Opel Cascada Owner's Manual page 67

Children should travel facing
rearwards in the vehicle as long as
possible. This makes sure that the
child's backbone, which is still very
weak, is under less strain in the event
of an accident.
Suitable are restraint systems that
comply with valid UN ECE
regulations. Check local laws and
regulations for mandatory use of child
restraint systems.
Ensure that the child restraint system
to be installed is compatible with the
vehicle type.
Ensure that the mounting location of
the child restraint system within the
vehicle is correct, see following
tables.
Allow children to enter and exit the
vehicle only on the side facing away
from the traffic.
When the child restraint system is not
in use, secure the seat with a seat belt
or remove it from the vehicle.
Note
Do not affix anything on the child
restraint systems and do not cover
them with any other materials.
A child restraint system which has
been subjected to stress in an
accident must be replaced.
Seats, restraints 65