2017 VOLVO XC90 Owner´s Manual

DRIVER SUPPORT
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* Option/accessory.255
Roll stability control (RSC)
Volvo's Roll Stability Control (RSC) is a stability system designed to help minimize the risk of arollover in emergency maneuvers or if a skidshould occur.
RSC registers the amount of change in the lat- eral angle at which the vehicle is leaning. Usingthis information, RSC calculates the likelihood ofa rollover. If there is an imminent risk of a rollover,the stability system is activated, power to theengine is cut and the brakes are applied to oneor more of the wheels until the vehicle regainsstability.
WARNING
The vehicle

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DRIVER SUPPORT
* Option/accessory.
256
Related information
• Starting and activating the Speed Limiter (SL)
* (p. 256)
• Deactivating/reactivating the Speed Limiter
*
(p. 260)
• Changing a Speed Limiter (SL)
* maximum
speed (p. 257)
• Automatic Speed Limiter (ASL)
* (p. 257)
• Activating/deactivating the Automatic SpeedLimiter (ASL)
* (p. 259)
• Changing tolerance for the Automatic Speed Limiter (p. 259)
• Turning the Speed Limiter
* off (p. 261)
Starting and activating the Speed Limiter (SL) *
The Speed Limiter (SL) is a feature that has to be selected and activated in order to set a maxi-mum speed.
Selecting SL (putting it in standby mode)
Function buttons and symbols
–Press ◀ (1) or ▶ (3) to scroll to the Speed
Limiter (
) function.
> The symbol (4) will be displayed in the instrument panel. This indicates that SL has been selected and is in standby
mode (no maximum speed has been set).
Activating SL (putting it in active mode and setting a maximum speed)
The engine must be running before SL can be put in active mode. The lowest maximum speedthat can be set is 20 mph (30 km/h).
–With SL in standby mode (the will
be displayed), press the
button (2).
> This puts SL in active mode and sets the vehicle's current speed as the maximum speed.
Related information
• Speed limiter (SL)
* (p. 255)
• Deactivating/reactivating the Speed Limiter
*
(p. 260)
• Changing a Speed Limiter (SL)
* maximum
speed (p. 257)
• Automatic Speed Limiter (ASL)
* (p. 257)
• Activating/deactivating the Automatic Speed Limiter (ASL)
* (p. 259)
• Changing tolerance for the Automatic Speed Limiter (p. 259)
• Turning the Speed Limiter
* off (p. 261)

DRIVER SUPPORT
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* Option/accessory.257
Changing a Speed Limiter (SL) *
maximum speed
Function buttons and symbols
–Change a set maximum speed by pressing the
(1) or — (3) buttons briefly or by
pressing and holding them: • Press briefly
: changes the maximum
speed in +/– 5 mph (+/– 5 km/h) incre- ments. Each press changes the maximumspeed by +/– 5 mph (+/– 5 km/h).
• Press and hold
: changes the maximum
speed +/– 1 mph (+/– 1 km/h) at a time.Release the button when the indicator (4)has moved to the desired maximumspeed.
LimitationsWhen driving down steep hills, the SpeedLimiter's braking effect may not be adequate andthe set maximum speed may be exceeded. The message
Speed limit exceeded will appear in
the instrument panel to alert the driver.
NOTE
This message will appear if the maximum speed is exceeded by more than approx.2 mph (3 km/h).
Related information
• Speed limiter (SL)
* (p. 255)
Automatic Speed Limiter (ASL) *
Automatic Speed Limiter (ASL) helps the driver adapt the vehicle's maximum speed to the pos-ted speed limits.
The Speed Limiter (SL) function can be switched to Automatic Speed Limiter.
Where applicable, ASL uses speed information from the Road Sign Information * system to auto-
matically adapt the vehicle's maximum speed.
WARNING
• ASL is a supplemental aid to the driver and does not function in all driving situa-tions or in all traffic, weather or road con-ditions. It can never replace the driver

