VOLVO XC90 T8 2018 Owner´s Manual

DRIVER SUPPORT
}}
339
The
Late warning distance setting should there-
fore only be used in exceptional cases, such as when a more dynamic driving style is preferred.
WARNING
• No automatic system can guarantee 100% correct function in all situations.You should therefore never test use ofCity Safety in the direction of people, ani-mals or vehicles – this could lead tosevere damage, serious personal injury oreven death.
• City Safety warns the driver if there is arisk of collision, but the function cannotreduce the driver's reaction time.
• Even if the warning distance has been set to
Early, warnings may be perceived as
late in certain situations – e.g. when there are large speed differences or if the vehi-cle ahead suddenly brakes heavily.
• With the warning distance set to
Early,
warnings come further in advance. This may cause the warnings to come morefrequently than with warning distance
Normal, but is recommended since it can
make City Safety more effective.
NOTE
The warning with direction indicators for Rear Collision Warning is deactivated if the colli-sion warning distance in the City Safety func- tion is set to the lowest level "
Late".
The seat belt tensioning and braking func- tions remain active.
Related information
• City Safety
™ (p. 335)
Detecting obstacles with City Safety City Safety can detect vehicles, cyclists, large animals and pedestrians.
VehiclesCity Safety detects most types of vehicles that are either stationary, moving in the same direc-tion as your vehicle or those described in "CitySafety in crossing traffic". For City Safety to be able to detect a vehicle in the dark, its headlights and taillights must be onand clearly visible.
Cyclists
Optimal examples of what City Safety would interpret to be a cyclist: clear body and bicycle shapes.
For optimal performance, the system's function for cyclist detection needs the clearest possibleinformation about the contours of the bicycle andof the cyclist's head, arm, shoulders, legs, torso

||
DRIVER SUPPORT
340and lower body in combination with normal human movements. If large portions of the cyclist's body or the bicy- cle itself are not visible to the function's camera,it will not be able to detect a cyclist. The system can only detect adult cyclists riding on bicycles intended for adults.
WARNING
City Safety is supplementary driver support, but it cannot detect all cyclists in all situationsand, for example, cannot see:
• partially obscured cyclists.
• cyclists if the background contrast of the cyclist is poor - warning and brake inter-ventions may then be late or not occur atall.
• cyclists in clothing that hides their bodycontour.
• bikes loaded with large objects.
The driver is always responsible for ensuring that the vehicle is driven correctly and with asafety distance suitable for the speed.
Pedestrians
Optimal examples of what the system considers to be a pedestrian: clear body contours.
For optimal performance, the system's function for pedestrian detection needs the clearest pos-sible information about body and bicycle con-tours. This entails being able to detect the con-tours of the pedestrian's head, arm, shoulders,legs, torso and lower body in combination withnormal human movements. In order to detect a pedestrian, there must be a contrast to the background, which could dependon clothing, weather conditions, etc. If there is lit-tle contrast, the person may be detected late ornot at all, which may result in a delayed reactionfrom the system or no reaction at all. City Safety can detect pedestrians even in dark conditions if they are illuminated by the vehicle'sheadlights.
WARNING
City Safety is supplementary driver support, but it cannot detect all pedestrians in all sit-uations and, for example, cannot see:
• partially obscured pedestrians, people in clothing that hides their body contour orpedestrians shorter than 80 cm (32 in.).
• pedestrians if the background contrast ofthe pedestrians is poor - warning andbrake interventions may then be late ornot occur at all.
• pedestrians who are carrying largeobjects.
The driver is always responsible for ensuring
that the vehicle is driven correctly and with a safety distance suitable for the speed.

DRIVER SUPPORT
}}
341
Large animals
Optimal examples of what City Safety would interpret as a large animal: stationary or moving slowly and with clearbody contours.
For optimal performance, the system's function for detecting large animals (e.g. moose, horses,etc.) needs the clearest possible informationabout body contours. This entails being able todetect the animal straight from the side in combi-nation with normal movements for that animal. If parts of the animal's body are not visible to the function's camera, the system will not be able todetect the animal. City Safety can detect large animals even in dark conditions if they are illuminated by the vehicle'sheadlights.
WARNING
City Safety is supplementary driver support, but it cannot detect all large animals in all sit-uations and, for example, cannot see:
• partially obscured larger animals.
• larger animals seen from the front or from behind.
• running or fast moving larger animals.
• larger animals if the contrast of the ani-mal's background is poor - warning andbrake interventions may then occur lateor not at all.
• smaller animals such as cats and dogs.
The driver is always responsible for ensuring that the vehicle is driven correctly and with asafety distance suitable for the speed.
Related information
• City Safety
™ (p. 335)
City Safety in crossing traffic
City Safety can assist the driver when turning in the path of an oncoming vehicle in an intersec-tion.
: Sector in which City Safety can detect an oncoming
vehicle in crossing traffic.
In order for City Safety to detect an oncoming vehicle in situations where there is a risk of a col-lision, that vehicle must be within the sector inwhich City Safety can analyze the situation. The following criteria must also be met:
• your vehicle's speed must be at least 4 km/h (3 mph)
• your vehicle must be making a left turn
• the oncoming vehicle's headlights must beon

