Tesla S Owner's Manual page 31

Seat Belts
WARNING: Ensure that all seat belts
are worn correctly. An improperly
worn seat belt increases the risk of
injury or death if a collision occurs.
WARNING: Do not wear seat belts
over hard, fragile or sharp items in
clothing, such as pens, keys,
eyeglasses, etc. The pressure from the
seat belt on such items can cause
injury.
WARNING: Seat belts should not be
worn with any part of the strap
twisted.
WARNING: Each seat belt assembly
must be used by one occupant only. It
is dangerous to put a seat belt around
a child being carried on an occupant's
lap.
WARNING: Seat belts that have been
worn in a collision must be inspected
or replaced by Tesla, even if damage
to the assembly is not obvious.
WARNING: Seat belts that show signs
of wear (such as fraying), or have
been cut or damaged in any way, must
be replaced by Tesla.
WARNING: Avoid contaminating a
seat belt's components with any
chemicals, liquids, grit, dirt or cleaning
products. If a seat belt fails to retract
or latch into the buckle, it must be
replaced immediately. Contact Tesla.
WARNING: Do not make modifications
or additions that can prevent a seat
belt mechanism from taking up slack,
or that can prevent a seat belt from
being adjusted to remove slack. A
slack belt greatly reduces occupant
protection.
WARNING: Do not make modifications
that can interfere with the operation
of a seat belt, or that can cause a seat
belt to become inoperable.
WARNING: When seat belts are not in
use, they should be fully retracted and
not hanging loose. If a seat belt does
not fully retract, contact Tesla.
Seating and Safety Restraints 29