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Is SL or ASL active?Symbols in the instrument panel indicate which function is active:
Symbol SLASL
A✓ ✓
Sign symbol B
next to "70": ASL is acti-
vated.
✓
AWHITE symbol: the function is active, GRAY symbol: the func- tion is in standby mode.
B See the section "ASL symbol" below for an explanation of thesymbol's different colors.
The ASL symbol
A road sign symbol (next to the stored speed in the center of the speedome-ter) can be displayed in three differentcolors as explained in the following
table:
Road sign
symbol's color Explanation
Green/yellow ASL is active Gray ASL is in standby mode
Amber/orange ASL is temporarily in standby mode (e.g., because a speed limit sign could not be read)
ASL limitations
•ASL utilizes the speed limit information provi- ded by the Road Sign Information
* system
(RSI), not from the speed limit signs that the
vehicle passes.
• If RSI cannot provide ASL with speed-related information, ASL will go into standby modeand switch to SL. The driver will have to reactand adapt the vehicle's speed.
• ASL will reactivate when RSI is once againable to read a speed limit sign.
See also the article "Road Sign Information limi-tations".
Related information
• Speed limiter (SL)
* (p. 255)
• Activating/deactivating the Automatic Speed Limiter (ASL)
* (p. 259)
• Changing tolerance for the Automatic Speed Limiter (p. 259) •
Starting and activating the Speed Limiter (SL)
* (p. 256)
• Deactivating/reactivating the Speed Limiter
*
(p. 260)
• Road Sign Information (RSI)
* (p. 324)
• Road Sign Information (RSI)
* limitations
(p. 326)

DRIVER SUPPORT
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* Option/accessory.259
Activating/deactivating the Automatic Speed Limiter (ASL) *
The function Automatic Speed Limiter (ASL) is a
supplement to the Speed Limiter (SL) and can be activated/deactivated.
ASL is activated/deactivated in the center display's Functionview.
Activating ASL
With SL activated: 1.
Tap the
Speed Sign Assist button in the
center display's Function view.
> ASL will go into standby mode and a green indicator light in the button will illu- minate. A road sign symbol will be dis-played in center of the speedometer.
2. Press the
button on the left-side steer-
ing wheel keypad.
> ASL will be activated with the vehicle's current speed.
Deactivating ASL
–Tap the Speed Sign Assist button in the
center display's Function view.
> ASL will be deactivated, the indicator will be GRAY and the Speed limiter (SL) will be activated.
WARNING
After switching from ASL to SL, the vehicle will no longer adapt speed to posted speedlimits. It will only limit the vehicle's maximumspeed.
Related information
• Speed limiter (SL)
* (p. 255)
• Automatic Speed Limiter (ASL)
* (p. 257)
Changing tolerance for the Automatic Speed Limiter
Automatic Speed Limiter can be set to different tolerance levels.
Posted speed limit toleranceASL can be set to allow the vehicle to drive above or below the posted speed limit. For exam-ple, if the current posted speed limit is 43 mph(70 km/h), the driver can opt to allow the vehicleto drive at a speed of 47 mph (75 km/h).

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DRIVER SUPPORT
* Option/accessory.
260
Function buttons and symbols (generic illustration)
–Press the button (1) until 43 mph
(70 km/h) has changed to 47 mph (75 km/h) in the center of the speedometer (4).
> The vehicle will then use the selected tol-
erance +4 mph (+5 km/h) until the vehi- cle passes a sign with a lower or higherspeed limit. The vehicle will then adjust tothe new maximum speed and the set tol-erance will be deleted from the system'smemory. If the Road Sign Information * system is
activated, the posted speed limit will be indicated by a RED marker on the spee-dometer's speed scale. The set tolerance can be adjusted in the same way as the Speed Limiter's setmaximum speed.
NOTE
The greatest tolerance that can be set is +/– 5 mph (10 km/h).
Related information
• Automatic Speed Limiter (ASL)
* (p. 257)
• Activating/deactivating the Automatic Speed Limiter (ASL)
* (p. 259)
• Road Sign Information (RSI)
* (p. 324)
• Changing a Speed Limiter (SL)
* maximum
speed (p. 257)
Deactivating/reactivating the Speed Limiter *
The Speed Limiter (SL) can be temporarily deac- tivated and put in standby mode.
Deactivating and putting SL in standby
mode
To temporarily put the Speed Limiter in standby mode:
Function buttons and symbols
–Press the button (2).
> The symbols in the instrument panel will change colors from WHITE to GRAY. This indicates that SL is temporarily in standby mode and will not limit the vehi-cle's maximum speed.

