonsense with cables and restarting/rebooting/deleting profiles/deleting bluetooth/resetting. Fact is that this worked well with my Iphone 17 and now doesn't work at all.

iPhone 18 Pro

Posted on Oct 20, 2026 11:22 AM

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Answer 1

Top-ranking reply

WheelieNick

Level 9

72,262 points

Oct 20, 2026 11:34 AM in response to Crapplefig

Hi there

Please try this

CarPlay failing on your iPhone 18 Pro (iOS 27) with a 2018 Nissan Murano often happens because the phone's new USB-C/data-handshake protocol or default device name conflicts with older Nissan infotainment firmware.

Specific, overlooked fixes for this combination include:

1. Change Your iPhone's Name

Migrating or keeping a backup name from an older iPhone can confuse the Nissan head unit's pairing cache.

Go to Settings > General > About > Name and type a completely unique, simple name for your iPhone 18 Pro (avoid using special characters or apostrophes).
Delete the old profile from your car and re-pair.

2. Check Wired Accessory Settings

iOS 27 introduces stricter security gates for data accessories.

Go to Settings > Privacy & Security > Wired Accessories and make sure it is set to Always Allow.

3. Disable Connectivity Assist / VPN

Go to Settings > Wi-Fi and turn off Connectivity Assist if active.
Turn off or temporarily uninstall any VPN apps, as they frequently block iOS 27 wired data tunneling.

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Answer 2

Oct 22, 2026 6:30 AM in response to Crapplefig

I have the exact same issue with a 2018 Buick Regal TourX. iPhone 11, 13 Pro, and 16 Pro all connect fine with CarPlay. New iPhone 18 Pro refuses to be acknowledged for setup.

Using a new wireless adapter works fine, since the phone connects to the adapter which itself is recognized as a CarPlay device. But a direct USB connection between the iPhone 18 Pro and infotainment does nothing, regardless of cable or setting changes. The iPhone 18 Pro works fine with other CarPlay systems, such as my 2023 Kia EV6 GT.

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Answer 3

Crapplefig Author

Level 1

4 points

Oct 21, 2026 9:02 AM in response to WheelieNick

I have done all of these things in the past, and they have all failed. But for the purpose of this dialog, I went through the steps you outlined again. The only change this time was the lack of apostrophe in my phone's name (that was new). As so many times in the past, it connects the first time with the new profile and fails every time thereafter. And just in case you were wondering, I did have the bluetooth on my phone turned off, as that has allegedly been the cause of carplay connection failures with IOS 27 as well.

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