CITROËN C4 Picasso Owner's Handbook Manual page 256

Safety
Advice on child seats
The incorrect installation of a child seat in a
vehicle compromises the child's protection in
the event of an accident.
Remember to fasten the seat belts or the
child seat harnesses keeping the slack in
relation to the child's body to a minimum ,
even for short journeys.
For optimum installation of the "forward
facing" child seat, ensure that the back of
the child seat is as close as possible to the
backrest of the vehicle's seat, or in contact
if possible
The head restraint must be removed before
installing a child seat with a backrest on the
passenger seat.
Ensure that the head restraint is stowed or
attached securely so that it is not thrown
around the vehicle in the event of sharp
braking.
Refit the head restraint as soon as the child
seat is removed.
258
Children at the front
The legislation on carrying a child on the
front passenger seat is specific to each
country. Refer to the legislation in force in
your country.
Deactivate the passenger's airbag when a
"rearward facing" child seat is installed on
the front seat. Otherwise, the child would risk
being seriously injured or killed if the airbag
were deployed.
Installing a booster cushion
The chest part of the seat belt must be
positioned on the child's shoulder without
touching the neck.
Ensure that the lap part of the seat belt
passes correctly over the child's thighs.
CITROËN recommends the use of a booster
seat which has a back, fitted with a seat belt
guide at shoulder level.
As a safety precaution, do not leave:
- one or more children alone and
unsupervised in a vehicle,
- a child or an animal in a vehicle which
is exposed to the sun, with the windows
closed,
- the keys within reach of children inside
the vehicle.
To prevent accidental opening of the doors,
use the "Child lock".
Take care not to open the rear windows by
more than one third.
To protect young children from the rays of
the sun, fit side blinds on the rear windows.