Apple Carplay stopped working Accord 2018

Looking for assistance:


I have a 2018 honda accord. I have been driving it for a mere 2 weeks. Apple carplay was working wonderfully for 2 weeks until yesterday. No changes to the phone, just stopped working. Now I cannot get it working. I have tried the following:


Change Cable

Change USB port

Update OS (now 11.1.1)

Reset Network settings

Disabled all restrictions

iCloud backup performed


Phone model is 7 Plus. The car recognizes the phone, works in USB mode as well as bluetooth mode. In the smartphone settings on the car itself, it has the phone as enabled. I click connect and it just says cannot connect, no smartphone device detected.


I'm really at a loss here. This should be plug and play but it is most definitely not.

iPhone 7 Plus, iOS 11.1

Posted on Nov 24, 2017 9:59 AM

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Question marked as Top-ranking reply

Posted on Jan 13, 2018 9:56 AM

I just had this issue with my new 2018 Accord. You Hard Reset your car my removing the positive on the battery terminal. Mine used a #10 to loosen the nut. Super easy and not worth he wait at the dealer. Not to be rude but I’ll place the steps below.

- open hood

- unclip housing for red positive on battery to access nut (if yours has one)

- loosen nut (#10 socket worked fine for me)

- remove positive connection from battery

- wait a few moments (30 seconds should be fine)

- replace positive back on battery terminal

- tighten nut

- clip red plastic housing around positive terminal (if yours has one)

- close hood

- start car

- plug in phone

- test CarPlay


I hope this helps and is super easy, don’t let all the steps away you. It’s literally as easy as removing the positive terminal and the putting it back on.


- jason

197 replies

Nov 25, 2017 1:10 PM in response to sterling r

Thanks again. I actually went to the apple store and they did a complete wipe of the phone. I then returned to the car and tested the wiped clean version of my phone while they waited. I thought I was going to get lucky. When I plugged in it said, unlock phone to use carplay. I unlocked it and got the same message-unable to start carplay. It did not work. Returned to the Apple store. They ran a diagnostic on the phone and there were no issues with the phone (7 plus). To be safe, I tried a third lightning cable, brand new out of the box. Same error.


It keeps telling me to check the USB cable so its a hardware issue with the honda port or some sort of software compatibility issue being interpreted by the car as a connection issue.


All phone functions are working except the carplay interface-music via bluetooth or usb connection; phone via bluetooth; I can even give audio commands to maps via the car audio input function (but the maps show only on the phone, not the car).


So, its off to the dealer tomorrow to have them look at it. I will post the results here for reference but at the end of the day, I think I am dealing with a software compatibility issue of some sort and a future iOS update will rectify it.


Thanks for replying,

Dec 2, 2017 8:05 AM in response to ddugas1970

I am also experiencing the same issue. I’ve done the exact same testing as you but to no avail. Was planning on bringing it to Honda but will try a hard reset first. I have a suspicion that this problem occurred with my downloading of iOS 11.1.2. Until then no problems. My concern of course is that this is going to become a blame game between Apple and Honda with us caught in the middle. I just down iOS 11.2 and will try to see if CarPlay works with it prior to a hard reset.

Dec 4, 2017 9:55 AM in response to rthomas47

I’m having the exact same issue but it’s with my 2018 Honda CRV. It worked for one day and then stopped. I cannot reinstate it.


Honda says it works with android, just not with anyone’s iPhone. We’ve tried everything that all of you have.


Apple says the car is not compatible with the iPhone. This seems crazy that they would put CarPlay in a car and it not be compatible. Do I need to be patient and wait for Apple to update the software?


The 2017 of my car is on the list of compatibility. Will apple update the software so the new car is also compatible? Who can I talk to at Apple to ask this?


One of the main reasons I bought this car was to use CarPlay. I did not buy the navigation because of it having CarPlay. I’m really upset that my phone does not work with the CarPlay

Dec 4, 2017 10:53 AM in response to SharonHSt

Hi All...I certainly share the frustration as I was without Carplay for a few weeks. I am now about 5 days into my hard reset and Carplay continues to work.


You probably should take it into your Honda dealer, but a hard reset is done by holding the Home, Source and Power buttons at the same time for about 5 seconds. It will bring up a diagnostic menu. The option to select is Functional Setup reset. But, I was told any mistakes in this menu and you could really muck up your car. You may also void your warranty, so be careful and, I would suggest just bring it in. The dealer will do it for free.


I fully expect the issue to come back, but this reset does clear whatever is causing the compatibility issue. I also suspect a firmware and/or iOS update will eventually resolve whatever is causing it. Hope this helps and good luck

Dec 14, 2017 8:03 AM in response to ddugas1970

I've had my car a little over a week and it stopped working. The only way to connect my phone is via Bluetooth. I have an iPhone 7 plus the software is up to date. Yesterday I did a system reset back to factory 4 times which was useless because all the presets are still in the unit so nothing changes. There seems to be little information out on the issue. I also noticed the USB ports do not charge the phone. So it might be a defect in the equipment not yet discovered. My cables are new apple cables so it's not that.

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Apple Carplay stopped working Accord 2018

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