Toyota’s Guardian system aims to help human drivers, not replace them
Among companies developing self-driving cars, Toyota is unusual in that it’s taking a two-pronged approach to the technology. The Japanese automaker is working on a system called Chauffeur takes over all driving duties. But it also has a system called Guardian that keeps human drivers in control most of the time. At CES 2019, Toyota explained how that is supposed to work.
https://www.digitaltrends.com/cars/toyota-guardian-autonomous-driving-system-ces-2019/