service VOLVO XC90 T8 2016 Owner´s Manual

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.285
Adaptive Cruise Control (ACC) - fault tracing
If this symbol is displayed in the instru- ment panel and the message
Windscreen sensor Sensor
blocked, see Owner's manual
appears, the ACC radar sensor is blocked and cannot detect vehicles ahead.
This message also indicates that the following systems may have reduced functionality:
• Distance Alert
• City Safety
• Driver Alert Control
• Pilot Assist
• Lane Departure Warning (LDW) •
Lane Keeping Aid (LKA)
• Traffic Sign Information (TSI)
The following table lists possible causes for thismessage being displayed and suitable actions:
CauseAction
The windshield in front of the radar is dirty or covered with snow/ice.Clean/clear the windshield in front of the radar.
Heavy rain or snow is interfering with the radar signals.No action possible. Heavy precipitation may affect the function of the radar.
Swirling water or snow from the surface of the road may interfere with the radar signals.No action possible. A very wet or snow-covered road surface may affect the function of the radar.
The windshield in front of the radar is clean but the message remains in the display.Wait a short time. It may take several minutes for the radar to detect that it is no longer obstructed.
A text message can be erased by briefly pressing the O button on the right-side steering wheel
keypad. If the message recurs, contact a trained and authorized Volvo service technician orretailer.
Related information
• Adaptive Cruise Control (ACC)
* (p. 266)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
286
Adaptive Cruise Control (ACC) symbols and messages In certain cases, ACC will display symbols (in different colors) and text messages.The following table lists several ACC-related symbols and messages.
SymbolMessageExplanation
WHITE symbolACC is in active mode and maintaining the set speed.
GRAY symbol and UnavailableACC is in standby mode.
Adaptive cruise Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo Service tech- nician.
Windscreen sensor Sensor blocked, see
Owner's manualClean the windshield in front of the camera/radar sensor.
Related information
• Adaptive Cruise Control (ACC)
* (p. 266)

||
DRIVER SUPPORT
288
WARNING
Warnings will only be provided if there is an imminent 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 50 mph (80 km/h). City Safety's auto-brake function can help prevent 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-brake function during fast acceleration. City Safety maintenance may only be carried out by a trained and qualified Volvo servicetechnician.
Function overview
Audio-visual collision warning
Distance monitoring by a camera and radar sensor
When triggered, City Safety carries out threesteps in the following order: 1. Collision warning
2. Brake assistance
3. Auto-brake
1: Collision warningThe driver is first alerted to the risk of an immi- nent collision. City Safety can detect pedestrians, cyclists or vehicles that are stationary, are moving in thesame direction as your vehicle or are described inthe article "City Safety in crossing traffic." Thedriver is alerted by a flashing red warning signal, an audible signal and pulsations in the brakepedal.
2: Brake assistanceIf the risk of a collision increases, brake supportwill be activated. This function increases pressure on the brake pedal if the driver does not apply enough pres-sure to the pedal.
3: Auto-brakeThe brakes will be applied automatically. If the driver has not taken action at this stage and a 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 with limited effect before full braking is used. If City Safety has prevented a collision, the vehi- cle will be kept at a standstill until the drivertakes action. If the vehicle has slowed to avoidcolliding with the vehicle ahead, your speed willbe reduced to that vehicle's speed. When auto-break is triggered, the seat belt pre- tensioners may also be activated, see the article"Seat belts" for additional information. Auto-braking can be cancelled if the driver presses hard on the accelerator pedal.

||
DRIVER SUPPORT
294
Camera and radar sensor's field of vision
The camera and radar sensor have limited fields of vision. In some situations they may detect avehicle, pedestrian or cyclist later than expectedor not detect them at all. Other vehicles that are dirty may be detected later than others and in dark conditions, motorcy-cles may be detected late or not at all. If a text message is displayed in the instrument panel 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 should only be serviced or replaced by a trained andqualified Volvo service technician.
Other limitations
City Safety uses the vehicle's camera and radar sensor, which have certain general limitations.See the articles "Camera limitations" and Radarsensor limitations" for additional information.
WARNING
• Warnings and braking may be delayed or not occur at all if traffic, weather or otherconditions prevent the camera and/orradar sensor from detecting pedestrians,cyclists or other vehicles correctly.
• 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 speeds up to 30 mph(50 km/h). For stationary or slow-movingvehicles, the system functions best atspeeds up to approx. 43 mph (70 km/h).
• Warnings for stationary or slow-movingvehicles may be impeded by darkness orpoor visibility.
• Warnings and braking for pedestrians andcyclists will not be provided at speedsabove approx. 50 mph (80 km/h).
• Do not place, attach or mount any objectson the inside or outside of the windshieldnear or over the sensor. This could affectthe camera-based functions.
Action by the driver
Backing up
City Safety is temporarily deactivated while the vehicle is backing up.
Low speed
City Safety is not activated at very low speeds (under approx. 3 mph (4 km/h). This means thatthe system will not be triggered if your vehicleapproaches a vehicle ahead, such as when park-ing.
Active driver
Action by the driver always has priority. For this reason, 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.
Related information
•
City Safety
™ (p. 287)
• Adaptive Cruise Control (ACC) - fault tracing (p. 285)
• City Safety
™ troubleshooting (p. 295)
• Camera limitations (p. 254)
• Radar sensor limitations (p. 258)

