iPhone 15 Pro Max Carplay Issues

Jeep grand cherokee 2018 and iphone 15 pro. had same issue, would charge but not connect to apple play. I just updated my iphone to 17.1.1 and problem solved, so far. i am using the anker cord. https://www.amazon.com/dp/B0BPCZLFS4/ref=dp_iou_view_item?ie=UTF8&th=1

hope this helps someone.

I have the same or similar issue. What was so frustrating is that the problem seemed to be very intermittent.

Technical Details:

2018 Honda Accord - iPhone 15 Pro Max, SW 17.1.1 ( plus some earlier versions)

Problem:

1) Sometimes it connects to Carplay and it will work.

2) Sometimes it will connect and then disconnect, connect and disconnect.. (to include the charging of the phone)

3) Sometimes it will connect and the carplay will not connect, but it will charge the phone.

Troubeshooting:

I tried several USB-C cables to include a standard Apple USB-C with a couple of different USB-A to USB-C adapters. The adpaters were the same brand, but different adapters. The cables and adapters tested good in other applications (e.g. connecting to computer) and charging from power outlet. These same adapters and USB-C cables worked with carplay sometimes.

Tentative Resolution:

I noticed what seemed to be a correlation between the charge percentage on the phone and when the issue happens. I am not sure if there is an exact % charge level, but it appears that it happens when the charge is below 70% on the phone, but not when it is above that percentage. I haven't taken the time to try to pin it down to a specific %, but generally it seemed more likely to happen the lower the power level and I haven't yet seen it when the phone is closer to fully charged.

Been using usb-a to usb-c cable and not a single issue for last 4days.

Since update 17.2 my phone has connected every time with my 2022 Jeep JLU. Hope it’s fixed for everyone else! 🤞

Nothing to do with your vehicles. Now that the 15's have been out a week, LOTS of different vehicle discussion forums are full of threads about iPhone 15 pro - Apple CarPlay not working.

I am waiting for my telephone appointment with my senior tech rep Sunday morning. When I last spoke with him Thursday, he said Apple wanted more logs. Not sure if they are already aware of the problem, why they need more logs from my '22 JL Rubicon.

As an aside, I have not even attempted to see if there is a problem with the iPhone 15 Pro in my brand new '23 MB GLA45 AMG with CarPlay. At least it only has USB C.

Return that adapter and get your $29 back. I sent mine back & Apple received it. Still waiting for my CC refund.

Thus far, only the Anker and Amazon Basics USB A to USB C cables I posted on a previous thread here have worked.

Luckily, I am on vacation for 9 days and not dealing with this frustrating CarPlay issue. I am hopeful Apple will have a software update that fixes this by the time I get home.

I called a Lexus dealer and found out the problem. The USB C code that came with the iPhone 15 Pro was not fast enough to push the CarPlay app. I had to buy a fast-charge USB C code. The problem is solved.

I had an Iphone 13 pro max and did not have any problems with car play on my Jeep 2020. Now with the new Iphone 15, the phone connects and starts charging, but car play doesn't start up. I have to unplug and plug back in a few times before it finally connects. My friend also experiencing same problem with her carplay and Iphone 15. I have also tried different cables and nothing works like before. I have a feeling this is a software issue. If the phone charges, it's not a port issue. I hope apple updates the phones to function the way they should. It's frustrating.

Abandoned the above posted as problems continued. I got a new tech support rep from Apple. He sent me a Belkin Thunderbolt 3 to Thunderbolt 3 cable. It is super stiff, but I achieve a connection to Apple CarPlay 75% of the time. I need to tether my iPhone 15 pro with an unlocked screen before starting my ‘22 Wrangler Rubicon 8.4” UConnect. It achieves connection quickly.

thus far (since September) this is the best CarPlay results I have had with my 15 Pro.

Tested the cables (old Apple usb-c, new one that came with the phone, new 2m Apple one and one non-Apple USB-C that sat unused in my house that is for high data transport and charging) in my 2022 Buick Enclave. All worked with no issues. I personally rarely use the ports in my car because I have an OEM wireless charging pad and wireless CarPlay but keep cables in the car just in case someone else needs to charge their device in either the USB-C or USB-A ports. Not sure what the issue for those of you having problems may be but it’s clearly not a universal problem or everyone no matter what would be experiencing it. Numerous things could be the problem…the ports in the car, the head units, an update for the head unit may be needed which the manufacturer would need to address…an issue with iOS 17…etc. But this happens every time a new iPhone and iOS is released. A flood of threads on here pretty much echoing the exact same issues you all are having. But it’s always not universal (I have never had an issue in any of our vehicles…most were strictly wired CarPlay and charging. Various brands through the years…one with an aftermarket head unit). Sometimes it was the cables used (in the past in some cars if you were using a 3rd party non-MFi cable you had issues. Some cars it was an update needed from the manufacturer for the radio. Some cars the actual ports were the problem…I think due to low power but I can’t recall). So it’s possible that the problem is not Apple. Hopefully y’all find a fix. Best case scenario would be that it’s just an iOS update that can fix things or your manufacturer releases an update that you can install OTA or via SD card without needing to have the service dept do it. In the meantime if you haven’t reported it to Apple already do so. Contact CS for support (even if you think it won’t work you still need to try the troubleshooting to eliminate doubt). Contact the manufacturer also. Check user forums for your vehicle to see what the buzz is (there will absolutely be chatter because realistically there will be owners that use an iPhone somewhere in the masses).

Do you see the issue when your phone is mostly charged (e.g. 80%). I think the issue happens with the phone has a low % charge. Not sure where the break point is, but check at 30% or less and again at 80% or more.

I tested this after reading your post. It worked!! I will test again tomorrow. All I did was let the vehicle start up fully then plug the phone in after and car play connected and stayed on