gnuarm
Model X 100 with 72 amp chargers
I agree with your complex scenario.
Similarly, a pedestrian hit by a car can first get compensation from the driver. When the driver's insurance is not enough, the plaintiff can also sue the city because of the road condition, paint markings, traffic lights that allow drivers to turn right when red...
The victim can also sue the manufacturer of the traffic cameras that distracted the driver and the pedestrian got hit as the result. Also the painter who painted the sign that traffic cameras are used in this intersection too! The driver read the sign and got distracted! How else the pedestrian got hit?
So, it's not just a driver, car manufacturer, city but anyone else can be sued too.
But the first answer for a Tesla owner about who's responsible is: The manual owner says Tesla does not accept responsibility when a driver is using Autopilot. So don't count on shifting the responsibility to the city, traffic camera company, traffic sign company...
You are hitting exactly on the point, but you still aren't grasping the reality. If a company could relieve themselves of product liability by writing a few words, then there would never be product liability. Why woudn't every company making any product with potential of safety problems simply write a disclaimer rather than improve their product?
Companies being held responsible for the products they sell is a matter of fact in the law. There is no "shifting" of responsibility. The issue is simply that the law requires products to be designed with safety in mind. Every company has the responsibility to make their products safe.