2017 VOLVO XC90 TWIN ENGINE HYBRID service

DRIVER SUPPORT
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Radar sensor limitations
The radar sensor used by several of the driversupport systems has certain limitations, whichalso affect the systems using it.

Obstructions
The marked area must not be obstructed in any way.This area of the windshield should always be kept clean
The radar sensor is located at the upper, centersection of the windshield along with the camera.
WARNING
Never place any objects, decals, electronic tolldevices, window tinting films etc., on the wind-shield in front of or around the camera/radarsensor. This could reduce or block these com-ponents' functions, and could cause one ormore of the systems that utilize them to stopfunctioning.
This can also result in certain functions beingreduced or disabled, or they may respondincorrectly.
If this symbol and the messageWindscreen Sensors blockedappear in the instrument panel, thisindicates that the camera and/or radarsensor cannot detect other vehicles ahead.
The following table shows some of the situationsthat can cause the message to be displayed andsuggested actions.
CauseAction
The area of the windshield in front of the camera/radar sensor is dirty or covered by iceor snow.Clean the windshield or remove the ice/ snow.
Thick fog or heavy rain/snow reduces the camera/radar sensor's range of visibility.No action. The driver should be extra alert in conditions of thistype.
Water or snow on the surface of the road swirl up and block radar signals or the camera'sview.No action. The driver should be extra alert in conditions of thistype.
There is dirt between the inside of the windshield and the camera/radar sensor.Have the area of the windshield cleaned by a trained and quali-fied Volvo service technician.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.321

CAUTION
•Service and maintenance on City Safetymay only be carried out by a trained andqualified Volvo service technician.
•If a crack, scratch or stone chip shouldoccur in the section of the windshield infront the camera/radar sensor, contact atrained and qualified Volvo service techni-cian to repair or replace the windshield.Failing to do so may result in reducedCity Safety functionality.
•This can also result in certain functionsbeing reduced or disabled, or they mayrespond incorrectly.
To help avoid the risk of incorrect, reduced ordisabled functionality for driver support sys-tems using the camera or radar sensors:
•Volvo recommends that cracks, scratchesor stone chips on the windshield in frontof the camera/radar sensor should notbe repaired; in such cases, the entirewindshield should be replaced.
•Before the windshield is replaced, con-tact a Volvo retailer to ensure that thecorrect windshield is ordered and instal-led. If the wrong type of windshield isused, this may cause City Safety to func-tion improperly or not at all.
•Volvo recommends the use of only Genu-ine Volvo Replacement Windshields.
•When replacing windshield wipers, usethe same type or ones approved by Volvo.
After the windshield has been replaced, thecamera/radar sensor will have to be recalibra-ted by a trained and qualified Volvo servicetechnician to help ensure proper function ofall of the vehicle's camera-/radar-based sys-tems.

Maintenance
In order for camera and radar sensor to functionproperly, the area of the windshield must be keptfree of dirt, ice, snow, etc. and should be washedregularly with a suitable car washing detergent.

NOTE
Dirt, ice and/or snow covering the cameraand radar sensors reduce functionality andmay disable the vehicle's camera-/radar-based systems.
This can also result in certain functions beingreduced or disabled, or they may respondincorrectly.

Related information
•Driver support system radar sensor (p. 318)
•Camera limitations (p. 323)
•Pilot Assist-1 limitations (p. 304)
•Pilot Assist-2 limitations (p. 315)
•City Safety limitations (p. 334)
•City Safety limitations (p. 334)
•Road Sign Information (RSI)* limitations(p. 348)
•Park Assist Pilot (PAP)* limitations (p. 372)

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CauseAction
There is dirt between the inside of the windshield and the camera/radar sensor.Have the area of the windshield cleaned by a trained and qualifiedVolvo service technician.
Strong backlightingNo action required. The came will reset automatically when lightingconditions improve.

High temperatures
If the temperature in the passenger compartmentis very high, the camera and radar sensor may betemporarily turned off for approx. 15 minutesafter the engine has been started to protect theirelectronic components. When the temperaturehas cooled sufficiently, the camera and radarsensor will restart automatically.

Damaged windshield CAUTION
•Service and maintenance on City Safetymay only be carried out by a trained andqualified Volvo service technician.
•If a crack, scratch or stone chip shouldoccur in the section of the windshield infront the camera/radar sensor, contact atrained and qualified Volvo service techni-cian to repair or replace the windshield.Failing to do so may result in reducedCity Safety functionality.
•This can also result in certain functionsbeing reduced or disabled, or they mayrespond incorrectly.
To help avoid the risk of incorrect, reduced ordisabled functionality for driver support sys-tems using the camera or radar sensors:
•Volvo recommends that cracks, scratchesor stone chips on the windshield in frontof the camera/radar sensor should not
be repaired; in such cases, the entirewindshield should be replaced.
•Before the windshield is replaced, con-tact a Volvo retailer to ensure that thecorrect windshield is ordered and instal-led. If the wrong type of windshield isused, this may cause City Safety to func-tion improperly or not at all.
•Volvo recommends the use of only Genu-ine Volvo Replacement Windshields.
•When replacing windshield wipers, usethe same type or ones approved by Volvo.
After the windshield has been replaced, thecamera/radar sensor will have to be recalibra-ted by a trained and qualified Volvo servicetechnician to help ensure proper function ofall of the vehicle's camera-/radar-based sys-tems.

