2019 VOLVO S90 TWIN ENGINE ESP

DRIVER SUPPORT
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Pilot Assist limitations
Pilot Assist functionality may be reduced in cer-tain situations.
Pilot Assist is a driver support function designedto simplify driving and assist the driver in manysituations. However, the driver is always responsi-ble for maintaining a suitable distance to vehiclesor objects around it and ensuring that the vehicleis correctly positioned in the traffic lane.

WARNING
In some situations, Pilot Assist may have trou-ble helping the driver properly or may bedeactivated automatically – we advise againstusing Pilot Assist in such cases. Examples ofsuch situations include:
the lane markings are worn, missing orcross each other.
lane division is unclear, for example, whenthe lanes divide or merge or at exits orwhen there are multiple sets of markings.
edges or other lines than lane markingsare present on or near the road, e.g.curbs, joints or repairs to the road sur-face, edges of barriers, roadside edges orstrong shadows.
the lane is narrow or winding.
the lane contains ridges or holes.
weather conditions are poor, e.g. rain,snow or fog or slush or reduced visibilitywith poor light conditions, backlighting,wet road surface, etc.
The driver should also note that Pilot Assisthas the following limitations:
High curbs, roadside barriers, temporaryobstacles (traffic cones, safety barriers,etc.) are not detected. Alternatively, theymay be detected incorrectly as lane mark-ings, with a subsequent risk of contactbetween the vehicle and such obstacles.
The driver is responsible for ensuring thatthe vehicle maintains a suitable distancefrom such obstacles.
The camera and radar sensors do nothave the capacity to detect all oncomingobjects and obstacles in traffic environ-ments, e.g. potholes, stationary obstaclesor objects that completely or partiallyblock the route.
Pilot Assist does not "see" pedestrians,animals, etc.
The recommended steering input is lim-ited in force, which means that it cannotalways help the driver to steer and keepthe vehicle within the lane.
In vehicles equipped with SensusNavigation*, the function is able to useinformation from map data, which couldcause variations in performance.
Pilot Assist is switched off if the powersteering is working with reduced power -e.g. during cooling due to overheating(see section "Speed-dependent steeringforce").
The driver can always correct or adjust steeringassistance provided by Pilot Assist by turning thesteering wheel to the desired position.

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Radar sensor limitations
The radar sensor used by several of the driversupport functions has certain limitations, whichalso affect the functions using the radar sensor.

Obstructed camera
The area marked in the illustration must be kept free ofdecals, objects, solar film, etc.60
The radar sensor is located on the upper interiorsection of the windshield along with the camera.
CAUTION
Do not place, affix or mount anything on theinside or outside of the windshield, or in frontof or around the camera and radar unit – thiscould disrupt camera and radar-based func-tions.
It could cause functions to be reduced, deac-tivated completely or produce an incorrectfunction response.
If this symbol and the message"Windscreen sensor Sensorblocked, see Owner's manual" isdisplayed in the instrument panel, itmeans that the camera and radar sensor areunable to detect other vehicles, cyclists, pedes-trians and large animals in front of the vehicleand that the vehicle's camera and radar-basedfunctions may be obstructed, reduced, completelydisabled or providing inaccurate responses.
The following table shows some of the situations that can cause the message to be displayed, and suggested actions:
CauseAction
The area of the windshield in front of the camera/radar sensor is dirty orcovered by ice or snow.Clean the windshield in front of the camera/radar sensor and remove dirt, iceand snow.
Thick fog, heavy rain or snow is blocking the radar signals or the camera'srange of visibility.No action. Heavy precipitation may sometimes prevent the camera/radar sensorfrom functioning.
60Note: This illustration is general and details may vary depending on model.

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High temperatures
If the temperature in the passenger compartmentis very high, the camera/radar sensor will switchoff temporarily for approx. 15 minutes after theengine is started to protect its electronic compo-nents. When the temperature has cooled suffi-ciently, the camera/radar sensor will automati-cally restart.
Damaged windshield
CAUTION
If there are cracks, scratches or stone chipson the windshield in front of any of the cam-era and radar unit "windows" and this coversan area of about 0.5 × 3.0 mm(0.02 × 0.12 in.) or more, contact a workshopto have the windshield replaced – an author-ized Volvo workshop is recommended.
Failure to take action could result in reducedperformance for the driver support systemsthat use the camera and radar unit.
It could cause functions to be reduced, deac-tivated completely or produce an incorrectfunction response.
To avoid the risk of loss of function, malfunc-tion or reduced function of the driver supportsystems that use the radar unit, the followingalso apply:
Volvo advises against repairing cracks,scratches or stone chips in the area infront of the camera and radar unit – theentire windshield should instead bereplaced.
Before replacing the windshield, contactan authorized Volvo workshop to verifythat the right windshield has beenordered and installed.
The same type of windshield wipers orwipers approved by Volvo should be usedfor replacement.

CAUTION
If the windshield is replaced, the camera andradar unit must be recalibrated by a workshopto help ensure proper functioning of all of thevehicle's camera and radar-based systems –an authorized Volvo workshop is recom-mended.

Related information
Radar sensor (p. 324)

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Recommended maintenance for theradar sensor
In order for the camera/radar sensor to functionproperly, the area of the windshield in front of theunit must be kept free of dirt, ice, snow, etc. andshould be washed regularly with water and carwashing detergent.

