brake VOLVO XC70 2012 Owner´s Manual

03 Your driving environment
Brakes
03
120
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.
Symbols in the instrument panel
SymbolSpecification
Steady glow – Check the brake
fluid level. If the level is low, fill
with brake fluid and check for
the cause of the brake fluid
loss.
Steady glow for two seconds
when the engine is started –
There was a fault in the brake
system's ABS function when
the engine was last running.
WARNING
If and come on at the same time
and the brake level is below the MIN mark
in the reservoir or if a brake system-related
message is shown in the information dis-
play: DO NOT DRIVE. Have the vehicle
towed to a trained and qualified Volvo serv-
ice technician and have the brake system
inspected.

03 Your driving environment
Parking brake
03

121 Electric parking brake
An electric parking brake has the same func-
tion as a manual parking brake.
NOTE
•A faint sound from the parking brake's
electric motor can be heard when the
parking brake is being applied. This
sound can also be heard during the
automatic function check of the parking
brake.
•The brake pedal will move slightly when
the electric parking brake is applied or
released.
Low battery voltageIf the battery voltage is too low, the parking
brake cannot be applied or released. Connect
an auxiliary battery if the battery voltage is too
low, see page 113.
Applying the electric parking brake
Parking brake control
1. Press firmly on the brake pedal.
2. Push the control.
>
The
symbol in the instrument
panel flashes while the parking bake is
being applied, and glows steadily when
the parking brake has been fully applied.
3. Release the brake pedal and ensure that
the vehicle is at a standstill.
4. When the vehicle is parked, the gear selec-
tor must be in position P.
NOTE
•In an emergency the parking brake can
be applied when the vehicle is moving
by holding in the control. Braking will be
interrupted when the accelerator pedal
is depressed or the control is released.
•An audible signal will sound during this
procedure if the vehicle is moving at
speeds above 6 mph (10 km/h).
Parking on a hill
•If the vehicle is pointing uphill, turn the front
wheels so that they point away from the
curb.
•If the vehicle is pointing downhill, turn the
front wheels so that they point toward the
curb.
The parking brake should also be applied.

03 Your driving environment
Parking brake
03
122
Releasing the electric parking brake
Parking brake control
Manual release1. Fasten the seat belt.
2. Insert the remote key in the ignition slot (or
press the START/STOP ENGINE button
on vehicles with the optional keyless drive).
3. Press firmly on the brake pedal.
4. Pull the parking brake control.
Automatic release1. Start the engine.
NOTE
•For safety reasons, the parking brake is
only released automatically if the engine
is running and the driver is wearing a seat
belt.
•The electric parking brake will be
released immediately when the acceler-
ator pedal is pressed and the gear selec-
tor is in position D or R.
2. Fasten the seat belt.
3.
Move the gear selector to position D or R
and press the accelerator pedal. The park-
ing brake will release when the vehicle
begins to move.
Heavy load uphillA heavy load, such as a trailer, can cause the
vehicle to roll backward when the parking
brake is released automatically on a steep
incline. To help avoid this:
1. Keep the electric parking brake lever
pushed in with the left hand while shifting
into Drive with the right.
2. While pressing the throttle pedal to pull
away, release the parking brake lever only
after the vehicle begins to move.
Symbols
SymbolSpecification
Read the message in the infor-
mation display
A flashing symbol indicates that
the parking brake is being
applied. If the symbol flashes in
any other situation then this
means that a fault has arisen.
Read the message on the infor-
mation display.
Messages
Park brake not fully released – A fault is pre-
venting the parking brake from being released.
Try to apply the parking brake and release it
several times. If the problem persists, contact

03 Your driving environment
Parking brake
03
123
an authorized Volvo workshop. If you drive off
with this error message showing, a warning
signal sounds.
Parking brake not applied – A fault is pre-
venting the parking brake from being applied.
Try to apply the parking brake and release it
several times. If the problem persists, contact
an authorized Volvo workshop. If you drive off
with this error message showing, a warning
signal sounds.
Parking brake Service required – A fault has
occurred. Try to apply and release. Contact a
Volvo workshop if the fault remains.
WARNING
If the vehicle must be parked before the fault
has been corrected, always put the gear
selector in P and turn the wheels so that
they point away from the curb if the vehicle
is pointing uphill or toward the curb if it is
pointing downhill.

