I see no problem ...
A child suddenly runs into the path of your car. Simply touch the "Main menu" button on the touchscreen, go to page 2, select "Other" then "Motion Control." Now select the "Braking system" menu item. Ensure that ABS is set to "Active" (if not return to the main menu and set it (in the "Auxiliary services" menu). Then touch the "Emergency brake" button. When the next screen appears requesting timing information, press "Immediately". There will be a warning message about ensuring that your seat belt is secure. Touch "OK". Then again at the "Are you sure?" message. The car will then be brought to a stop as quickly as possible.
What's so difficult about that?