Lexus RX300 Manual page 131

COMFORT ADJUSTMENT
16R067a
4. To remove the infant seat, press the buckle–release button and
allow the belt to retract completely. The belt will move freely again
and be ready to work for an adult or older child passenger.
116
(B) Convertible seat installation
16R068b
A convertible seat is used in forward–facing and rear–facing
positions depending on the age and size of the child. When
installing, follow the manufacturer's instructions about the
appropriate age and size of the child as well as direction for installing
of a child restraint system.