03 Your driving environment
Hill Descent Control (HDC)*
03
124* Option/accessory, for more information, see Introduction.
Introduction
Normally, when the accelerator pedal is
released while driving down hills, the vehicle's
speed slows as the engine runs at lower rpm
(the normal engine braking effect). However, if
the downhill gradient becomes steeper and if
the vehicle is carrying a load, speed increases
despite the engine braking effect. In this situa-
tion, the brakes must be applied to reduce the
vehicle's speed.
HDC is a type of automatic engine brake and
makes it possible to increase or decrease the
vehicle's speed on downhill gradients using
only the accelerator pedal, without applying
the brakes. The brake system functions auto-
matically to maintain a low and steady speed.
HDC is particularly useful when driving down
steep hills with rough surfaces, and where the
road may have slippery patches.
WARNING
HDC does not function in all situations, and
is a supplementary braking aid. The driver
has full responsibility for driving in a safe
manner.
Function
•HDC can be switched on and off with the
button in the center console. An indicator
light in the button illuminates when HDC is
activated.
•The indicator light in the instrument
panel illuminates and a message is dis-
played when the system is controlling the
vehicle's speed.
•HDC only functions when first or reverse
gears are selected (1 will be shown in the
instrument panel display when first gear is
selected).
NOTE
HDC cannot be activated if the gear selector
is the D position.
Using HDC
HDC allows the car to roll forward at a maxi-
mum speed of 6 mph (10 km/h), and 4 mph
(7 km/h) in reverse. However, the accelerator
pedal can be used to select any speed that is
possible in first or reverse gears. When the
accelerator pedal is released, speed is quickly
reduced again to 6 mph (10 km/h) or 4 mph
(7 km/h), depending on the gear selected,
regardless of the hill's gradient. It is not nec-
essary to apply the brakes.
•The brake lights illuminate automatically
when HDC is controlling the vehicle's
speed.
•The driver can slow or stop the vehicle at
any time by applying the brakes.
HDC is deactivated when:
•The button on the center console is
pressed
•A gear higher than first gear is selected
•D is selected on vehicles with an automatic
transmission
HDC can be deactivated at any time. If this is
done while driving down a steep hill, the sys-
tem's braking effect will decrease gradually.

126* Option/accessory, for more information, see Introduction.
Volvo Sensus........................................................................................ 128
Menus and messages........................................................................... 129
The MY CAR menus.............................................................................. 131
Climate system..................................................................................... 137
Trip computer........................................................................................ 146
Stability system..................................................................................... 148
Active chassis system–Four C*............................................................. 150
Cruise control........................................................................................ 151
Adaptive Cruise Control (ACC)*............................................................ 153
Distance Alert* ..................................................................................... 163
City Safety™ ........................................................................................ 166
Collision warning with Full Auto-brake and Pedestrian Detection*...... 171
Driver Alert System* ............................................................................. 179
Park assist*........................................................................................... 185
Rear Park Assist Camera (PAC)* .......................................................... 189
Blind Spot Information System*............................................................ 193
Passenger compartment convenience................................................. 197

04 Comfort and driving pleasure
Stability system
04
149
Symbols and messages in the main instrument panel
SymbolMessageDescription
DSTC Temporarily OFFThe DSTC system function has been temporarily reduced due to high brake disc temperature. DSTC
reactivates automatically when the brakes have cooled.
DSTC Service requiredThe DSTC system is not functioning properly.
•Stop the vehicle in a safe place, turn off the engine and restart it.
•If the message is still displayed when the engine has restarted, drive to an authorized Volvo work-
shop to have the system inspected.
and
"Message"Read the message in the information display
Steady glow for 2 secs.The system is performing a self-diagnostic test.
Flashing symbolDSTC is actively functioning to help counteract wheel spin and/or a skid.
-Sport mode has been activated.
WARNING
The stability system is intended to help
improve driving safety. It supplements, but
can never replace, the driver's judgment
and responsibility when operating the vehi-
cle. Speed and driving style should always
be adapted to traffic and road conditions.

04 Comfort and driving pleasure
Cruise control
04

151 Operation
Steering wheel-mounted controls and display
Standby mode
Resume set speed
Deactivating
Activate/set speed
Set speed indicator (parentheses indicate
standby mode)
Engaging the cruise control functionBefore a speed can be set, the cruise control
system must be engaged (put in standby
mode).

Press the
symbol (1).>
The symbol
illuminates and the text
(---) mph (5) indicates that cruise con-
trol is in standby mode.
NOTE
•Putting cruise control in standby mode
does not set a cruising speed.
•When cruise control is in standby mode,
the driver's seat belt must be fastened
before a cruising speed can be set.
Setting a speed
Use the or buttons set the vehicle's cur-
rent speed. The set speed is shown in the dis-
play.
NOTE
Cruise control cannot be engaged at
speeds below 20 mph (30 km/h).
Adjusting the set speedAfter a speed has been set, it can be increased
or decreased by using the
or buttons.
1.
Press and hold down
or until the
vehicle reaches the desired speed.
> This will become the set speed when the
button is released.2.
Press
or for approximately a half
second and release the button to increase
or decrease vehicle speed by approxi-
mately 1 mph (1.6 km/h).
NOTE
•A temporary increase in speed by
pressing the accelerator pedal, for less
than 1 minute (e.g. when passing
another car), does not affect the current
cruise control setting. The vehicle will
automatically return to the previously
set speed when the accelerator pedal is
released.
•If one of the cruise control buttons is
kept depressed for more than approx.
1 minute cruise control is disengaged.
The engine must then be switched off in
order to reset cruise control.
Automatic deactivationCruise control is automatically deactivated
temporarily if one of the following occurs:
•If the speed drops below approximately
20 mph (30 km/h).
•When the brake pedal is depressed.
•If the gear selector is moved to position N.

