How can I fix Wi-Fi and CarPlay issues on iPhone 17 Pro Max?

Hi, I just received my new iPhone 17 ProMax, and I have these Apple CarPlay disconnections, even if I tried with different cables, I can`t have a stable connection. Before i had 14 ProMax with a lightning port, having no issue, and now with this type C is a nightmare. If this issue isn`t fixed soon, I will return the phone because it is not acceptable; we pay for some devices to be functional.

I just bought one of those plug in Bluetooth emulators to bypass for now. This really seems to be a long term trouble shoot going on. I just miss ability to charge and use Apple play at the same time.

Hope this helps someone including Apple:

iPhone 17 Pro - Wired CarPlay kept dropping constantly, every few minutes, from day one. Upgrading to iOS 26.1 did not solve the issue. Used multiple different USB A to USB C cables from good manufacturers like Anker with no help to fix the problem. Never had any issues with my previous iPhone 13.

From reading an online comment I purchased a Beats (owned by Apple) USB A to USB C cable as a last resort. My phone now works perfectly in wired CarPlay, been 6 hours plus and not one disconnect.

Thanks, I also have a JoyAuto — I’ll reach out to their support team.

My last update was about two months ago, so I hope the one you mentioned is more recent.

I’m using a 17 PRO MAX 26.1 — what hardware are you using on your side?

It’s a wireless JoyeAuto for Porsche for the CDR radio (I don’t have a PCM so my options are limited) - but the wifi adapter is the same on almost all of their after market systems.

The update is dated November so it’s definitely more recent than yours. Don’t be distracted by their awful version numbering either. It may look like the same version but it isn’t. It’ll have November somewhere in the wireless firmware version.

EDIT: my iphone is a 17 Pro running 26.1

Also have a JoyeAuto system… When this first started happening they stated it was an apple issue. I just sent them another message today to see if they have an update! Fingers crossed and will update this thread if they have and it fixes the issue

This is the file directly from JoyeAuto (it's their Drive folder, not mine):

https://drive.google.com/drive/folders/1ZoCMw6iPd53m6-9TeM6rgzNNHU4A1Q54

*** USE AT YOUR OWN RISK, I am not responsible if you brick your system ***

** SCAN FOR VIRUSES ** (my scan turned up clean)

This is only for JoyeAuto aftermarket systems!

same here. I would rather say Apple may listen but incapable to resolve it yet.

I wonder if this is an HW issue and they haven’t found a good way to workaround it by iOS update.

then next question is, will Apple recall our problematic iphones if it was not fixable?

I have gone through most comments and none of them have the issue I do with CarPlay everything works fine except Calls I can’t hear the person on the other side but they can hear me I literally have to put them on speaker 😢

That seems more like the car head-unit microphone issue. In my case the air blowing out of the AC suppresses microphone voice capture. I have to switch off the blower sometimes so that other side can hear me clearly. Maybe a car mechanic can help.

Dr.Anmar wrote:

CarPlay has worked reliably in our two cars since iOS 26 was first released

I guess users complaints are focused on iPhone 17 series, especially iPhone 17 Pro and Pro Max, not iOS 26. I myself, I have no issues with iOS 26 on my iPhone 15 Pro Max.

Besides, for those insisting it has to be fixed by the car manufacturer: who will pay for me the costs for the firmware update and for the precious time I am losing in the process?

Sorry, but not buying a device with more than a grand to be informed afterwards that "I must ask for a car infotainment software repair" for a modern infotainment software that is already working perfectly fine with every other older iPhone models and ALL Android phones, and not paying extra penny for that!

And not only that, Apple did not mention anywhere that their new models and chips may have CarPlay compatibility issues with multiple car brands and models!

I should have mentioned, we have iPhone 17 Pro and 17 Pro Max. And I have many other friends with iPhone 17 Pro models. None of us are having CarPlay issues at all. Again, this is a complex issue.

I've just posted my update on the issue, but I got this email

"Apple Support Community

Hi felipedru,

Thanks for participating in Apple Support Community.

We removed your post “How can I fix Wi-Fi and CarPlay issues on iPhone 17 Pro Max?.” 

"

I'd say that Apple not only will let us down, but also gets frustraded when we share our bad experience with the community.

Does it sound like Apple?! ABSOLUTELY!

felipedru wrote:

I've just posted my update on the issue, but I got this email

"Apple Support Community

Hi felipedru,

Thanks for participating in Apple Support Community.

We removed your post “How can I fix Wi-Fi and CarPlay issues on iPhone 17 Pro Max?.” 

"

I'd say that Apple not only will let us down, but also gets frustraded when we share our bad experience with the community.

Does it sound like Apple?! ABSOLUTELY!

And you can count on your new post being removed as well. You clearly never read the terms of use for this forum --> Apple Support Communities Use Agreement - Apple Community

This isn't a social media forum. This is a technical support forum to ask your fellow users for help. If you want to bash Apple, this is their house, even if they don't participate. Take your comments to an actual social media site like Quora or Reddit.