CITROEN DS3 Owner's Handbook Manual page 33

Trip computer
System which provides current information concerning the route travelled (range, consumption...).
Monochrome screen C
Data displays
Press the button, located at the end of
the wiper stalk , to display the various trip
computer tabs in succession:
- the current information tab
with:
consumption,
be travelled.
- the trip "1" tab with:
consumption,
first route.
- the trip "2" tab with:
consumption,
second route.
Pressing the button again returns you to
the normal display.
Trip zero reset
When the route required is displayed, press
the control for more than two seconds.
Trips "1" and "2" are independent but their use
is identical.
Trip "1" permits, for example, daily calculations,
and trip "2" monthly calculations.