Which driver assistance systems do you have to manually activate to assist you in specific situations?

You answered correctly. Both the active park assist and the adaptive cruise control must be manually turned on by the driver before they can help in specific driving situations. These systems do not operate automatically; you need to activate them as needed. The emergency brake assist, however, works automatically when it detects an emergency and does not require manual activation. This distinction helps ensure that drivers only rely on these features when they purposefully choose to use them. Always remember to actively enable systems like parking or adaptive cruise control when you want their support.