sensor VOLVO XC90 TWIN ENGINE 2018 Repair Manual

DRIVER SUPPORT
* Option/accessory.355
Examples of further limitations
•Dirt, ice and snow covering the sensors may
reduce functionality and prevent the system
from providing warnings. For additional infor-
mation, see the section "Recommended
maintenance for Cross Traffic Alert".
• CTA is automatically deactivated if a trailer,
bicycle holder or similar is connected to the
vehicle's electrical system.
• For CTA to function optimally, bicycle hold-
ers, luggage racks or similar should not be
mounted on the vehicle's towbar.
Related information
•
Cross Traffic Alert* (p. 353) Recommended maintenance for
Cross Traffic Alert
•
For optimal performance, it is important to
keep the areas in front of the sensors clean.
• Do not attach any objects, tape or decals to
the surface of the sensors. Keep this area clean (on both the left and right sides of
the vehicle)
92
.
The CTA sensors are located on the inside of
each of the rear fenders/bumpers and are also
used by the BLIS 93
and Rear Collision Warning
functions.
CAUTION Repair of BLIS and CTA components or
repainting of the bumper may only be per-
formed by a workshop – an authorized Volvo
workshop is recommended.
Related information
•
Cross Traffic Alert* (p. 353)
• BLIS* (p. 348)
• Rear Collision Warning (p. 347) 92
Note: This illustration is general and details may vary depending on mod\
el.
93 Blind Spot Information

DRIVER SUPPORT
* Option/accessory.
356 Cross Traffic Alert messages
A number of messages related to CTA 94
may be
displayed in the instrument panel.
Some examples of symbols and messages are shown in the table below. Message
Meaning
Blind spot sensor
Service required The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.
Blind spot system off
Trailer attached BLIS and CTA have been deactivated because a trailer has been connected \
to the vehicle's electrical system.A text message can be erased by briefly pressing
the
button in the center of the right-side
steering wheel keypad.
If the message persists: Contact a workshop ‒ an
authorized Volvo workshop is recommended.
Related information
• Cross Traffic Alert* (p. 353) 94
Cross Traffic Alert

DRIVER SUPPORT
}}
369
Lane Keeping Aid symbols and
messages
A number of symbols and messages related to
Lane Keeping Aid LKA 113
may be displayed in
the instrument panel. Some examples of symbols and messages are shown in the table below. Symbol
Message MeaningDriver support system
Reduced functionality Service required
The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo work-
shop is recommended. Windscreen sensor
Sensor blocked, see Owner's manual
The camera's ability to detect the lane in front of the vehicle is re\
duced.Lane Keeping Aid
Apply steering
LKA's steering assistance is disabled when the driver's hands are \
not on the wheel. Follow
the instructions and steer the vehicle.Lane Keeping Aid
Standby until steering applied
LKA will go into standby mode until the driver begins steering the vehic\
le again.113
Lane Keeping Aid

DRIVER SUPPORT
379
NOTEThe function uses the vehicle's camera unit,
which has some general limitations – see the
section "Camera unit limitations".
NOTE
The function uses the vehicle's radar unit,
which has some general limitations – see the
section "Radar unit limitations".
In addition to the camera and radar sensor, the
function also uses the vehicle's rearward-facing
radar, which has certain general limitations the
driver should be aware of. See additional informa-
tion in the section "BLIS limitations".
Related information
•
Steering assistance at risk of collision
(p. 372)
• Speed-dependent steering wheel resistance
(p. 272)

DRIVER SUPPORT
380Symbols and messages for steering
assistance during collision risks
A number of symbols and messages related to
the function may be displayed in the instrument
panel.
Some examples of symbols and messages are shown in the table below.
Symbol
Message MeaningCollision avoidance assistance
Automatic intervention
When the function is activated, a message will appear to alert the drive\
r.Windscreen sensor
Sensor blocked, see Owner's manual
The camera's ability to detect the lane in front of the vehicle is re\
duced.A text message can be erased by briefly pressing
the
button in the center of the right-side
steering wheel keypad.
If the message persists: Contact a workshop ‒ an
authorized Volvo workshop is recommended.
Related information
• Steering assistance at risk of collision
(p. 372)

DRIVER SUPPORT
* Option/accessory.381
Park Assist*
The Park Assist function can help the driver
when maneuvering in tight spaces by indicating
distances to obstacles using audible signals and
graphics in the center display. Display view showing obstacle zones and sensor sec-
tors.
The center display shows an overview of the vehi-
cle in relation to objects that have been detected.
The marked sector indicates where the obstacle
is located. The closer the vehicle symbol is to a
marked sector, the closer the detected obstacle
is to your vehicle.
The audible signals will also speed up the closer
the obstacle is to the vehicle. The volume of the
audio system will be automatically lowered.
Audible signals for obstacles in front and to the
sides of the vehicle are active when the vehicle is moving but will cease after the vehicle has been
stationary for approx. 2 seconds. Audible signals
for obstacles behind the vehicle will remain active
even when the vehicle is stationary.
If a detected obstacle is within 30 cm (1 ft) from
the front or rear of the vehicle, the tone will
become constant and the active sensor's field
closest to the vehicle symbol will be filled in.
The volume of the Park Assist audible signals
can be adjusted while the signal is being given
using the >II knob or in the center display's Top
view under Settings.
NOTE •
Acoustic warnings are only given for
objects directly in front of the vehicle's
path.
WARNING •
The Parking Assist function is supple-
mentary driver support intended to facili-
tate driving and help make it safer – it
cannot handle all situations in all traffic,
weather and road conditions.
• The parking sensors have dead/blind
spots where objects cannot be detected.
• Pay particular attention to people and
animals near the vehicle.
• Parking Assist is not a substitute for the
driver's attention and judgment. The driver
is always responsible for ensuring the
vehicle is driven in a safe manner, at the
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.
Related information
•Park Assist front, rear and sides (p. 382)
• Activating/deactivating Park Assist (p. 383)
• Park Assist limitations (p. 383)
• Recommended maintenance for Park Assist
(p. 384)
• Park Assist symbols and messages (p. 385)