DRIVER SUPPORT
* Option/accessory.261
Reactivating SL from standby modeTo reactivate SL after it has temporarily been put in standby mode:
–Press the button (1).
> The maximum speed marker (4) and sym- bols will change colors to WHITE and the vehicle's maximum speed will be limited tothe previously set maximum speed.
or
–Press the button (2).
> The symbols will change colors from GRAY to WHITE and the vehicle's current speed will be set as the maximum speed.
Increasing the speed with the accelerator pedal
The set maximum speed can be temporarily exceeded using the accelerator pedal withoutputting SL in standby mode, for instance whenquick acceleration is required.
1. Press the accelerator pedal as far down as possible and release it when the vehicle has reached the desired speed.
> SL remains activated (the symbols in theinstrument panel will remain WHITE).
2. Release the accelerator pedal when the tem- porary acceleration is completed.
> The vehicle will slow down and its speedwill remain under the set maximum speed.
Related information
• Speed limiter (SL)
* (p. 255)
• Starting and activating the Speed Limiter (SL)
* (p. 256)
Turning the Speed Limiter * off
The Speed Limiter (SL) can be turned off.
Function buttons and symbols
1. Press the button (2).
> SL will go into standby mode.
2. Press the ◀ (1) or ▶ (3) buttons to select
another function.
> The SL symbol (4) in the instrument panel will go out and the set maximum speed will be erased from the system's memory.
3. Press the
button (2) again.
> The newly selected function will be acti- vated.
Related information
• Speed limiter (SL)
* (p. 255)
• Starting and activating the Speed Limiter (SL)
* (p. 256)

DRIVER SUPPORT
* Option/accessory.
262
Cruise Control (CC)
Cruise Control (CC) is designed to assist the driver by maintaining a set speed. It is primarilyintended for use on long straight roads in steadytraffic, such as on highways and other mainroads in smoothly flowing traffic.
Overview
Function buttons and symbols (generic illustration)
Increases the set speed or CC switches
from standby mode to active mode
The set speed will be resumed
Press to put CC in active mode and set
the current speed or from active mode, press to put CC in standby mode
— Decreases the set speed
Set speed indicator
The vehicle's current speed
The set speed
In models equipped with the optional Adaptive Cruise Control (ACC), the driver can togglebetween CC and ACC – see the article "Switch-ing between Cruise Control and Adaptive CruiseControl".
WARNING
• The vehicle must always be driven according to current traffic/road condi-tions. The driver must take action if CCdoes not maintain a suitable speedand/or distance to other vehicles.
• The driver is always responsible for oper-ating the vehicle in a safe manner.
Related information
•Starting and activating Cruise Control(p. 262)
• Changing Cruise Control speed (p. 263)
• Deactivating/resuming Cruise Control (CC)(p. 264)
• Turning Cruise Control off (p. 265)
• Adaptive Cruise Control (ACC)
* (p. 269)
• Switching between Cruise Control and Adaptive Cruise Control
* (p. 266)
Starting and activating Cruise Control
Cruise Control (CC) must be selected and acti- vated before it can regulate the vehicle's speed.
Selecting CC (putting it in standby
mode)
Function buttons and symbols
–Press ◀ (1) or ▶ (3) to scroll to the CC
(
) function.
> The symbol (4) will be displayed in the instrument panel. This indicates that CC has been selected and can then be acti-vated to maintain a set speed.