sensor VOLVO V90 CROSS COUNTRY 2021 Repair Manual
Page 345 of 683
DRIVER SUPPORT
343
WARNING
The City Safety auto-brake function can prevent a collision or reduce colli-sion speed, but to ensure full brakeperformance the driver should alwaysdepress the brake pedal – even whenthe car auto-brakes.
The warning and steering assistanceare only activated if there is a high riskof collision – you must therefore neverwait for the collision warning or CitySafety to intervene.
Warnings and brake interventions forpedestrians and cyclists are disen-gaged at vehicle speeds over 80 km/h(50 mph).
City Safety does not activate auto-braking intervention during heavyacceleration.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Market limitationsCity Safety is not available in all countries. If City Safety is not shown in the center display's
Settings menu, your vehicle is not equipped
with this function. In the center display's Top view, tap:
SettingsMy CarIntelliSafe
Related information
City Safety
™ (p. 331)
Camera/radar sensor limitations (p. 390)
Page 351 of 683
DRIVER SUPPORT
* Option/accessory.349
Steering assistance during collision risks limitations
The function may have limited functionality in certain situations and not intervene, e.g.:
for smaller vehicles such as motorcycles
if more than half of your vehicle has moved into the adjacent lane
on roads/lanes with indistinct or no sidelane markings
outside the speed range 60-140 km/h(37-87 mph)
when speed-dependent power steeringwheel resistance is working at reducedpower – e.g. during cooling due to over-heating.
Functionality may also be reduced in other sit-uations, such as: road work
winter driving conditions
narrow roads
poor road surfaces
a very sporty driving style
bad weather with reduced visibility.
In these demanding driving conditions, the function may not be able to properly assist thedriver. In these situations, it is recommendedthat it is turned off.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information
Steering assistance at risk of collision (p. 345)
Run-Off Mitigation with steering assis-tance (p. 346)
Steering assistance during collision risksfrom oncoming traffic (p. 347)
Steering assistance during collision risks from behind
* (p. 348)
Page 352 of 683
DRIVER SUPPORT
350
Symbols and messages for steering assistance during collisionrisks
A number of symbols and messages related to steering assistance may be displayed in the instrument panel. Several examples areprovided below.
Symbol Message
Meaning
Collision avoidance Automatic interventionWhen the function is activated, a message will appear to alert the driver.
Windscreen sensor Sensor blocked, see Owner's manualThe camera's ability to detect the lane in front of the vehicle is reduced.
A text message can be erased by briefly press- ing the
button in the center of the right-
side steering wheel keypad. If the message persists: Contact a workshop ‒
an authorized Volvo workshop is recom- mended.
Related information
Steering assistance at risk of collision(p. 345)
Steering assistance during collision riskslimitations (p. 349)
Page 353 of 683
DRIVER SUPPORT
}}
* Option/accessory.351
Rear Collision Warning *85
The Rear Collision Warning 86
(RCW) function
can help the driver avoid rear-end collisions from vehicles approaching from behind.
The function can alert drivers of following vehi- cles of the risk of a collision by rapidly flashingthe turn signals. If, at a speed below 30 km/h (20 mph), the function detects that the vehicle is in dangerof being hit from behind, the seat belt tension-ers may tension the front seat belts. TheWhiplash Protection System will also be acti-vated in a collision. Immediately before a collision from behind, the function may also activate the brakes inorder to reduce the forward acceleration of thevehicle during the collision. However, thebrakes will only be applied if your vehicle isstationary. The brakes will be immediatelyreleased if the accelerator pedal is depressed. The function is automatically activated each time the engine is started.
WARNING
The function is supplementary driver support intended to facilitate drivingand help make it safer – it cannot han-dle all situations in all traffic, weatherand road conditions.
The driver is advised to read all sec-tions in the Owner's Manual about thisfunction to learn of its limitations,which the driver must be aware ofbefore using the function.
Driver support functions are not a sub-stitute for the driver's attention andjudgment. The driver is always respon-sible for ensuring the vehicle is drivenin a safe manner, at the appropriatespeed, with an appropriate distance toother vehicles, and in accordance withcurrent traffic rules and regulations.
