2010 VOLVO S40 service indicator

01 Safety
Seat belts01

19
WARNING
•Never repair the belt yourself; have this
work done by a trained and qualified
Volvo service technician only.
•Any device used to induce slack into the
shoulder belt portion of the three-point
belt system will have a detrimental
effect on the amount of protection avail-
able to you in the event of a collision.
•The seat back should not be tilted too
far back. The shoulder belt must be taut
in order to function properly.
•Do not use child safety seats or child
booster cushions/backrests in the front
passenger's seat. We also recommend
that children who have outgrown these
devices sit in the rear seat with the seat
belt properly fastened.
Seat belt use during pregnancy
G020105
The seat belt should always be worn during
pregnancy. But it is crucial that it be worn in the
correct way. The diagonal section should wrap
over the shoulder then be routed between the
breasts and to the side of the belly. The lap
section should lay flat over the thighs and as
low as possible under the belly. It must never
be allowed to ride upward. Remove all slack
from the belt and insure that it fits close to the
body without any twists.
As a pregnancy progresses, pregnant drivers
should adjust their seats and steering wheel
such that they can easily maintain control of the
vehicle as they drive (which means they must
be able to easily operate the foot pedals andsteering wheel). Within this context, they
should strive to position the seat with as large
a distance as possible between their belly and
the steering wheel.
Child seats
Please refer to page 37 for information on
securing child seats with the seat belts.
Seat belt reminder
G018084
Seat belt reminder light in ceiling console
The seat belt reminder consists of an audible
signal, an indicator light near the rearview mir-
ror and a symbol in the instrument panel that
alert all occupants of the vehicle to fasten their

01 Safety
Occupant Weight Sensor (OWS) 01
26
Disabling the passenger's side front
airbag
2
G018082
Occupant Weight Sensor (OWS) indicator light
Volvo recommends that ALL occupants (adults
and children) shorter than 4 feet 7 inches
(140 cm) be seated in the rear seat of any vehi-
cle with a passenger's side front airbag, and be
properly restrained. Children should always be
seated in child restraints appropriate for their
size and weight. See also the child safety rec-
ommendations on page 35.
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 (willnot inflate) the passenger's side front airbag
under certain conditions.
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 passenger'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
present in a rear-facing infant seat that is
installed according to the manufacturer's
instructions,
•the system determines that a small child is
present in a forward-facing child restraint
that is installed according to the manufac-
turer'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 indicator 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 go on for up to 10 seconds
while the system performs a self-diagnostic
test.
However, if a fault is detected in the system:
•The OWS indicator light will stay on
•The SRS warning light (see page 21) will
come on and stay on
The message
PASS. AIRBAG OFF SERVICE
URGENT will be displayed in the information
display.

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

02 Instruments and controls
Indicator and warning symbols
02

55 Function check
The indicator and warning symbols1 light up
when you turn the ignition key or the optional
keyless drive start control to the driving posi-
tion (position II) before starting. This shows that
the symbols are functioning.
When the engine starts, all sym-
bols go out. If the engine is not
started within 5 seconds, all of the
symbols except the malfunction
indicator light (CHECK ENGINE)
and the oil pressure warning light
will go out. Certain symbols may
not have their functions illustrated, depending
on the car's equipment.
The PARK BRAKE symbol will not go out until
the parking brake has been released.
Symbols in the center of the instrument
panel
G026365
Warning symbolThe red warning symbol lights up
to indicate a fault that could affect
the car's drivability.This symbol
illuminates when the vehicle is
traveling at speeds above 5 mph
(7 km/h). A text explaining the nature of the fault
will also be shown in the information display.
The symbol and accompanying text will remain
on until the fault has been corrected. This sym-
bol may also light up in combination with other
indicator or warning symbols.
If the red warning symbol lights up:
1. Stop the car as soon as possible in a suit-
able location.
2. Read the message in the information dis-
play.
3. Follow the instructions provided, or con-
tact a trained and qualified Volvo service
technician. Erase the message by pressing
READ, see page 60.
Information symbolThe yellow information symbol
lights up to alert the driver to a
message in the information dis-
play. This symbol illuminates when
the vehicle is traveling at speeds
below 5 mph (7 km/h).
The message can be erased by pressing the
READ button, see page 60, or will disappear
automatically (the length of time required for
the message to disappear varies, depending
on the function indicated).
When the message "
TIME FOR REGULAR
SERVICE" is displayed, the text can be erased
and the information symbol light can be turned
off by pressing the READ button. The text will
disappear and the symbol light will go out auto-
matically after two minutes.
1On certain engines, the symbol for low oilpressure is not used. Instead, a text warning is provided in the information display, see page 218.

02 Instruments and controls
Indicator and warning symbols
02
56
This symbol may also light up in combination
with other indicator or warning symbols.
NOTE
The car can still be driven after the informa-
tion symbol has come on. The car can be
driven for 1–2 weeks after service-related
information has been displayed.

