2018 VOLVO XC90 TWIN ENGINE engine

DRIVER SUPPORT
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279
Activating and starting Speed
Limiter
The Speed Limiter (SL 13
) function must be
selected and activated in order to regulate
speed.
Putting Speed Limiter in standby mode Note: This illustration is general and details may vary
depending on model.
–
Press ◀ (1) or ▶ (3) and scroll to the Speed
Limiter function (4).
>

The symbol (4) will appear, indicating that
the Speed Limiter is in standby mode.
Starting the Speed LimiterThe Speed Limiter can only be activated while
the engine is running. The lowest maximum
speed that can be set is 30 km/h (20 mph). –
With the Speed Limiter in standby mode and
the symbol displayed, press the
button (2) on the steering wheel key-
pad.
>

The Speed Limiter will be started and the
vehicle's current speed will be set as the
maximum speed.
Related information
• Speed limiter (p. 278) Managing Speed Limiter speed
The Speed Limiter (SL
14
) can be set to various
speeds.
Setting/changing set speed Note: This illustration is general and details may vary
depending on model.
–
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. 13
Speed Limiter

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. 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. 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
}}
303
To temporarily deactivate Adaptive Cruise Control
and put it in standby mode:
– Press the button on the steering wheel
(2).
> The symbol in the instrument panel
changes color from WHITE to GRAY and
the set speed in the center of the speed-
ometer will change from BEIGE to GRAY.
WARNING •
If Adaptive Cruise Control is in standby
mode, the driver must intervene and regu-
late both speed and distance to the vehicle
ahead.
• If the vehicle comes too close to a vehicle
ahead when Adaptive Cruise Control is in
standby mode, the driver is instead warned
of the short distance by the Distance Alert
function.
Standby mode due to action by the driver
Adaptive Cruise Control will be temporarily deac-
tivated 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 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
Adaptive Cruise Control is dependent on other
systems, such as Electronic Stability Control
(ESC 50
). If any of these other systems stops
working, Adaptive Cruise Control will automati-
cally switch off.
WARNING With automatic standby mode, the driver is
warned by an acoustic signal and a message
on the instrument panel.
•
The driver must then regulate vehicle
speed, apply the brakes if necessary, and
maintain a safe distance to other vehicles.
Adaptive Cruise Control may go into standby
mode if: • your vehicle's speed goes below 5 km/h
(3 mph) and ACC cannot determine if the
vehicle ahead is stationary or if it is another
object, e.g. a speed bump.
• your vehicle's speed goes under 5 km/h
(3 mph) and the vehicle ahead turns so that
ACC no longer has a vehicle to follow. •
the driver opens the door.
• the driver unbuckles the seat belt.
• the engine speed (rpm) is too low/high.
• one or more of the wheels lose traction.
• the brake temperature is high.
• the parking brake is applied.
• the camera/radar sensor is covered by snow
or heavy rain (the camera lens/radar waves
are blocked)
Reactivating Adaptive Cruise Control
from standby mode Note: This illustration is general and details may vary
depending on model.
50
Electronic Stability Control

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

||DRIVER SUPPORT
* Option/accessory.
308 2.
Tap the Cruise Control button in the center
display's Function view. The button's indica-
tor will change from GRAY to GREEN.
>

The symbol in the instrument panel will
change from ACC to
CC, indicating that Adaptive Cruise Con-
trol is off and Cruise Control is in standby
mode.
3. Pressing the button on the steering
wheel keypad.
>

Cruise Control will start and the vehicle's
current speed will be set.
WARNING Switching from ACC to CC means that the
vehicle:
• will no longer maintain a preset time
interval to the vehicle ahead.
• will only follow the stored speed and the
driver must therefore apply the brakes
when necessary.
If CC is active when the engine is turned off, ACC
will be automatically activated the next time the
engine is started.
Switching from CC to ACCTo do so:
1. Press the button on the steering wheel
keypad to put Cruise Control in standby
mode.
2. Tap the Cruise Control button in Function
view. The button's indicator will change from
GREEN to GRAY.
>

The symbols in the instrument panel will
switch from CC to ACC
to indicate that Adaptive Cruise Control is
in standby mode.
3. Pressing the button on the steering
wheel keypad.
>

Adaptive Cruise Control will go into active
mode and set the vehicle's current speed
and the selected time interval to the vehi-
cle ahead.
Related information
• Adaptive Cruise Control* (p. 295) 57
Adaptive Cruise Control
58 Cruise Control