Page 16 of 263
2005 VOLVO XC90
pg. 7 Safety
Disabling the passenger's side front airbag.
Volvo recommends that ALL occupants (adults and children) shorter than\
four feet seven inches (140
cm) be seated in the back seat of any vehicle with a front passenger si\
de airbag, and be properly
restrained for their size and weight. See also the child safety recommen\
dations on
page 22.
The passenger's side front airbag is automatically enabled/disabled by t\
he Occupant Weight Sensor
(OWS), a system that monitors the weight of the person or object in th\
e front passenger's seat. The
system consists of a silicon-filled bag located under the padding in the\
front passenger's seat cushion, a
control module located under this seat, and a seat belt tension sensor, \
located on the outboard side of the
seat.
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Page 17 of 263
2005 VOLVO XC90
If the system is functioning normally, the status of the front passenger\
's side airbag (enabled/ disabled)
will be shown by the OWS indicator light as explained in the table to th\
e left. The OWS indicator light is
separate and in addition to the SRS warning light in the instrument pane\
l.
NOTE: When the ignition is switched on, the OWS indicator light will go on fo\
r up to 10 seconds while
the system performs a self diagnostic test and then go out. However, if \
a fault is detected in the system:
l The OWS indicator light will stay on
l The safety system warning light (see page 6) will come on and stay on
l The message PASS. AIRBAG OFF SERVICE URGENT will be displayed in the inf\
ormation display.
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Page 18 of 263

2005 VOLVO XC90
WARNING! If a fault in the system is detected and indicated as explained above, \
be aware that
the passenger's side front airbag will not deploy in the event of a coll\
ision. In this case, the safety
systems and Occupant Weight Sensor should be inspected by an authorized \
Volvo retailer as soon as
possible.
pg. 8 Safety
WARNING!
Never try to open, remove, or repair any components in the OWS system. T\
his could result in system
malfunction. Maintenance or repairs should only be carried out by an aut\
horized Volvo service
technician.
WARNING!
Keep the following points in mind with respect to the OWS system. Failur\
e to follow these
instructions could adversely affect the system's function and result in \
serious injury to the occupant of
the front passenger's seat:
The full weight of the front seat passenger should always be on the seat\
cushion. The passenger
should never lift him/herself off the seat cushion using the armrest in \
the door or the center console,
by pressing the feet on the floor, by sitting on the edge of the seat cu\
shion, or by pressing against the
backrest in a way that reduces pressure on the seat cushion. This could \
cause OWS to disable the
front, passenger's side airbag.
The front passenger's seat should not be modified in any way. This could\
reduce pressure on the seat
cushion, which might interfere with the OWS system's function.
Do not place any type of object on the front passenger's seat in such a \
way that jamming, pressing, or
squeezing occurs between the object and the front seat, other than as a \
direct result of the correct use
of the ALR/ELR seat belt (see
page 22).
No objects should be placed under the front passenger's seat. This could\
interfere with the OWS
system's function.
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