CITROEN 2013 DS4 Owner's Handbook Manual page 66

Type 2 central instrument panel screen
Information displays
 Press the button, located at the end of the
wiper stalk
or
 turn the thumb wheel, located on the left of
the steering wheel ,
to display the following information in turn:
● reminder of the speed,
● instantaneous information,
● trip "1" ,
● trip "2" ,
● information on the current audio source,
● black screen,
● navigation-guidance messages.
- Display of instantaneous information with:
● the range,
● the current fuel consumption,
● Stop & Start time counter,
- Display of trip "1" with:
● the distance travelled,
● the average fuel consumption,
● the average speed,
for the first trip.
- Display of trip "2" with:
● the distance travelled,
● the average fuel consumption,
● the average speed,
for the second trip.