How does you change the speedometer from miles to kms in a grand c4 Picasso?

To change the speedometer from miles to kilometers in a Citroën Grand C4 Picasso, locate the settings menu on the dashboard display. Use the steering wheel controls to navigate to the "Settings" or "Vehicle" section. Look for an option labeled "Units" or "Speed Display" and select "Kilometers." Confirm your selection, and the display should switch to kilometers.