2018 VOLVO XC90 ESP

DRIVER SUPPORT
343
Other limitations
WARNING
•Warnings and brake interventions can be triggered late or not at all if the traffic sit-uation or external influences prevent thecamera and radar unit from properlydetecting pedestrians, cyclists, large ani-mals or vehicles ahead of the vehicle.
• To be able to detect vehicles at night, itsfront and rear lights must work and illumi-nate clearly.
• The camera and radar unit have a limitedrange for pedestrians and cyclists – thesystem can provide effective warningsand brake interventions if the relativespeed is lower than 50 km/h (30 mph).For stationary or slow-moving vehicles,warnings and brake interventions areeffective at vehicle speeds of up to70 km/h (43 mph). Speed reduction forlarge animals is less than 15 km/h(9 mph) and can be achieved at vehiclespeeds over 70 km/h (43 mph). At lowerspeeds, the warning and brake interven-tion for large animals is less effective.
• Warnings for stationary or slow-movingvehicles and large animals can be disen-gaged due to darkness or poor visibility.
• Warnings and brake interventions for pedestrians and cyclists are disengagedat vehicle speeds over 80 km/h(50 mph).
• Do not place, affix or mount anything onthe inside or outside of the windshield, orin front of or around the camera andradar unit – this could disrupt camera-based functions.
• Objects, snow, ice or dirt in the area ofthe camera sensor can reduce the func-tion, disengage it completely or give animproper function response.
NOTE
The function uses the vehicle's camera unit, which has some general limitations – see thesection "Camera unit limitations".
NOTE
The function uses the vehicle's radar unit, which has some general limitations – see thesection "Radar unit limitations".
Market limitationsCity Safety is not available in all countries. If City Safety is not shown in the center display's
Settings menu, your vehicle is not equipped with
this function. In the center display's Top view, tap:
•
SettingsMy CarIntelliSafe
Related information
• City Safety
™ (p. 333)

DRIVER SUPPORT
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347
given, the indicator light will become brighter and begin flashing.
NOTE
The light illuminates on the side of the vehicle where the system has detected the vehicle. Ifthe vehicle is passed on both sides simulta-neously, both lights come on.
WARNING
•
The BLIS function is supplementary driver support intended to facilitate driving andhelp make it safer – it cannot handle allsituations in all traffic, weather and roadconditions.
• The responsibility for changing lanessafely and using good judgment alwaysrests with the driver.
• BLIS is not a substitute for the driver'sattention and judgment. The driver isalways responsible for ensuring the vehi-cle is driven in a safe manner, at theappropriate speed, with an appropriatedistance to other vehicles, and in accord-ance with current traffic rules and regula-tions.
Related information
• Activating/deactivating BLIS (p. 347)
• BLIS limitations (p. 348) •
Recommended maintenance for BLIS(p. 349)
• BLIS messages (p. 350)
Activating/deactivating BLIS The BLIS 80
function can be activated/deacti-
vated.
Location of BLIS indicator light. 81
Indicator light
The BLIS button in the center display's Func- tion view is used to activate/deactivate thefunction.
–Tap the BLIS button in Function view.
> The BLIS indicator light shows the status of the function: GREEN (on) or GRAY (off).
If BLIS is activated when the engine is started,the indicator lights in the rearview mirrors willflash once. If BLIS is deactivated when the engine is turned off, it will remain off the next time the engine isstarted and the indicator lights will not illuminate.

