2010 VOLVO XC90 stop start

06 Starting and driving
Brake system
06

145 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 running
The 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, consider-
ably higher pressure will be required on the
brake pedal to compensate for the lack of
power assistance. This can happen for exam-
ple when towing your vehicle or if the engine is
switched off when the vehicle is rolling. The
brake pedal feels harder than usual.
Water on brake discs and brake pads
affects braking
Driving 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 sys-
tem "senses" impending lockup, braking pres-
sure 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 driving
Brake system
06
146
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.

06 Starting and driving
Stability system
06
148
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 panel
The Stability Control indicator lightThis light indicates different condi-
tions, depending on how it illumi-
nates.
The Stability Control indicator light
illuminates for approximately 2 seconds
This indicates that the system is performing a
self-diagnostic test when the ignition is
switched on.
The Stability Control indicator light
flashes
This indicates that the stability system is
actively functioning to help counteract wheel
spin and/or a skid.
The Stability Control indicator light
glows steadily
ANTI 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 steadily
If DSTC 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 symbolThe 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 driving
Towing a trailer
06
154
Points to keep in mind when towing a
trailer
•When towing trailers without brakes, the
maximum permissible trailer weight is
1,700 lbs (750 kg).
•If necessary, redistribute the weight of any
cargo in the trailer to avoid excessive
weight on the trailer hitch.
•The maximum trailer weight listed in the
table for All Wheel Drive models, 5,000 lbs
(2250 kg) is only applicable when there are
not more than two occupants in the vehi-
cle, in the front seats, with a combined
weight of 300 lbs (135 kg), with no other
cargo in the vehicle.
•The maximum weight listed for Front
Wheel Drive models, 4,000 lbs (1800 kg) is
only applicable when there are not more
than four occupants in the vehicle, in the
front seats and second row of seats, with
a combined weight of 600 lbs (270 kg), with
no other cargo in the vehicle.
•Vehicles used for towing a trailer on a reg-
ular basis, or for long-distance highway
towing should be equipped with an auto-
matic transmission oil cooler and Volvo's
automatic self-leveling system for the rear
suspension. Consult your Volvo retailer.
•Volvo recommends the use of Volvo trailer
hitches that are specially designed for the
vehicle.
•All Volvo models are equipped with
energy-absorbing shock-mounted bump-
ers. Trailer hitch installation should not
interfere with the proper operation of this
bumper system.
•Increase tire pressure to recommended full
inflation pressure. See chapter "Wheels
and tires."
•When your vehicle is new, avoid towing
heavy trailers during the first 620 miles
(1,000 km).
•Engine and transmission are subject to
increased loads. Therefore, engine coolant
temperature should be closely watched
when driving in hot climates or hilly terrain.
Use a lower gear and turn off the air con-
ditioner if the temperature gauge needle
enters the red range.
•If the automatic transmission begins to
overheat, a message will be displayed in
the text window.
•Hauling a trailer affects handling, durabil-
ity, and economy.
•It is necessary to balance trailer brakes
with the towing vehicle brakes to provide a
safe stop (check and observe state/local
regulations).
•Do not connect the trailer's brake system
directly to the vehicle's brake system.
•Remove the ball and drawbar assembly
when the hitch is not being used.
•Volvo recommends the use of synthetic
engine oil when towing a trailer over long
distances or in mountainous areas.
NOTE
•When parking the vehicle with a trailer
on a hill, apply the parking brake before
putting the gear selector in P. When
starting on a hill, put the gear selector in
D before releasing the parking brake.
Always follow the trailer manufacturer's
recommendations for wheel chocking.
•If you use the manual (Geartronic) shift
positions while towing a trailer, make
sure the gear you select does not put
too much strain on the engine (using too
high a gear).

07 Wheels and tires
Tire Pressure Monitoring System (TPMS) – U.S. models only
07

189
The tire pressure monitoring system uses sen-
sors mounted in the tire valves to check infla-
tion pressure levels. When the vehicle is mov-
ing at a speed of approximately 20 mph
(30 km/h) or faster, these sensors transmit
inflation pressure data to a receiver located in
the vehicle.
USA – FCC ID: MRXG403MA4A
This device complies with part 15 of the FCC
rules. Operation is subject to the following
conditions: (1) This device may not cause
harmful interference, and (2) this device
must accept any interference received,
including interference that may cause unde-
sired operation.
When low inflation pressure is detected,
TPMS will light up the tire pressure warning
light (also referred to as a telltale) in the
instrument panel (see page 57), and will dis-
play a message in the text window. The
wording of this message is determined by
the degree of inflation pressure loss.
AOn certain models, the FCC code is MRXTG315AM04
When low inflation pressure is detected, TPMS
will light up the tire pressure warning light
(also referred to as a telltale) in the instrument
panel and will display one of the following mes-sages in the text window:
LOW TIRE PRESS.
CHECK TIRES or VERY LOW TIRE
PRESSURE.
NOTE
If a fault occurs in TPMS, the tire pressure
warning light will flash for approximately
1 minute and
TIRE PRESS SYST
SERVICE REQUIRED will be displayed.
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your
vehicle has tires of a different size than the size
indicated on the vehicle placard or tire inflation
pressure label, you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when
the low tire pressure telltale illuminates, you
should stop and check your tires as soon as
possible, and inflate them to the proper pres-
sure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to
tire failure. Under-inflation also reduces fuelefficiency and tire tread life, and may affect the
vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driv-
er's responsibility to maintain correct tire pres-
sure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low
tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the system
detects a malfunction, the telltale will flash for
approximately one minute and then remain
continuously illuminated. This sequence will
continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the mal-
function indicator is illuminated, the system
may not be able to detect or signal low tire
pressure as intended. TPMS malfunctions may
occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction telltale after replacing one
or more tires or wheels on your vehicle to
ensure that the replacement or alternate tires
and wheels allow the TPMS to continue to
function properly.

