Iphone won't connect wirelessly anymore

[pollybampton]

My iphone won't connect wirelessly to my 2025 ct4s.
There was sn update that i allowed on the car today. No idea what it was. Must have come out over the past 8 days.
Won't connect to my wifes iphone either.
It does recognise both phones but struggles to complete.
Meanwhile my iphone says I am /I'm not connected. Driving me insane. Have tried renaming my iphone. Same thing. Have switched everything off and on. No good.
I can connect via usb.
Any clues anyone? Anyone have the same issue?
uk based.
Many thanks
P

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[mkg3]

Try couple of things.

First, cycle the BT on your iPhone on and off. If that doesn't work, delete (Forget this device) and reconnect with your vehicle to see if that works.

Good luck.

 

[pollybampton]

Try couple of things.

First, cycle the BT on your iPhone on and off. If that doesn't work, delete (Forget this device) and reconnect with your vehicle to see if that works.

Good luck.

Did all that. In different sequences. Having been brought up with Macs, it's what you do i guess. Nothing seems to work. I was hoping that someone had a similar problem with the update and was a "known" problem. Even drive the car to a place away from home that has better reception. My house is near a known blackout spot. Still no improvement. Phones get to the pairing stage then the whole set up falls apart.
Thanks

 

[trycan]

My iphone won't connect wirelessly to my 2025 ct4s.
There was sn update that i allowed on the car today. No idea what it was. Must have come out over the past 8 days.
Won't connect to my wifes iphone either.
It does recognise both phones but struggles to complete.
Meanwhile my iphone says I am /I'm not connected. Driving me insane. Have tried renaming my iphone. Same thing. Have switched everything off and on. No good.
I can connect via usb.
Any clues anyone? Anyone have the same issue?
uk based.
Many thanks
P

I am currently experiencing the same thing. No phone / carPlay starting yesterday. I didn't install an update, it just stopped working.
I've had constant connectivity problems with this car in just about 2-yrs of ownership. Car has no connection to My Porsche app.
I've taken it for service 3 times, and they can usually get it reset, but it konks out again within a few weeks.
I used to have steady CarPlay, even though nothing else connected, but now even that's gone.

Lifting the 12V negative battery cable for ~30-min can reset things for a little while, but that's annoying to do.

 

[Torv]

My iphone won't connect wirelessly to my 2025 ct4s.
There was sn update that i allowed on the car today. No idea what it was. Must have come out over the past 8 days.
Won't connect to my wifes iphone either.
It does recognise both phones but struggles to complete.
Meanwhile my iphone says I am /I'm not connected. Driving me insane. Have tried renaming my iphone. Same thing. Have switched everything off and on. No good.
I can connect via usb.
Any clues anyone? Anyone have the same issue?
uk based.
Many thanks
P

I had a very similar problem with my ‘21 Taycan 4S. In my case my iPhone repeatedly failed to connect to wireless CarPlay. The dealer ended up replacing the PCM to the tune of $6000 (fortunately covered by my extended warranty). I suspect however that the problem was more mundane in that my AirPod Pro charging case was simultaneously plugged into the USB-C port in the center console. The tech at the dealer suggested hat the PCM was “confused” by the USB-C connection. I would suggest that nothing be plugged into the USB-C port in the center console.

 

[pollybampton]

FrQUOTE="trycan, post: 609042, member: 10393"]
I am currently experiencing the same thing. No phone / carPlay starting yesterday. I didn't install an update, it just stopped working.
I've had constant connectivity problems with this car in just about 2-yrs of ownership. Car has no connection to My Porsche app.
I've taken it for service 3 times, and they can usually get it reset, but it konks out again within a few weeks.
I used to have steady CarPlay, even though nothing else connected, but now even that's gone.

Lifting the 12V negative battery cable for ~30-min can reset things for a little while, but that's annoying to do.
[/QUOTE]

From google AI
Worth a try?


1. Reset the iPhone Network Cache
Because your phone is still clinging to the old, pre-update "fingerprint" of your car's Wi-Fi card, you need to wipe its wireless memory: [1, 2]

• Go to Settings > General > Transfer or Reset iPhone > Reset.
• Select Reset Network Settings. (Note: This will not erase your apps or photos, but it will erase your saved home/work Wi-Fi passwords and all Bluetooth pairings).
• While the phone restarts, ensure your phone's Wi-Fi and Bluetooth are manually switched ON. Do not manually connect to any network yet. [1, 2, 3, 4, 5]

2. Force the Car to Broadcast the New Profile
The car’s wireless module needs to completely power down to apply the new update changes: [1]

• Turn off the Taycan completely, get out, lock it, and walk away for 5 full minutes with the key fob out of range.
• This forces the vehicle modules into a deep sleep, clearing out the background update fragments. [, 2]

3. Establish the New Wireless Handshake

• Return to the car, turn it on, and do not plug in the USB cable.
• On the Taycan screen, go to Devices > Connect New Device.
• On your phone, open Settings > Bluetooth. Tap the Taycan option when it appears.
• Crucial Step: Keep your eyes glued to your phone screen. Accept the pairing codes and wait for a final Apple popup asking, "Use Wireless CarPlay?". Tap Allow immediately. [1, 2, 3, 4, 5]

If it successfully links up after doing this, you are good to go. If it loops back to failing, let me know if your vehicle uses a Personal eSIM or a Porsche Wi-Fi Hotspot data package, as security updates sometimes alter those specific privacy settings.

 

[pollybampton]

UPDATE!
It's now working.
I pressed the voice button on the steering wheel and a whole new way of connecting to carplay opened.
Still had to press a few buttons and it works.
Now, whether it works when i start the car again is another question....
Thanks to everyone who offered advice.

 

[gnr3312]

I had a very similar problem with my ‘21 Taycan 4S. In my case my iPhone repeatedly failed to connect to wireless CarPlay. The dealer ended up replacing the PCM to the tune of $6000 (fortunately covered by my extended warranty). I suspect however that the problem was more mundane in that my AirPod Pro charging case was simultaneously plugged into the USB-C port in the center console. The tech at the dealer suggested hat the PCM was “confused” by the USB-C connection. I would suggest that nothing be plugged into the USB-C port in the center console.

FWIW my iPhone can connect wirelessly while my wife’s iPhone is cable-connected to charge. Hers shows up as a media source with an icon of an iPod.

 

[Torv]

FWIW my iPhone can connect wirelessly while my wife’s iPhone is cable-connected to charge. Hers shows up as a media source with an icon of an iPod.

To avoid confusing the PCM, the dealer suggested charging iPhones and/or the AirPods via the rear seat USB-C ports as thy are not connected to th PCM.

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