2009 VOLVO XC90 service indicator

01 Safety
Occupant Weight Sensor
01``25 Disabling the passenger's side front
airbag
G027050
Occupant Weight Sensor (OWS) indicator lightVolvo 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. For child safety recommen-
dations, see page 33.
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
ThePASSENGER AIRBAG OFF indicator
lamp will illuminate for a short period of time
when the ignition is turned on to confirm it
is functional. When the front passenger's
seat is not occupied (empty seat) or in the
event that the passenger's side front airbag
is enabled (may inflate), the PASSENGER
AIRBAG OFF indicator lamp will be off.However, if a fault is detected in the system:•
The OWS indicator light will stay on
•
The SRS warning light (see page 20) will
come on and stay on
•
The message PASS. AIRBAG OFF
SERVICE URGENT will be displayed in the
information display.

01 SafetyOccupant Weight Sensor
0126
WARNING
•
If a fault in the system is detected and
indicated as explained, be aware that
the passenger's side front airbag will
not deploy in the event of a collision.
•
In this case, the safety systems and
Occupant Weight Sensor should be
inspected by a trained and qualified
Volvo service technician 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 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 willilluminate and stay on to remind you that the
passenger's side front airbag is disabled (see
the following table).
Passeng-
er's seat
occu-
pancy sta-
tus
OWS indi-
cator light
status
Passeng-
er's side
front air-
bag status
Seat unoc-
cupied
OWS indica-
tor light
is
not lit
Passenger's
side front
airbagdisa-
bled
Seat occu-
pied by low
weight
occupant/
object
A
OWS indica-
tor lightlights up
Passenger's
side front
airbagdisa-
bled
Seat occu-
pied by
heavy occu-
pant/object
OWS indica-
tor light
is
not lit
Passenger's
side front
airbagena-
bled
AVolvo recommends that children always be properly
restrained in appropriate child restraints in the rear seats.In
rare situations when the seat belt is not properly fastened,
some child restraints may not be detected by the OWS
because there is very little weight on the vehicle seat cush-
ion. In these cases the passenger's side front airbag may be
disabled, but the PASSENGER AIRBAG OFF indicator lampwill not be lit. 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 (turn the vehicle off, remove the child restraint from
the vehicle and reinstall the restraint following the child
restraint manufacturer's instructions) and that the
PASSENGER AIRBAG OFF indicator lamp is on, or 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 is
sitting properly in the front passenger's seat.
ThePASSENGER 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 seat back 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.

01 Safety
Occupant Weight Sensor
0127
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
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
P.O. Box 914 Rockleigh,
New Jersey 07647-0914
1-800-458-1552
In Canada
Volvo Cars of Canada Corp.
National Customer Service
175 Gordon Baker Road
North York, Ontario M2H 2N7
1-800-663-8255
WARNING
•
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 front passenger's
side 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 34).
•
No objects should be placed under the
front passenger's seat. This could inter-
fere with the OWS system's function.

02 Instruments and controls
Instrument panel
02``55
Gear and driving mode indicator – The cur-
rently selected driving mode is displayed
here. If you use the Geartronic function on
the automatic transmission, the currently
selected gear will be displayed.Ambient temperature gauge – This display
indicates the air temperature outside your
vehicle. A "snowflake" symbol in the text
window is displayed when the temperature
is in the range of 23 – 36 °F (–5 – +2 °C).
Please note that this symbol does not indi-
cate a fault with your vehicle. At low
speeds or when the vehicle is not moving,
the temperature readings may be slightly
higher than the actual ambient tempera-
ture.Clock/set button – Turn the button to set
the clock.Fuel gauge – see page 265 for fuel tank
volume. When the warning light in the
gauge comes on, the vehicle should be
refueled as soon as possible. The trip com-
puter section (see page 71) provides
more information on fuel level and con-
sumption.Indicator and warning symbols – The indi-
cator and warning symbols
1light up when
you turn the ignition key to the driving posi-
tion (position II) before starting.
G027134
This shows that the symbols are functioning.
When the engine starts, all symbols go out. If
the engine is not started within 5 seconds, all
symbols except CHECK ENGINE and
go out. Certain symbols may not
have their functions illustrated, depending on
the vehicle's equipment. The symbol for the
parking brake goes out when the parking brake
is released.
Warning symbol in center of the
instrument panel
This symbol shines as a red or yel-
low light depending on the severity
of the discovered fault.
Red symbol – Stop the vehicle as soon as
possible in a suitable location and read the
message shown in the text window. The sym-
bol and accompanying text will remain on until
the fault has been corrected.
Yellow symbol – Follow the instructions
shown in the text window. The text can be
erased by pressing the READ button (see
page 58), or will disappear automatically after
two minutes.
NOTE
When the message
TIME FOR REGULAR
SERVICE
is displayed, the text can be
erased and the yellow symbol light can be
turned off by pressing the READ button.
The text will disappear and the symbol light
will go out automatically 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 209.

