It doesn't because Tesla's FSD model is just a rules engine with an RGB camera. There's not "purpose" to any hallucination. It would just be a misread of sensors and input.
Tesla's FSD just doesn't work. The model is not sentient. It's not even a Transformer (in both the machine learning and Hasbro sense).
I dont think its true? They use convolutional networks for image recognition and those things can certainly halucinate - e.g. detecting things that are not there.
https://twitter.com/maxhkw/status/1373063086282739715?s=52&t...
But of course, as you say, that system does not consume actual raw (camera) sensor data, instead there are lots of intermediate networks that turn the camera images (and other sensors) into red lights, lane curvatures, objects, ... and those are all very vulnerable to making up things that aren't there or not seeing what is plain to see, with no one quite able to explain why.
Or maybe when I get a bug report today I’m going to tell them the software is just hallucinating.