sensor VOLVO XC90 2015 Repair Manual

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
294
Park Assist limitations
The Park Assist system has certain limitations.
NOTE
A trailer hitch whose wiring is integrated with the vehicle's electrical system will be includedin the measurement of the available spacebehind the vehicle.
NOTE
• The system will not detect high objects, such as a loading dock, etc.
• Objects such as chains, thin shiny polesor low objects may temporarily not bedetected by the system. This may resultin the pulsing tone unexpectedly stoppinginstead of changing to a constant tone asthe vehicle approaches the object. Insuch cases, use caution when backing upor stop the vehicle to help avoid damage.
• In certain circumstances, the park assistsystem may give unexpected warning sig-nals that can be caused by externalsound sources that use the same ultra-sound frequencies as the system. Thismay include such things as the horns ofother vehicles, wet tires on asphalt, pneu-matic brakes, motorcycle exhaust pipes,etc. This does not indicate a fault in thesystem.
Cleaning the sensors
Location of the Park Assist sensors
The sensors must be cleaned regularly to ensure that they work properly. Clean them with waterand a suitable car washing detergent.
NOTE
If the sensors are obstructed by e.g., dirt, snow, or ice, this could result in false warningsignals from the park assist system.
Related information
•
Park Assist
* (p. 292)
• Activating/deactivating Park Assist (p. 293)
• Park assist symbols and messages (p. 295)

DRIVER SUPPORT
295
Park assist symbols and messages
A number of symbols and messages relating to
Park Assist will appear in the instrument panel.The following table provides some examples.
SymbolMessageExplanation
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. 294)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.299
Guiding lines for a trailer hitch (towbar)
Towbar: activate guiding lines for a trailer
hitch
Zoom: zoom in/out 6
The camera can help make hitching a trailer eas- ier by showing the "line" that the trailer hitch willtake toward the trailer. 1. Tap
Towbar (2).
> The guiding lines will be displayed and the guiding lines for the vehicle will disappear.
2. Tap
Zoom (5) for a close-up view.
> The camera will zoom in.
Guiding lines for the trailer hitch and the vehicle cannot be shown at the same time.
Front and rear sensor fields
Front and rear sensors
If the vehicle is also equipped with the optional Park Assist system, distance will also be indi-cated by colored fields for each sensor that hasdetected an object. The front and rear fields change colors (yellow- orange-red) as the vehicle moves closer to anobject.
Front/rear field colorsDistance to the object
Yellow2–4.9 ft (06.–1.5 m )
Orange1.3–2 ft (0.4–0.6 m)
Red0–1.3 ft (0–0.4 m)
Side sensors
The side fields will only be shown in 360° viewand the color will only be orange.
Side field colorDistance to the object
Orange0–1 ft (0–0.3 m)
Related information
• Park Assist Camera (PAC)
* (p. 296)
• Starting the Park Assist Camera (PAC)
*
(p. 300)
6 Only models with a trailer hitch.

