light VOLVO XC90 TWIN ENGINE 2018 Owners Manual

DRIVER SUPPORT
288Managing Cruise Control speed
Cruise Control (CC 29
) can be set to various
speeds.
Setting/changing set speed Note: This illustration is general and details may vary
depending on model.
For vehicles with only CC
–
Change a set speed by pressing the (1)
or (3) buttons briefly or by pressing and
holding them:
• Press briefly: Press briefly: each press
changes the speed in +/- 1 mph
(+/- 1 km/h) increments.
• Press and hold: Release the button when
the set speed indicator (4) has moved to
the desired speed. •
The most recently set speed will be stored.
If speed is increased by depressing the accelera-
tor pedal while pressing the (1) button on
the steering wheel, the vehicle's speed when the
button is pressed will be stored as the set speed.
Temporarily increasing speed using the accelera-
tor pedal, e.g. when passing another vehicle, will
not affect the setting. The vehicle will return to
the set speed when the accelerator pedal is
released.
For vehicles with both CC and ACC
– Change a set speed by pressing the (1)
or (3) buttons briefly or by pressing and
holding them:
• Press briefly: Press briefly: each press
changes the speed in +/- 5 mph
(+/- 5 km/h) increments.
• Press and hold: Release the button when
the set speed indicator (4) has moved to
the desired speed.
• The most recently set speed will be stored.
If speed is increased by depressing the accelera-
tor pedal while pressing the (1) button on
the steering wheel, the vehicle's speed when the
button is pressed will be stored as the set speed.
Temporarily increasing speed using the accelera-
tor pedal, e.g. when passing another vehicle, will not affect the setting. The vehicle will return to
the set speed when the accelerator pedal is
released.
Using engine braking instead of
applying the brakes
Cruise Control regulates speed by lightly applying
the brakes. On downgrades, it can sometimes be
desirable to roll a bit faster and let speed be
reduced instead by engine braking alone. The
driver can temporarily disengage the Cruise Con-
trol braking function.
To disengage CC:
– Press the accelerator pedal about halfway
down and then release it.
>

Cruise Control will automatically disen-
gage the automatic brake function and
speed will only be reduced using the
engine braking function.
How drive mode affects cruise controlThe way the cruise control maintains the vehicle's
speed can vary depending on the selected drive
mode 30
. 29
Cruise Control
30 For more information, see "Drive modes".

DRIVER SUPPORT
289
Cruise Control Eco Cruise
In the ECO drive mode, cruise control's accelera-
tion and deceleration will be smoother than in
other drive modes to help provide optimal fuel
efficiency and reduced environmental impact.
Because of this, the vehicle's actual speed may
be slightly above or below the set speed.
Cruise Control Dynamic Cruise
With the Dynamic drive mode, cruise control's
acceleration and deceleration will be faster and
more immediate than in other drive modes.
Related information
•Cruise control (p. 286) Deactivating and putting Cruise
Control in standby mode
Cruise Control (CC 31
) can be temporarily put
into standby mode and then reactivated.
Deactivating and putting Cruise Control
in standby mode Note: This illustration is general and details may vary
depending on model.
To put Cruise Control in standby mode:
–
Press the button on the steering wheel
(2).
>

The Cruise Control markings and symbols
will change from WHITE to GRAY, indicat-
ing that Cruise Control is temporarily
deactivated and the driver needs to con-
trol the vehicle's speed.
Standby mode due to action by the driver
Cruise Control will be temporarily deactivated and
put in standby mode if:
• the brakes are applied
• the gear selector is moved to N
• the vehicle is driven faster than the set
speed for more than 1 minute
The driver must then control the vehicle's speed.
Temporarily increasing speed using the accelera-
tor pedal, e.g. when passing another vehicle, will
not affect the setting. The vehicle will return to
the set speed when the accelerator pedal is
released.
Automatic standby mode
Cruise Control will be temporarily deactivated and
put in standby mode if:
• the wheels lose traction
• the engine speed (rpm) is too low/high
• the temperature in the brake system
becomes too high
• the vehicle's speed goes below 30 km/h
(20 mph).
The driver must then control the vehicle's speed.
Related information
• Cruise control (p. 286) 31
Cruise Control

||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.

