Cruise had lane following and smart cruise control, which everybody in the industry has and can be bought as an option on many high-end cars right now. They hyped this heavily and GM bought it.
That was surprising, because GM had a good self-driving effort with CMU, and had progressed to driving in Washington DC traffic autonomously.[1] That was way ahead of Cruise, and working in 2013. Then, somehow, GM totally blew it and lost that project, with the people going elsewhere.
[1] https://www.cmu.edu/news/stories/archives/2013/september/sep...