DRIVER SUPPORT
304When the vehicle is backing up, PAP will steer it into the parking space. Do as follows:
1. Check that the area behind the vehicle is
clear and put the gear selector in R.
2. Back up slowly without moving the steering wheel. The vehicle's speed must be below approximately 4 mph 7 km/h.
3. Keep an eye on the instrument panel and be prepared to stop the vehicle when you areinstructed by PAP to do so.
NOTE
• Release the wheel while PAP is steering the vehicle.
• The steering wheel must be able to turnfreely.
• For PAP to function optimally, wait untilthe steering wheel is no longer turningbefore beginning the next phase of theparking procedure.
3: Adjusting the vehicle's position
Parallel
Perpendicular
After the vehicle has backed into the parking space, its position in the space has to be adjusted by driving slightly forward and backingup. 1.
Put the gear selector in D, wait until the
steering wheel has turned and drive forward slowly.
2. Stop the vehicle when you are instructed by PAP to do so.
3. Put the gear selector in R, back up slowly
and stop when you are instructed by PAP todo so.
When the parking procedure is finished (this will be indicated by a text message and a graphicimage), PAP switches off automatically. If neces-sary, the driver may need to make minor adjust-ments to ensure that the vehicle is parked cor-rectly.
CAUTION
The warning distance is shorter when PAP is using the sensors than when Park Assist isusing them.
Leaving a parking spaceThis function can only be used for a vehicle that has been par-allel parked and is activated inthe center display's Functionview. 1. Tap the
Park out button in
the center display's Function view.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
306 •
Do not use PAP if snow chains or a tempo- rary spare tire are being used.
• 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. 301)
• Park Assist Pilot (PAP)
* limitations (p. 305)
• Park Assist Pilot (PAP)
* symbols and mes-
sages (p. 307)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.307
Park Assist Pilot (PAP)* symbols
and messages
Park Assist Pilot uses symbols, graphics and text messages to indicate if there is a problemwith the system.Various PAP-related combinations of symbols, graphics and text messages are displayed in theinstrument panel and sometimes also includesuitable actions. The following table provides some examples.
SymbolMessageExplanation
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. 301)
• Using Park Assist Pilot (PAP)
* (p. 302)
• Park Assist Pilot (PAP)
* limitations (p. 305)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.315
Different time intervals to the vehicle ahead can be selectedand are shown in the instru-ment panel as 1–5 horizontalbars. The greater the number ofbars, the longer the time inter-val.
One bar between the vehicles represents a timeinterval of approximately 1 second; 5 bars isapproximately 3 seconds. The same symbol appears if Adaptive Cruise Control is activated.
NOTE
• The greater the vehicles' speed, the greater the
distance between them for a
set time interval.
• The set time interval is also used by Adaptive Cruise Control
*.
• Only use time intervals permitted by local traffic regulations.
Related information
•
Distance Alert
* (p. 314)
Distance Alert * limitations
Distance Alert uses the same radar sensor as Adaptive Cruise Control * and has several limita-
tions.
WARNING
• The radar sensor has a limited field of vision. In some situations it may detect avehicle later than expected or not detectother vehicles at all.
• The radar sensor cannot cover all drivingsituations and traffic, weather and roadconditions.
• The driver is responsible for maintaining asafe distance and speed and must inter-vene if the various driver support systemsdo not maintain a suitable speed or suita-ble distance to the vehicle ahead.
• Maintenance of radar sensor componentsmay only be performed by a trained andqualified Volvo technician.
• Strong sunlight, reflections from the roadsurface, strong lighting contrasts or usingsunglasses may make the warning light inthe windshield difficult to see.
For additional information, see also the article "Radar sensor limitations."
Related information
• Radar sensor limitations (p. 245)
• Distance Alert
* (p. 314)
Blind Spot Information (BLIS) *
Blind Spot Information is a system designed to alert the driver to the presence of other vehiclesmoving in the same direction as your vehicle onroads with several lanes.
Blind Spot Information is a driving aid intended to:
• detect other vehicles in your door mirrors' "blind area"
• detect vehicles that are about to pass yourvehicle or are approaching your vehiclequickly from behind in the left and/or rightlanes
WARNING
•
Blind Spot Information is an information system, NOT a warning or safety systemand does not function in all situations.
• Blind Spot Information does not eliminatethe need for you to visually confirm theconditions around you, and the need foryou to turn your head and shoulders tomake sure that you can safely changelanes or back up.
• As the driver, you have full responsibilityfor changing lanes/backing up in a safemanner.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.317
Blind Spot Information (BLIS)*
On/Off The Blind Spot Information function can be acti- vated/deactivated.
Blind Spot Information indicators
Indicator light
Blind Spot Information symbol
Blind Spot Information can be activated/deacti- vated in the center display's Function view.
–In Function view, tap BLIS.
> When Blind Spot Information is activated/ deactivated, the indicator light in the but- ton will be green/gray.
If BLIS is activated when the engine is started,the indicator lights in the door mirrors will flashonce. If BLIS is deactivated when the engine isswitched off, it will remain off the next time theengine is started and the indicator lights in thedoor mirrors will not illuminate.
Related information
•
Blind Spot Information (BLIS)
* (p. 315)
Blind Spot Information (BLIS) *
limitations
Blind Spot Information functionality may be reduced in certain situations.
• Dirt, ice and snow on the sensors may reduce 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.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
318
Maintenance
The BLIS/CTA 8
sensors are located on the
inside of the rear fenders/bumper.
Keep the highlighted area clean (on both sides of the vehicle)
For the system to function optimally, the area over and around the sensors must be kept clean. If one or both of the sensors are blocked and "
Rear sensors blocked, cleaning needed" is
displayed in the instrument panel, clean the area over and around the sensors as soon as possible. A text message can be erased by briefly pressing the O button on the right-side steering wheel
keypad.
CAUTION
Repairs to the BLIS/CTA systems and/or repainting the rear bumper should only bedone by a trained and qualified Volvo servicetechnician.
Related information
• Blind Spot Information (BLIS)
* On/Off
(p. 317)
• Blind Spot Information (BLIS)
* (p. 315)
• Cross Traffic Alert (CTA)
* (p. 318)
Cross Traffic Alert (CTA) *
Cross Traffic Alert (CTA) is a supplementary part of 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 of crossing traffic behind your vehicle, for example,when backing out of a parking space. It is primarily designed to detect another vehicle but in certain cases may also detect pedestriansor smaller objects such as bicycles. CTA is only activated when the vehicle is rolling rearward or backing up and is activated automati-cally when the gear selector is put in reverse.
8 Cross Traffic Alert *

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
320
Cross Traffic Alert (CTA) * limitations
CTA functionality may be reduced in certain sit- uations.
LimitationsCTA has limitations in certain situations, for example, the CTA sensors cannot "see" throughother parked vehicles or obstructions. The following are several examples where CTA's "field of vision" may initially be limited andapproaching vehicles cannot be detected untilthey are too close:
The vehicle is pulled far into a parking space
In angled parking spaces, CTA may be "blind" on one side
CTA's blind area
CTA's "field of vision"
However, as you back your vehicle out of a park- ing space, CTA's "field of vision" expands. Examples of other limitations include:
• Dirt, ice or snow obstructing the sensors may reduce the system's function or make itimpossible to detect other vehicles orobjects.
• CTA is deactivated if a trailer's wiring is con-nected to the vehicle's electrical system.
MaintenanceThe CTA sensors are located on the inside of the rear fenders/bumper.
Keep the highlighted area clean (on both sides of the vehicle)
For the system to function optimally, the area over and around the sensors must be kept clean. Do not attach any objects, tape, decals, etc., on the surface of the sensors.
CAUTION
Repairs to the BLIS/CTA systems and/or repainting the rear bumper should only bedone by a trained and qualified Volvo servicetechnician.
Related information
•
Cross Traffic Alert (CTA)
* (p. 318)
• Activating/deactivating Cross Traffic Alert (CTA)
* (p. 319)