DRIVER SUPPORT
* Option/accessory.351
Cross Traffic Alert *
CTA 86
is a supplementary driver support system
to BLIS 87
that is intended to help the driver
detect vehicles crossing behind the vehicle while backing up.
CTA overview.
CTA supplements BLIS by detecting traffic cross- ing from the side, e.g. when backing out of aparking space. CTA is primarily designed to detect vehicles, but in certain cases can also detect pedestrians orsmaller objects such as bicycles. CTA is only active when the vehicle is moving backward or if reverse gear is engaged. If CTA detects that something is approachingyour vehicle from the side:
• an audible signal will sound from either theleft or right speaker, depending on whichside of your vehicle the object is approachingfrom.
• an icon will illuminate in the PAS 88
graphic
on the screen.
• an icon will appear in the Park Assist Cam-era's Top view.
Illuminated CTA icon in the PAS 88
graphic 89
on the
screen.
WARNING
• The Cross Traffic Alert function is supple- mentary driver support intended to facili-tate driving and make it safer – it cannothandle all situations in all traffic, weatherand road conditions.
• The responsibility for reversing the vehiclesafely and using good judgment alwaysrests with the driver.
• Cross Traffic Alert is not a substitute forthe driver's attention and judgment. Thedriver is always responsible for ensuringthe vehicle is driven in a safe manner, atthe appropriate speed, with an appropri-ate distance to other vehicles, and inaccordance with current traffic rules andregulations.
Related information
•
Activating/deactivating Cross Traffic Alert(p. 352)
• Cross Traffic Alert limitations (p. 352)
• Recommended maintenance for CrossTraffic Alert (p. 353)
• Cross Traffic Alert messages (p. 354)
86
Cross Traffic Alert
87 Blind Spot Information
88 Park Assist System: Parking assistance with reversing sensors
89 Note: This illustration is general and details may vary depending on model.

DRIVER SUPPORT
* Option/accessory.355
Road Sign Information *
The Road Sign Information (RSI 95
) function noti-
fies the driver of speed-related road signs the vehicle is passing.
Examples of signs that can be detected 96
.
If the vehicle passes a speed limit sign, it will be displayed in the instrument panel and the head- up display *.
NOTE
In certain markets, the Road Sign Information function (RSI) is only available in combinationwith Sensus Navigation.
WARNING
• The Road Sign Information function is supplementary driver support intended tofacilitate driving and help make it safer –it cannot handle all situations in all traffic,weather and road conditions.
• Road Sign Information is not a substitutefor the driver's attention and judgment.The driver is always responsible forensuring the vehicle is driven in a safemanner, at the appropriate speed, with anappropriate distance to other vehicles,and in accordance with current trafficrules and regulations.
Related information
•Activating/deactivating Road Sign Informa-tion (p. 356)
• Road Sign Information and sign displays(p. 356)
• Road Sign Information and SensusNavigation (p. 357)
• Road Sign Information with Speed Warningand Settings (p. 357)
• Activating/deactivating Speed Warning inRoad Sign Information (p. 358) •
Road Sign Information with speed camerainformation (p. 359)
• Road Sign Information limitations (p. 359)
95
Road Sign Information
96 Road signs differ according to market ‒ the illustrations shown here are just some examples.

DRIVER SUPPORT
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* Option/accessory.359
Road Sign Information with speedcamera information
Vehicles equipped with RSI 102
and Sensus
Navigation * can provide information on upcom-
ing speed cameras in the instrument panel.
Speed camera information in the instrument panel 103
.
If the vehicle exceeds a detected speed limit with theSpeed Warning function acti-vated, the driver is given aspeed warning when the vehi-cle is approaching a speedcamera if the navigation map
for the vehicle's current location contains infor-mation on speed cameras.
For more information on Speed Warnings in con- junction with speed cameras, see "Road SignInformation with Speed Warning and settings"and "Road Sign Information limitations".
NOTE
• For an audible alert to be provided if the speed is exceeded, the Speed Limit
Warning function must be activated and
the Road Sign Audio Warning sub-
function must be On. Audible alerts are
provided if the vehicle's speed exceeds the speed displayed by RSI in the instru-ment panel.
• Information about speed cameras on thenavigation map is not available for allmarkets/areas.
Related information
•
Road Sign Information
* (p. 355)
• Road Sign Information with Speed Warning and Settings (p. 357)
• Road Sign Information limitations (p. 359)
Road Sign Information limitations
Road Sign Information (RSI 104
) functionality may
be reduced in certain situations.
RSI could have reduced functionality due to e.g.:
• faded road signs
• signs located in a curve in the road
• twisted or damaged signs
• signs positioned high above the road
• fully/partially obstructed or poorly positioned signs
102
Road Sign Information
103 Note: This illustration is general and details may vary depending on model and market/region.
104 Road Sign Information

