Seat Belts; Testing Seat Belts - Tesla S 2014 Owner's Manual

Seat Belt Pre-tensioners
The front seat belts are equipped with
pre‑tensioners that work in conjunction with
the airbags in a severe frontal collision. The
pre‑tensioners automatically retract both the
seat belt anchor and the seat belt webbing,
reducing slack in both the lap and diagonal
portions of the belts, resulting in reduced
forward movement of the occupant.
If the pre-tensioners and airbags did not
activate in an impact, this does not mean they
malfunctioned. It usually means that the
strength or type of force needed to activate
them was not present.
Warning: Once the seat belt pre-
tensioners have been activated, they
must be replaced. After any accident,
have the airbags, seat belt pre-tensioners
and any associated components checked
and, if necessary, replaced.
Seating and Safety Restraints
Seating and Safety Restraints

Testing Seat Belts

To confirm that seat belts are operating
correctly, perform these three simple checks
on each seat belt.
1. With the seat belt fastened, give the
webbing nearest the buckle a quick pull.
The buckle should remain securely locked.
2. With the belt unfastened, unreel the
webbing to its limit. Check that unreeling
is free from snags, and visually check the
webbing for wear. Allow the webbing to
retract, checking that retraction is smooth
and complete.
3. With the webbing half unreeled, hold the
tongue plate and pull forward quickly. The
mechanism should lock automatically and
prevent further unreeling.
If a seat belt fails any of these tests, contact
Tesla immediately.
For information about cleaning seat belts, see

Seat Belts

on page 104.
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