This is one of those things that might actually serve to push the notion that digital devices (including cars now) should be required to be capable of installing independent operating systems, especially open source ones.

I'd absolutely require military devices to be driven by open source software. And yes, that's a security liability, but security-by-obscurity is an even greater liability.

In the case of consumer devices, open-source access would be a means of protecting the end user from predatory software rife with dark patterns.