CITROËN DS 4 Handbook page 34

Warning/indicator lamp is on
fixed.
diesel engine
pre-heating
Automatic wiping fixed.
fixed.
Lighting dimmer
Cause
The ignition switch is at the
position (Ignition on) or the
nd
2
"START/STOP" starting button has
been pressed.
The wiper control is pushed
downwards.
The lighting dimmer is making an
adjustment.
Action/Observations
Wait until the warning lamp goes off before starting.
Once it goes off, starting is immediate, on condition
that the brake pedal remains pressed with an
automatic gearbox, or the clutch pedal is pressed fully
down with a manual gearbox.
The period of illumination of the warning lamp is
determined by the ambient conditions (up to about
thirty seconds in severe winter conditions).
If the engine does not start, switch the ignition off and
then on, wait until the warning lamp goes off again,
then start the engine.
Automatic front wiping is activated.
To deactivate automatic wiping, operate the control
stalk downwards or put the stalk into another position.
You can adjust the level of illumination of the
instruments between 1 and 16.