DRIVER SUPPORT
361
The warnings will be repeated after a short time if driving behavior does not improve.
WARNING
•
The Driver Alert Control function is sup- plementary driver support intended tofacilitate driving and help make it safer –it cannot handle all situations in all traffic,weather and road conditions.
• Driver Alert Control must not be used toextend a period of driving. The drivershould plan in breaks at regular intervalsand make sure they are well rested.
• Driver Alert Control is not a substitute forthe driver's attention and judgment. Thedriver is always responsible for ensuringthe vehicle is driven in a safe manner, atthe appropriate speed, with an appropri-ate distance to other vehicles, and inaccordance with current traffic rules andregulations.
WARNING
An alarm from Driver Alert Control should be taken very seriously since a sleepy driver isoften not aware of their own condition. If the alarm sounds or you feel fatigued:
• Stop the vehicle safely as soon as possi- ble and rest.
Studies have shown that it is just as danger- ous to drive while tired as it is to drive underthe influence of alcohol or other stimulants.
Related information
• Activating/deactivating Driver Alert Control (p. 361)
• Selecting guidance to a rest area if theDriver Alert Control warning has been given(p. 362)
• Driver Alert Control limitations (p. 362)
Activating/deactivating Driver AlertControl
The Driver Alert Control (DAC) function can be activated/deactivated.
On/OffTo change DAC settings: 1. Tap
Settings in the center display's Top
view.
2. Select
My CarIntelliSafeDriver Alert
Control.
3. Select/deselect
Alertness Warning to acti-
vate/deactivate DAC.
Related information
• Driver Alert Control (p. 360)

DRIVER SUPPORT
362
Selecting guidance to a rest area ifthe Driver Alert Control warning hasbeen givenThe
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 abreak if the DAC warning is given. To select
Rest Stop Guidance:
1. Tap
Settings in the center display's Top
view.
2. Select
My CarIntelliSafeDriver Alert
Control.
3. Select/deselect
Rest Stop Guidance to
activate/deactivate the function.
Related information
• Driver Alert Control (p. 360)
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 indriving 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 – whenusing the Pilot Assist function – resulting inthe 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 functionhas issued a warning or not.
NOTE
The function uses the vehicle's camera unit, which has some general limitations – see thesection "Camera unit limitations".
Related information
• Driver Alert Control (p. 360)
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 reducethe risk of the vehicle unintentionally veering outof 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 withclearly visible traffic lane marker lines. On narrow roads, the function may be unavailable and go into standby mode. The function willbecome available again when the road becomessufficiently wide.
A camera monitors the road/traffic lane's marker lines.
107 Lane Keeping Aid

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363
Lane Keeping Aid steers the vehicle back into its lane.
Lane Keeping Aid alerts the driver using vibrations in the steering wheel108
.
Depending on the settings used, Lane Keeping Aid functions in different ways:
• With
Assist109
activated: When the vehicle
approaches a lane marker line, LKA will actively steer the vehicle back into the laneusing light pressure on the steering wheel.
• With
Warning109
activated: If the vehicle is
about to move over a lane marker line, the driver will be alerted by vibrations in thesteering 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 helpimprove driving safety – it cannot handleall situations in all traffic, weather androad conditions.
• The function is not a substitute for thedriver's attention and judgment. The driveris always responsible for ensuring thevehicle is driven in a safe manner, at theappropriate speed, with an appropriatedistance 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 the lane marker line, the longer the vibrations.
109 See "LKA assistance options" under "Activating/deactivating Lane Keeping Aid".