02 Instruments and controls
Symbols – instrument panel
02

57 Symbols – left side
G026439
1. Malfunction indicator light
As you drive, a computer called
On-Board Diagnostics II (OBDII)
monitors your car's engine, trans-
mission, electrical and emission
systems.
The CHECK ENGINE light will light up if the
computer senses a condition that potentially
may need correcting. When this happens,
please have your car checked by a trained and
qualified Volvo service technician as soon as
possible.
A CHECK ENGINE light may have many cau-
ses. Sometimes, you may not notice a change
in your car's behavior. Even so, an uncorrected
condition could hurt fuel economy, emission
controls, and drivability. Extended driving with-
out correcting the cause could even damage
other components in your car.
NOTE
Canadian models are equipped with the
second symbol.
2. Anti-lock Brake system (ABS)If the warning light comes on, there
is a malfunction of the ABS system
(the standard braking system will
still function).
The vehicle should be driven to a
trained and qualified Volvo service
technician for inspection, see
page 155 for additional informa-
tion.
NOTE
Canadian models are equipped with the
second symbol.
3. Rear fog lightThis symbol indicates that the rear
fog light (located in the driver's
side taillight cluster) is on.
4. Stability system STC or DSTCThis indicator symbol flashes when
the STC (Stability and Traction
control system) or the DSTC
(Dynamic Stability and Traction
control system) is actively working
to stabilize the car, see page 157 for more
detailed information.
5. Tire Pressure Monitoring SystemThis system monitors inflation
pressure in the tires. See page
199 for more information.
6. Fuel level warning lightWhen this light comes on, the vehi-
cle should be refueled as soon as
possible.

02 Instruments and controls
Symbols – instrument panel
02
58
Symbols – right side
G026438
1. Turn signal indicator for trailer (certain
markets only)
If you are towing a trailer, this light
will flash simultaneously with the
turn signals on the trailer. If the
light does not flash when signaling,
one of the turn signals on the trailer
or on the car are not functioning properly.
2. Parking brake appliedThis light is on when the parking
brake (hand brake) is applied. The
parking brake lever is situated
between the front seats, see
page 75 for more information.
NOTE
Canadian models are equipped with the
second symbol.
3. SRS system warning lightIf this light comes on while the car
is being driven, or remains on for
longer than approximately 10 sec-
onds after the car has been
started, the SRS system's diag-
nostic functions have detected a fault in a seat
belt lock or pretensioner, a front airbag, side
impact airbag, and/or an inflatable curtain.
Have the system(s) inspected by a trained and
qualified Volvo service technician as soon as
possible.
4. Oil pressure warning light1
If the light comes on while driving,
the car, stop the engine immedi-
ately, and check the engine oil
level. If the oil level is normal and
the light stays on after restart, have
the car towed to the nearest trained and quali-
fied Volvo service technician. After hard driv-
ing, the light may come on occasionally when
the engine is idling. This is normal, provided it
goes off when the engine speed is increased.
5. Seat belt reminderThis symbol (and the seat belt
reminder light above the rear view
mirror) will light up if either front
seat occupant has not buckled his/
her seat belt. If the car is not mov-
ing, the symbols will go out after approximately
6 seconds.
6. Generator warning lightIf the light comes on while the
engine is running, have the charg-
ing system checked by an author-
ized Volvo workshop.
1On certain engines, this symbol is not used to indicate low oil pressure. Instead, a text warning is provided in the information display, see also page 218.

02 Instruments and controls
Information display
02
60
Messages
G019617
When an indicator or warning light in the instru-
ment panel comes on, a message is also
shown in the information display. To read a
message:
1.
Press the READ button (1).
2.
Pressing READ repeatedly enables you to
scroll to any other messages that may be
stored.
NOTE
If a message is displayed when e.g. you are
using the trip computer, this message must
be read before you can access the trip com-
puter.
MessageMeaning
STOP SAFELYAStop the vehicle in a
safe place and switch
off the engine to help
prevent the risk of seri-
ous damage.
HIGH ENGINE
TEMP STOP
SAFELYStop the vehicle in a
safe place and switch
off the engine to help
prevent the risk of seri-
ous damage.
SERVICE
URGENTATake your car to a
trained and qualified
Volvo service techni-
cian for inspection
immediately.
SEE MANUALARefer to your owner's
manual. For additional
information, please
contact your Volvo
retailer.
MessageMeaning
SERVICE
REQUIREDATake your car to a
trained and qualified
Volvo service techni-
cian for inspection as
soon as possible (but
preferably before the
next scheduled mainte-
nance service).
BOOK TIME
FOR SERVICEBook time for service at
an authorized Volvo
workshop.
TIME FOR
REGULAR
MAINTE-
NANCEThis message is affec-
ted by the number of
miles/km driven, by the
number of months, or
by the number of engine
hours since the service
reminder was reset at
the most recent regu-
larly scheduled service.
MAINTE-
NANCE OVER-
DUEIf the vehicle is not serv-
iced according to
schedule, the warranty
may not apply to dam-
aged parts, etc.