Related information
Driver support systems (p. 278)
Rear Collision Warning
* limitations
(p. 351)
Whiplash Protection System (p. 48)
Rear Collision Warning
*87
limitations In some situations, it may be difficult for Rear Collision Warning (RCW) to warn the driverof a collision risk.
This may be the case if: the vehicle approaching from the rear is detected at a late stage
the vehicle approaching from the rearchanges lanes at a late stage
a trailer, bicycle holder or similar is con-nected to the vehicle's electrical system -the function will then be automaticallydeactivated.
NOTE
In certain markets RCW does
not warn
with the direction indicators due to local traffic regulations – in such cases, that partof the function is deactivated.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
85 Warning of collision from the rear.
86 This function is not available on all markets.
87 Warning of collision from the rear.
Page 354 of 683
||
DRIVER SUPPORT
* Option/accessory.
352
Related information
Rear Collision Warning
* (p. 351)
Setting a warning distance for City Safety (p. 334)
Camera/radar sensor limitations (p. 390)
BLIS
*
The BLIS 88
function is designed to help pro-
vide assistance in heavy traffic with several lanes moving in the same direction by helpingthe driver to detect the presence of vehiclesin the "blind spot" area behind and to the sideof the vehicle.
Location of BLIS indicator light
BLIS is a driver support system designed to alert the driver of:
vehicles in your "blind spot"
vehicles approaching rapidly in adjacentlanes.
BLIS overview
Blind spot zone
Rapidly approaching vehicle zone
The system is designed to react to:
vehicles passing your vehicle
vehicles that are rapidly approaching your vehicle from behind.
When BLIS detects a vehicle in zone 1 or arapidly approaching vehicle in zone 2, an indi-cator light will illuminate in the relevant rear-view mirror and glow steadily. If the driverthen uses the turn signal on the side in whichthe warning has been given, the indicator lightwill become brighter and begin flashing. BLIS is active when your vehicle is traveling at a speed over 10 km/h (6 mph).
88 Blind Spot Information
Page 356 of 683
DRIVER SUPPORT
* Option/accessory.
354
BLIS limitations
BLIS 90
functionality may be reduced in cer-
tain situations.
Keep the marked area clean (on both the left and right sides of the vehicle) 91
.
Examples of limitations:
Dirt, ice and snow covering the sensors may reduce functionality and prevent thesystem from providing warnings.
The BLIS function is automatically deacti-vated if a trailer, bicycle holder or similar isconnected to the vehicle's electrical sys-tem.
For BLIS to function effectively, bicycleholders, luggage racks or similar shouldnot be mounted on the vehicle's towbar.
WARNING
BLIS does not work in sharp curves.
BLIS does not work when the vehicle is being reversed.
NOTE
The function uses the vehicle's radar sen- sors, which have certain general limita-tions.
Related information
BLIS
* (p. 352)
Camera/radar sensor limitations (p. 390)
90
Blind Spot Information
91 Note: This illustration is general and details may vary depending on model.
Page 357 of 683
DRIVER SUPPORT
* Option/accessory.355
BLIS messages
A number of messages related to BLIS 92
may
be displayed in the instrument panel. Several examples are provided below.
Message Meaning
Blind spot sensor Service requiredThe system is not functioning as intended. Contact a workshop A
.
Blind spot system off Trailer attachedBLIS and CTA B
have been deactivated because a trailer has been connected to the vehicle's electrical system.
A An authorized Volvo workshop is recommended.
B Cross Traffic Alert *
A text message can be erased by briefly press- ing the
button in the center of the right-
side steering wheel keypad. If a message cannot be erased, contact a workshop A
.
Related information
BLIS
* (p. 352)
Cross Traffic Alert
* (p. 360)
92
Blind Spot Information
Page 360 of 683
DRIVER SUPPORT
* Option/accessory.
358
Driver Alert Control limitations
Driver Alert Control (DAC) functionality may be reduced in certain situations.
In certain situations, the system may provide a warning even if it has not detected a change indriving behavior, e.g.: in strong crosswinds
on grooved road surfaces.
WARNING
In certain cases, driving behavior might not be affected despite the driver's fatigue – when using the Pilot Assist
* function –
resulting in the driver not getting a warning from DAC. It is therefore very important to always stop and take a break at the slightest signof fatigue, regardless of whether the func-tion has issued a warning or not.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information
Driver Alert Control (p. 356)
Camera/radar sensor limitations (p. 390)
Distance Alert
*93
The Distance Alert function can help the driver become aware if the time interval tothe vehicle in front is too short. The vehicle must be equipped with a head-up display * in
order to display Distance Alert.
