2010 VOLVO S40 weight

01 Safety
Occupant Weight Sensor (OWS)01

27
WARNING
If a fault in the system is detected and indi-
cated as explained on the preceding page,
be aware that the passenger's side front air-
bag 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 techni-
cian as soon as possible.
WARNING
•Never try to open, remove, or repair any
components in the OWS system. This
could result in system malfunction.
Maintenance or repairs should only be
carried out by an a trained and qualified
Volvo service technician.
•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 sys-
tem's function.
The OWS is designed to disable (will not inflate)
the passenger's side front airbag when a rear
facing infant seat, a forward-facing child
restraint, or a booster seat is detected. The
PASSENGER AIRBAG OFF indicator lamp will
illuminate and stay on to remind you that thepassenger's side front airbag is disabled (see
the following table).
Passenger's
seat occu-
pancy statusOWS indica-
tor light sta-
tusPassenger's
side front
airbag sta-
tus
Seat unoc-
cupiedOWS indica-
tor light
lights
up
Passenger's
side front
airbag disa-
bled
Seat occu-
pied by low
weight
occupant/
object
A
OWS indica-
tor light
lights
up
Passenger's
side front
airbag disa-
bled
Seat occu-
pied by
heavy occu-
pant/objectOWS indica-
tor light
is not
lit
Passenger's
side front
airbag ena-
bled
AVolvo recommends that children always be properly
restrained in appropriate child restraints in the rear seats. Do
not assume that the passenger's side front airbag is disabled
unless the PASSENGER AIRBAG OFF indicator lamp is lit.
Make sure the child restraint is properly installed. If there is
any doubt as to the status of the passenger's side front air-
bag, move the child restraint to the rear seat.
The OWS is designed to enable (may inflate)
the passenger's side front airbag anytime the
system senses that a person of adult size issitting properly in the front passenger's seat.
The PASSENGER AIRBAG OFF indicator
lamp will be off and remain off.
If a person of adult size is sitting in the front
passenger's seat, but the PASSENGER
AIRBAG OFF indicator lamp is on, it is possible
that the person isn't sitting properly in the seat.
If this happens:
1. Turn the vehicle off and ask the person to
place the seatback in an upright position.
2. Have the person sit upright in the seat,
centered on the seat cushion, with the per-
son's legs comfortably extended.
3. Restart the vehicle and have the person
remain in this position for about two
minutes. This will allow the system to
detect that person and enable the pas-
senger's frontal airbag.
4.
If the PASSENGER AIRBAG OFF indicator
lamp remains on even after this, the person
should be advised to ride in the rear seat.
This condition reflects limitations of the OWS
classification capability. It does not indicate
OWS malfunction.
ModificationsIf you are considering modifying your vehicle in
any way to accommodate a disability, for
example by altering or adapting the driver's or

01 Safety
Occupant Weight Sensor (OWS) 01
28
front passenger's seat(s) and/or airbag sys-
tems, please contact Volvo at:
In the USA
Volvo Cars of North America, LLC
Customer Care Center
1 Volvo Drive
P.O. Box 914
Rockleigh, New Jersey 07647
1-800-458-1552
In Canada
Volvo Cars of Canada Corp.
National Customer Service
175 Gordon Baker Road North York, Ontario
M2H 2N7
1-800-663-8255WARNING
•No objects that add to the total weight
on the seat should be placed on the
front passenger's seat. If a child is
seated in the front passenger's seat
with any additional weight, this extra
weight could cause the OWS system to
enable the airbag, which might cause it
to deploy in the event of a collision,
thereby injuring the child.
•The seat belt should never be wrapped
around an object on the front passeng-
er's seat. This could interfere with the
OWS system's function.
•The front passenger's seat belt should
never be used in a way that exerts more
pressure on the passenger than normal.
This could increase the pressure exer-
ted on the weight sensor by a child, and
could result in the airbag being enabled,
which might cause it to deploy in the
event of a collision, thereby injuring the
child.
WARNING
Keep the following points in mind with
respect to the OWS system. Failure 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 passen-
ger should always be on the seat cush-
ion. 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
cushion, or by pressing against the
backrest in a way that reduces pressure
on the seat cushion. This could cause
OWS to disable the passenger's side
front airbag.
•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 Automatic Locking
Retractor/Emergency Locking Retrac-
tor (ALR/ELR) seat belt, see page 36.
•No objects should be placed under the
front passenger's seat. This could inter-
fere with the OWS system's function.

