Toyota Lexusc Owner's Handbook Manual page 197

OCCUPANT RESTRAINT SYSTEMS
To release the belt, press the buckle release button and
allow the belt to retract.
If the belt does not retract smoothly, pull it out and check for
kinks or twists. Then make sure it remains untwisted as it
retracts.
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Seat belt comfort guides
The outside shoulder belt comfort guides for the rear seat
outside positions will provide added seat belt comfort for
children who have outgrown child restraints and for small
adults. When the outside shoulder belt is inserted
through the guide, the comfort guide pulls the belt away
from the neck and head of an occupant.
To use the comfort guide, do as follows.