iPhone7 Bluetooth issue in the car

Sorry.. correction: "NOT hazardous"

Same issue on my side, iPhone 6s Plus, almost threw my phone out of my car... Absolute disaster after upgrading to 10.1.1. Tried to switch off the LTE network, so far it works fine now, but lets make a longer ride to confirm this solution would work or not. If not, thanks to Apple poor SW updates I can't use my built-in premium BT hands-free in my car, so phoning while driving is not an option as it is not allowed and also very dangerous. But most of us do some "phone work" while driving.

disregard

What is the proper way to clear the bluetooth cache?

I've been doing a lot of research into this over the past few weeks. As I suspected, it seems that the majority of people reporting this issue have the AT&T or T-Mobile versions of this phone (A1778/A1784). Additionally, as others have pointed out, the issue goes away when turning off LTE. Those models have an Intel modem. However, the Sprint and Verizon models (A1660/A1661) have Qualcomm modems. Those users do not seem to be reporting this issue, which leads me to believe this is specifically an issue with the Intel modems present in the AT&T and T-Mobile versions of the iPhone.

I have the verizon model and am experiencing the same issues as everyone else

I have Verizon and having the same problem.

I am happy (so far) to report that after the update I downloaded Tuesday the issue has gotten better the past two days my phone has paired within thirty seconds of me getting in the car.

I was able to resolve this with my Subaru (Clarion stereo).

In my case, the issue was ONLY with the iPhone 7plus (none of the iOS 10 updates resolved this). I did NOT have the problem with iOS10 on my 6plus. To recap:The bluetooth audio would not reconnect, but I could enter the bluetooth menu and select the car audio that was previously paired and it would hook right up. None of my other bluetooth devices had this issue, only the car. I had tried most of the suggestions in this thread and contacted support. For me, deleting the paired device, resetting network settings, rebooting, airplane mode, etc DID NOT WORK.

The solution was to find the "initialize" option in the car audio menu (it isn't in the bluetooth menu on my stereo). The "initialize" option seems to have cleared out whatever was getting in the way of the reconnection of my paired phone. I have had no issues for the past week.

Best of luck to everyone. I hope this helps.

I believe there are 2 main types of issues here.

1. Bluetooth connectivity: e.g. The car doesn't recognize the phone, or takes a long time for the car to recognize the phone.

2. Bluetooth audio drops: The car has no trouble recognizing the phone, but music suddenly drops, comes back, drops, sometimes speeds up to play catch-up, etc. All of this happens with the phone still connected to the car.

Problem #2 was OP's problem. From what I've seen, this is mostly, if not completely an AT&T model issue.

If you are on Verizon or Sprint and have issue #2, please post and describe.

So has anyone with an Infiniti (G37 specifically), iPhone 7+ and Verizon service been able to fix this problem? I just found this thread and haven't had the chance to try turning off LTE. I was thinking of checking with Infiniti for a firmware update, but since my iPhone 6+ worked just fine, I have to assume the issue is with the iPhone 7+.

I definitely have issue number 2 with my Infiniti G37 and am with Verizon. Music is choppy or music doesn't play properly and the track info doesn't appear on the screen.

I have a 2010 G37xs with a iphone 7+ 128gb on verizon, havent tried turning off the lte because i dont want to lose that coverage. Yesterday i unpaired and repaired and just left the bluetooth for calls on. So far so good, when connecting it with audio it would start stuttering so then i would have to close the music app, reopen it and it would work then. I just started using the cable thats much easier for now instead of messing with all the other stuff

Until this is resolved, I rather go the aux cable route instead of turning off LTE. To get this to work, did you delete the iPhone as a connected phone in the Infiniti settings and then just plug in with aux cable? Is it possible to use hands free/blue tooth calling while audio goes through aux?

Ya i deleted the phone thru the settings and then paired it again for the bluetooth voice calling, i use the cable for the audio portion. You most likely would have to have the bluetooth on while connecting it with the cable to take calls, not sure if that will work, your gonna have to try that out

I have a 2012 MDX as well, stopped by for a Genius appointment and was told to reset my network settings. Needless to say that did not solve the problem. Fix asap please!