Like Super Cruise, Ultra Cruise is a Level 2 self-driving assist, which still requires the driver to be responsible for safely operating the vehicle. However, it differs from Super Cruise (which only works on certain roads) by being able to operate on most public paved roads in the United States. This includes rural roads, city streets, and narrow urban roads.
It relies on over 20 sensors, LiDAR, radars, and cameras. These systems are controlled by a new computer system and driver attention setup, which also monitors whether the driver is paying attention behind the wheel.
However, GM concedes that bad weather and roundabouts still pose a challenge to the technology, which is claimed to be operable in 95% of all driving situations.
