Aspects of the present disclosure relate to a control system, system and method for controlling a transition between a first driving mode and a second driving mode of a vehicle. The present disclosure relates to receiving image data of an occupant of the vehicle; quantifying one or more characteristics of the occupant's gaze based at least in part on the received image data, the one or more characteristics being indicative of the occupant's attention to a non-driving task; determining a transition profile for transitioning between the first driving mode and the second driving mode based at least in part on the one or more characteristics of the occupant's gaze; and generating and outputting a control signal to transition from the first driving mode to the second driving mode, the control signal comprising instructions for controlling one or more vehicle systems in accordance with the determined transition profile.