wheel VOLVO XC90 TWIN ENGINE 2018 Owners Manual

||DRIVER SUPPORT
* Option/accessory.
362 •
signs partially or fully covered by frost, snow
and/or dirt
• digital road maps 105
that are outdated, incor-
rect or do not contain speed information 106
.
NOTE Certain types of bike carriers that are con-
nected to the trailer socket may be interpre-
ted as a connected trailer by the RSI function.
In such cases, the instrument panel may indi-
cate incorrect speed information.
NOTE
The function uses the vehicle's camera unit,
which has some general limitations – see the
section "Camera unit limitations".
Related information
•
Road Sign Information* (p. 357) Driver Alert Control
The Driver Alert Control (DAC) function is
designed to help capture the driver become
aware of erratic behavior, e.g. if the driver is dis-
tracted or showing signs of fatigue.
The objective of DAC is to detect slowly deterio-
rating driving behavior and is primarily intended to
be used on major roads. The function is not
intended for use in city traffic.
DAC is activated when the vehicle's speed
exceeds 65 km/h (40 mph) and remains active
as long as speeds are above 60 km/h (37 mph). A camera monitors the traffic lane's marker lines
and compares the direction of the road with the
driver's movements of the steering wheel. If the driving behavior becomes
noticeably erratic, the driver will
be alerted by this symbol in the
instrument panel and the mes-
sage
Time for a break
soon?.
If driving behavior does not improve but instead
becomes even more erratic, the driver will be
alerted by the same symbol in the instrument
panel, an audible signal and the message Time
for a break. If the Rest Stop Guidance function is activated
in Sensus Navigation* when the Time for a
break warning is given, suggestions will also be provided for suitable places to take a break. 105
Vehicles equipped with Sensus Navigation.
106 Map data and speed information is not available for all areas.

DRIVER SUPPORT
364Selecting guidance to a rest area if
the Driver Alert Control warning has
been given
The Rest Stop Guidance function can be
switched on or off. When the guide is activated, it will automatically
display suggestions for a suitable place to take a
break if the DAC warning is given.
To select Rest Stop Guidance:
1. Tap Settings in the center display's Top
view.
2.

Select My Car IntelliSafe Driver Alert
Control .
3. Select/deselect Rest Stop Guidance to
activate/deactivate the function.
Related information
• Driver Alert Control (p. 362) Driver Alert Control limitations
Driver Alert Control (DAC) functionality may be
reduced in certain situations.
In certain situations, the system may provide a
warning even if it has not detected a change in
driving behavior, e.g.:
• in strong crosswinds
• on grooved road surfaces.
WARNING In certain cases, driving behavior might not be
affected despite the driver's fatigue – when
using the Pilot Assist function – resulting in
the driver not getting a warning from DAC.
It is therefore very important to always stop
and take a break at the slightest sign of fati-
gue, regardless of whether the DAC function
has issued a warning or not.
NOTE
The function uses the vehicle's camera unit,
which has some general limitations – see the
section "Camera unit limitations".
Related information
•
Driver Alert Control (p. 362) Lane Keeping Aid
Lane Keeping Aid (LKA 107
) is designed to
actively steer the vehicle on freeways, highways
and other major roads to help the driver reduce
the risk of the vehicle unintentionally veering out
of the lane.
Lake Keeping Assistance steers the vehicle back
into the lane and/or alerts the driver using vibra-
tions in the steering wheel.
Lane Keeping Aid is active at speeds between
65-200 km/h (40-125 mph) on roads with
clearly visible traffic lane marker lines.
On narrow roads, the function may be unavailable
and go into standby mode. The function will
become available again when the road becomes
sufficiently wide. A camera monitors the road/traffic lane's marker lines.
107
Lane Keeping Aid

DRIVER SUPPORT
}}
365 Lane Keeping Aid steers the vehicle back into its lane.
Lane Keeping Aid alerts the driver using vibrations in the
steering wheel
108
. Depending on the settings used, Lane Keeping
Aid functions in different ways:
• With
Assist 109
activated: When the vehicle
approaches a lane marker line, LKA will
actively steer the vehicle back into the lane
using light pressure on the steering wheel.
• With
Warning 109
activated: If the vehicle is
about to move over a lane marker line, the
driver will be alerted by vibrations in the
steering wheel.
NOTE When the direction indicator is activated, the
Lane Keeping Aid does not provide any warn-
ing or intervene with steering.
WARNING •
The Lane Keeping Aid function is supple-
mentary driver support intended to help
improve driving safety – it cannot handle
all situations in all traffic, weather and
road conditions.
• The function 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. 108
The steering wheel vibrations vary. The more time the vehicle is over th\
e lane marker line, the longer the vibrations.
109 See "LKA assistance options" under "Activating/deactivating Lane Keeping\
Aid".