DRIVER SUPPORT
}}}}
295
City Safety™ troubleshooting
Messages pertaining to any possible problems with City Safety will be displayed in the instru-ment panel.
Troubleshooting and remedial action
Location of the camera and the radar sensor
If a message is displayed in the instrument panel saying that the camera/radar sensor is blocked,
City Safety cannot detect vehicles, cyclists orpedestrians ahead of you, which means that thesystem is not functioning properly. However, this message will not be displayed in all situations in which the camera/radar sensor isobstructed. For this reason, the driver mustensure that the area of the windshield in front ofthe camera/radar sensor is always kept clean. 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. The driver should beextra alert in condi-tions of this type.
There is dirt between the inside of the wind-shield and the camera/radar sensor.Have the area of the windshieldcleaned by atrained and quali-fied Volvo servicetechnician.
CAUTION
•
Service and maintenance on City Safety may 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.
To help prevent limited or reduced functional- ity, please also observe the following:
• Volvo recommends that cracks, scratches or stone chips on the windshield in front of the camera/radar sensor should
not
be repaired; in such cases, the entire windshield 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.

||
DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
296
After the windshield has been replaced, the camera/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.
MaintenanceIn order for City Safety to function properly, the area of the windshield must be kept free of dirt,ice, snow, etc.
Other vehicle functionsIf 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 radar sensor is used by the following func- tions:
• Distance Alert
*
• Driver Alert Control
*
• Adaptive Cruise Control
*
• Pilot Assist
*
• Road Sign Information
*
• Active High Beams
*
• Lane Keeping Aid
*
Do not mount or in any way attach anything onthe windshield that could obstruct the camera/radar sensor.
WARNING
• The camera has the same type of limita- tions as the human eye, i.e., it cannot seeas well in heavy snowfall or rain, thick fogor in heavy blowing dust or snow. In suchconditions, systems depending on thecamera may experience greatly reducedfunctionality or may be temporarily deacti-vated.
• Never place any objects, decals, etc., onthe windshield in front of the camera. Thiscould reduce or block the camera

DRIVER SUPPORT
297
City Safety symbols and messages
A number of City Safety-related messages may be displayed in the instrument panel.
MessageExplanation
City Safety Automatic interventionWhen City Safety is braking or has applied the brakes, one of more symbols may illuminate in the instrument panel and a text message will be displayed.
City Safety Reduced functionality Service requiredThe system is not functioning properly. Contact a trained and authorized Volvo service technician.
Related information
• City Safety
™ (p. 287)

DRIVER SUPPORT
310
Park assist symbols and messages
A number of messages relating to Park Assist will appear in the instrument panel.The following table provides some examples.
MessageExplanation
Park Assist System Unavailable Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo service technician.
Park Assist System Sensors blocked, cleaning neededOne or more of the system's sensors are blocked. Check and clean the sensors as soon as possible.
Related information
• Park Assist limitations (p. 308)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.321
Points to keep in mindPAP is a parking aid only and the driver should always be prepared to take control and cancel aparking sequence. This can be due to one ormore of the following factors:
• PAP's function is based on the way that the vehicles are parked behind and in front ofyour parking space. If they are, for example,parked too close to the curb, there is a riskthat your vehicle's tires or wheel rims couldbe damaged by the curb during the parkingprocedure.
• PAP is intended to provide parking assis-tance on straight streets, not sections ofstreet with curved or irregular curbs. Be surethat your vehicle is parallel to the curb whenPAP measures the parking space.
• PAP may not be able to provide parkingassistance on narrow streets due to lack ofspace to maneuver the vehicle. In situationslike this, it may help to drive between 1.5-5 ft(0.5-1.5 m) from the side of the road wherethe parking space is located.
• Use only approved tires with the correct infla-tion pressure because this affects PAP'scapacity to provide parking assistance.Changing to a different approved tire sizemay affect PAP's parameters. Consult atrained and qualified Volvo service technician.
• Heavy rain or snow may inhibit PAP'scapacity to correctly measure a parkingspace. •
Do not use PAP when using snow chainsand/or a temporary spare tire.
• Do not use PAP if there are any objects pro-truding from the vehicle.
WARNING
• The front end of your vehicle may turn out toward oncoming traffic during the park-ing procedure.
• Objects located above the parking sen-sors' field of vision are not included whenPAP measures a parking space. For thisreason, PAP may turn into the parkingspace too soon. Avoid parking spaces ofthis type.
• The driver is always responsible for deter-mining if PAP has selected a suitableparking space.
Maintenance
Location of the PAP sensors
PAP uses the same sensors as the Park Assist system. To function correctly, these sensors mustbe cleaned regularly with water and a suitable carwashing detergent.
Related information
•
Park Assist Pilot (PAP)
* (p. 316)
• Park Assist Pilot (PAP)
* limitations (p. 320)
• Park Assist Pilot (PAP)
* symbols and mes-
sages (p. 322)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
322
Park Assist Pilot (PAP) * symbols
and messages
Park Assist Pilot uses graphics and text mes- sages to indicate if there is a problem with thesystem.Various PAP-related combinations of graphics and text messages are displayed in the instru-ment panel and sometimes also include suitableactions. The following table provides some examples.
MessageExplanation
Park Assist System Unavailable Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo service technician.
Park Assist System Sensors blocked, cleaning neededOne or more of the system's sensors are blocked. Check and clean the sensors as soon as possible.
A text message can be erased by briefly pressing the
O button in the center of the right-side steer-
ing wheel keypad. Contact a Volvo retailer or a trained and qualified Volvo service technician If a message indicatingthat PAP is not functioning properly remains dis-played or recurs.
Related information
• Park Assist Pilot (PAP)
* (p. 316)
• Using Park Assist Pilot (PAP)
* (p. 318)
• Park Assist Pilot (PAP)
* limitations (p. 320)