sensor VOLVO XC70 2011 Owner´s Manual

04 Comfort and driving pleasure
Collision warning with Auto-brake*
04
178* Option/accessory, for more information, see Introduction.
CauseAction
The surface of the windshield in front of the camera is dirty or covered
with ice or snow.Clean or clear the section of the windshield in front of the camera.
Fog, heavy rain or snow is interfering with the function of the camera.No action possible. Heavy precipitation may affect the function of the
camera.
The surface of the windshield is clean but the message remains in the
display.Wait a short time. It may take several minutes for the camera to register
visibility.
The surface between the inside of the windshield and the camera is dirty.Contact an authorized Volvo retailer or service technician to have this
surface cleaned.
Symbols and messages in the display
SymbolMessageDescription
Collis'n warning OFFCollision Warning is switched off. This message is displayed when the engine is started and will dis-
appear after approx. 5 seconds. It can also be erased by pressing the READ button.
Collision warn. Unavaila-
bleCollision Warning cannot be activated. This message is displayed when the driver attempts to activate
the function. It will disappear after approx. 5 seconds or can be erased by pressing the READ button.
Auto braking was acti-
vatedAuto-braking has been active. This message can be erased by pressing the READ button.
Windscreen Sensors
blockedThe camera is temporarily not functioning. This message is displayed if the camera is obstructed by
snow, ice, dirt, etc., on the windshield. Clean the area of the windshield in front of the camera, see
page 177 for more information on the camera’s limitations.

04 Comfort and driving pleasure
Collision warning with Auto-brake*
04
* Option/accessory, for more information, see Introduction.179
SymbolMessageDescription
Radar blocked See man-
ualCollision Warning and Auto-brake are temporarily not functioning. The radar sensor is blocked, for
example by heavy rain or snow that has accumulated in front of the sensor, and cannot detect other
vehicles, see page 166 for more information on the radar sensor’s limitations.
Collision warn. Service
requiredCollision Warning and Auto-brake are partially or completely not functioning.
Contact a trained and qualified Volvo service technician if the message remains in the display.

04 Comfort and driving pleasure
Driver Alert System*
04
182* Option/accessory, for more information, see Introduction.
SymbolMessageDescription
Driver alertThe function is analyzing the driver’s driving pattern. The number of bars varies from 1–5, where a low
number of bars indicates erratic driving. A high number of bars indicates stable driving.
Driver Alert Time for a
breakThe vehicle has been driven erratically. The driver receives an audible signal and a text message.
Windscreen Sensors
blockedThe camera is temporarily not functioning, due to snow, ice, or dirt on the windshield. Clean the area
of the windshield in front of the camera. See page 177 for information on the camera’s limitations.
Driver Alert Sys Service
requiredThe system is not functioning. Contact a trained and qualified Volvo service technician if the message
remains in the display.

04 Comfort and driving pleasure
Driver Alert System*
04
184* Option/accessory, for more information, see Introduction.
Settings
Settings for Lane Departure Warning can be
made in the menu system under Car settings
Lane departure warning. See page
124 for more information on the menu system.
There are two alternatives:
On at start-up: This selection puts the func-
tion in standby mode each time the engine is
started. Otherwise, the system will be in the
mode that it was in when the engine was
switched off.
Increased sensitivity: This selection increa-
ses the function’s sensitivity. Warnings will be
given at an earlier stage and fewer limitations
apply. When this setting is being used, the sys-tem only needs to monitor lane marker lines on
one side of the vehicle to change status to
Lane Depart Warn Available.
Symbols and messages in the display
SymbolMessageDescription
Lane departure warning ON/Lane
departure warning OFFThe function is switched on or off. The text disappears after 5 seconds.
-Lane Depart Warn AvailableThe function is monitoring the road’s marker lines.
-Lane Depart Warn UnavailableSpeed is below 37 mph (60 km/h) or if the road lacks clear marker lines.
Windscreen Sensors blockedThe camera is temporarily not functioning, due to snow, ice, or dirt on the windshield. Clean
the area of the windshield in front of the camera. See page 177 for information on the camera’s
limitations.
Driver Alert Sys Service requiredThe system is not functioning. Contact a trained and qualified Volvo service technician if the
message remains in the display.

