2018 VOLVO S90 maintenance

DRIVER SUPPORT
* Option/accessory.
320
Camera
The camera is used by several driver support systems to e.g. detect lane marker lines or roadsigns.
Note: This illustration is general and details may vary depending on model.
The camera is used by the following functions:
• Adaptive Cruise Control
*
• Pilot Assist
*
• Lane Keeping Aid
*
• Steering assistance at risk of collision
• City Safety
• Driver Alert Control
*
• Road Sign Information
*
• Active high beams
*
Related information
•Camera limitations (p. 321)
• Recommended maintenance for the camera/ radar sensor (p. 324)

DRIVER SUPPORT
324
Recommended maintenance for thecamera/radar sensor
In order for the camera/radar sensor to function properly, 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 and radar 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. 320)
City Safety
™
City Safety can alert the driver with light, sound and 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 sensor 71
.
City Safety can help prevent a collision or lower the vehicle's speed at the point of impact. City Safety is an aid intended to assist the driver if a collision with a pedestrian, large animal,cyclist or vehicle is imminent. City Safety can help the driver avoid a collision when 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 automatically applying 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 an attempt to stop your vehicle immediately behindthe vehicle or object ahead. City Safety is activated in situations in which the driver 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 as possible to help avoid unnecessary intervention. Normally, the occupants of the vehicle will not be aware of City Safety except when the systemintervenes when a collision is imminent.
71
Note: This illustration is general and details may vary depending on model.

DRIVER SUPPORT
}}
333
City Safety limitations
City Safety functionality may be reduced in cer- tain situations.
Surroundings
Low objects
Hanging objects, such as flags for overhanging loads 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 roads may reduce City Safety's capacity to help avoid acollision. In these types of situations, the Anti-lock Braking System and Electronic Stability Con- trol (ESC 73
) will help provide optimal braking
power with maintained stability.
Backlighting
The visual warning signal in the windshield may be 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 compartment is 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 than clean vehicles, and in dark conditions, motorcy-cles may be detected late or not at all. If a text message displayed in the instrument panel 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 Safety components may only be performed by aworkshop – an authorized Volvo workshop isrecommended.
Driver intervention
Backing up
City Safety is temporarily deactivated when the vehicle is backing up.
Low speed
City Safety is not activated at very low speeds under 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. City Safety 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 therefore delay collision warnings and intervention in order to minimize unnecessary warnings.
73 Electronic Stability Control

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DRIVER SUPPORT
338given, the indicator light will become brighter and begin flashing.
NOTE
The light illuminates on the side of the vehicle where the system has detected the vehicle. Ifthe vehicle is passed on both sides simulta-neously, both lights come on.
WARNING
•
The BLIS function is supplementary driver support intended to facilitate driving andhelp make it safer – it cannot handle allsituations in all traffic, weather and roadconditions.
• The responsibility for changing lanessafely and using good judgment alwaysrests with the driver.
• BLIS is not a substitute for the driver'sattention 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.
Related information
• Activating/deactivating BLIS (p. 338)
• BLIS limitations (p. 339) •
Recommended maintenance for BLIS(p. 340)
• BLIS messages (p. 341)
Activating/deactivating BLIS The BLIS 76
function can be activated/deacti-
vated.
Location of BLIS indicator light. 77
Indicator light
The BLIS button in the center display's Func- tion view is used to activate/deactivate thefunction.
–Tap the BLIS button in Function view.
> The BLIS indicator light shows the status of the function: GREEN (on) or GRAY (off).
If BLIS is activated when the engine is started,the indicator lights in the rearview mirrors willflash once. If BLIS is deactivated when the engine is turned off, it will remain off the next time the engine isstarted and the indicator lights will not illuminate.

DRIVER SUPPORT
* Option/accessory.
340
Recommended maintenance forBLIS
• For optimal performance, it is important to keep the areas in front of the sensors clean.
• Do not attach any objects, tape or decals tothe surface of the sensors.
Keep this area clean (on both the left and right sides of the vehicle) 80
.
The BLIS sensors are located on the inside of each of the rear fenders/bumpers and are alsoused by the Cross Traffic Alert (CTA) and RearCollision Warning functions.
CAUTION
Repair of BLIS and CTA components or repainting of the bumper may only be per-formed by a workshop – an authorized Volvoworkshop is recommended.
Related information
• BLIS
* (p. 337)
• Cross Traffic Alert
* (p. 342)
• Activating/deactivating Cross Traffic Alert (p. 343)
• Cross Traffic Alert limitations (p. 343)
• Recommended maintenance for CrossTraffic Alert (p. 344)
• Cross Traffic Alert messages (p. 345)
• Rear Collision Warning (p. 336)
80
Note: This illustration is general and details may vary depending on model.

