Honda 2003 Civic Owner's Manual page 45

You can also remove the rear head
restraints (see page 93
removed head restraints should be
secured so they will not be thrown
while you are driving. Make sure to
replace the rear head restraints
when the child seats are not in use.
To attach the tether to the child seat,
). The follow the child seat maker's
instructions.
When the child seat is used, follow
the instructions that came with the
child seat.
Protecting Children
Driver and Passenger Safety
43