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
* Option/accessory.
298 •
Managing Adaptive Cruise Control speed
(p. 300)
• Setting Adaptive Cruise Control time inter-
vals (p. 301)
• Deactivating/reactivating Adaptive Cruise
Control (p. 302)
• Passing assistance with Adaptive Cruise
Control (p. 304)
• Starting passing assistance with Adaptive
Cruise Control (p. 304)
• Limitations of passing assistance with Adap-
tive Cruise Control (p. 305)
• Switching target vehicles with Adaptive
Cruise Control (p. 305)
• Automatic braking with Adaptive Cruise Con-
trol (p. 306)
• Adaptive Cruise Control limitations (p. 307)
• Switching between Cruise Control and Adap-
tive Cruise Control (p. 307)
• Symbols and messages for Adaptive Cruise
Control (p. 309) Adaptive Cruise Control and
collision warning Collision warning light on the windshield
43
.
Adaptive Cruise Control utilizes approx. 40% of
the vehicle's braking capacity. If a situation
requires more braking force than the Adaptive
Cruise Control can provide, and if the driver does
not apply the brakes, a warning light and audible
warning signal will be activated to alert the driver
that immediate action is required.
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.
WARNING Adaptive Cruise Control only issues a warning
for vehicles detected by its radar unit – thus, a
warning may come after a delay or not at all.
• Never wait for a warning. Apply the
brakes when necessary.
Related information
•
Adaptive Cruise Control* (p. 295) 43
Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
}}
* Option/accessory. 299
Head-up display for Adaptive Cruise
Control with collision warning
In vehicles equipped with a head-up display*, a
flashing warning symbol will be displayed on the
windshield. Collision warning symbol on the windshield
44
.
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.
Related information
•
Adaptive Cruise Control* (p. 295) Activating and starting Adaptive
Cruise Control
Adaptive Cruise Control (ACC
45
) must first be
activated and then started before it can regulate
speed and distance.
Putting Adaptive Cruise Control in
standby mode Note: This illustration is general and details may vary
depending on model.
Adaptive Cruise Control is in standby mode each
time the engine is started. To put ACC in standby
mode from active mode:
–
Press ◀ (2) or ▶ (3) on the steering wheel
keypad and scroll to the (4) function.
>

The symbol will appear and Adaptive
Cruise Control will go into standby mode.
Starting/activating Adaptive Cruise
Control
To start ACC:
• The driver's seat belt must be buckled and
the driver's door must be closed.
• There must be a vehicle ahead (target vehi-
cle) within a reasonable distance or your
vehicle's current speed must be at least
15 km/h (9 mph). Note: This illustration is general and details may vary
depending on model.
44
Note: This illustration is general and details may vary depending on mod\
el.
45 Adaptive Cruise Control

DRIVER SUPPORT
}}
* Option/accessory. 301
Automatic transmission
Adaptive Cruise Control can follow another vehi-
cle at speeds from a standstill up to 200 km/h
(125 mph).
The lowest speed that can be set for Adaptive
Cruise Control is 30 km/h (20 mph). When fol-
lowing another vehicle, ACC can monitor that
vehicle's speed and slow your own vehicle down
to a standstill, but it is not possible to set speeds
lower than 30 km/h (20 mph).
The highest possible speed that can be set is
200 km/h (125 mph).
Related information
•Adaptive Cruise Control* (p. 295) Setting Adaptive Cruise Control
time intervals
Adaptive Cruise Control (ACC
47
) can be set to
various time intervals to the vehicle ahead.
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 Distance
Alert function is activated.
NOTE When the symbol in the instrument panel
shows two vehicles, ACC is following the vehi-
cle ahead at a preset time interval.
When only one vehicle is shown, there is no
vehicle ahead within a reasonable distance. Controls for setting a time interval
48
. 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.
In order to help your vehicle follow the vehicle
ahead as smoothly and comfortably as possible,
Adaptive Cruise Control allows the time interval
to vary noticeably in certain situations. At low
speeds, when the distance to the vehicle ahead
is short, Adaptive Cruise Control increases the
time interval slightly. 47
Adaptive Cruise Control
48 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
* Option/accessory.
306 Automatic braking with Adaptive
Cruise Control
The Adaptive cruise control (ACC
55
) has a spe-
cial brake function in slow traffic and while sta-
tionary.
Braking function in slow traffic and at a
standstill
In slow-moving, stop-and-go traffic or when stop-
ped at a traffic light, driving will resume automati-
cally if the vehicle is stopped for less than
approx. 3 seconds. If it takes more than 3 sec-
onds for the vehicle ahead to begin moving again,
Adaptive Cruise Control will go into standby
mode and the Auto-hold brake function will acti-
vate.
– Adaptive Cruise Control can be reactivated in
one of the following ways:
• Pressing the button on the steering
wheel keypad.
• Pressing the accelerator pedal.
>

Adaptive Cruise Control will resume fol-
lowing the vehicle ahead if it begins to
move within approx. 6 seconds.
NOTE ACC can keep the vehicle stationary for no
more than 5 minutes – after that time the
parking brake is applied and Adaptive Cruise
Control is deactivated.
The parking brake must be released before
Adaptive Cruise Control can be reactivated.
Deactivation of the Auto-hold brake function
In certain situations, Auto-hold will be deactivated
when the vehicle is at a standstill and Adaptive
Cruise Control will go into standby mode. This
means that the brakes will be released and the
vehicle could begin to roll. The driver must
actively apply the brakes to keep the vehicle sta-
tionary.
This can occur if:
• the driver depresses the brake pedal
• the parking brake is applied
• the gear selector is moved to the
P
, N
or R
positions
• the driver puts Adaptive Cruise Control in
standby mode.
Auto Activate Parking BrakeIn certain situations, the parking brake will be
applied to keep the vehicle at a standstill. This occurs if Adaptive Cruise Control is keeping
the vehicle stationary using the brakes and:
• the driver opens the door or unbuckles
his/her seat belt
• ACC has kept the vehicle at a standstill for
more than approx. 5 minutes
• the brakes overheat
• the driver switches off the engine manually.
Related information
•
Adaptive Cruise Control* (p. 295) 55
Adaptive Cruise Control