Lexus 2003 SC430 Owner's Manual page 146

(B) Convertible seat
16sa47c
(C) Booster seat
16sa48c
INSTALLATION WITH 3–POINT TYPE SEAT BELT
(A) Infant seat installation
16sa46c
An infant seat is used in rear–facing position only.
2003 SC430 from May '03 Prod. (OM24449U)
COMFORT ADJUSTMENT
129