The phrase "active roll" means taking initiative and being involved in a particular situation or task. It implies being proactive, engaged, and responsible for one's actions. Full definition
Like my colleagues, I was impressed with the optional active roll stabilization system, which kept the large car level and planted during hard driving. (automobilemag.com)
The combination creates active roll control and adaptive damping. (extremetech.com)
The car also comes loaded with touches like the direction adapting headlamps and active roll bar system that spring into action in case of a roll over. (cardekho.com)