Bluetooth contact sync in iOS 10 not working properly

Before iOS10, I did used to see all of my Groups listed under All Contacts. I could select exactly which groups I wanted to sync to the car. I had one group just for the car, containing a selected number of addresses, which sync'd very quickly. Now, with All Contacts the only group option, it takes ages sync'ing the many many contacts I have on my phone. This is what I see now (below).

You see, I don't see the Show Notifications check, since my vehicle does not support the MAP protocol. As indicated in this post, and in others regarding Bluetooth profiles, Apple supports the Bluetooth standards and has to keep their software up to date. As those standards change, the ability to do certain things can change, and vehicle manufacturers are provided with copies of the software updates and are supposed to update their units, or advise their customers that their units do not comply with the latest versions of Bluetooth. You should complain to the vehicle manufacturer to keep up with the times, or to provide you with updates to your unit.

Yes I have this exact same problem as well with a 2015 C Class Mercedes.

Does anyone have any idea if this is a bug introduced in iOS 10 or a 'feature'?

I really hope that it is a bug that will be fixed in an iOS update.

Sounds like we are stuck. 2008 E60 here, same deal. No clue if I am calling an office, a cell, or a fax machine.

Same issue on my side with BMW - not being able to select specific contact lists.

iOS 9 was no problem. iOS 10 is now a problem.

Seems to be an Apple issue and not car issue.

I have the exact same isssue in a 2008 3 Series BMW. Its definitely an iOS 10 issue. My 6 displays no contact names, whilst my 5, which is on iOS 9.35 has no problems whatsoever.

I have the same issue. iPhone 7 with iOS 10 on 2009 BMW X5 4.8. I created a special contact group in the iPhone / iCloud. That group had about 300 contacts whereas the "All Contacts" list has over 2000 contacts. That group still shows under Groups in Contacts and in the Phone app, but it now longer shows on the iPhone Bluetooth connector that connects to the car in Settings/Bluetooth. Now it tries to sync all contact, but some of them sync up, and others don't. And its difficult to say which of them sync or don't. Its a shame (on Apple). Why try to fix something that was not broken? It worked fine with iOS9 on iPhone 5s.

Still not fixed in 10.2. Very frustrating.

Good news from me, I just got around to testing 10.2 in my BMW (2014 5 Series) and the group selection has returned. Yay!