Symbol for Distance Alert on the windshield with head-up display
In vehicles equipped with a head-up display, a symbol will be displayed on the windshield aslong as the time interval to the vehicle aheadis shorter than the set time interval. However, the
Show Driver Support function must be
activated under Settings in the vehicle's menu system. Distance Alert is active at speeds above 30 km/h (20 mph) and only reacts for vehicles ahead moving in the same directionas your vehicle. No distance information isprovided for oncoming, slow-moving or sta-tionary vehicles.
NOTE
Visual warnings on the windshield may be difficult to notice in cases of strong sun-light, reflections, extreme light contrasts,or if the driver is wearing sunglasses or isnot looking straight ahead.
NOTE
Distance Alert is deactivated while Adap- tive Cruise Control
* or Pilot Assist * is
active.
WARNING
Distance Alert only reacts of the time inter- val to the vehicle ahead is shorter than thepreset value – vehicle speed is not affec-ted.
93 Distance Alert
Page 361 of 683
DRIVER SUPPORT
* Option/accessory.359
WARNING
The function is supplementary driver support intended to facilitate drivingand help make it safer – it cannot han-dle all situations in all traffic, weatherand road conditions.
The driver is advised to read all sec-tions in the Owner's Manual about thisfunction to learn of its limitations,which the driver must be aware ofbefore using the function.
Driver support functions are not a sub-stitute for the driver's attention andjudgment. The driver is always respon-sible for ensuring the vehicle is drivenin a safe manner, at the appropriatespeed, with an appropriate distance toother vehicles, and in accordance withcurrent traffic rules and regulations.
Related information
Activating or deactivating Distance Alert(p. 359)
Distance Alert limitations (p. 359)
Setting time interval to the vehicle ahead(p. 322)
Collision risk warning from driver support(p. 319)
Head-up display
* (p. 146)
Activating or deactivating Distance Alert 94
Distance Alert can be turned off. The function is only available in vehicles that can displayinformation on the windshield with a head-up display *.
Activate or deactivate the function using this button inthe center display's Functionview.
GREEN button indicator light – the func- tion is activated.
GRAY button indicator light – the functionis deactivated.
Distance Alert is automatically activated eachtime the engine is started.
Related information
Distance Alert
* (p. 358)
Distance Alert limitations (p. 359)
Distance Alert limitations 95
Distance Alert functionality may be reduced in certain situations. The function is onlyavailable in vehicles that can display informa-tion on the windshield with a head-up dis- play *.
WARNING
Detection ability may be affected by vehicle size, e.g. motorcycles, whichcan cause the warning light to come onat a shorter time interval than that setor cause the warning to be temporarilyabsent.
Very high speeds can cause the light tocome on at a shorter time interval thanthat set due to limitations in the rangeof the radar unit.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information
Distance Alert
* (p. 358)
Camera/radar sensor limitations (p. 390)
Head-up display
* (p. 146)
Page 364 of 683
||
DRIVER SUPPORT
* Option/accessory.
362
The vehicle is parked very far into a parking space.
In a diagonal parking space, Cross Traffic Alert may be completely "blind" on one side of your vehicle.
Blind zone.
The function's field of vision.
However, as you back your vehicle slowly out of a parking space, CTA's field of vision changes in relation to the obstructing vehicle/object and its blind zone is reduced.
Examples of further limitations
The
auto brake subfunction only detects
vehicles in motion and may therefore not
"see" and brake for e.g. stationary obsta- cles, a cyclists or a pedestrian.
Dirt, ice and snow covering the sensorsmay reduce functionality and prevent thesystem from providing warnings.
CTA is automatically deactivated if atrailer, bicycle holder or similar is con-nected to the vehicle's electrical system.
For CTA to function effectively, bicycleholders, luggage racks or similar shouldnot be mounted on the vehicle's towbar.
NOTE
The function uses the vehicle's radar sen- sors, which have certain general limita-tions.
Related information
Cross Traffic Alert
* (p. 360)
Camera/radar sensor limitations (p. 390)