Lexus 2003 LS Owner's Manual page 170

COMFORT ADJUSTMENT
INSTALLATION WITH 3–POINT TYPE SEAT BELT
(A) Infant seat installation
16L306
An infant seat is used in rear–facing position only.
156
16L310
CAUTION
A Never put a rear–facing child restraint system on the
front passenger seat because the force of the rapid
inflation of the front passenger airbag can cause
death or serious injury to the child.