Lexus GS450h Owner's Manual page 61

The child restraint systems mentioned in the table may not be available outside of
the EU area.
Other child restraint systems which are different from the systems mentioned in
the table can be used, but the suitability of the systems must be carefully checked
with the child restraint system manufacturer concerned and the seller of those
seats.
Child restraint system list
Mass groups
0
Up to 10 kg (22 lb.)
(0 - 9 months)
0+
Up to 13 kg (28 lb.)
(0 - 2 years)
GS450h_300h_OM_OM30F92E_(EE)
Child restraint systems
LEXUS G 0+, BABYSAFE PLUS with
SEAT BELT FIXATION, BASE PLAT-
FORM
LEXUS G 0+, BABYSAFE PLUS with
SEAT BELT FIXATION, BASE PLAT-
FORM
61
1-1. For safe use
Category
Semi-universal
Semi-universal
1