Q: iPhone 6 bluetooth not working correctly with Nissan

I'd be frustrated too.  Sorry 

Resetting network worked for my iPhone 5s with iOS 8 and Jabra Pro headset. The button now works again. (Prior to this, tried updating firmware and resyncing but did not work)

I managed to get mine to work by deleting pairing i both car and phone then doing a settings reset yay !!!

Then turned phone off and on again.... back to the same issue as before

My iPhone 6 is doing the exact same thing to my 2014 Nissan Xterra, Motorola headset, and my Freedom Spirit headphones. All will connect. I can't hang up the call from the headsets or talk to the person through my car speakers. Took the phone to Apple only for them to tell me all 3 were broken. I think not when all 3 worked fine with my iPhone 4s on Thursday. I took the car to Nissan on Saturday, they couldn't figure out what was wrong with it. Apple said the only thing they can test is if the accessories are connecting to the phone, which they are, so Apple feels it is not the phone's problem. Bullswanky if you ask me.

Same problems here with iPhone 6 and 2014 Toyota RAV4.  Apple says "not us", Verizon says, "Toyota's fault" and Toyota's Entune Support says, "Verizon's fault."  I just got a call back from the service manager at my Toyota dealership from where I purchased my vehicle last month and they want me to come in tomorrow at 5:30 p.m. to see if they can figure anything out.  At least they aren't pointing any fingers (yet) and genuinely seem like they want to help.  My gut feeling is that this rests solidly on Apple's shoulders.

Up until Friday when I got my iPhone 6, my iPhone 5s running iOS8 was working just fine. 

I Agree ... I thought it was working then it died in the middle of a call again. It has to be the phone or incompatible Bluetooth versions.

I had the same issue (iPhone 6 - 2013 MB SL) I disabled the Touch ID & Passcode and the bluetooth is working perfectly!!!

Very interesting.  I will try that and see if it works.  If so, disabling Touch ID could work for me but not disabling the passcode also.

I had the exact same issue with my 2011 Mercedes Benz E350. I thought it was the car and was going to schedule an appointment with the dealership service department.  Fortunately while on a business trip today the exact same thing occurred in my rental car (2014 Chevrolet Camaro). I took the phone back to the Apple store. They were reluctant to swap it out but I insisted. The replacement phone works just fine. The technician at Apple insists that the issue is because the automakers need to update their software. Regardless, it's annoying and widespread.  I have also reported this to Apple. It's almost like the phone is stuck trying to make a call.

II'm in the apple store now as I type this, they told me to restore my phone back to factory settings , and instead of restoring it from my 5s, manually drag all my apps , music , photos from iTunes one by one!!!!! Maaaaaaaaaaaan that's going to take for ever!!!! I have 40gig worth of stuff to transfer over!! They were no help!

Same exact problem.

iphone 6 worked great with my 2014 impala.

When I got home I restored my new iphone6 from my iphone5 backup (iphone5 was ios8) using iTunes.  This way I would get my apps data etc.

deleted and re-paired bluetooth in my car (tried like 20 times).  It connected but was unworkable, and then showed disconnected.

Factory reset iphone6, deleted and re-paired once.  Works perfectly.

There must be a defect with the upgrade or settings coming down from icloud.

Just got the iPhone 6 on Saturday. But I can't get the phone to work on my bluetooth on my 2014 Dodge Ram and it worked before on my iPhone 5. The phone will detect the car's bluetooth signal, and says it's connected, but calls aren't audible via the car stereo system, but rather the phone itself. And if I don't turn the bluetooth off, my car thinks I'm still on a call and the radio won't work and will not allow me to access my music either in bluetooth. I don't know but Apple needs to address this issue fast we spend a lot of money on these phones to have important features like this to work correctly and properly for the safety of everyone.  It cannot be a vehicle issue when you have so many different year and brands having the same issue. I've tried deleting pairing on the phone and car and didn't work, I tried reseting network settings and that didn't work and I tried resetting using power button and home button and didnt work. So What's Next APPLE???

Solution found!  I could NOT get my bluetooth to work on my iPhone 6, but my wife's exact same phone WOULD work.  Chatted with AppleCare. . . AND. . . It was my case!  Took the case off, bluetooth and wifi is working like a CHAMP! 

My case was a Speck "Candy Shell" that I bought at Best Buy this weekend.  It is being returned. . . . . 

If this problem of Bluetooth connectivity is affecting you, take off the case. . . .

I did what ever everyone suggested, reset all setting, reset network setting, deleting from car memory.   It's works fine after you reset it and reconnect to the car with fresh new connection at first, but after I power the phone off and turn it back on, boom the problem comes back.  It's got to be a IOS 8 issue.  I did this 3 times and I am getting sick and tired of it so I am going to restore and set up as a new iPhone from Itune and wait and see how Apple is going to fix this issue.

I have 3 cars and the Bluetooth is having the same issue on all of them, work first then no more even with the suggest tricks.  I hate my iPhone 6 now.

2011 Lexus ES

2011 Subaru STI

2012 Mercedes E350

Oh I forget to mention, My wife's iPhone 5 with IOS 8 have no issue at all with all 3 of the car. Only my iPhone 6.

I have the candy shell too, but how can a case effect the bluetooth? don't make sense.  Like I mention, it works first then don't work after the phone got power cycled.  This is with the case on. Oh and I have no problem with WiFi, with the case on.