01 Safety
Child safety01

35 Children should be seated safely
Volvo recommends the proper use of restraint
systems for all occupants including children.
Remember that, regardless of age and size, a
child should always be properly restrained in a
car.
Your car is also equipped with ISOFIX/LATCH
attachments, which make it more convenient
to install child seats.
Some restraint systems for children are
designed to be secured in the vehicle by lap
belts or the lap portion of a lap-shoulder belt.
Such child restraint systems can help protect
children in cars in the event of an accident only
if they are used properly. However, children
could be endangered in a crash if the child
restraints are not properly secured in the vehi-
cle. Failure to follow the installation instructions
for your child restraint can result in your child
striking the vehicle's interior in a sudden stop.
Holding a child in your arms is NOT a suitable
substitute for a child restraint system. In an
accident, a child held in a person's arms can
be crushed between the vehicle's interior and
an unrestrained person. The child could also be
injured by striking the interior, or by being ejec-
ted from the vehicle during a sudden maneuver
or impact. The same can also happen if the
infant or child rides unrestrained on the seat.
Other occupants should also be properlyrestrained to help reduce the chance of injuring
or increasing the injury of a child.
All states and provinces have legislation gov-
erning how and where children should be car-
ried in a car. Find out the regulations existing
in your state or province. Recent accident sta-
tistics have shown that children are safer in rear
seating positions than front seating positions
when properly restrained. A child restraint sys-
tem can help protect a child in a vehicle. Here's
what to look for when selecting a child restraint
system:
•It should have a label certifying that it
meets applicable Federal Motor Vehicle
Safety Standards (FMVSS 213) – or in Can-
ada, CMVSS 213.
•Make sure the child restraint system is
approved for the child's height, weight and
development – the label required by the
standard or regulation, or instructions for
infant restraints, typically provide this infor-
mation.
•In using any child restraint system, we urge
you to carefully look over the instructions
that are provided with the restraint. Be sure
you understand them and can use the
device properly and safely in this vehicle.
A misused child restraint system can result
in increased injuries for both the infant or
child and other occupants in the vehicle.When a child has outgrown the child safety
seat, you should use the rear seat with the
standard seat belt fastened. The best way to
help protect the child here is to place the child
on a cushion so that the seat belt is properly
located on the hips (see the illustration on page
43). Legislation in your state or province may
mandate the use of a child seat or cushion in
combination with the seat belt, depending on
the child's age and/or size. Please check local
regulations.
A specially designed and tested booster cush-
ion can be obtained from your Volvo retailer.
USA: for children weighing 33–80 lbs. (15–
36 kg) and 38–54 inches (97–137 cm) in height
Canada: for children weighing 40–80 lbs. (18–
36 kg) and 40–54 inches (102–137 cm) in height
WARNING
Do not use child safety seats or child
booster cushions/backrests in the front
passenger's seat. We also recommend that
children under 4 feet 7 inches (140 cm) in
height who have outgrown these devices sit
in the rear seat with the seat belt fastened.

01 Safety
Child restraint systems01

37 Child restraints
G026491
Infant seat
There are three main types of child restraint
systems: infant seats, convertible seats, and
booster cushions. They are classified accord-
ing to the child's age and size.
The following section provides general infor-
mation on securing a child restraint using a
three-point seat belt. Refer to pages pages
44–46 for information on securing a child
restraint using ISOFIX lower anchors and/or
top tether anchorages.
G026503
Convertible seat
WARNING
A child seat should never be used in the
front passenger seat of any vehicle with a
front passenger airbag – not even if the
Passenger airbag off symbol near the
rear-view mirror is illuminated (on vehicles
equipped with Occupant Weight Sensor). If
the severity of an accident were to cause the
airbag to inflate, this could lead to serious
injury or death to a child seated in this posi-
tion.
G026489
WARNING
Always refer to the child restraint manufac-
turer's instructions for detailed information
on securing the restraint.

