[dalemyers]

On the one hand, Apple are significantly better at design than car manufacturers so this should be good. On the other hand, moving from something at least close to an RTOS to this does concern me. When your speedometer freezes, who is going to take the blame?

[dfadsadsf]

If your speedometer freezes on Carplay, I assume you can just unplug iPhone and get stock car speedometer. I would be concerned if iPhone controlled breaks, gas pedal or wheel but informational displays are fine.

In addition, I have VW Tiguan with glass cockpit (or whatever you call it when it does not have mechanical speedometer) for about 3 years and it froze on me a couple of times. The only way to fix was to turn off/turn on the car.

[tailspin2019]

Yep I'm curious what mode it goes into when the iPhone disconnects. Presumably there is some built in local processing in the car's "display" which continues to render the important bits of the UI without connected features and widgets?

[BonoboIO]

Full steering lock + time for inapp purchase ;-)

[ricardobeat]

I don’t know what they could be doing differently when CarPlay is activated, but I’ve never had it crash on me, and I’ve been using it almost daily for 3+ years.

The iPhone on its own has locked up a handful of times, as has the built-in VW entertainment system.

[tinus_hn]

What if your mechanical speedometer breaks? It happens, you shouldn’t crash because of that.

[AlotOfReading]

Firstly, there's a very good chance driving without a speedometer is illegal in your area.

Secondly, anything that affects functional safety should itself be vetted fron a FuSa perspective. I guarantee you that most manufacturers treat the instrument cluster as a Functional Safety item. If CarPlay can't bring the system to a state where that analysis is affected (which seems unlikely here), there's no issue.

That said, I'd probably use it.

[tinus_hn]

So is driving with a broken headlight. Yet we don’t demand headlights to be infallible.

[frosted-flakes]

You shouldn't crash, but it's not unheard of for the speedometer to fail.

Certain early-2000s GM speedometers were prone to breaking. Either the servo motors straight-up stopped working, or the label started peeling up and jammed the needle. My brother had several trucks from that era with this problem.