2009 VOLVO XC90 warning lights

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.

02 Instruments and controls
Instrument overview
0253
Headlights/Parking lightsPanel ventsDisplayTemperature gaugeOdometer/Trip odometer/Cruise control
indicatorSpeedometerTurn signal indicator lightsTachometerAmbient temperature gauge, clock, gear
indicatorFuel gaugeIndicator and warning symbolsPanel ventsGlove compartmentHazard warning flashersAudio systemClimate system controlsWindshield wiper/washer leverAudio control buttons in steering wheelInstrument panel
HornCruise control buttons in steering wheelTurn signals, High/low beams, READ-but-
tonParking brake pedalParking brake release handleReading lightsCourtesy lightMoonroof control (option)Seat belt reminderRearview mirror
Control panel in the driver's door
G029570
Central locking buttonLockout switch for rear seat power win-
dowsPower window controlsDoor mirror controls

02 Instruments and controlsInstrument panel
0256
Seat belt reminder
This symbol lights up to indicate
that the driver has not fastened his/
her seat belt.
Supplemental Restraint System (SRS)
If this light comes on while the
vehicle is being driven, or remains
on for longer than approximately
10 seconds after the vehicle has
been started, the SRS system's
diagnostic 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.
BRAKE – Brake failure warning lightIf the light comes on while driving or braking,
stop immediately, open the hood and check
the brake fluid level in the reservoir. see
page 212.
Canadian models are equipped
with this warning light.
If the BRAKE and ABS warning lights come
on at the same time, this could indicate a
fault in the brake system.•
Stop the vehicle in a suitable place and
switch off the engine.
•
Restart the engine.
•
If both warning lights go off, no further
action is required.
•
If both lights are still on after the engine has
been restarted, switch off the engine again
and check the brake fluid level (see
page 212 for the location of the brake fluid
reservoir).
If the brake fluid level is above the MIN mark,
drive carefully to a trained and qualified Volvo
service technician and have the brake system
inspected.WARNING
If the fluid level is below the MIN mark in the
reservoir or if a
Brake failure – Service
urgent
message is displayed in the text
window:DO NOT DRIVE
. Have the vehicle
towed to a trained and qualified Volvo serv-
ice technician and have the brake system
inspected.
PARK BRAKE Parking brake appliedThis light will be on when the parking brake
(hand brake) is applied. The parking brake
pedal is located on the left side of the driver's
footwell, see page 75 for more information.
Canadian models are equipped
with this symbol.Oil pressure warning light
2
If the light comes on while driv-
ing, stop the vehicle and then
stop the engine immediately and
check the engine oil level, see
page 58. If the light stays on after
restart, have the vehicle towed to the nearest
trained and qualified Volvo service technician.
After hard driving, the light may come on occa-
sionally when the engine is idling. This is nor-
mal, provided it goes off when the engine
speed is increased.
Generator warning light
If the light comes on while the
engine is running, have the charg-
ing system checked.
2On certain engines, the symbol for low oilpressure is not used. Instead, a text warningis provided in the information display, see page 58.

02 Instruments and controls
Information display
0259
Message
Meaning
TIME FOR REGULAR SERVICE
This message will be displayed at 7,500 mile (12,000 km) intervals, after 750 hours of driving or after
12 months, whichever occurs first, to remind the driver that the service interval has been exceeded. The
message will be displayed for 2 minutes each time the vehicle is started until reset by a trained and qualified
Volvo service technician.
OIL LEVEL LOW – FILL OIL
A
Check the oil level and top up if necessary, see page 209.
OIL LEVEL LOW – STOP SAFELY
B
Stop as soon as possible and switch off the engine, check the oil level and top up if necessary, see
page 209.
OIL LEVEL LOW – STOP ENGINE
B
Stop as soon as possible and switch off the engine, check the oil level and top up if necessary, see
page 209.
OIL LEVEL LOW – SEE MANUAL
B
Stop as soon as possible and switch off the engine, check the oil level and top up if necessary, see
page 209.
DSTC SPIN CONTROL OFF
The stability system's spin control function has been turned off, see page 145 for details.
AThe yellow warning symbol also lights up (see page 54).BThe red warning symbol also lights up (see page 54).