04 Comfort and driving pleasure
Park assist*
04

* Option/accessory, for more information, see Introduction.185 Introduction
The park assist system is designed to assist
you when driving into parking spaces, garages,
etc. It utilizes four ultrasound sensors located
in one or both bumpers to measure the dis-
tance to a vehicle, object, or a person who may
be close to the front or rear of your vehicle. An
audible signal and symbols in the audio sys-
tem’s display indicate the distance to the
object.
This system is available in the rear bumper
only, or in both the front and rear bumpers.
WARNING
Park Assist is an information system, NOT a
safety system. This system is designed to
be a supplementary aid when parking the
vehicle. It is not, however, intended to
replace the driver's attention and judge-
ment.
Function
Park assist button
The system is activated automatically when the
vehicle is started. The indicator light in the but-
ton in the center console illuminates when the
system is on.
•The front park assist system is active from
the time the engine is started until the vehi-
cle exceeds a speed of approximately
10 mph (15 km/h). It is also active when the
vehicle is backing up.
•Rear park assist is active when the engine
is running and reverse gear has been
selected.
Activating/deactivatingThe system is activated automatically when the
vehicle is started.

Press the Park assist button on the center
console to temporarily deactivate the sys-
tem(s).
> The indicator light in the button will go
out when the system has been deacti-
vated.
Park assist will be automatically reactivated the
next time the engine is started, or if the button
is pressed (the indicator light in the button will
illuminate).
NOTE
•Front park assist is disengaged auto-
matically when the parking brake is
applied.
•If the vehicle is equipped with front and
rear park assist, both systems will be
deactivated by pressing the button.

04 Comfort and driving pleasure
Park assist*
04
186* Option/accessory, for more information, see Introduction.
Signals from the park assist system
Active
Active
Active
1
2
3
Views in the display
Visual indicatorThe audio system’s display gives an overview
of the vehicle’s position in relation to a
detected object.
The markers in the display indicate that one or
more of the four sensors has detected an
object. The greater the number of markers, the
closer the vehicle is to the object.
Display in a vehicle with rear park assist
only: An object has been detected by both of
the right rear sensors.
Display in a vehicle with both front and rear
park assist. The solid marker in this example
indicates that an object is closer than approx-
imately 1 foot (30 cm) to the right front sensor.
Display in a vehicle with both front and rear
park assist: Reverse gear is selected and no
objects have been detected in front of or
behind the vehicle.
Audible signalThe Park Assist system uses an intermittent
tone that pulses faster as you come close to an
object, and becomes constant when you are
within approximately 1 ft (30 cm) of an object
in front of or behind the vehicle (example 2 in
the illustration). If there are objects within this
distance both behind and in front of the vehicle,
the tone alternates between front and rear
speakers.
If the volume of another source from the audio
system is high, this will be automatically low-
ered.
Rear park assist
G017833
The distance monitored behind the vehicle is
approximately 5 ft (1.5 m). The audible signal
comes from the rear speakers.
The system must be deactivated when towing
a trailer, carrying bicycles in a rear-mounted
carrier, etc, which could trigger the rear park
assist system's sensors.
NOTE
Rear park assist is deactivated automati-
cally when towing a trailer if Volvo genuine
trailer wiring is used.

04 Comfort and driving pleasure
Park assist*
04

* Option/accessory, for more information, see Introduction.187
Front park assist
G021424
The distance monitored in front of the vehicle
is approximately 2.5 ft (0.8 m). The audible sig-
nal comes from the audio system's front
speakers.
It may not be possible to combine auxiliary
headlights and front park assist since these
lights could trigger the system's sensors.
NOTE
Front park assist is deactivated when the
parking brake is applied and or when the
gear selector is in the P position.
Faults in the system
If the information symbol illuminates and Park
assist syst Service required is shown on the
information display, this indicates that the sys-
tem is not functioning properly and has been
disengaged. Consult a trained and qualified
Volvo service technician.
CAUTION
In certain circumstances, the park assist
system may give unexpected warning sig-
nals that can be caused by external sound
sources that use the same ultrasound fre-
quencies as the system. This may include
such things as the horns of other vehicles,
wet tires on asphalt, pneumatic brakes,
motorcycle exhaust pipes, etc. This does
not indicate a fault in the system.
Cleaning the sensors
Location of the front sensors
Location of the rear sensors
The sensors must be cleaned regularly to
ensure that they work properly. Clean them

04 Comfort and driving pleasure
Park assist*
04
188* Option/accessory, for more information, see Introduction.
with water and a suitable car washing deter-
gent.
Ice and snow covering the sensors may cause
incorrect warning signals.
NOTE
If the sensors are obstructed by e.g., dirt,
snow, or ice, this could result in false warn-
ing signals from the park assist system.

