CITROËN DS 4 Handbook page 35

Warning/indicator lamp is on
fixed in the seat belt
Passenger's
and passenger's front
airbag system
airbag warning lamps
display.
fixed.
Stop & Start
flashes for a
few seconds, then
goes off.
Cause
The control switch, located in the
glove box, has been placed in
the "ON" position.
The passenger's front airbag is activated.
In this case, do not install a rearward
facing child seat on this seat.
When the vehicle stops (red lights,
traffic jams, ...) the Stop & Start system
has put the engine into STOP mode.
STOP mode is temporarily
unavailable.
or
START mode is invoked
automatically.
Action/Observations
Move the control switch to the "OFF" position to
deactivate the passenger's front airbag.
In this case, you can install a rearward facing child
seat, unless there is a fault with the airbags (airbag
warning lamp on).
The warning lamp goes off and the engine restarts
automatically in START mode, as soon as you want to
move off.
For more information on Stop & Start, refer to the
corresponding section.
33
Monitoring