04 Comfort and driving pleasure
Adaptive Cruise Control (ACC)*
04
154* Option/accessory, for more information, see Introduction.
WARNING
•Adaptive Cruise Control is not a colli-
sion avoidance system. The driver is
always responsible for applying the
brakes if the system does not detect
another vehicle.
•Adaptive Cruise Control does not react
to people or animals, or small vehicles
such as bicycles and motorcycles. It
also does not react to slow moving,
parked or approaching vehicles, or sta-
tionary objects.
•Do not use Adaptive Cruise Control in
demanding driving conditions such as
city driving or other heavy traffic situa-
tions, in slippery conditions, when there
is a great deal of water or slush on the
road, during heavy rain or snow, in poor
visibility, on winding roads or on high-
way on- or off-ramps.
The distance to the vehicle ahead (in the same
lane) is monitored by a radar sensor. Your vehi-
cle's speed is regulated by accelerating and
braking. The brakes may emit a sound when
they are being modulated by the adaptive
cruise control system. This is normal.
WARNING
The brake pedal moves when the adaptive
cruise control system modulates the
brakes. Do not rest your foot under the
brake pedal.
The ACC system is designed to smoothly reg-
ulate speed. However, the driver must apply
the brakes in situations that require immediate
braking. This applies when there are great dif-
ferences in speed between vehicles, or if the
vehicle ahead brakes suddenly.
WARNING
Due to limitations in the radar sensor, brak-
ing may occur unexpectedly or not at all,
see page 158.
Adaptive Cruise Control can be put in active
mode at any permitted speed. However, if the
vehicle's speed falls below 18 mph (30 km/h)
or if engine speed (rpm) becomes too low, ACC
disengages (goes into standby mode) and will
no longer modulate the brakes
2. The driver will
then have to maintain a safe distance to the
vehicle ahead.
WARNING
When Adaptive Cruise Control is in standby
mode or is switched off completely, the
brakes will not be modulated automatically.
The driver must assume full control over the
vehicle.
Warning light—driver braking requiredAdaptive Cruise Control can exert brake force
that is equivalent to approximately 40% of the
vehicle's total braking capacity. In situations
requiring more brake force than ACC can pro-
vide and if the driver does not apply the brakes,
an audible signal from the Collision Warning
system will sound and warning light will illumi-
nate (see page 172) in the windshield to alert
the driver to react.
NOTE
Strong sunlight, reflections, extreme light
contrasts, the use of sunglasses, or if the
driver is not looking straight ahead may
make the visual warning signal in the wind-
shield difficult to see.
2Does not apply to vehicles with the optional Queue Assist. See page 157 for more information.

04 Comfort and driving pleasure
Adaptive Cruise Control (ACC)*
04

* Option/accessory, for more information, see Introduction.155
WARNING
Adaptive Cruise Control only warns of vehi-
cles detected by the radar sensor, see
page 158. In some cases there may be no
warning or the warning may be delayed. The
driver should always apply the brakes when
necessary.
Steep inclines and/or heavy loadsACC is primarily intended for use on fairly level
roads. The system may have difficulty main-
taining the correct distance to a vehicle ahead
on steep inclines, if the vehicle is carrying a
heavy load or is towing a trailer. In these situa-
tions, the driver should always be prepared to
apply the brakes if necessary.
Operation
Controls and display
Resume previous settings, increase speed
(each additional press increases speed by
1 mph (approximately 2 km/h).
Standby mode on/off
Set time interval
Put in active mode and set a speed
Set speed (parentheses indicate standby
mode)
Time interval while it is being set
Time interval after it has been set
Putting ACC in standby modeBefore ACC can be used to regulate speed
and/or the distance to a vehicle ahead, it must
first be put in standby mode.
To do so:
Press
.
The
symbol appears in the display and
parentheses (---) indicate that ACC is in
standby mode.
NOTE
The driver's door must be closed and the
driver's seat belt must be fastened before
ACC can be put in active mode. If the driv-
er's seat belt is taken off or if the driver's
door is opened, ACC will return to standby
mode.
Setting a speedOnce ACC has been put in standby mode, use
the
or buttons to store (set) the vehicle's
current speed. This puts the system in active
mode. The set speed, for example 55 mph, is
shown in the display.