2017 VOLVO V90 lock

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CauseAction
Water or snow from the road surface swirls up and blocks the radar signals or camera view. No action. Sometimes the unit does not work on a very wet or snow-coveredroad surface.
Dirt has appeared between the inside of the windscreen and the cameraand radar unit. Visit a workshop to have the windscreen inside the unit's cover cleaned - anauthorised Volvo workshop is recommended.
NOTE
Keep the windscreen clean in front of the camera and radar unit.
Vehicle speedThe capacity of the radar unit to detect vehicles ahead is reduced significantly if:
• the speed of the vehicle ahead is signifi-cantly different from that of your own car
Limited field of visionThe radar unit has a limited field of vision. Insome situations another vehicle is not detected,or the detection is made later than expected.
The radar unit's field of vision.
Sometimes the radar unit is late at detecting vehicles at close distances - e.g. a vehicle that drives in between your car and the vehi-cle ahead.
Small vehicles, such as motorcycles, or vehi- cles not driving in the centre of the lane canremain undetected.
In bends, the radar unit may detect the wrong vehicle or lose a detected vehicle fromview.
Low trailers
Low trailer in radar shadow.
Low trailers can also be difficult for the radar unit to detect, or are not detected at all - the drivershould therefore be particularly careful when driv-ing behind low trailers when the adaptive cruisecontrol or Pilot Assist is activated.

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Limitations of the camera unit
The camera unit has certain limitations - which in turn also limits those functions that use the unit.
Impaired visionThe camera has limitations similar to the human eye, i.e. it can "see" worse in for example intensesnowfall or rain, dense fog, heavy dust stormsand snow flurries. Under such conditions, thefunctions of camera-dependent systems could besignificantly reduced or temporarily disengaged. Strong oncoming light, reflections in the carriage- way, snow or ice on the road surface, dirty roadsurfaces or unclear lane markings can also sig-nificantly reduce camera function when it is usedto scan the carriageway to detect pedestrians,cyclists, large animals and other vehicles.
Blocked unit
The marked area must be kept free from stickers, objects, shade film, etc. 13
.
The camera unit is placed inside the upper sec- tion of the windscreen together with the car'sradar unit.
IMPORTANT
Do not place, stick or mount anything on the outside or inside of the windscreen in front ofor around the camera and radar unit — thiscan interfere with camera and radar-depend-ent functions. This may mean that functions are reduced, deactivated completely or give incorrect func-tion response.
If the driver display shows this symbol with the message Windscreen
sensor Sensor blocked, see
Owner's manual, it means that the
camera and radar unit cannot detect other vehi- cles in front of the car.
The following table presents examples of possi- ble causes for a message being shown, alongwith the appropriate action:
13 NOTE: The illustration is schematic - details may vary depending on car model.

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CauseAction
The windscreen surface in front of the camera and radar unit is dirty or covered with ice or snow. Clean dirt, ice and snow from the windscreen surface in front of the camera andradar unit.
Thick fog and heavy rain or snow block the radar signals or the cameraview. No action. Sometimes the unit does not work during heavy rain or snowfall.
Water or snow from the road surface swirls up and blocks the radarsignals or camera view. No action. Sometimes the unit does not work on a very wet or snow-covered roadsurface.
Dirt has appeared between the inside of the windscreen and the cam-era and radar unit. Visit a workshop to have the windscreen inside the unit's cover cleaned - anauthorised Volvo workshop is recommended.
Strong oncoming light No action. The camera unit is reset automatically in more favourable light condi-tions.
NOTE
Keep the windscreen clean in front of the camera and radar unit.
High temperatureAt very high temperatures the camera and radar unit can temporarily be switched off forabout 15 minutes after the engine is started soas to protect the unit's electronics. The cameraand radar unit restarts automatically when thetemperature has fallen sufficiently.
Damaged windscreen
IMPORTANT
If a crack, scratch or stone chip in the wind- screen in front of one of the camera andradar unit “windows” covers an area ofapprox. 0.5 x 3.0 mm or larger, a workshopmust be contacted to have the windscreenreplaced. An authorised Volvo workshop isrecommended. If not rectified it can lead to reduced perform- ance for the driver support systems that usethe camera and radar unit.
This may mean that functions are reduced, deactivated completely or give incorrect func-tion response. To avoid the risk of failed, deficient or reduced operation of driver support systemsthat use the radar unit, the following alsoapplies:
• Volvo recommends
against repairing
cracks, scratches or stone chips in thearea in front of the camera and radar unit.Instead, the whole windscreen should bereplaced.
• Before replacing a windscreen, contactan authorised Volvo workshop to verify

