Lexus ES-300 2001 Manual page 197

COMFORT ADJUSTMENT
When not using the child restraint system, keep it
secured with the seat belt or place it in the trunk or
somewhere other than in the passenger compartment.
This will prevent it from injuring passengers in the event
of a sudden stop or accident.
Your vehicle has anchors for securing the top strap of a
child restraint system.
For instructions about how to use the anchor bracket,
see "Using a top strap" on page 201.
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Types of child restraint system
Child restraint systems are classified into the following
3 types depending on the child's age and size.
(A) Infant seat
(B) Convertible seat
(C) Booster seat
Install the child restraint system following the
instructions provided by its manufacturer.
(A) Infant seat