02 Instruments and controls
Instrument panel
0257
Rear fog light
This light indicates that the fog
light is on.
CHECK ENGINE Malfunction indicator
lightOn-Board Diagnostics II (OBDII): As you drive,
a computer called "OBDII" monitors your vehi-
cle's engine, transmission, electrical and emis-
sion 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 vehicle checked by
a trained and qualified Volvo service technician
as soon as possible.
ACHECK ENGINE light may have many cau-
ses. Sometimes, you may not notice a change
in your vehicle's behavior. Even so, an uncor-
rected condition could hurt fuel economy,
emission cleanliness, and driveability.
Extended driving without correcting the cause
could even damage other components in your
vehicle.
Canadian models are equipped
with this warning light.
ABS (Anti-lock brake system)
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 143 for additional information.
DSTC system
The Dynamic Stability and Traction
Control system (DSTC) is
explained in greater detail on page
145.
Tire pressure monitoring light
See page 190 for more informa-
tion on this function.
Turn signal indicator – trailer (certain
models)
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,
neither the trailer's turn signals nor
the vehicle's turn signals are functioning.

06 Starting and drivingGeneral information
06128
Engine oilAlthough some oil consumption occurs during
normal engine operation, more oil is consumed
when the engine is new as the internal parts
generate higher friction while wearing-in to
each other. From the time the engine is new
until the first maintenance is performed, the oil
consumption could be higher than normal. For
this reason, it is especially important to check
the oil every time you refuel your vehicle during
this period, see page 209.Fuel requirementsDeposit control gasoline (detergent
additives)Volvo recommends the use of detergent gas-
oline to control engine deposits. Detergent
gasoline is effective in keeping injectors and
intake valves clean. Consistent use of deposit
control gasolines will help ensure good driva-
bility and fuel economy. If you are not sure
whether the gasoline contains deposit control
additives, check with the service station oper-
ator.
NOTE
Volvo does not recommend the use of
external fuel injector cleaning systems.
Unleaded fuelEach Volvo has a three-way catalytic converter
and must use only unleaded gasoline. U.S. and
Canadian regulations require that pumps deliv-
ering unleaded gasoline be labelled "UNLEA-
DED". Only these pumps have nozzles which
fit your vehicle's filler inlet. It is unlawful to dis-
pense leaded fuel into a vehicle labelled
"unleaded gasoline only". Leaded gasoline
damages the three-way catalytic converter and
the heated oxygen sensor system. Repeated
use of leaded gasoline will lessen the effec-
tiveness of the emission control system and
could result in loss of emission warranty cov-
erage. State and local vehicle inspection pro-
grams will make detection of misfueling easier,
possibly resulting in emission test failure for
misfueled vehicles.
NOTE
Some U.S. and Canadian gasolines contain
an octane enhancing additive called methyl-
cyclopentadienyl manganese tricarbonyl
(MMT). If such fuels are used, your Emission
Control System performance may be affec-
ted, and the Check Engine Light (malfunc-
tion indicator lamp) located on your instru-
ment panel may light. If this occurs, please
return your vehicle to a trained and qualified
Volvo service technician for maintenance.
Gasoline containing alcohol and ethers"Oxygenated fuels"
Some fuel suppliers sell gasoline containing
"oxygenates" which are usually alcohols or
ethers. In some areas, state or local laws
require that the service pump be marked indi-
cating use of alcohols or ethers. However,
there are areas in which the pumps are
unmarked. If you are not sure whether there is
alcohol or ethers in the gasoline you buy, check
with the service station operator. To meet sea-
sonal air quality standards, some areas require
the use of "oxygenated" fuel.
Volvo allows the use of the following "oxygen-
ated" fuels; however, the octane ratings listed
on page 129 must still be met.
Alcohol – Ethanol: Fuels containing up to 10%
ethanol by volume may be used. Ethanol may
also be referred to as Ethyl alcohol, or "Gaso-
hol".
Ethers – MTBE: Fuels containing up to 15%
MTBE may be used.