04 Comfort and driving pleasure
Rear Park Assist Camera (PAC)*
04
190* Option/accessory, for more information, see Introduction.
Guiding lines
G000000
The lines on the screen are projected as if they
were a path on the ground behind the vehicle
and are affected by the way in which the steer-
ing wheel is turned. This enables the driver to
see path the vehicle will take, even if he/she
turns the steering wheel while backing up.
NOTE
When backing up with a trailer, the guiding
lines show the path that the vehicle will
take, not the trailer.
WARNING
Keep in mind that the image on the screen
only shows the area behind the vehicle. The
driver must always watch for people, ani-
mals, other vehicles, etc., near the sides of
the vehicle when turning while backing up.
Marker lines
The PAC system's lines
Marker line for a 1-foot (30-centimeter)
zone behind the vehicle
Marker line for the clear back-up zone
"Wheel tracks"
The solid line (1) indicates a zone within 1 ft
(30 centimeters) of the rear bumper.The dashed line (2) indicates the clear zone of
approximately 5 feet (1.5 m) behind the
bumper. These lines also indicate the outmost
limits that any object (door mirrors, corners of
the body, etc.) extends out from the vehicle ,
even when the it turns.
The "wheel tracks" (3) between the side marker
lines show where the wheels will roll and can
extend up to approximately 10.5 ft (3.2 m)
behind the bumper if there are no objects in the
way.
Vehicles equipped with Park Assist
G031931
If the vehicle is equipped with the optional Park
Assist system, the distance to an object will be
indicated more exactly and colored markers in
the display indicate which of the sensor(s) has
detected the object.

04 Comfort and driving pleasure
Rear Park Assist Camera (PAC)*
04
* Option/accessory, for more information, see Introduction.191
The markers change color (from yellow to
orange to red) as the vehicle comes closer to
the object.
Marker (color)Distance to
object
Green> 5 ft (1.5 m)
Yellow5–1 ft (0.3–1.5)
Red0–1 ft (0–0.3)
SettingsTo make PAC system settings, press the
MENU button in the center console control
panel and go to Main menu
Car settings
and select one of the following:
Parking camera settings
•Mark Park Assist lines to display the side-
lines while backing up.
•Mark Distance information to display the
intersecting lines while backing up.
Activating the system
•Mark Automatic to activate PAC each
time reverse gear is selected.
•Mark Off to turn off PAC completely.
Summary
•The camera is activated when the gear
selector is moved to R (this can bechanged in the settings menu) and the
image is shown on the navigation system's
display.
•When backing up, two solid lines are pro-
jected on the screen to show the path that
the vehicle's rear wheels will take. These
lines are affected by movements of the
steering wheel. The vehicle's approximate
outer dimension are shown by two dashed
lines.
•The graphic lines will not be displayed
when backing up with a trailer that is con-
nected to the vehicle's electrical system.
•Objects on the ground that are closer than
1 ft (30 centimeters) cannot be detected by
the camera.
•The camera is active for approx.
5 seconds after the gear selector is moved
to R or until the vehicle's speed exceeds
6 mph (10 km/h).
•The optional Park Assist sensors and the
parking camera work together and infor-
mation from the sensors is shown graphi-
cally on the display.
•If the Park Assist* system's sensors detect
a trailer, the camera will zoom in on the
trailer hitch to help position the trailer's
tongue correctly.
•The graphic lines shown on the screen
when the vehicle backs up can be disabled
in the settings menu.
•Automatic or manual zoom can be
selected in the settings menu.
Limitations
Even if a fairly small section of the screen image
appears to be obstructed, this may mean that
a relatively large area behind the vehicle is hid-
den and objects there may not be detected
until they are very near the vehicle.
NOTE
Bicycle carriers or other accessories moun-
ted on the tailgate may obstruct the cam-
era's field of view.
Keep in mind
•Keep the camera's lens free of dirt, ice and
snow. Remove ice and snow carefully to
avoid scratching the lens.
•Clean the lens regularly with warm water
and a suitable car washing detergent.