2018 VOLVO XC90 TWIN ENGINE cruise control

DRIVER SUPPORT
290Reactivating Cruise Control from
standby mode
Cruise Control (CC 32
) can be temporarily put
into standby mode and then reactivated.
Reactivating Cruise Control from
standby mode Note: This illustration is general and details may vary
depending on model.
To start Cruise Control from standby mode:
–
Press the button on the steering wheel
(1).
>

The Cruise Control marking in the instru-
ment panel will change from GRAY to
WHITE and the vehicle will then return to
the most recently set speed.
or To start Cruise Control from standby mode:
– Press the button on the steering wheel
(2).
>

The Cruise Control markings and symbols
in the instrument panel will change from
GRAY to WHITE and the vehicle's current
speed will be set.
WARNING A noticeable increase in speed may follow
when the speed is resumed with the
steering wheel button.
Related information
•
Cruise control (p. 286) Switching off Cruise Control
Cruise control (Cruise Control - CC) can be
turned off. 32
Cruise Control

DRIVER SUPPORT
}}
* Option/accessory. 291Function buttons and symbols
33
.
To turn off Cruise Control:
1. Press the button on the steering wheel
(2).
>

Cruise Control will go into standby mode.
2. Press the ◀ (1) or ▶ (3) buttons on the
steering wheel to select another function.
>
The Cruise Control symbol (4) in
the instrument panel will go out and the
set speed will be erased.
3. Press the (2) button on the steering
wheel keypad again.
>

Another function will be activated.
NOTE In vehicles equipped with Adaptive Cruise
Control*, it is possible to switch between
cruise control and Adaptive Cruise Control –
see the heading "Switching between CC and
ACC".
Related information
• Cruise control (p. 286) Distance Alert*
The Distance Alert 34
function can help the driver
become aware if the time interval to the vehicle
in front is too short.
However, the vehicle must be equipped with a
head-up display in order to display the Distance
Alert, which will then be indicated by a symbol
on the windshield as long as the time interval to
the vehicle ahead is shorter than the set time
interval.
Distance Alert is active at speeds above 30 km/h
(20 mph) and only reacts for vehicles ahead mov-
ing in the same direction as your vehicle. No dis-
tance information is provided for oncoming, slow-
moving or stationary vehicles. 33
Note: This illustration is general and details may vary depending on mod\
el.
34 Distance Alert

||DRIVER SUPPORT
* Option/accessory.
292 Distance Alert warning light on the windshield
35
.
A warning light will appear on the windshield and
glow steadily if the time interval to the vehicle
ahead is shorter than the set time interval.
NOTE Visual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.
NOTE •
Distance Alert is only available in vehicles
that can display information on the wind-
shield with a head-up display.
• Distance Alert is deactivated while Adap-
tive Cruise Control is active.
WARNING Distance Alert only reacts of the time interval
to the vehicle ahead is shorter than the preset
value – vehicle speed is not affected.
NOTE
Depending on market, this function may be
either Standard or Optional.
Related information
•
Head-up display for Distance Alert (p. 292)
• Activating/deactivating Distance Alert
(p. 293)
• Setting a time interval for Distance Alert
(p. 293)
• Distance Alert limitations (p. 294) Head-up display for Distance Alert
36
In vehicles equipped with a head-up display*, a
symbol will be displayed on the windshield as
long as the time interval to the vehicle ahead is
shorter than the set time interval. Distance Alert warning symbol on the windshield
37
.
For this to be possible, however, the
Show
Driver Support function must be activated
under Settings in the center display's menus (see
"Head-up display" for instructions). 35
Note: This illustration is general and details may vary depending on mod\
el.
36 The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.
37 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
}}
* Option/accessory. 293
NOTEVisual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.
Related information
•
Distance Alert* (p. 291)
• Head-up display* (p. 142) Activating/deactivating Distance
Alert
38
It is possible to set time intervals for Distance
Alert or to turn the function off.
On/OffPress the Distance Alert but-
ton in the center display's
Function view. •
GREEN button indicator light - Distance Alert
is on.
• GRAY button indicator light - Distance Alert
is off.
Distance Alert is automatically activated each
time the engine is started.
Related information
• Distance Alert* (p. 291) Setting a time interval for Distance
Alert
39
The Distance Alert function can be set to differ-
ent time intervals. Different time intervals to the
vehicle ahead can be selected
and are shown in the instru-
ment panel as 1–5 horizontal
bars. The more bars, the longer
the time interval. One bar rep-
resents an interval of
approx. 1 second to the vehicle ahead. 5 bars
represents approx. 3 seconds. The same symbol appears when the Adaptive
Cruise Control function is activated.
38
The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.
39 The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.

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* Option/accessory.
294 Controls for setting a time interval.
Reduce the time interval
Increase the time interval
Distance indicator
– Press the (1) or (2) button to decrease or
increase the time interval.
>

The distance indicator (3) shows the cur-
rent time interval.
NOTE •
The greater the vehicles' speed, the
greater the distance between them for a
set time interval.
• Only use the time intervals permitted by
local traffic regulations.
• The set time interval is also used by the
Adaptive Cruise Control and Pilot Assist
functions.
WARNING •
Only use a time interval suitable for the
current traffic conditions.
• The driver should be aware that short
time intervals give them limited time to
react and act to any unforeseen traffic
situation.
Related information
•
Distance Alert* (p. 291) Distance Alert limitations
40
Distance Alert functionality may be reduced in
certain situations. 40
The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.

