Before revision: It is activated when the vehicle drops below a certain speed or becomes stationary, , and will cause all of the vehicles doors to automatically lock, to prevent against thieves stealing the vehicle when it is stopped, for example at a traffic light or pedestrian crossing .
After revision: It is activated when the vehicle drops below a certain speed or becomes stationary , and will cause all of the vehicles doors to automatically lock, to prevent against thieves stealing the vehicle when it is stopped, for example at a traffic light or pedestrian crossing