NOTE
Dirt, ice and snow covering the camera andradar unit reduce their function and can makemeasurement impossible.
It could cause functions to be reduced, deac-tivated completely or produce an incorrectfunction response.

Related information
Radar sensor (p. 324)
Radar sensor type approval
The type approval for the vehicle radar sensor in
the ACC61, PA62 and BLIS63 functions can beread here.
ACC, PA and BLIS
USA & Canada:
FCC ID: L2C0054TR IC: 3432A-0054TR
FCC ID: L2C0055TR IC: 3432A-0055TR
This device complies with Part 15 of the FCCRules and with Industry Canada license-exemptRSS standard(s).
Operation is subject to the following twoconditions:
(1) This device may not cause harmfulinterference, and
(2) This device must accept any interferencereceived, including interference that may causeundesired operation.
Cet appareil est conforme aux CNR d

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CauseAction
The area of the windshield in front of the camera/radar sensor isdirty or covered by ice or snow.Clean the windshield in front of the camera/radar sensor and remove dirt, ice andsnow.
Thick fog, heavy rain or snow is blocking the radar signals or thecamera's range of visibility.No action. Heavy precipitation may sometimes prevent the camera/radar sensor fromfunctioning.
Water or snow is spraying/swirling up and blocking the radar signalsor the camera's range of visibility.No action. Very wet or snow-covered roads may sometimes prevent the camera/radar sensor from functioning.
There is dirt between the inside of the windshield and the camera/radar sensor.Consult a workshop to have the area of the windshield on the inside of the camera'scasing cleaned. An authorized Volvo workshop is recommended.
Bright sunlight.No action. The camera/radar sensor will reset automatically when lighting conditionsimprove.

NOTE
Keep the windshield in front of the cameraand radar unit clean.

High temperatures
If the temperature in the passenger compartmentis very high, the camera/radar sensor will switchoff temporarily for approx. 15 minutes after theengine is started to protect its electronic compo-nents. When the temperature has cooled suffi-ciently, the camera/radar sensor will automati-cally restart.
Damaged windshield
CAUTION
If there are cracks, scratches or stone chipson the windshield in front of any of the cam-era and radar unit "windows" and this coversan area of about 0.5 × 3.0 mm(0.02 × 0.12 in.) or more, contact a workshopto have the windshield replaced – an author-ized Volvo workshop is recommended.
Failure to take action could result in reducedperformance for the driver support systemsthat use the camera and radar unit.
It could cause functions to be reduced, deac-tivated completely or produce an incorrectfunction response.
To avoid the risk of loss of function, malfunc-tion or reduced function of the driver supportsystems that use the radar unit, the followingalso apply:
Volvo advises against repairing cracks,scratches or stone chips in the area infront of the camera and radar unit – theentire windshield should instead bereplaced.
Before replacing the windshield, contactan authorized Volvo workshop to verify

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Recommended maintenance for thecamera/radar sensor
In order for the camera/radar sensor to functionproperly, the area of the windshield in front ofthe unit must be kept free of dirt, ice, snow, etc.and should be washed regularly with water andcar washing detergent.

NOTE
Dirt, ice and snow covering the camera andradar unit reduce their function and can makemeasurement impossible.
It could cause functions to be reduced, deac-tivated completely or produce an incorrectfunction response.

Related information
Camera (p. 329)
City Safety™
City Safety can alert the driver with light, soundand pulsations in the brake pedal to help thedriver detect pedestrians, cyclists, large animalsand vehicles that appear suddenly – the vehiclewill then attempt to automatically brake if thedriver does not act within a reasonable amountof time.
Location of the camera and radar sensor65.
City Safety can help prevent a collision or lowerthe vehicle's speed at the point of impact.
City Safety is an aid intended to assist the driverif a collision with a pedestrian, large animal,cyclist or vehicle is imminent.
City Safety can help the driver avoid a collisionwhen e.g. driving in stop-and-go traffic, when
changes in the traffic ahead and driver distractioncould lead to an incident.
The function assists the driver by automaticallyapplying the brakes if there is an imminent risk ofa collision and the driver does not react in time bybraking and/or steering away.
City Safety activates a brief, forceful braking in anattempt to stop your vehicle immediately behindthe vehicle or object ahead.
City Safety is activated in situations in which thedriver should have applied the brakes much ear-lier, which means that the system will not be ableto assist the driver in all situations.
City Safety is designed to be activated as late aspossible to help avoid unnecessary intervention.
Normally, the occupants of the vehicle will not beaware of City Safety except when the systemintervenes when a collision is imminent.
65Note: This illustration is general and details may vary depending on model.

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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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of the cyclist's head, arm, shoulders, legs, torsoand lower body in combination with normalhuman 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 ridingon 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 thecyclist 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 ensuringthat the vehicle is driven correctly and with asafety distance suitable for the speed.
Pedestrians
Optimal examples of what the system considers to be apedestrian: clear body contours.
For optimal performance, the system's functionfor 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 acontrast 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 darkconditions 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 inclothing 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 ensuringthat the vehicle is driven correctly and with asafety distance suitable for the speed.