Lexus 2003 LS Owner's Manual page 173

16L313
3. While pressing the infant seat firmly against the seat
cushion and seatback, let the shoulder belt retract as far as it
will go to hold the infant seat securely.
COMFORT ADJUSTMENT
16L314
CAUTION
Push and pull the child restraint system in different
directions to be sure it is secure.
installation instructions provided by its manufacturer.
Follow all the
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