CITROEN DS3 Handbook page 186

"ISOFIX" mountings
Your vehicle has been approved in accordance
with the latest ISoFIX regulation.
The seats, represented below, are fitted with
regulation ISOFIX mountings:
There are three rings for each seat:
- two rings A, located between the vehicle
seat back and cushion, indicated by a
label,
- a ring B, behind the seat, referred to as the
TOP TETHER for fixing the upper strap.
The TOP TETHER is used to secure the
upper strap of child seats that have one. This
arrangement limits the forward tipping of the
child seat in the event of a front impact.
This ISOFIX mounting system provides fast,
reliable and safe fitting of the child seat in your
vehicle.
The ISOFIX child seats are fitted with two
latches which are secured on the two rings A.
Some seats also have an upper strap which is
attached to ring B.
To secure the child seat to the top tether:
- remove and stow the head restraint before
installing the child seat on this seat (refit it
once the child seat has been removed),
- pass the child seat strap over the top of
the backrest of the seat, keeping it centred
between the head restraint apertures,
- secure the hook of the upper strap to the
ring B,
- tighten the upper strap.
When fitting an ISOFIX child seat to the right
hand rear seat, before fixing the seat in place,
first move the centre rear seat belt towards the
middle of the vehicle so as to not interfere with
the operation of the seat belt.
The incorrect installation of a child seat
in a vehicle compromises the child's
protection in the event of an accident.
Follow strictly the advice given in the
installation instructions provided with
the child seat.
Refer to the table for the possibilities for fitting
ISOFIX child seats in your vehicle.