Opel Automobile Owner's Manual page 44

44 Seats, restraints
Selecting the right system
Children should travel in a rear-facing
child restraint until as old as possible.
It is appropriate to change the system
when the child's head can no longer
be properly supported at eye height.
The child's cervical vertebrae are still
very weak and in an accident they
suffer less stress in the semi-prone
rearward position than when sitting
upright.
Children under 12 years or under
150 cm (5 ft) tall should only travel in
an appropriate child restraint system.
Never hold a child whist travelling in
the vehicle. The child will become too
heavy to be held in the event of
a collision.
When transporting children, use the
child restraint system suitable for the
child's weight.
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.
Only allow children to enter and exit
the vehicle at 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 stick 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.