DRIVER SUPPORT
}}
* Option/accessory. 295
WARNING•
The radar sensor has a limited field of
vision. In some situations, it may detect a
vehicle later than expected or not detect
other vehicles at all.
• The radar sensor cannot cover all driving
situations and traffic, weather and road
conditions.
• The driver is responsible for maintaining a
safe distance and speed and must inter-
vene if the various driver support systems
do not maintain a suitable speed or suita-
ble distance to the vehicle ahead.
• Maintenance of radar sensor components
may only be performed by a trained and
qualified Volvo technician.
• Strong sunlight, reflections from the road
surface, strong lighting contrasts or using
sunglasses may make the warning light in
the windshield difficult to see. Poor
weather or winding roads can affect the
radar sensor's capacity to detect vehicles
ahead.
• A vehicle's size (e.g., a motorcycle) can
also affect the radar sensor's capacity to
detect another vehicle. This may result in
the warning light illuminating at a shorter
distance than the one that has been set
or not illuminating at all. •
High speeds may also result in the warn-
ing light illuminating at a shorter distance
than the one that has been set due to
limitations in the radar sensor's range.
NOTE The function uses the vehicle's radar unit,
which has some general limitations – see the
section "Radar unit limitations".
Related information
•
Distance Alert* (p. 291) Adaptive Cruise Control*
Adaptive Cruise Control (ACC 41
) helps the
driver maintain a constant speed with a set time
interval to the vehicle ahead.
Adaptive Cruise Control helps provide a more
relaxed driving experience on long trips on high-
ways or long, straight roads with even traffic
flows. The camera/radar sensor measures the distance to the
vehicle ahead
42
.
The driver sets a speed and a time interval to the
vehicle ahead. If the camera/radar sensor detects
a slower-moving vehicle ahead, your vehicle's
speed will be automatically adapted according to
the set time interval to that vehicle. When there
are no longer slower-moving vehicles ahead, the
vehicle will return to the set speed.

||DRIVER SUPPORT
296
WARNING
•
The Adaptive Cruise Control function is
supplementary driver support intended to
facilitate driving and help make it safer –
it cannot handle all situations in all traffic,
weather and road conditions.
• The driver is advised to read all sections
in the Owner's Manual about this function
to learn of its limitations, which the driver
must be aware of before using the func-
tion (see the link list at the end of this
article).
• Adaptive Cruise Control is not a substi-
tute for the driver's attention and judg-
ment. 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 accordance with current traffic
rules and regulations.
NOTE Depending on market, this function may be
either Standard or Optional.
Adaptive Cruise Control regulates speed by
accelerating and braking. It is normal for the brakes to emit a slight sound when they are
being used to adjust speed.
Adaptive Cruise Control always attempts to regu-
late speed smoothly. The driver must apply the
brakes in situations requiring immediate braking.
For example, when there are great differences in
speed between vehicles or if the vehicle ahead
brakes suddenly. Due to limitations in the radar
sensor, braking may occur unexpectedly or not at
all.
Adaptive Cruise Control is designed to follow a
vehicle ahead in the same lane and maintain a
time interval to that vehicle set by the driver. If the
radar sensor does not detect a vehicle ahead, it
will instead maintain the speed set by the driver.
This will also happen if the speed of the vehicle
ahead exceeds the set speed for your vehicle.
• Adaptive Cruise Control can follow another
vehicle at speeds from a standstill up to
200 km/h (125 mph).
WARNING •
Adaptive Cruise Control is not a collision
avoidance system. The driver is always
responsible and must intervene if the sys-
tem fails to detect a vehicle ahead.
• Adaptive Cruise Control does not brake
for people or animals and does not brake
for small vehicles, such as bikes and
motorcycles. Similarly, it does not brake
for low trailers, oncoming, slow-moving or
stationary vehicles and objects.
• Do not use Adaptive Cruise Control in
demanding situations, such as in city traf-
fic, at intersections, on slippery surfaces,
with a lot of water or slush on the road, in
heavy rain/snow, in poor visibility, on
winding roads, or on on/off ramps.
CAUTION Maintenance of Adaptive Cruise Control com-
ponents may only be performed by a work-
shop – an authorized Volvo workshop is rec-
ommended.
41
Adaptive Cruise Control
42 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
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* Option/accessory. 297
Overview
ControlsFunction buttons and symbols
42
. : Activates Adaptive Cruise Control from
standby mode and resumes the set speed : Increases the set speed
: From standby mode - activates the
Adaptive Cruise Control and stores the cur-
rent speed : From active mode - deactivates/
switches the Adaptive Cruise Control to
standby mode : Reduces the set speed
Increases the time interval to the vehicle
ahead Reduces the time interval to the vehicle
ahead
Target vehicle indicator: ACC has detected
and is following a target vehicle using the set
time interval
Symbol for time interval to the vehicle ahead
NOTE
In vehicles equipped with Adaptive Cruise
Control*, it is possible to switch between
cruise control and Adaptive Cruise Control –
see the heading "Switching between CC and
ACC".
Instrument panel Speed indicators
42
. Set speed
Speed of the vehicle ahead.
The current speed of your vehicle.
See "Adaptive Cruise Control symbols and mes-
sages" for examples of different combinations of
symbols depending on the traffic situation.
Related information
• Adaptive Cruise Control and collision warning
(p. 298)
• Head-up display for Adaptive Cruise Control
with collision warning (p. 299)
• Activating and starting Adaptive Cruise Con-
trol (p. 299) 42
Note: This illustration is general and details may vary depending on mod\
el.