01 Safety
Child restraint systems 01
38
WARNING
•When not in use, keep the child restraint
system secured or remove it from the
passenger compartment to help pre-
vent it from injuring passengers in the
event of a sudden stop or collision.
•A small child's head represents a con-
siderable part of its total weight and its
neck is still very weak. Volvo recom-
mends that children up to age 4 travel,
properly restrained, facing rearward. In
addition, Volvo recommends that chil-
dren should ride rearward facing, prop-
erly restrained, as long as possible.

01 Safety
Infant seats01

39 Securing an infant seat with a seat belt
G026417
Do not place the infant seat in the front passeng-
er's seat
NOTE
Refer to pages 44–46 for information on
securing a child restraint using ISOFIX lower
anchors and/or top tether anchorages.
WARNING
•An infant seat must be in the rear-facing
position only.
•The infant seat should not be positioned
behind the driver's seat unless there is
adequate space for safe installation.
1. Place the infant seat in the rear seat of the
vehicle.
G026493
Positioning the seat belt through the infant seat
2. Attach the seat belt to the infant seat
according to the manufacturer's instruc-
tions.
G026492
Fasten the seat belt
WARNING
A child seat should never be used in the
front passenger seat of any vehicle with a
front passenger airbag – not even if the
Passenger airbag off symbol near the
rear-view mirror is illuminated (on vehicles
equipped with Occupant Weight Sensor). If
the severity of an accident were to cause the
airbag to inflate, this could lead to serious
injury or death to a child seated in this posi-
tion.
3. Fasten the seat belt by inserting the latch
plate into the buckle (lock) until a distinct
click is audible.

01 Safety
Convertible seats01

41 Securing a convertible seat with a seat
belt
G026420
Do not place the convertible seat in the front pas-
senger's seat
NOTE
Refer to pages 44–46 for information on
securing a child restraint using ISOFIX lower
anchors and/or top tether anchorages.
Convertible seats can be used in either a for-
ward or rearward-facing position, depending
on the age and size of the child.
WARNING
Always use a convertible seat that is suita-
ble for the child's age and size. See the con-
vertible seat manufacturer's recommenda-
tions.
G026503
Route the seat belt through the convertible seat
WARNING
A small child's head represents a consider-
able part of its total weight and its neck is
still very weak. Volvo recommends that chil-
dren up to age 4 travel, properly restrained,
facing rearward. In addition, Volvo recom-
mends that children should ride rearward
facing, properly restrained, as long as pos-
sible.
WARNING
•Convertible child seats should be instal-
led in the rear seat only.
•A rear-facing convertible seat should not
be positioned behind the driver's seat
unless there is adequate space for safe
installation.
1. Place the convertible seat in the rear seat
of the vehicle.

01 Safety
Booster cushions01
43 Securing a booster cushion
G026489
Position the child correctly on the booster cushion
and fasten the seat belt
WARNING
A child seat should never be used in the
front passenger seat of any vehicle with a
front passenger airbag – not even if the
Passenger airbag off symbol near the
rear-view mirror is illuminated (on vehicles
equipped with Occupant Weight Sensor). If
the severity of an accident were to cause the
airbag to inflate, this could lead to serious
injury or death to a child seated in this posi-
tion.
Booster cushions are recommended for chil-
dren who have outgrown convertible seats.
1. Place the booster cushion in the rear seat
of the vehicle.
2. With the child properly seated on the
booster cushion, attach the seat belt to or
around the cushion according to the man-
ufacturer's instructions.
3. Fasten the seat belt by inserting the latch
plate into the buckle (lock) until a distinct
click is audible.
4. Ensure that the seat belt is pulled taut and
fits snugly around the child.
WARNING
•The hip section of the three-point seat
belt must fit snugly across the child's
hips, not across the stomach.
•The shoulder section of the three-point
seat belt should be positioned across
the chest and shoulder.
•The shoulder belt must never be placed
behind the child's back or under the
arm.