10 Audio
Radio functions
10
244
Station search
G027148
1. Choose radio mode AM/FM1/FM2 using
the SELECTOR control
or the AM/FM
button
.
2.
Press briefly on
or to search
for the next strong station. The radio will
search for the next audible station and then
stop.
3. Press one of the buttons again to start a
new search.
Manually search for a known frequency1.
Press and hold the or button
(or the corresponding buttons on the steer-ing wheel keypad).
MAN will be shown in
the display. The radio will slowly scroll in
the desired direction and then increase
speed after a few seconds.
2. Release the button when the desired fre-
quency is displayed.
3. If you need to adjust the frequency, press
briefly on
or .
The manual search function is available for five
seconds after you last pressed the button.
Storing stations
To store a selected station under one of the
station setting buttons 0 – 9
:
1. Set the desired station.
2. Press the button under which the station is
to be stored and keep it depressed. The
sound will be interrupted for several sec-
onds and
STATION STORED is shown in
the display. The station is now stored.
You can store up to 10 stations each for AM,
FM1 and FM2, i.e. a total of 30 stations.
Frequency ranges
RadioFrequency band
FM87.7 – 107.9 MHz
AM530 – 1710 kHz
Automatically storing stations –
AUTOSTORE
G027149
This function automatically searches for, and
stores up to 10 strong AM or FM stations in a
separate memory. If more than 10 stations are
found, the 10 strongest ones will be stored. The
function is especially useful in areas in which
you are not acquainted with radio stations or
their frequencies.

10 Audio
Radio functions
10

245
Starting autostore1.
Choose a frequency band with the AM/
FM button.
2.
Press and hold down the AUTO button
until AUTOSTORING is shown in the
display.
When
AUTOSTORING is no longer displayed,
the autostore process is complete. The auto-
matically stored stations can be selected withe
the preset (number) keys If there are no stations
with sufficient signal strength,
NO AST
FOUND is displayed.
Stopping autostorePress EXIT.
Selecting an autostored station1.
Press AUTO (1) briefly. AUTO will be dis-
played.
2. Press one of the preset buttons (0 – 9).
The radio will remain in Autostore mode until
AUTO, EXIT, or AM/FM is pressed.
SCAN
This function automatically searches the cur-
rently selected waveband (AM, FM1, or FM2)
for strong stations. When the radio finds a sta-
tion, it will pause for approximately 8 seconds,
after which it will continue scanning.
Activating/deactivating Scan1.
Choose a waveband by pressing the AM/
FM button.
2.
Press SCAN
. SCAN will be shown in the
display.
3.
Press EXIT to stop scanning.
Storing a station found by SCANStations can be stored on the preset buttons
while the SCAN function is activated.
•Press a preset button and hold it down until
Station stored is displayed.
This deactivates SCAN and the stored station
can be selected by pressing the preset button.
Radio text
Certain stations broadcast program informa-
tion, which can be shown in the display.
1.
Press the MENU button.
2.
Select
RADIOTEXT in the menu and press
ENTER.
Select
RADIOTEXT again to deactivate.

10 Audio
Rear Seat Entertainment – Dual Screen (RSE)*
10

* Option/accessory, for more information, see Introduction.259 Introduction
The RSE system can be used at the same time
as the vehicle’s audio system.
When the rear seat passengers play a DVD,
connect an external device to the RSE AUX
connectors, etc., and listen to the audio
through the cordless headphones, the driver
and front seat passenger can still use the vehi-
cle's audio system to listen to the radio, a CD,
music stored on an MP3 player, etc.
Please also refer to the Quick Guide provided
with the RSE system for additional information.
Electrical current - ignition keyThe RSE system can be activated with the igni-
tion in position I or II (see page 137 for infor-
mation on the ignition positions), or when the
engine is running. While the engine is being
started, a film or music that is currently being
played will pause momentarily and resume
playing when the engine has started.
When the RSE system has been used once
when the ignition is switched off, it will be then
be blocked for further use. RSE can be restar-
ted by turning the ignition key to position I.
NOTE
Using RSE for more than approximately
10 minutes with the engine switched off may
drain the vehicle’s battery and make it diffi-
cult or impossible to start the engine.
If this occurs, a message will be displayed
on the RSE system’s screens.
Music
Listening to a music CD1. Insert a CD into the RSE player’s slot with
the disc’s label facing upward.
> The CD will begin to play automatically.
2. Switch on the cordless headphones and
select CH A for the left screen or CH B for
the right screen.
> This will direct the sound to the head-
phones.
3. Adjust the headphone volume by using the
thumb wheel on the headphones.
To listen through the vehicle’s audio sys-
tem speakers, press MODE on the audio
system control panel and select
AUX.
Press
on the RSE remote to route the
sound through the speakers.
Selecting a folder on the CD1. Insert the CD in the player.2.
Press
.
3. Use the navigation buttons (the arrow keys
surrounding the OK button on the RSE
remote control) to highlight a folder and/or
a specific track.
4.
Press
to select a sub-folder.
Playback alternativesThe CD can be played in several different ways.
Use the navigation buttons to select one of the
alternatives.
With the dialogue box displayed:
1. Press the right navigation button to access
the menu to the right..
2. Use the navigation keys to select one of the
alternatives.
3.
Confirm your choice by pressing
.
Changing tracks on the CD
Change tracks on the CD by pressing
or . Hold the respective buttons
down for fast forward or reverse.
Pause1. Pause and restart the CD by pressing
.
2.
Stop the CD by pressing
.
3.
Press
again to eject the CD.