I have a 2015 Honda CRV.
I've had both the iPhone 6s and 7s. And once paired with the Handsfree Link,the Bluetooth always worked.
Until last Friday,when I got the iPhone X.
Like most people here,my phone paired,but not for long. The Bluetooth connection was constantly connecting and disconnecting.
I refreshed the Honda head unit. I've toggled the Airplane mode, I've toggled the " forget this device". I have paid with the number code.
Still doesn't work.
I called Hondas technical support and they are aware of the issues. They claim it's a IOS 11 issue that A is also aware of. This person mentioned that other car brands are having this same problem too.
I called Apple tonight and they too are aware of the issue. A case was opened for my call. Apparently the Bluetooth device used in the X is different than the other iPhones. So Apple is working with Honda. But they don't know if this is a software issue with IOS 11, the iPhone X,Honda,or a combination of all the above. My gut feeling is this is a software issue with 11. I was hoping that today's IOS software update might've corrected this issue. It hasn't.
Have to hope 11.2 will be better. Kinda crazy to spend $1k on a phone where the Bluetooth doesn't work.