Apple CarPlay and iOS 27 have problems with Toyota cars in 2026. The fix is to go wired!

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Most Toyotas in recent years have supported wireless Apple CarPlay, but I (and others) have hit something of a tech wall with iOS 27 on our phones. Apple's constant improvements to Wifi security are causing the Wifi Direct used by Toyota head/multimedia units to drop the connection every minute or so - it has been very annoying.

Gemini says:  

"Because the car's head unit isn't an internet router, iOS 27's privacy rotation features on local Wi-Fi channels cause the Toyota system to repeatedly drop the handshake thinking the hardware ID changed"

Which sounds eminently plausible. And the trouble is that Toyota's software update regime is an order of magnitude slower than Apple's. If we're lucky then there might be a fix for existing cars at the next annual service. So many people are stuck.

The fallback is actually a blessing though. When I bought my Yaris Cross, the sales exec said that he always used WIRED CarPlay in his Yaris. I thought "What a faff, I'm living in the future, I'm going to go wireless!" at the time and have done so since purchase in 2024.

But there's a huge benefit to plugging in that Type C cable into the bottom of my iPhone - charging! All the while I'm driving, my iPhone is being topped up so that battery anxiety is non-existent. I know it sounds obvious, but being able to combine battery charging with rock solid CarPlay turns out to be a very sweet combination, especially in light of the recent iOS 27 wireless compatibility issues.

As to how to set it all up:

  • The physical - I have my iPhone magnetically attached to a UGreen windscreen suction mount. And I take the excellent Toyota-supplied multi-cable from the dedicated car data/charge socket over the steering column section and thence into the bottom of the phone. When not connected, this cable dangles out of sight to the column's right.
     
     
     
  • Getting the Toyota head unit to forget - the car defaults to wireless connection every time it starts up, so it's important, as a one time action, to go into Bluetooth settings on the car's display and delete the iPhone as paired device. Ditto on the phone, head into Settings/Bluetooth and delete the pairing for 'Toyota multimedia'. 
  • Waiting a beat - with no pairing in place, around ten seconds after the car starts up and the head unit has booted (so yes, wait just a moment while you put on your seat belt or similar!), plugging in the Type C cable into the bottom of the iPhone pings the car via USB and CarPlay is then established. The first time you do this, there's an 'Allow CarPlay'-style prompt, but it's all automatic after that.
After a week of testing wired CarPlay, there's no real downside that I can see - everything works better and faster (no wireless delays on media) and the phone's always being topped up, so it's a win-win.


It's a shame that Toyota forced its users into this, but in fairness, the Wifi Direct incompatibility was started at Apple's end and it will take Toyota many months to diagnose the issue, fix and test the head unit software and then roll out upgrades via its dealers.

I'm happy again, anyway!

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