02 Instruments and controls
Center console controls
0261
NOTE
If the door mirrors have been inadvertently
pushed out of position (in a car wash, park-
ing lot, etc.) manually return them to normal
position. If mirror adjustment does not seem
to operate after manual folding, reset the
folding mirrors as follows:•
Turn the ignition key to position II.
•
Manually fold the mirror(s) to the normal
position.
•
Press the button to fold both mirrors in.
•
Press the button again to fold the mir-
rors out to their normal position.
Park Assist (option/accessory as
available)
This system provides an audi-
ble warning when the vehicle is
being parked or if it is driven
close to a person or object. For
more information see
page 147.
NOTE
The system activates automatically when
the engine is started, and can be deacti-
vated by pressing this button (e.g. when
towing a trailer) or reactivated if necessary.
Auxiliary lights
This button is used to switch on
auxiliary lights (if installed). A
light in the button will light up to
indicate that the auxiliary lights
are illuminated.
12 volt socket
This 12 volt socket can be used
to plug in certain accessories
such as cellular telephones,
etc. The ignition key must be in
position I (or higher) for the aux-
iliary socket to function.
NOTE
The auxiliary sockets can also be used for
cigarette lighters, which are available as
accessories at your Volvo retailer.Power child locks (option)
For more information on this
function, see page 124.

06 Starting and driving
Ignition switch and steering wheel lock
06
135 Ignition switch and steering wheel lock
0 – Locked position:
Remove the key to lock
the steering wheel
A.
I – Intermediate posi-
tion
B – "radio position":
Certain accessories,
radio, etc. on, daytime
running lights off.
II – Drive position: The
key position when driv-
ing. The vehicle's entire
electrical system is con-
nected.
III – Start position:
Release the key when the
engine starts. The key
returns automatically to
the Drive position.
A chime will sound if the key is left in the
ignition and the driver's door is opened.AThe gear selector must be in the P (Park) position (automatic
transmission).BPlease be aware that leaving the key in this position will
increase battery drain.AutostartThis function makes it possible to start the
vehicle without holding the key in the start
position (position III) until the engine starts.
Turn the key to position IIIand release it. The
starter motor will then operate automatically
(for up to ten seconds) until the engine starts.Steering wheel lockThe steering wheel lock might be under tension
when the vehicle is parked.
Turn the steering wheel slightly to free the igni-
tion key.
In order to help reduce vehicle theft, make sure
the steering wheel lock is engaged before leav-
ing the vehicle.
WARNING
Never switch off the ignition (turn the ignition
key to position 0) or remove the key from the
ignition switch while the vehicle is in motion.
This could cause the steering wheel to lock,
which would make the vehicle impossible to
steer.