||
DRIVER SUPPORT
342
WARNING
•The "City Safety in crossing traffic" func- tion is supplementary driver supportintended to improve driving safety – itcannot handle all situations in all traffic,weather and road conditions.
• Warnings and brake interventions due toa collision risk with an oncoming vehicleoften come very late.
• Never wait for a collision warning or forCity Safety to intervene.
• City Safety is not a substitute for the driv-er's attention 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
•
City Safety
™ (p. 335)
Limitations of City Safety incrossing traffic
In certain situations, it may be difficult for City Safety to help the driver avoid a collision withcrossing traffic.
For example:
• on slippery roads when Electronic Stability Control (ESC) is actively operating
• if an approaching vehicle is detected at a latestage
• if the oncoming vehicle is partially obstructedby another vehicle or object
• if the oncoming vehicle's headlights are off
• if the oncoming vehicle is moving erraticallyand e.g. suddenly changes lanes at a latestage.
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".
Related information
•
City Safety
™ (p. 335)

DRIVER SUPPORT
343
City Safety and delayed evasivemaneuvers City Safety can assist the driver by automatically braking the vehicle when it is not possible toavoid a collision by steering alone.
City Safety assists the driver by periodically attempting to predict possible "escape routes" tothe sides of the vehicle in the event a slow-mov-ing or stationary vehicle were to be detected at alate stage.
Your vehicle (1) cannot detect any potential escape routes for veering away from the vehicle ahead (2) andmay therefore apply the brakes at an earlier stage.
Own vehicle
Slow-moving/stationary vehicles
City Safety will not intervene to automatically apply the brakes if it is possible for the driver toavoid a collision by steering the vehicle. However, if City Safety determines that an eva-sive maneuver would not be possible due to traf-fic in the adjacent lane(s), the function can assistthe driver by automatically starting to apply thebrakes at an earlier stage.
WARNING
•
The possibility of City Safety predicting a certain situation is supplementary driversupport intended to improve driving safety– it cannot handle all situations in all traf-fic, weather and road conditions.
• City Safety is not a substitute for the driv-er's attention 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.
Limitations of City Safety during evasive maneuvers
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".
Related information
•
City Safety
™ (p. 335)

DRIVER SUPPORT
344
City Safety limitations
City Safety functionality may be reduced in cer- tain situations.
Surroundings
Low objects
Hanging objects, such as flags for overhanging loads or accessories such as auxiliary lights orfront protective grids that extend beyond theheight of the hood, may limit City Safety function-ality.
Slippery road conditions
The extended braking distance on slippery roads may reduce City Safety's capacity to help avoid acollision. In these types of situations, the Anti-lock Braking System and Electronic Stability Con- trol (ESC 77
) will help provide optimal braking
power with maintained stability.
Backlighting
The visual warning signal in the windshield may be difficult to detect in bright sunlight, if there arereflections, or if the driver is wearing sunglassesor not looking straight ahead.
Heat
If the temperature in the passenger compartment is high due to e.g. bright sunlight, the visual warn-ing signal in the windshield may be temporarilydisabled.
Camera and radar sensor's field of vision
The camera's field of vision is limited and in cer- tain situations, it may be unable to detect pedes-trians, large animals, cyclists or vehicles, or it maydetect them later than expected. Vehicles that are dirty may be detected later than clean vehicles, and in dark conditions, motorcy-cles may be detected late or not at all. If a text message displayed in the instrument panel indicates that the camera/radar sensor isobstructed, it may be difficult for City Safety todetect pedestrians, large animals, cyclists, vehi-cles or lane markings in front of the vehicle. CitySafety functionality may therefore be reduced. Text messages may not be displayed for all situa- tions in which the windshield sensors areblocked. The driver must therefore always keepthe windshield in front of the camera/radar sen-sor clean.
CAUTION
Maintenance and replacement of City Safety components may only be performed by aworkshop – an authorized Volvo workshop isrecommended.
Driver intervention
Backing up
City Safety is temporarily deactivated when the vehicle is backing up.
Low speed
City Safety is not activated at very low speeds under 4 km/h (3 mph). The system will thereforenot intervene in situations in which your vehicle isapproaching another vehicle very slowly, such aswhen parking.
Active driver
Action by the driver always has priority. City Safety will therefore not react or will react at alater stage with a warning or intervention in situa-tions in which the driver is clearly steering andoperating the accelerator pedal, even if a collisionis unavoidable. An active and aware driving style may therefore delay collision warnings and intervention in order to minimize unnecessary warnings.
77 Electronic Stability Control