Maintenance
In order for camera and radar sensor to functionproperly, the area of the windshield must be kept

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WARNING
Warnings will only be provided if there is animminent risk of a collision taking place. Thedriver should be aware of the system's limita-tions before operating the vehicle.
Warnings and automatic braking for pedes-trians and cyclists are deactivated at speedsabove approx. 43 mph (70 km/h).
City Safety's auto-brake function can helpprevent a collision or reduce the speed atwhich a collision occurs. However, the drivershould always apply the brakes, even if auto-brake is operating.
The driver is always responsible for maintain-ing the correct speed and distance in relationto the vehicle ahead. Never wait for a collisionwarning or for City Safety to intervene.
City Safety does not activate the auto-brakefunction during fast acceleration.
City Safety maintenance may only be carriedout by a trained and qualified Volvo servicetechnician.
Function overview
Audio-visual collision warning
Distance monitoring by a camera and radarsensor
When triggered, City Safety carries out threesteps in the following order:
1.Collision warning
2.Brake assistance
3.Auto-brake

1: Collision warning
The driver is first alerted to the risk of an immi-nent collision.
City Safety can detect pedestrians, cyclists orvehicles that are stationary, are moving in thesame direction as your vehicle or are in your vehi-cle's path.
City Safety can also detect pedestrians, large ani-mals or cyclists that are crossing in front of yourvehicle.
If there is a risk of a collision with a pedestrian,cyclist, large animal or a vehicle, as well as vehi-cles described in the article "City Safety in cross-ing traffic," the driver will be alerted by a flashingred warning signal, an audible signal and a hapticwarning in the form of pulsations in the brakepedal. At lower speeds, during hard braking or ifthe accelerator pedal is pressed, the haptic warn-ing will not be given.
2: Brake assistance
If the risk of a collision increases, brake supportwill be activated.
This function increases pressure on the brakepedal if the driver does not apply enough pres-sure to the pedal.

3: Auto-brake
The brakes will be applied automatically.
If the driver has not taken action at this stage anda collision is imminent, auto-braking will be trig-gered. Full braking effect will be used to avoidthe collision if possible or to make the speed atthe point of impact as low as possible.
In certain situations, auto-braking may begin withlimited effect before full braking is used.
If City Safety has prevented a collision, the vehi-cle will be kept at a standstill until the driver

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* Option/accessory, for more information, see Introduction.333
The following table shows some of the situationsthat can cause the message to be displayed andsuggested actions.
CauseAction
The area of the wind-shield in front of thecamera/radar sensor isdirty or covered by ice orsnow.
Clean the wind-shield or removethe ice/ snow.
Thick fog or heavy rain/snow blocks reduces thecamera/radar sensor'srange of visibility.
No action. Thedriver should beextra alert in condi-tions of this type.
There is dirt betweenthe inside of the wind-shield and the camera/radar sensor.
Have the area ofthe windshieldcleaned by atrained and quali-fied Volvo servicetechnician.

CAUTION
•Service and maintenance on City Safetymay only be carried out by a trained andqualified Volvo service technician.
•If a crack, scratch or stone chip shouldoccur in the section of the windshield infront the camera/radar sensor, contact atrained and qualified Volvo service techni-cian to repair or replace the windshield.Failing to do so may result in reducedCity Safety functionality.
•This can also result in certain functionsbeing reduced or disabled, or they mayrespond incorrectly.
To help avoid the risk of incorrect, reduced ordisabled functionality for driver support sys-tems using the camera or radar sensors:
•Volvo recommends that cracks, scratchesor stone chips on the windshield in frontof the camera/radar sensor should notbe repaired; in such cases, the entirewindshield should be replaced.
•Before the windshield is replaced, con-tact a Volvo retailer to ensure that thecorrect windshield is ordered and instal-led. If the wrong type of windshield isused, this may cause City Safety to func-tion improperly or not at all.
•Volvo recommends the use of only Genu-ine Volvo Replacement Windshields.
•When replacing windshield wipers, usethe same type or ones approved by Volvo.
After the windshield has been replaced, thecamera/radar sensor will have to be recalibra-ted by a trained and qualified Volvo servicetechnician to help ensure proper function ofall of the vehicle's camera-/radar-based sys-tems.

Maintenance
In order for City Safety to function properly, thearea of the windshield must be kept free of dirt,ice, snow, etc.

