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iPhone 13 Pro loses bluetooth connection to car 2-8 minutes after starting a phone call

I recently purchased a new iPhone 13 Pro (then exchanged for an iPhone 13 Pro Max) to replace my iPhone XR. Here is the info on the problem I am seeing for your developers:


Hardware: iPhone 13 Pro Max, running iOS 15.0.2

Car: 2016 Toyota Avalon


Steps to reproduce:

  1. Start Car
  2. Allow phone to connect with car via bluetooth.
  3. Start a phone call
  4. Connection between the car and phone fails anywhere from 2-8 minutes after the call starts.
    1. The phone call continues on the phone, but the car thinks the call has ended. After this point bluetooth functionality no longer works properly until I restart the car.


Other details:

- The phone has no issues playing bluetooth audio to the car. Issue only happens on phone calls.

- My old iPhone XR did not have this problem, but was not running iOS 15.


Steps I have taken to fix the problem:

  1. Stopped/started bluetooth service on iPhone
  2. Enabled then disabled Airplane mode on iPhone
  3. Re-paired the iPhone to the car after forgetting bluetooth settings on both devices.
  4. Restart iPhone
  5. Force restart iPhone
  6. Updated software on car
  7. Reset all settings on iPhone
  8. Disabled 5G (settings -> Cellular -> Cellular Data Settings -> Voice & Date = LTE)
  9. Exchanged my iPhone 13 Pro for an iPhone 13 Pro Max, still have the issue


The iPhone is unusable for calls in my car which is really frustrating. Hopefully someone out there has seen something like this and has a solution/workaround. Or maybe this will make it to the developers and they can try and fix the issue.

iPhone 13 Pro Max, iOS 15

Posted on Oct 27, 2021 6:20 PM

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Posted on Nov 8, 2021 7:43 PM

Today I ran another experiment. I still have my original (working) iPhone XR. I gifted it to my son when I upgraded to the iPhone 13 Max. Here is what I did:


  1. Upgraded the iPhone XR to iOS 15.1
  2. Connected the phone to my car
  3. Drove around on a call with the iPhone XR connected


At no time did the iPhone XR disconnect or drop the call that I was on. I drove in many spots where the iPhone 13 Pro Max disconnected/dropped calls.


I plan on running a couple more controlled experiments on my iPhone 13 Pro Max over the next few days. One when connected to bluetooth in our other car (not a Toyota) and another in my Toyota but not moving. We'll see what happens.


Hopefully someone at Apple will see this thread and find this info helpful when trying to fix/recreate the issue.

315 replies

Mar 8, 2022 6:47 AM in response to Moose_OSU

I don’t have an Apple Watch and my OS is updated but still having problems with my iPhone 13 max pro going in & out of connection with my car. VERY frustrating! When I’m in my car I never know whether a call is going to come through on my phone or my car, and it switches in the middle of a call. It also will not always disconnect from my car when I hang up. Totally inconsistent. I’m a Realtor and make my living in my car and on my phone. This needs a fix!

Mar 8, 2022 10:33 AM in response to Kmac10sg

Hi. The car was never my main issue. It was more a problem with the sound randomly becoming scrambled or garbled for 30-30 seconds while on a call no matter which Bluetooth device I was using, including car. I ended up buying a new watch and it’s ok now except it does disconnect from the car sometimes and switch to my airpod or to the phone if I don’t have an airpod in. I had a Series 2 watch. My beef was that I was not told the watch would not be compatible with the 13 pro. Apple says they are very transparent with that but I was never made aware of it. It took 3 months of phone calls, replacing the phone, resetting the phone multiple times during which I lost a lot of contacts and data until I finally figured it out myself after seeing someone comment they figured it out. Apple refused to even give me a discount on a new watch after years of faithfulness to Apple. Wasn’t planning on buying a new watch right now. Not happy

Mar 13, 2022 12:38 AM in response to pudgemo

My experience is less intrusive but more quantifiable: my watch loss connection every now and then on a regular basis. You may say this behaviour is because it is paired with a Galaxy Watch (sacrilegious ^.^) but every time it happened the App Radar COVID showed a warning telling it cannot work because BT was disconnected, so the disconnection came from the iPhone side, not the watch and I can easily could write down every single time it happens.


The reason I don’t spend more time with this issue it’s because I’m pretty sure Apple knows that this is happening but they don’t have any remotely idea why it’s happening, as usual. Some day the would release a patch with this very specific fix and end of history, as usual too.


It is not my first time with this kind of issues with iPhones.

Mar 25, 2022 1:55 AM in response to pudgemo

having same issues on with my new iPhone 13 Pro Max and holding calls in my Audi a4 Allroad (2014). Phone connects with the car, can make & take calls, but as soon as a WhatsApp message, SMS, e-mail is delivered the call is dropped from the bluetooth, but still functional on the phone, and then suddenly re-connects to the bluetooth 20-30seconds later. very frustrating.

IOS is 15.4.

Mar 27, 2022 10:22 AM in response to AIBE

Just found this thread, I’m also having connectivity issues in my car. iPhone 13 on IOS 15.4. Car is a Mazda 3 2014 model ( no CarPlay)

This is my third Mazda and my previous phones 6 and iPhone 11 , never had the issues I’m currently experiencing.


I have Apple Watch series 5, also latest software. I love to listen to audible and podcasts in the car through the phone. I have renamed the phone , unpaired Deleted the phone, re paired, reset phone and so on to no avail.

i rang apple Friday evening , was waiting on a follow up call yesterday however the call dropped ( ironic huh) so I’m still waiting , however on the phone they didn’t give me any idea on how to fix this as I have done everything as currently suggested on these forums!

can anyone help please !

May 10, 2022 2:42 PM in response to Valmazda14

Someone from Apple called me and he scheduled an appointment in the Apple store. That person deleted all my apps and reset my phone rather than using the set up from my last phone (I hope this makes sense). That, along with the last couple of IOS updates have worked for me.


I did however just purchase AirPods and hope to heck they will work! My first Bluetooth earphones.

May 11, 2022 2:05 PM in response to Valmazda14

I went through a couple of weeks of back and forth with them to troubleshoot my issue. Then 15.4.1 came out and the problem was solved. I can only surmise that the engineers got a handle on my issue, found a bug and fixed it. I have no proof of that other than the fact that I’ve had this issue for quite some time and it got to be important to me so I created a support request.

iPhone 13 Pro loses bluetooth connection to car 2-8 minutes after starting a phone call

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