Calling it “full self-driving” is promoting it as being autonomous, regardless of what the disclaimers say. If it’s not capable of that, they should call it something else.
A counter example, the package of Cheezits says "made with 100% real cheese", even though they are not 100% cheese, cheese is the 3rd ingredient, below flour and oil, but of the cheese used in the product, it's 100% real cheese. (so it makes it a meaningless statement, I guess they mean "no artificial cheese flavoring")
If the car can't "fully" self drive, then it shouldn't be marketed as such. Call it "partially self driving", "assisted self driving" or whatever.
"To guide, control, or direct (a vehicle)."
My car has driver assistance features, it can do basic lane keeping, keep a set distance behind the car in front (even in stop and go traffic), and has emergency braking assistance. But no one would say that it's self-driving.
Tesla FSD can control the car from entering the highway to taking your exit (plus some support for driving on smaller streets).
But it's not autonomous, hands-free driving.
Taking the dictionary definition of fully:
"completely or entirely; to the fullest extent"
I would expect a fully self-driving car to drive for the entirety of any trip I wish to take. Anything less than that I would consider as "partial".
My car has limited self-driving, it can only do limited lane keeping or keeping distance from the car in front.
By that definition self-parking cars can also fully self-drive.
My definition of driving is being able to do all the tasks required to pass a driving test, i.e. driving around a city (intersections, roundabouts etc.), motorway, country road and car parks.
Made with 100% real cheese
Is clearly and unambiguously not the same as
100% cheese
But it is quite a good example:
A cheesit contains an ingredient that is 100% cheese.
A Tesla with FSD mode, is a car that has a feature that is full self driving.
If that mode cannot handle all conditions, then it is not full self driving. That means no “I’m confused” switch to a human driver.
Given that Tesla hasn't been sued into oblivion by drivers who got into accidents by incorrectly treating FSD as autonomous driving, I think the argument will hold up in court.
Autopilot is an advanced driver assistance system that enhances safety and convenience behind the wheel. When used properly, Autopilot reduces your overall workload as a driver. Each new Tesla vehicle is equipped with 8 external cameras, 12 ultrasonic sensors and a powerful onboard computer provide an additional layer of safety to guide you on your journey. Model 3 and Model Y built for the North American market have transitioned to camera-based Tesla Vision, which are not equipped with radar and instead rely on Tesla’s advanced suite of cameras and neural net processing to deliver Autopilot and related features. Model S and Model X continue to be equipped with radar.
Autopilot comes standard on every new Tesla. For owners who took delivery of their cars without Autopilot, there are two packages available for purchase, depending on when your car was built: Autopilot and Full Self-Driving Capability.
Autopilot and Full Self-Driving Capability are intended for use with a fully attentive driver, who has their hands on the wheel and is prepared to take over at any moment. While these features are designed to become more capable over time, the currently enabled features do not make the vehicle autonomous.