ADAS levels range from 0 to 5, indicating the degree of automation in a vehicle. Level 0 means no automation, requiring full driver control. Level 1 includes features like adaptive cruise control. Level 2 offers partial automation with combined steering and acceleration. Level 3 allows conditional automation with some driver oversight. Level 4 features full automation in specific conditions, and Level 5 represents full autonomy with no need for driver input. https://www.carlelo.com/blog/adas-levels-explained