steering VOLVO S90 TWIN ENGINE 2019 Owners Manual

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WARNING
The City Safety function is supplementarydriver support intended to help improvedriving safety – it cannot handle all situa-tions in all traffic, weather and road condi-tions.
The City Safety auto-brake function canprevent a collision or reduce collisionspeed, but to ensure full brake perform-ance the driver should always depress thebrake pedal – even when the car auto-brakes.
The warning and steering assistance areonly activated if there is a high risk of col-lision – you must therefore never wait forthe collision warning or City Safety tointervene.
Warnings and brake interventions forpedestrians and cyclists are disengagedat vehicle speeds over 80 km/h(50 mph).
City Safety does not activate auto-brakingintervention during heavy acceleration.
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.
The driver is advised to read all sectionsin the Owner's Manual that relate to CitySafety to learn about factors such as itslimitations and what the driver should beaware of before using the system (seethe list of links for all subsections).

Related information
City Safety parameters and sub-functions(p. 334)
Setting a warning distance for City Safety(p. 336)
Detecting obstacles with City Safety (p. 337)
City Safety in crossing traffic (p. 339)
Limitations of City Safety in crossing traffic(p. 340)
City Safety and delayed evasive maneuvers(p. 341)
City Safety braking for oncoming vehicles(p. 342)
City Safety limitations (p. 343)
City Safety messages (p. 345)
City Safety parameters and sub-functions
City Safety can help avoid a collision with a vehi-cle, cyclist or large animal ahead by reducing thevehicle's speed using its automatic braking func-tion.
If the difference in speed is greater than thespeeds specified below, the City Safety auto-brake function cannot prevent a collision, but itcan help mitigate its effects.

Vehicles
City Safety can help prevent a collision with avehicle ahead by reducing your vehicle's speedby up to 60 km/h (37 mph).

Cyclists
City Safety can help prevent a collision with acyclist ahead by reducing your vehicle's speed byup to 50 km/h (30 mph).

Pedestrians
City Safety can help prevent a collision with apedestrian ahead by reducing your vehicle'sspeed by up to 45 km/h (28 mph).

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City Safety and delayed evasivemaneuvers
City Safety can assist the driver by automaticallybraking the vehicle when it is not possible toavoid a collision by steering alone.
City Safety assists the driver by periodicallyattempting 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 escaperoutes 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 automaticallyapply 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 acertain 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 combinedcamera and radar unit, which has certain gen-eral limitations; see sections "Camera limita-tions" and "Radar sensor limitations".
Related information
City Safety™ (p. 333)
Camera limitations (p. 330)
Radar sensor limitations (p. 325)

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City Safety limitations
City Safety functionality may be reduced in cer-tain situations.

Surroundings
Low objects
Hanging objects, such as flags for overhangingloads 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 roadsmay reduce City Safety's capacity to help avoid acollision. In these types of situations, the Anti-lock Braking System and Electronic Stability Con-
trol (ESC68) will help provide optimal brakingpower with maintained stability.

Backlighting
The visual warning signal in the windshield maybe 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 compartmentis 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 thanclean vehicles, and in dark conditions, motorcy-cles may be detected late or not at all.
If a text message displayed in the instrumentpanel 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 Safetycomponents may only be performed by aworkshop – an authorized Volvo workshop isrecommended.
Driver intervention
Backing up
City Safety is temporarily deactivated when thevehicle is backing up.

Low speed
City Safety is not activated at very low speedsunder 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. CitySafety 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 thereforedelay collision warnings and intervention in orderto minimize unnecessary warnings.
68Electronic Stability Control

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City Safety messages
A number of messages related to City Safetymay be displayed in the instrument panel.
Some examples of symbols and messages are shown in the table below.
MessageMeaning
City Safety
Automatic intervention
When City Safety is braking or has activated the automatic braking function, one or more symbols may illuminate inthe instrument panel and a text message may be displayed.
City Safety
Reduced functionality Servicerequired
The 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-sidesteering wheel keypad.
If the message persists: Contact a workshop ‒ anauthorized Volvo workshop is recommended.

Related information
City Safety™ (p. 333)

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BLIS messages
A number of messages related to BLIS76 maybe displayed in the instrument panel.Some examples of symbols and messages are shown in the table below.
MessageMeaning
Blind spot sensor
Service required
The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.
Blind spot system off
Trailer attached
BLIS and CTA have been deactivated because a trailer has been connected to the vehicle's electrical system.
A text message can be erased by briefly pressing
the button in the center of the right-sidesteering wheel keypad.
If the message persists: Contact a workshop ‒ anauthorized Volvo workshop is recommended.

Related information
BLIS* (p. 347)
76Blind Spot Information

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Cross Traffic Alert messages
A number of messages related to CTA85 may bedisplayed in the instrument panel.Some examples of symbols and messages are shown in the table below.
MessageMeaning
Blind spot sensor
Service required
The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.
Blind spot system off
Trailer attached
BLIS and CTA have been deactivated because a trailer has been connected to the vehicle's electrical system.
A text message can be erased by briefly pressing
the button in the center of the right-sidesteering wheel keypad.
If the message persists: Contact a workshop ‒ anauthorized Volvo workshop is recommended.