DRIVER SUPPORT
* Option/accessory.
342
Cross Traffic Alert *
CTA 82
is a supplementary driver support system
to BLIS 83
that is intended to help the driver
detect vehicles crossing behind the vehicle while backing up.
CTA overview.
CTA supplements BLIS by detecting traffic cross- ing from the side, e.g. when backing out of aparking space. CTA is primarily designed to detect vehicles, but in certain cases can also detect pedestrians orsmaller objects such as bicycles. CTA is only active when the vehicle is moving backward or if reverse gear is engaged. If CTA detects that something is approachingyour vehicle from the side:
• an audible signal will sound from either theleft or right speaker, depending on whichside of your vehicle the object is approachingfrom.
• an icon will illuminate in the PAS 84
graphic
on the screen.
• an icon will appear in the Park Assist Cam-era's Top view.
Illuminated CTA icon in the PAS 84
graphic 85
on the
screen.
WARNING
• The Cross Traffic Alert function is supple- mentary driver support intended to facili-tate driving and make it safer – it cannothandle all situations in all traffic, weatherand road conditions.
• The responsibility for reversing the vehiclesafely and using good judgment alwaysrests with the driver.
• Cross Traffic Alert is not a substitute forthe driver's attention and judgment. Thedriver is always responsible for ensuringthe vehicle is driven in a safe manner, atthe appropriate speed, with an appropri-ate distance to other vehicles, and inaccordance with current traffic rules andregulations.
Related information
•
Activating/deactivating Cross Traffic Alert(p. 343)
• Cross Traffic Alert limitations (p. 343)
• Recommended maintenance for CrossTraffic Alert (p. 344)
• Cross Traffic Alert messages (p. 345)
82
Cross Traffic Alert
83 Blind Spot Information
84 Park Assist System: Parking assistance with reversing sensors
85 Note: This illustration is general and details may vary depending on model.

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DRIVER SUPPORT
* Option/accessory.
344
Examples of further limitations
• Dirt, ice and snow covering the sensors may reduce functionality and prevent the systemfrom providing warnings. For additional infor-mation, see the section "Recommendedmaintenance for Cross Traffic Alert".
• CTA is automatically deactivated if a trailer,bicycle holder or similar is connected to thevehicle's electrical system.
• For CTA to function optimally, bicycle hold-ers, luggage racks or similar should not bemounted on the vehicle's towbar.
Related information
•
Cross Traffic Alert
* (p. 342)
Recommended maintenance forCross Traffic Alert
• For optimal performance, it is important to keep the areas in front of the sensors clean.
• Do not attach any objects, tape or decals tothe surface of the sensors.
Keep this area clean (on both the left and right sides of the vehicle) 88
.
The CTA sensors are located on the inside of each of the rear fenders/bumpers and are also used by the BLIS 89
and Rear Collision Warning
functions.
CAUTION
Repair of BLIS and CTA components or repainting of the bumper may only be per-formed by a workshop – an authorized Volvoworkshop is recommended.
Related information
• Cross Traffic Alert
* (p. 342)
• BLIS
* (p. 337)
• Rear Collision Warning (p. 336)
88
Note: This illustration is general and details may vary depending on model.
89 Blind Spot Information

DRIVER SUPPORT
* Option/accessory.
370
Park Assist *
The Park Assist function can help the driver
when maneuvering in tight spaces by indicating distances to obstacles using audible signals andgraphics in the center display.
Display view showing obstacle zones and sensor sec- tors.
The center display shows an overview of the vehi- cle in relation to objects that have been detected. The marked sector indicates where the obstacle is located. The closer the vehicle symbol is to amarked sector, the closer the detected obstacleis to your vehicle. The audible signals will also speed up the closer the obstacle is to the vehicle. The volume of theaudio system will be automatically lowered. Audible signals for obstacles in front and to the sides of the vehicle are active when the vehicle is moving but will cease after the vehicle has beenstationary for approx. 2 seconds. Audible signalsfor obstacles behind the vehicle will remain activeeven when the vehicle is stationary. If a detected obstacle is within 30 cm (1 ft) from the front or rear of the vehicle, the tone willbecome constant and the active sensor's fieldclosest to the vehicle symbol will be filled in. The volume of the Park Assist audible signals can be adjusted while the signal is being given using the
>II knob or in the center display's Top
view under
Settings.
NOTE
• Acoustic warnings are only given for objects directly in front of the vehicle'spath.
WARNING
•The Parking Assist function is supple- mentary driver support intended to facili-tate driving and help make it safer – itcannot handle all situations in all traffic,weather and road conditions.
• The parking sensors have dead/blindspots where objects cannot be detected.
• Pay particular attention to people andanimals near the vehicle.
• Parking Assist 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.
Related information
•Park Assist front, rear and sides (p. 371)
• Activating/deactivating Park Assist (p. 372)
• Park Assist limitations (p. 372)
• Recommended maintenance for Park Assist(p. 373)
• Park Assist symbols and messages (p. 374)