DRIVER SUPPORT
345
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. 335)

DRIVER SUPPORT
346
City Safety messages A number of messages related to City Safety may be displayed in the instrument panel.
Some examples of symbols and messages are shown in the table below.
MessageMeaning
City Safety Automatic interventionWhen City Safety is braking or has activated the automatic braking function, one or more symbols may illuminate in the instrument panel and a text message may be displayed.
City Safety Reduced functionality Service requiredThe system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.
A text message can be erased by briefly pressing the
button in the center of the right-side
steering wheel keypad. If the message persists: Contact a workshop ‒ an
authorized Volvo workshop is recommended.
Related information
• City Safety
™ (p. 335)

DRIVER SUPPORT
347
Rear Collision Warning
The Rear Collision Warning (RCW) function can help the driver avoid rear-end collisions fromvehicles approaching from behind.
RCW is automatically activated each time the engine is started. RCW can warn the driver of a potential collision with vehicles approaching from behind by rapidlyflashing the turn signals. If, at a speed below 30 km/h (20 mph), the RCW function detects that the car is in danger of beinghit from behind, the seatbelt tensioners may ten-sion the front seatbelts and activate the WhiplashProtection System safety system. Immediately before a collision from behind, RCW may also activate the foot brake in order toreduce the forward acceleration of the car duringthe collision. However, the brakes will only beapplied if your vehicle is stationary. The brakeswill be immediately released if the acceleratorpedal is depressed.
Related information
• Rear Collision Warning limitations (p. 347)
• Whiplash Protection System (p. 46)
Rear Collision Warning limitations
In some situations, it may be difficult for RCW to warn the driver of a collision risk.
This may be the case if:
• the vehicle approaching from the rear is detected at a late stage
• the vehicle approaching from the rearchanges lanes at a late stage
• the vehicle approaching from the rear is mov-ing at a speed above 80 km/h (50 mph)
• a trailer, bicycle holder or similar is con-nected to the vehicle's electrical system - theRCW function will then be automaticallydeactivated.
NOTE
In certain markets RCW does
not warn with
the direction indicators due to local traffic regulations – in such cases, that part of thefunction is deactivated.
NOTE
The warning with direction indicators for Rear Collision Warning is deactivated if the colli-sion warning distance in the City Safety func- tion is set to the lowest level "
Late".
The seat belt tensioning and braking func- tions remain active.
Related information
• Rear Collision Warning (p. 347)

DRIVER SUPPORT
* Option/accessory.
348
BLIS *
The BLIS 78
function is designed to help provide
assistance in heavy traffic with several lanes moving in the same direction by helping thedriver to detect the presence of vehicles in the"blind spot" area behind and to the side of thevehicle.
BLIS is a driver support system designed to alert the driver of:
• vehicles in your "blind spot"
• vehicles approaching rapidly in adjacentlanes.
Location of BLIS indicator light. 79
Indicator light
The BLIS button in the center display's Func- tion view is used to activate/deactivate thefunction.
BLIS overview
Blind spot zone
Rapidly approaching vehicle zone.
The BLIS function is active at speeds above 10 km/h (6 mph). The system is designed to react to: • vehicles passing your vehicle
• vehicles that are rapidly approaching your vehicle from behind.
When BLIS detects a vehicle in zone 1 or a rap- idly approaching vehicle in zone 2, an indicatorlight will illuminate in the relevant rearview mirrorand glow steadily. If the driver then uses the turnsignal on the side in which the warning has been
78 Blind Spot Information Systems
79 Note: This illustration is general and details may vary depending on model.