While it might imply otherwise, the message is clear about the _hardware_ being ready for self-driving. That doesn't mean the car is capable of self-driving in general.
Sure. But this is the sort of thing that is in my view an instigator of escalating adversarialism. I recognize this kind of cagey language, but I also recognize that most people don't and I think it's absurd to demand that they do understand it. I put this in the category of false advertising and I think a jury of random people will side with the dead. Hence the defense's job will be to disqualify ordinary people who will go for connotation over denotation.
"This speaker's hardware is ready for stereo sound. The speaker is not capable of playing stereo music in general."
"This smartphone's hardware is ready for multitouch input. The phone is not capable of responding to multitouch input in general."