CITROËN C4 Handbook page 38

Instruments
Starting prevented
Every time the ignition is switched on, the
SERVICE and engine diagnostic warning
lamps come on and the UREA warning lamp
flashes, accompanied by the temporary display
of "NO START IN" and 0 miles or kilometres -
("NO START IN 0 miles" means "Starting
prevented").
You have exceeded the authorised
driving limit: the starting prevention
system inhibits engine starting.
To be able to start the engine, you must call on
a CITROËN dealer or a qualified workshop.
36
Distance recorders
The total and trip distances are displayed for
thirty seconds when the ignition is switched off,
when the driver's door is opened and when the
vehicle is locked or unlocked.
Total distance recorder
Measures the total distance travelled by the
vehicle since its first registration.
Trip distance recorder
Measures the distance travelled since it was
last reset to zero by the driver.
F With the ignition on, press and hold this
button until zeros appear.