Lexus GS300 1998 Owner's Manual page 139

COMFORT ADJUSTMENT
CAUTION
Persons should ride in their seats properly wearing their seat
belts whenever the vehicle is moving. Otherwise, they are
much more likely to suffer serious bodily injury in the event
of sudden braking or a collision.
When using the seat belts, observe the following:
D Use the belt for only one person at a time. Do not use a
single belt for two or more people – even children.
D Avoid reclining the seatbacks too much. The seat belts
provide maximum protection when the seatbacks are in the
upright position. (See "Adjusting seatback angle.")
D Be careful not to damage the belt webbing or hardware.
Take care that they do not get caught or pinched in the seat
or doors.
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