Volvo S 90, Owner'S Manual

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SAFETY
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69
Occupant weight sensor
The Occupant Weight Sensor (OWS) is
designed to meet the regulatory requirements of
Federal Motor Vehicle Safety Standard (FMVSS)
208 and is designed to disable (will not inflate)
the passenger's side front airbag under certain
conditions.
Occupant Weight Sensor (OWS) indicator light
Disabling the passenger's side front
airbag
Volvo recommends that ALL occupants (adults
and children) shorter than 4 feet 7 inches
(140 cm) be seated in the back seat of any vehi-
cle with a front passenger side airbag and be
properly restrained for their size and weight.
The OWS works with sensors that are part of the
front passenger's seat and seat belt. The sensors
are designed to detect the presence of a properly
seated occupant and determine if the passeng-
er's side front airbag should be enabled (may
inflate) or disabled (will not inflate).
The OWS will disable (will not inflate) the pas-
senger's side front airbag when:
•
the front passenger's seat is unoccupied, or
has small/medium objects in the front seat,
•
the system determines that an infant is pres-
ent in a rear-facing infant seat that is instal-
led according to the manufacturer's instruc-
tions,
•
the system determines that a small child is
present in a forward-facing child restraint
that is installed according to the manufactur-
er's instructions,
•
the system determines that a small child is
present in a booster seat,
•
a front passenger takes his/her weight off of
the seat for a period of time,
•
a child or a small person occupies the front
passenger's seat.
The OWS uses a PASSENGER AIRBAG OFF
indicator lamp which will illuminate and stay on to
remind you that the passenger's side front airbag
is disabled. The PASSENGER AIRBAG OFF indi-
cator lamp is located in the overhead console,
near the base of the rearview mirror.
NOTE
When the ignition is switched on, the OWS
indicator light will illuminate for several sec-
onds while the system performs a self-diag-
nostic test.
However, if a fault is detected in the system:
•
The OWS indicator light will stay on
•
The SRS warning light will come on and stay
on and a text message will be displayed.
WARNING
If a fault in the system is detected and indi-
cated as described, be aware that the pas-
senger's side front airbag will not deploy in
the event of a collision. In this case, the SRS
system and Occupant Weight Sensor should
be inspected by a trained and qualified Volvo
service technician as soon as possible.