The phrase "emergency assistance button" refers to a special button or feature that can be pressed during an urgent or dangerous situation to quickly call for help. Full definition
It includes emergency assistance button, automatic crash notification, stolen vehicle assistance and remote door unlock. (carannouncements.com)
Two in - vehicle buttons connect the vehicle to a call center — one being the SOS Emergency Assistance button and the other an Information / Roadside Assistance button. (thetorquereport.com)
Safety features include 10 airbags, stability control, Emergency Assistance Button, and a system that, in the event of a severe accident, notifies an agent who will attempt to contact the driver and can send help if needed. (kbb.com)