06 Starting and driving
Brake system
06``143 BRAKE Brake circuit malfunction
The brake system is a hydraulic system con-
sisting of two master cylinders and two sepa-
rate brake circuits. If a problem should occur in
one of these circuits, it is still possible to stop
the vehicle with the other brake circuit.
If the brake pedal must be depressed farther
than normal and requires greater foot pressure,
the stopping distance will be longer.
A warning light in the instrument panel will light
up to warn the driver that a fault has occurred.
If this light comes on while driving or braking,
stop immediately and check the brake fluid
level in the reservoir.
NOTE
Press the brake pedal hard and maintain
pressure on the pedal – do not pump the
brakes.
WARNING
If the fluid level is below the MIN mark in the
reservoir or if a
Brake failure – Service
urgent
message is displayed in the text
window:DO NOT DRIVE
. Have the vehicle
towed to a trained and qualified Volvo serv-
ice technician and have the brake system
inspected.
NOTE
When the vehicle is at a standstill and the
engine is idling, e.g. at a traffic light and the
brake pedal is depressed, the pedal may go
down slightly. This is a normal function of
the power-assisted brake system.Power brakes function only when the
engine is runningThe power brakes utilize vacuum pressure
which is only created when the engine is run-
ning. Never let the vehicle roll to a stop with the
engine switched off.
If the power brakes are not working, the brake
pedal must be pressed approximately four
times harder than usual to make up for the lack
of power assistance. This can happen for
example when towing your vehicle or if the
engine is switched off when the vehicle is roll-
ing. The brake pedal feels harder than usual.Water on brake discs and brake pads
affects brakingDriving in rain and slush or passing through an
automatic car wash can cause water to collect
on the brake discs and pads. This will cause a
delay in braking effect when the pedal is
depressed. To avoid such a delay when the
brakes are needed, depress the pedal occa-
sionally when driving through rain, slush etc.
This will remove the water from the brakes.Check that brake application feels normal. This
should also be done after washing or starting
in very damp or cold weather.
Severe strain on the brake systemThe brakes will be subject to severe strain
when driving in mountains or hilly areas, or
when towing a trailer. Vehicle speed is usually
slower, which means that the cooling of the
brakes is less efficient than when driving on
level roads. To reduce the strain on the brakes,
shift into a lower gear and let the engine help
with the braking. Do not forget that, if you are
towing a trailer, the brakes will be subjected to
a greater than normal load.Anti-lock brakes (ABS)
If the warning lamp lights up there
is a malfunction of the ABS system
(the standard braking system will
however function) and the vehicle
should be driven cautiously to a
trained and qualified Volvo service technician
for inspection. The Anti-lock Braking System
(ABS) helps to improve vehicle control (stop-
ping and steering) during severe braking con-
ditions by limiting brake lockup. When the
system "senses" impending lockup, braking
pressure is automatically modulated in order to
help prevent lockup, which could lead to a skid.
The system performs a self-diagnostic test
when the engine is started and when the

06 Starting and drivingBrake system
06144
vehicle first reaches a speed of approxi-
mately 12 mph (20 km/h). The brake pedal will
pulsate several times and a sound may be
audible from the ABS control module. This is
normal.
To obtain optimal effect from the ABS system,
constant pressure should be kept on the brake
pedal. Do not pump the brake pedal.
The switching of the ABS modulator will be
audible and the brake pedal will pulsate during
braking. Please be aware that ABS does not
increase the absolute braking potential of the
vehicle. While control will be enhanced, ABS
will not shorten stopping distances on slippery
surfaces.ABS with EBD (Electronic Brake Force
Distribution)EBD is an integrated part of the ABS system.
EBD regulates the hydraulic pressure to the
rear brakes to help provide optimal braking
capacity. The brake pedal will pulsate during
braking, which is normal.
If the BRAKE and ABS warning lights come on
at the same time, this could indicate a fault in
the brake system.
1. Stop the vehicle in a suitable place and
switch off the engine.
2. Restart the engine.
•
If both warning lights go off, no further
action is required.
•
If both lights are still on after the engine has
been restarted, switch off the engine again
and check the brake fluid level (see
page 212 for the location of the brake fluid
reservoir).WARNING
If the fluid level is below the MIN mark in the
reservoir or if a
Brake failure – Service
urgent
message is displayed in the text
window: DO NOT DRIVE. Have the vehicle
towed to a trained and qualified Volvo serv-
ice technician and have the brake system
inspected.
•
If the brake fluid level is above the MIN
mark, drive carefully to a trained and quali-
fied Volvo service technician and have the
brake system inspected.
Emergency Brake Assistance (EBA)The EBA function is designed to provide full
brake effect immediately in the event of sud-
den, hard braking. The system is activated by
the speed with which you depress the brake
pedal.
NOTE
•
When the EBA system is activated, the
brake pedal will go down and pressure
in the brake system immediately increa-
ses to the maximum level. You must
maintain full pressure on the brake
pedal in order to utilize the system com-
pletely. There will be no braking effect if
the pedal is released. EBA is automati-
cally deactivated when the brake pedal
is released.
•
When the vehicle has been parked for
some time, the brake pedal may sink
more than usual when the engine is
started. This is normal and the pedal will
return to its usual position when it is
released.