I think you've just identified the root cause of at least one set of problems. The essential control systems in a vehicle should ideally be separated from other vehicle functions to prevent interference, whether accidental or deliberate, from compromising vehicle safety. The approach now being taken by manufacturers with their always-online, increasingly automated cars may be undermining that separation, without necessarily having adequate safeguards in place to ensure safety and reliability are maintained.

Anyway, this is moot in most cars, as they don't have sold driving software anyway.

In this thread, I'm simply observing that there can't be a clear separation between control systems and information systems if we're going to achieve these kinds of autonomous functionality. We need a more nuanced solution.