06 Starting and drivingStability system
06146
DSTC-related messages in the text
window•
TRACTION CONTROL TEMPORARILY
OFF
– The system has been temporarily
switched off due to high brake temperature
and will automatically switch on again
when the brakes have cooled.
•
"ANTI SKID SERVICE REQUIRED
" – the
system has been automatically disen-
gaged due to a fault. A trained and qualified
Volvo service technician should check the
system.
Symbols in the instrument panelThe Stability Control indicator light
This light indicates different condi-
tions, depending on how it illumi-
nates.
The Stability Control indicator light
illuminates for approximately 2 secondsThis indicates that the system is performing a
self-diagnostic test when the ignition is
switched on.The Stability Control indicator light
flashesThis indicates that the stability system is
actively functioning to help counteract wheel
spin and/or a skid.
The Stability Control indicator light
glows steadilyANTI SKID SERVICE REQUIRED
will be dis-
played in the text window at the same time.
A fault is indicated in the stability system.
•
Stop the vehicle in a safe place and switch
off the engine.
•
Restart the engine.
•
If the indicator light goes out, the fault was
temporary and no further action is
required.
•
If the indicator light remains on, drive to an
authorized Volvo workshop as soon as
possible to have the system checked.
The Stability Control indicator light
glows steadilyIfDSTC SPIN CONTROL OFF
is displayed in
the text window at the same time, this is a
reminder that spin control has been disabled
by the driver.
The warning symbol
The warning symbol glows
steadily yellow
The system has been temporarily switched off
due to high brake temperature. "
TRACTIONCONTROL TEMPORARILY OFF
" will be dis-
played. The system will automatically switch
on again when the brakes have cooled.
WARNING
The stability system is intended to help
improve driving safety. It supplements, but
can never replace, the driver's judgement
and responsibility when operating the vehi-
cle. Speed and driving style should always
be adapted to traffic and road conditions.

06 Starting and drivingBlind Spot Information System
06``161
Cleaning the BLIS camera lensesIn order to function optimally, the BLIS camera
lenses must be kept clean. They can be wiped
clean with a soft cloth or wet sponge.
CAUTION
•
Clean the lenses carefully to avoid
scratching.
•
The lenses are electrically heated to
help melt ice or snow. If necessary, gen-
tly brush away snow from the lenses.
LimitationsIn certain situations, the BLIS indicator light(s)
may illuminate even when there are no other
vehicles in the area monitored by the system.
NOTE
If the BLIS indicator lights illuminate occa-
sionally even when there are no other vehi-
cles in the blind area, this does not indicate
a fault in the system.
In the event of a fault,
Blind spot syst.
service required
will be displayed.
The following are several examples of situa-
tions in which the BLIS indicator light(s) may
illuminate even when there are no other vehi-
cles in the area monitored by the system.
G018176
Light reflected from a wet road surface
G018177
The vehicle's own shadow against a large, light,
smooth surface such as barriers between lanes on
a highway
G018178
Sunlight directly in the camera when the sun is low
on the horizon
G026955
Switching BLIS on and offBLIS is automatically activated when the igni-
tion is switched on. The indicator lights will
provide confirmation by flashing 3 times.•
The system can be switched off by press-
ing the BLIS button in the center console
(see the illustration). The indicator light in
the button goes out when the system is
switched off, and a text message is dis-
played.
•
BLIS can be switched on again by pressing
the button. The indicator light in the button
will illuminate and a new text message will
be displayed. Press the READ button (see
page 58) to erase the message.