CITROËN DS5 Owner's Handbook Manual page 35

Deactivation indicator lamps
If one of the following indicator lamps comes on, this confirms that the corresponding system has been switched off intentionally.
This is may be accompanied by an audible signal and a message in the instrument panel screen.
Warning/indicator lamp State
Passenger's fixed in the instrument
airbag system panel and/or seat belt
and front passenger's
airbag warning lamps
display.
DSC/ASR fixed.
Cause
The control switch, located in the
glove box, is set to the OFF position.
The passenger's front airbag is
deactivated.
The button, located at the bottom
right of the dashboard, is pressed. Its
indicator lamp is on.
The DSC/ASR is deactivated.
DSC: dynamic stability control.
ASR: anti-slip regulation, or traction
control.
Action/Observations
Set the control to the "ON" position to activate the
passenger's front airbag.
In this case, do not fit a child seat in the rear-facing
position.
Press the button to activate the DSC/ASR. Its indicator
lamp switches off.
The DSC/ASR system is activated automatically when
the vehicle is started.
If it has been deactivated, the system is reactivated
automatically from approximately 30 mph (50 km/h).
33
Monitoring