Related information
Cross Traffic Alert* (p. 352)
85Cross Traffic Alert

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NOTE
The function uses the vehicle's camera unit,which has some general limitations – see thesection "Camera unit limitations".

Related information
Road Sign Information* (p. 356)
Camera limitations (p. 330)
Driver Alert Control
The Driver Alert Control (DAC) function isdesigned to help capture the driver becomeaware of erratic behavior, e.g. if the driver is dis-tracted or showing signs of fatigue.
The objective of DAC is to detect slowly deterio-rating driving behavior and is primarily intended tobe used on major roads. The function is notintended for use in city traffic.
DAC is activated when the vehicle's speedexceeds 65 km/h (40 mph) and remains activeas long as speeds are above 60 km/h (37 mph).
DAC detects the vehicle's position in the traffic lane.
A camera monitors the traffic lane's marker linesand compares the direction of the road with thedriver's movements of the steering wheel.
The vehicle is moving erratically in the lane.
If driving behavior becomesconsiderably erratic, the driverwill be alerted by this symbol inthe instrument panel, an audi-ble signal and the messageTime for a break.
If the vehicle is equipped with SensusNavigation* and the Rest Stop Guidance func-tion is activated, a suitable place to take a breakwill also be suggested (see section “Selectingguidance to a rest stop if a Driver Alert Controlwarning has been given”).
The warning will be repeated after a short time ifdriving behavior does not improve.

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Selecting guidance to a rest area ifthe Driver Alert Control warning hasbeen given
The Rest Stop Guidance function can beswitched on or off.
In vehicles equipped with Sensus Navigation*, thedriver can activate a guide that can automaticallysuggest a suitable rest stop if the DAC warningis given.
To select Rest Stop Guidance:
1.Tap Settings in the center display's Topview.
2.Select My CarIntelliSafeDriver AlertControl.
3.Select/deselect Rest Stop Guidance toactivate/deactivate the function.

Related information
Driver Alert Control (p. 362)
Driver Alert Control limitations
Driver Alert Control (DAC) functionality may bereduced in certain situations.
In certain situations, the system may provide awarning 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 beaffected 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 stopand 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. 362)
Camera limitations (p. 330)
Lane Keeping Aid
Lane Keeping Aid (LKA99) is designed toactively steer the vehicle on freeways, highwaysand other major roads to help the driver reducethe risk of the vehicle unintentionally veering outof the lane.
Lake Keeping Assistance steers the vehicle backinto the lane and/or alerts the driver using vibra-tions in the steering wheel.
Lane Keeping Aid is active at speeds between65-200 km/h (40-125 mph) on roads withclearly visible traffic lane marker lines.
On narrow roads, the function may be unavailableand go into standby mode. The function willbecome available again when the road becomessufficiently wide.
A camera monitors the road/traffic lane's marker lines.
99Lane Keeping Aid

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Lane Keeping Aid steers the vehicle back into its lane.
Lane Keeping Aid alerts the driver using vibrations in thesteering wheel100.
Depending on the settings used, Lane KeepingAid functions in different ways:
With Assist101 activated: When the vehicleapproaches a lane marker line, LKA willactively steer the vehicle back into the laneusing light pressure on the steering wheel.
With Warning101 activated: If the vehicle isabout to move over a lane marker line, thedriver will be alerted by vibrations in thesteering wheel.

NOTE
When the direction indicator is activated, theLane 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.
100The steering wheel vibrations vary. The more time the vehicle is over the lane marker line, the longer the vibrations.101See "LKA assistance options" under "Activating/deactivating Lane Keeping Aid".

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Lane Keeping Aid does not intervene
Lane Keeping Aid does not intervene in sharp insidecurves.
In certain cases, such as when a turn signal isused or when "straightening out" an inside curve,Lane Keeping Aid will not provide steering assis-tance or alerts.

Related information
Steering assistance with Lane Keeping Aid(p. 366)
Lane Keeping Aid limitations (p. 368)
Activating/deactivating Lane Keeping Aid(p. 367)
Selecting type of assistance for Lane Keep-ing Aid (p. 367)
Lane Keeping Aid symbols and messages(p. 369)
Lane Keeping Aid symbols in the instrumentpanel (p. 371)Steering assistance with LaneKeeping Aid
Lane Keeping Aid (LKA102) only functions if thedriver's hands are on the steering wheel.
This symbol on the instrumentpanel indicates that LKA isactivated and continuouslymonitoring that the driver'shands are on the steeringwheel.
1. If the driver's hands are not on the steeringwheel, an audible signal will be given and amessage will instruct the driver to activelysteer the vehicle:
Lane Keeping Aid – Apply steering
2. If LKA detects that the driver is not activelysteering the vehicle, the message will berepeated along with a longer audible signal.
3. If the driver still does not begin actively steer-ing the vehicle, a short audible signal will begiven in a different tone, LKA will be deacti-
102Lane Keeping Aid