Lexus 2003 SC430 Owner's Manual page 122

Front seat belt buckle illumination
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Opening the driver's door lights up the driver's seat belt
buckle for easy use. The same applies for the front
passenger's door and seat belt buckle.
The light remains on for 15 seconds after the door is closed,
but goes off immediately when both side doors are locked.
Fastening seat belts
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Adjust the seat as needed and sit up straight and well back
in the seat. To fasten your belt, pull it out of the retractor
and insert the tab into the buckle.
You will hear a click when the tab locks into the buckle.
The seat belt length automatically adjusts to your size and the
seat position.
The retractor will lock the belt during a sudden stop or on
impact. It also may lock if you lean forward too quickly. A slow,
easy motion will allow the belt to extend, and you can move
around freely.
When a passenger's shoulder belt is completely extended and
is then retracted even slightly, the belt is locked in that position
and cannot be extended. This feature is used to hold the child
restraint system securely. (For details, see "Child restraint" on
page 126.) To free the belt again, fully retract the belt and then
pull the belt out once more.
2003 SC430 from May '03 Prod. (OM24449U)
COMFORT ADJUSTMENT
105