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366
Lane Keeping Aid does not intervene
Lane Keeping Aid does not intervene in sharp inside
curves.
In certain cases, such as when a turn signal is
used or when "straightening out" an inside curve,
Lane Keeping Aid will not provide steering assis-
tance or alerts.
Related information
• Steering assistance with Lane Keeping Aid
(p. 366)
• Lane Keeping Aid limitations (p. 367)
• Activating/deactivating Lane Keeping Aid
(p. 367)
• Selecting type of assistance for Lane Keep-
ing Aid (p. 367)
• Lane Keeping Aid symbols and messages
(p. 369) •
Lane Keeping Aid symbols in the instrument
panel (p. 371) Steering assistance with Lane
Keeping Aid
The LKA
110
steering assistance function only
functions if the driver's hands are on the steering
wheel, which the system continuously monitors. If the driver does not keep
his/her hands on the steering
wheel, the driver display shows
this symbol combined with a
message, which prompts the
driver to actively steer the car: •
Lane Keeping Aid – Apply steering
If the driver does not begin to steer the vehicle,
the symbol will be displayed again, accompanied
by an audible signal and this message:
• Lane Keeping Aid – Standby until
steering applied
If the driver still does not begin to steer the vehi-
cle, LKA 110
will go into standby mode. The func-
tion will remain unavailable until the driver begins
actively steering the vehicle again.
Related information
• Lane Keeping Aid (p. 364) 110
Lane Keeping Aid

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368
Related information
•
Lane Keeping Aid (p. 364)
• Speed-dependent steering wheel resistance
(p. 272)

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

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370
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
• Lane Keeping Aid (p. 364)

DRIVER SUPPORT
}}
375
NOTE The function uses the vehicle's radar unit,
which has some general limitations – see the
section "Radar unit limitations".
Related information
•
Steering assistance at risk of collision
(p. 372)
• Speed-dependent steering wheel resistance
(p. 272) Steering assistance during collision
risks from oncoming traffic
This sub-function can help assist a distracted
driver who has not noticed that the vehicle is
veering into oncoming traffic. The function provides assistance by swerving your vehi-
cle back into your own lane.
Oncoming vehicles
Own vehicle
The function is active at speeds between
60-140 km/h (37-87 mph) on roads with clearly
visible traffic lane markings/lines.
If your vehicle is starting to veer from your own
lane and a vehicle is approaching from the oppo-
site direction, this function can help the driver
steer the vehicle back into its own lane. However, the function will not provide steering
assistance if the turn signal is used. The function
will also not be activated if it detects that the
driver is actively operating the vehicle.
After the system has automatically intervened,
this text message will appear in the instrument
panel:
• Collision avoidance assistance –
Automatic intervention
WARNING •
The "Steering assistance at risk of head-
on collision" subfunction is supplemen-
tary driver support intended to improve
driving safety – it cannot handle all situa-
tions in all traffic, weather and road condi-
tions.
• Pilot Assist is only activated if there is a
high risk of collision – you must therefore
never wait for the function to intervene.
• The function 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.

DRIVER SUPPORT
}}
* Option/accessory. 377
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".
Related information
•
Steering assistance at risk of collision
(p. 372)
• Speed-dependent steering wheel resistance
(p. 272) Steering assistance during collision
risks from behind*
If you become distracted and do not notice your
vehicle starting to veer out of the lane while
another vehicle is approaching from behind or is
in your vehicle's blind spot, this sub-function can
help provide assistance. The function provides assistance by steering your vehi-
cle back into your own lane.
Another vehicle in blind spot zone
Own vehicle
If your vehicle is beginning to veer out of your
lane while another vehicle is in your blind spot or
another vehicle is rapidly approaching in the next
lane, this function can help the driver steer the
vehicle back into its own lane.
Even if the driver intentionally changes lanes
using a turn signal without noticing another vehi- cle approaching, the function can provide assis-
tance.
The function is active at speeds between
60-140 km/h (37-87 mph) on roads with clearly
visible traffic lane markings/lines.
After the system has automatically intervened,
this text message will appear in the instrument
panel:
• Collision avoidance assistance –
Automatic interventionWARNING •
The "Steering assistance at risk of rear-
end collision" subfunction is supplemen-
tary driver support intended to improve
driving safety – it cannot handle all situa-
tions in all traffic, weather and road condi-
tions.
• Pilot Assist is only activated if there is a
high risk of collision – you must therefore
never wait for the function to intervene.
• The function 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.

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)