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has the opportunity to avoid a collision via a steering manoeuvre. However, if City Safety anticipates that an evasive manoeuvre is not possible due to traffic in anadjacent lane, the function can assist the driverby automatically starting to brake at an earlierstage.
WARNING
City Safety's ability to anticipate a certain sit- uation is an aid, and does not work in all driv-ing situations or traffic, weather and road con-ditions. The driver always bears ultimate responsibility for ensuring that the vehicle is driven safelyand that applicable laws and road traffic regu-lations are followed.
Related information
•
City Safety (p. 330)
• Limitations of City Safety (p. 337)
Limitations of City Safety
The City Safety function may have limitations in certain situations.
Surroundings
Low objects
Low-hanging objects, e.g. a flag/pennant for pro- jecting load, or accessories such as auxiliarylamps and bull bars that are higher than the bon-net limit the function.
Skidding
On slippery road surfaces the braking distance is extended, which may reduce the capacity of CitySafety to avoid a collision. In such situations, theanti-lock brakes and the stability control ESC willgive the best possible braking force with main-tained stability.
Oncoming light
The visual warning signal in the windscreen may be difficult to notice in the event of strong sun-light, reflections, when sunglasses are beingworn or if the driver is not looking straight ahead.
Heat
In the event of high passenger compartment temperature caused by e.g. strong sunlight, thevisual warning signal in the windscreen may betemporarily disengaged.
The camera and radar unit's field of view
The camera's field of vision is limited, which is why pedestrians, large animals, cyclists and vehi- cles in some situations cannot be detected, orthey are detected later than anticipated. Dirty vehicles may be detected later than others and if it is dark, motorcycles may be detected lateor not at all. If a text message in the driver display indicates that the camera and radar unit is obstructed, CitySafety may be unable to detect pedestrians, largeanimals, cyclists, vehicles or road lines ahead ofthe car. This means that the functionality of CitySafety may be reduced. However, an error message is not shown in all situations where the windscreen sensors areobstructed. The driver must therefore take care tokeep the area of windscreen in front of the cam-era and radar unit clear.
IMPORTANT
Maintenance and replacement of City Safety components must only be performed by aworkshop - an authorised Volvo workshop isrecommended.
Driver intervention
Reversing
When your own car is reversing, City Safety is temporarily deactivated.

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SymbolMessage Specification
Driver support system Reduced functionality Service requiredThe system does not function as it should. A workshop should be contacted - an authorised Volvo workshop is recommended.
Windscreen sensor Sensor blocked, see Owner's manualThe ability of the camera to scan the roadway in front of the car is reduced.
Lane Keeping Aid Apply steeringThe LKA steering assistance does not function if the driver does not hold the wheel. Follow the instruction and steer the car.
Lane Keeping Aid Standby until steering appliedLKA is set in standby mode until the driver starts to steer the car again.
Related information
•Lane Keeping Aid (p. 354)
• Activate/deactivate Lane Keeping Aid (p. 356)

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Symbols and messages for Run-off Mitigation A number of symbols and messages regarding the Run-off Mitigation Run-off Mitigation can beshown in the driver display.The following table shows some examples.
SymbolMessage Specification
Automatic intervention City SafetyWhen Run-off Mitigation is activated, a message is shown to the driver informing that the system has been activated.
Driver support system Reduced functionality Service requiredThe system does not function as it should. A workshop should be contacted - an authorised Volvo workshop is recommended.
Windscreen sensor Sensor blocked, see Owner's manualThe ability of the camera to scan the roadway in front of the car is reduced.
Related information
•Run-off Mitigation (p. 360)

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Messages for Park Assist *
A number of messages regarding Park Assist can be shown in the driver display.The following table shows some examples.
Message Specification
Park Assist System Unavailable Service requiredThe system does not function as it should. A workshop should be contacted - an authorised Volvo workshop is recommended.
Park Assist System Sensors blocked, cleaning neededOne or more of the system's sensors are blocked - check and correct as soon as possible.
Related information
•Park Assist
* (p. 363)
• Activating/deactivating Parking assistance
*
(p. 365)
• Limitations of Parking assistance
* (p. 365)

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Limitations of Park Assist Pilot *
The Active parking assistance (Park Assist Pilot – PAP) function may have limitations in certainsituations.
Parking is discontinuedA parking sequence will be discontinued:
• if the driver moves the steering wheel
• if the car is driven too quickly - above 7 km/h (4 mph)
• if the driver presses
Cancel in the centre
display
• when the anti-lock brakes or the Electronic stability control are engaged - e.g. when awheel loses grip on a slippery road.
Where applicable, a message in the centre dis-play states the reason for a parking sequencebeing discontinued.
NOTE
Dirt, ice and snow covering the sensors will reduce their function and may prevent meas-urement.
IMPORTANT
Under certain circumstances, PAP is unable to find parking spaces - one reason for thismay be the fact that there is interference withthe sensors from external sound sourceswhich emit the same ultrasound frequenciesas those with which the system works. Examples of such sources include horns, wet tyres on asphalt, pneumatic brakes andexhaust noises from motorcycles etc.
Driver responsibilityThe driver should bear in mind that the PAP is an aid – not an infallible, fully-automatic function.The driver must therefore be prepared to inter-rupt a parking step. There are also a few details to bear in mind while parking, e.g.:
• PAP bases itself on the locations of vehiclesalready parked nearby - if they are inap-propriately parked, your own car's tyres andwheel rims may be damaged by contact withthe kerb.
• PAP is designed for parking on straightstreets - not sharp curves or bends. For thisreason, make sure the car is parallel to theparking space when PAP measures thespace. •
Parking spaces on narrow streets are notalways feasible, since the space required formanoeuvring may not be sufficient.
• Bear in mind that the front of the car mayswing out towards oncoming traffic whilebeing parked.
• Objects situated higher than the detectionareas of the sensors are not taken intoaccount when calculating the parkingmanoeuvre. This may cause PAP to turn intothe parking space too early, and hence suchparking spaces should be avoided.
• The driver is responsible for determiningwhether the space selected by PAP is suita-ble for parking.
• Use approved tyres 28
with the correct tyre
pressure - this affects the ability of PAP topark the car.
• Heavy rain or snow may cause the system tomeasure the parking space incorrectly.
• Do not use PAP if snow chains or a sparewheel are fitted.
• Do not use PAP if cargo items are protrudingfrom the car.
• Perpendicular parking spaces may be missedor offered unnecessarily if one parked car isprotruding more than other parked cars.
28
"Approved tyres" refers to tyres of the same type and make as those fitted new on delivery from the factory.