Other vehicle functions
If a message is displayed in the instrument panel,this means that the other systems using the cam-era/radar sensor (see the list below) will not havefull functionality or may not function at all.
The camera and radar sensor is used by the fol-lowing functions:
•Distance Alert*
•Driver Alert Control*
•Adaptive Cruise Control*
•Pilot Assist*
•Run-off Mitigation
•Road Sign Information*
•Active High Beams*
•Lane Keeping Aid*

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Camera and radar sensor's field of vision
The camera and radar sensor have limited fieldsof vision. In some situations they may detect avehicle, large animal, pedestrian or cyclist laterthan expected or not detect them at all.
Other vehicles that are dirty may be detectedlater than others and in dark conditions, motorcy-cles may be detected late or not at all.
If a text message is displayed in the instrumentpanel indicates that the camera or radar sensorare blocked, it may be difficult for City Safety todetect a vehicle, pedestrian or cyclist and thesystem's functionality may be reduced.

WARNING
Text messages may not be displayed in all sit-uations in which the camera and/or radarsensor are blocked. It is therefore essential tokeep the windshield in front the camera/radarsensor clean and free from snow, ice, etc.
Camera and radar sensor components shouldonly be serviced or replaced by a trained andqualified Volvo service technician.

Action by the driver
Backing up
City Safety is temporarily deactivated while thevehicle is backing up.

Low speed
City Safety is not activated at very low speeds(under approx. 3 mph (4 km/h). This means that
the system will not be triggered if your vehicleapproaches a vehicle ahead at very low speed,such as when parking.
Active driver
Action by the driver always has priority. For thisreason, City Safety may not react or react laterthan expected in situations in which the driver isactively operating the vehicle, even if a collision isimminent. This is also done to help eliminateexcessive warnings.

Other limitations
City Safety uses the vehicle's camera and radarsensor, which have certain general limitations.See the articles "Camera limitations" and "Radarsensor limitations" for additional information.
WARNING
•Warnings and braking may be delayed ornot occur at all if traffic, weather or otherconditions prevent the camera and/orradar sensor from detecting pedestrians,cyclists, large animals or other vehiclescorrectly.
•Other vehicles can only be detected indarkness if their headlights and taillightsare clearly visible.
•The sensors have a limited range forpedestrians and cyclists. The systemfunctions best at relative speeds up to30 mph (50 km/h). For stationary orslow-moving vehicles, the system func-tions best at speeds up to approx.43 mph (70 km/h).
•If there is a risk of colliding with a largeanimal, City Safety can reduce the vehi-cle's speed by up to 9 mph (15 km/h).Warnings and braking are most effectiveat speeds above 43 mph (70 km/h) andless effective at lower speeds.

WARNING
•Warnings for stationary or slow-movingvehicles and large animals may be impe-ded by darkness or poor visibility.
•Warnings and braking for pedestrians andcyclists will not be provided at speedsabove approx. 43 mph (70 km/h).

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City Safety symbols and messages
A number of City Safety-related messages maybe displayed in the instrument panel.
Several examples are provided in the following table:
MessageExplanation
City Safety
Automatic intervention
When City Safety is braking or has applied the brakes, one of more symbols may illuminate in the instrumentpanel and a text message will be displayed.
City Safety
Reduced functionality Service required
The system is not functioning properly. Contact a trained and authorized Volvo service technician.
A text message can be erased by briefly pressingthe O button on the right-side steering wheelkeypad. If the message recurs, contact a trainedand authorized Volvo service technician orretailer.

Related information
•City Safety™ (p. 326)

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* Option/accessory, for more information, see Introduction.341
Blind Spot Information (BLIS)*limitations
Blind Spot Information functionality may bereduced in certain situations.
•Dirt, ice and snow on the sensors mayreduce functionality and prevent the systemfrom providing warnings.
•Do not attach any objects, tape, decals, etc.,on the surface of the sensors.
•BLIS is deactivated if a trailer is attached tothe vehicle's electrical system.

Maintenance
The BLIS/CTA6 sensors are located on theinside of the rear fenders/bumper.
Keep the highlighted area clean (on both sides of thevehicle)
For the system to function optimally, the areaover and around the sensors must be kept clean.
CAUTION
Repairs to the BLIS/CTA systems and/orrepainting the rear bumper should only bedone by a trained and qualified Volvo servicetechnician.

Related information
•Blind Spot Information (BLIS)* On/Off(p. 340)
•Blind Spot Information (BLIS)* (p. 339)
•Cross Traffic Alert (CTA)* (p. 341)
Cross Traffic Alert (CTA)*
Cross Traffic Alert (CTA) is a supplementary partof Blind Spot Information and is intended todetect vehicles crossing behind your vehiclewhile you are backing up.
When does Cross Traffic Alert function
Principle for CTA
CTA supplements BLIS by warning the driver ofcrossing traffic behind your vehicle, for example,when backing out of a parking space.
It is primarily designed to detect another vehiclebut in certain cases may also detect pedestriansor smaller objects such as bicycles.
CTA is only activated when the vehicle is rollingrearward or backing up and is activated automati-cally when the gear selector is put in reverse.
6Cross Traffic Alert*