Mazda CX-9 2019 Owner's Manual page 59

IL = Suitable for particular ISOFIX child restraint systems (CRS) given in the attached list. These ISOFIX CRS are
those of the "specific vehicle", "restricted" or "semi-universal" categories.
i-U = Suitable for i-Size "universal" Child Restraint Systems forward and rearward facing.
i-UF = Suitable for forward-facing i-Size "universal" Child Restraint Systems only.
Yes = Child-restraint system can be secured on the seat.
No = Child-restraint system cannot be secured on the seat, or there is no fixture.
X = Child-restraint system cannot be installed.
*
1 Child restraint system can only be installed in the forward-facing position.
A Mazda genuine child-restraint system can be installed. Regarding child-restraint systems which can be installed,
refer to the accessories catalog.
(Except Mexico)
Regarding child-restraint systems which can be installed to your Mazda, consult an Authorized Mazda Dealer.

A child-restraint system with a support leg cannot be installed on the rear center seat position.

Essential Safety Equipment
Child Restraint
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