DRIVER SUPPORT
382Park Assist front, rear and sides
Park Assist has different parameters depending
on which part of the vehicle is approaching an
obstacle.
Back Note: This illustration is general and details may vary
depending on model.
The rear sensors will be activated if the vehicle
begins rolling backward or if reverse gear is
engaged.
The distance monitored begins
approx. 1.5 meters (5 feet) behind the vehicle.
The rear sensors will be automatically deactivated
if the vehicle is backing up with a trailer attached.
NOTE When reversing with e.g. a trailer or bike car-
rier on the trailer hitch – without Volvo original
trailer cables – the Parking Assist system may
have to be turned off manually to prevent the
sensors from reacting to these.
Side sensors
Park Assist's side sensors are automatically acti-
vated when the engine is started. They are active
at speeds below 10 km/h (6 mph).
The distance monitored begins approx. 30 cm
(1 ft) from the sides. The audible signal for obsta-
cles along the sides of the vehicle is emitted
from the side speakers.
Front camera Note: This illustration is general and details may vary
depending on model.
Park Assist's front sensors are automatically acti-
vated when the engine is started. The front sen-
sors are active at speeds below 10 km/h
(6 mph).
The distance monitored begins approx. 80 cm
(2.5 ft) in front of the vehicle.
NOTE
The Parking Assist system is deactivated
when the parking brake is applied or when P
is selected on vehicles with automatic trans-
mission.

DRIVER SUPPORT
}}
* Option/accessory. 383
CAUTIONWhen installing auxiliary lights: Make sure
these do not obscure the sensors – the auxili-
ary lights could be perceived as an obstacle.
Related information
•
Park Assist* (p. 381) Activating/deactivating Park Assist
The Park Assist Pilot function can be activated/
deactivated.
On/OffPark Assist's front and side sensors are automat-
ically activated when the engine is started. The
rear sensors are activated if the vehicle is moving
backward or reverse gear is engaged.
The function can be activated/
deactivated in the center dis-
play's Function view. –
Tap the
Park Assist button in Function view.
>
The Park Assist Pilot indicator light shows
the status of the function: GREEN (on) or
GRAY (off).
In vehicles equipped with Park Assist Camera,
Park Assist can also be activated/deactivated
from the relevant camera view.
Related information
• Park Assist* (p. 381) Park Assist limitations
Park Assist may not be able to detect all condi-
tions in all situations and functionality may there-
fore be limited in certain cases.
The driver should be aware of the following limi-
tations for Park Assist:
WARNING Be extra cautious when
reversing if this symbol is
shown when a trailer, bike
carrier or similar is attached
and electrically connected
to the vehicle.
The symbol indicates that
the rear parking assist sensors are deacti-
vated and will not warn of any obstacles.

||DRIVER SUPPORT
* Option/accessory.
384
CAUTION Objects such as chains, thin and glossy poles
or low obstacles may end up in the "signal
shadow" and then go temporarily undetected
by the sensors – the pulsating tone may then
unexpectedly stop instead of becoming a
constant tone as expected.
The sensors cannot detect high objects, such
as protruding ramps.
• In such situations, pay extra attention and
maneuver/drive the vehicle very slowly or
stop the current parking maneuver –
there may be a high risk of damage to
the vehicle or other objects since infor-
mation from the sensors is not always
reliable in such situations.
CAUTION In some circumstances, the Park Assist Sys-
tem may produce false warnings due to exter-
nal sound sources with the same ultrasonic
frequencies as those the system works with.
Examples of such sources are horns, wet tires
on asphalt, pneumatic brakes, exhaust noise
from motorcycles, etc.
NOTE When a trailer hitch is configured with the
vehicle electrical system, the trailer hitch pro-
trusion is included when the function meas-
ures the distance to objects behind the vehi-
cle.
Related information
•
Park Assist* (p. 381) Recommended maintenance for
Park Assist
For Park Assist to function optimally, its sensors
must be cleaned regularly with water and car
washing detergent. Location of the Park Assist sensors
115
.
NOTE Dirt, ice and snow covering the sensors could
cause false warnings, reduced function, or no
function.
Related information
•
Park Assist* (p. 381) 115
Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
* Option/accessory.385
Park Assist symbols and messages
Symbols and messages for the Park Assist may
be displayed in the instrument panel and/or the
center display. Some examples of symbols and messages are shown in the table below. Symbol
Message Meaning The rear Park Assist sensors are turned off and no acoustic warnings for obstacles/objects will
be provided.
Park Assist System
Sensors blocked, cleaning nee-
ded One or more of the sensors are blocked. Check and clean/remove the obsta\
cle as soon as pos-
sible.
Park Assist System
Unavailable Service required The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop
is recommended. A text message can be erased by briefly pressing
the
button in the center of the right-side
steering wheel keypad.
If the message persists: Contact a workshop ‒ an
authorized Volvo workshop is recommended.
Related information
• Park Assist* (p. 381)