Mazda CX-9 2019 Owner's Manual page 63

3. Make sure the seatback is securely
latched by pushing it back until it is
fully locked.
4. (Second-row seat)
Remove the head restraint. However,
when installing a backless booster seat,
always install the vehicle head restraint
to the seat where the backless booster
seat is installed.
Refer to Head Restraints on page 2-21.
5. Secure the child-restraint system with
the lap portion of the lap/shoulder belt.
See the manufacturer's instructions on
the child-restraint system for belt
routing instructions.
6. To get the retractor into the automatic
locking mode, pull the shoulder belt
portion of the seat belt until the entire
length of the belt is out of the retractor.
Child Restraint
7. Push the child-restraint system firmly
into the vehicle seat. Be sure the belt
retracts as snugly as possible. A
clicking noise from the retractor will
be heard during retraction if the system
is in the automatic locking mode. If the
belt does not lock the seat down tight,
repeat this step.
NOTE
Inspect this function before each use

of the child-restraint system. You
should not be able to pull the
shoulder belt out of the retractor
while the system is in the automatic
locking mode. When you remove the
child-restraint system, be sure the
belt fully retracts to return the
system to emergency locking mode
before occupants use the seat belts.
8. If your child-restraint system requires
the use of a tether strap, refer to the
manufacturer's instructions to hook
and tighten the tether strap.
Essential Safety Equipment
2-51