warning VOLVO XC70 2016 Owner´s Manual

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* Option/accessory, for more information, see Introduction.211
Collision warning* – function
Function overview
Audio-visual warning signals, collision risk
Radar sensor
Camera
Collision WarningThe radar sensor and the camera work together to detect a pedestrian, a cyclist, sta-tionary vehicles and vehicles that are movingin the same direction as your vehicle. If thereis a risk of collision with a vehicle, a cyclist ora pedestrian, the driver is alerted by a flash-ing red warning light and an audible warningsignal. The system is active at speeds above3 mph (4 km/h).
Brake SupportIf the risk of collision continues to increaseafter the collision warning has been given,Brake Support is activated. Brake Supportprepares the brake system to react quickly,and the brakes are applied slightly. This maybe experienced as a light tug. If the brakes are applied quickly, full braking effect will be provided. Brake Support alsoincreases brake force if the system deter-mines that the driver has not applied ade-quate pressure on the brake pedal.
Auto-brakeIf a collision is imminent and the driver hasnot applied the brakes or begun to steeraround the vehicle, pedestrian or a cyclist,the auto-brake function is activated withoutthe driver pressing the brake pedal. Full brakeforce is applied to help reduce the vehicle’sspeed when the collision occurs or limitedbrake force is applied if this is sufficient toavoid the collision.
NOTE
The auto-brake and brake support func- tions are always on and cannot be turnedoff.
Related information
• Collision warning – introduction (p. 209)
• Collision warning* – operation (p. 212) •
Collision warning* – Pedestrian detection (p. 214)
• Collision warning* – Cyclist detection(p. 213)
• Collision warning* – limitations (p. 215)
• Collision warning – troubleshooting(p. 218)
• Collision warning – symbols and mes-sages (p. 220)

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212* Option/accessory, for more information, see Introduction.
Collision warning* – operation
Settings are made by pressing MY CAR on
the center console control panel and using the menus displayed.
Activating/deactivating both warning
signals
To switch the system's audible and visual
signals on or off at the same time, press MY
CAR on the center console control panel and
go to
SettingsCar settingsDriver
support systems
Collision Warning. If
Pedestrian and Cyclist Detection with Full Auto Brake is on, the system will perform aself-test each time the engine is started bybriefly illuminating the warning light. See MyCar – introduction (p. 76) for a description ofthe menu system. When the engine is switched on, the system setting that was being used when it wasswitched off will be the default setting.
NOTE
The auto-brake and pedestrian/cyclist detection features are always on, even ifthe audible and visual warning signalshave been deactivated.
Activating/deactivating the audible warning signal only
The audible warning signal can be activated/ deactivated by pressing MY CAR on the cen- ter console control panel and going to
SettingsCar settingsDriver support
systems
Warning sound if risk of
collision.
Setting a warning distanceThis setting determines the distance at which the visual and audible warnings are triggered. Select
Long, Normal or Short by pressing
MY CAR on the center console control panel
and going to
SettingsCar settings
Driver support systemsCollision
Warning
Warning distance.
The warning distance determines the level of sensitivity used by the system. The warning distance
Long provides an earlier warning.
Begin by using Long and if the system gives
too many warnings, try changing to Normal.
WARNING
• The setting Short should only be used
in situations where traffic is light and moving at low speeds.
• Pedestrian and Cyclist Detection withFull Auto Brake alerts the driver to therisk of a collision but this function can-not reduce the driver’s reaction time.
• For the system to be as effective aspossible, it is recommended that Dis-tance Alert be set to 4 or 5, see Dis-tance Alert – operation (p. 198).
NOTE
•When Adaptive Cruise Control is used, the warning light and signal will beused by that function, even if thewarnings provided by Pedestrian andCyclist Detection with Full Auto Brakehave been deactivated by the driver.
• In situations where traffic is moving atconsiderably different speeds, or if thevehicle ahead brakes suddenly, warn-ings may be considered to be late, even if the setting
Long has been
selected.
Checking settingsThe current system settings can be checked by pressing MY CAR on the center console
control panel and going to
SettingsCar
settings
Driver support systemsCollision Warning.
Related information
• Collision warning – introduction (p. 209)
• Collision warning* – function (p. 211)
• Collision warning* – Pedestrian detection (p. 214)
• Collision warning* – Cyclist detection(p. 213)
• Collision warning* – limitations (p. 215)
• The camera’s limitations (p. 217)

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* Option/accessory, for more information, see Introduction.213
•
Collision warning – symbols and mes- sages (p. 220)
• Collision warning – troubleshooting(p. 218)
Collision warning* – Cyclist detection
The system can detect a cyclist and auto- brake if certain parameters are fulfilled.
Optimal example of what the system considers to be a cyclist: clear body/bike contours, straightfrom behind and directly in front of the vehicle
In order to help detect a cyclist, the system has to receive clear information about thecontours of the cyclist's body and the bike. Ithas to able to clearly detect the bike, thecyclist's head, arms, shoulders, legs andupper and lower body combined with the per-son's pattern of movement when cycling.
The function only detects cyclists from behind who are moving in the same direction as yourvehicle
The Cyclist Detection feature requires the fol- lowing in order to function: • The cyclist must be an adult riding an "adult-size" bike
• The bike must be equipped with anapproved and clearly visible rear-facingred reflector that is mounted at least27 in. (70 cm) above the road surface
• The feature can only detect a cycliststraight from behind and who is moving inthe same direction as your vehicle
• A cyclist who is to the left or right of yourvehicle may be detected late or not at all.
• The camera's capacity to see a cyclist atdawn or dusk is limited, much as it is forthe human eye.
• The camera's function is deactivated andwill not detect a cyclist in darkness or in

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tunnels, even if there is street lighting in the area.
• For optimal cyclist detection, CitySafety™ must be activated.
WARNING
Pedestrian and Cyclist Detection with Full Auto Brake is designed to be a supple-mentary driving aid. It is not, however,intended to replace the driver's attentionand judgement. The driver is alwaysresponsible for operating the vehicle in asafe manner. The system cannot detect a bike/cyclist if: •He/she is wearing loose-fitting clothing that may obscure body contours
• The bike is approaching your vehiclefrom the side
• The bike is not equipped with a rear-facing red reflector
• The bike is carrying large objects
• Most of the cyclist's body or the bikeitself cannot be "seen" by the system'scamera
Related information
•
Collision warning – introduction (p. 209)
• Collision warning* – function (p. 211)
• Collision warning* – operation (p. 212)
• Collision warning* – Pedestrian detection (p. 214) •
Collision warning* – limitations (p. 215)
• Collision warning – troubleshooting(p. 218)
• Collision warning – symbols and mes-sages (p. 220)
Collision warning* – Pedestrian detection
The system cannot identify all pedestrians
The Pedestrian and Cyclist Detection with Full Auto Brake system can only identify anddetect a pedestrian who is standing upright.This person can be standing still, walking orrunning. This means that the system has to be able to identify a person's head, arms, shoulders,legs, the upper and lower parts of the bodyand a person's pattern of movement whenwalking or running. If parts of the body are not visible to the cam- era, the system cannot detect the pedestrian. The following conditions apply:
• In order to detect a pedestrian, the sys- tem must have a full view of the person's

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* Option/accessory, for more information, see Introduction.215
entire body and the person must be at least 32 in. (80 cm) tall.
• The system cannot detect a pedestriancarrying a large object.
• The camera's capacity to see a pedes-trian at dawn or dusk is limited, much asit is for the human eye.
• The camera's function is deactivated andwill not detect a pedestrian in darkness orin tunnels, even if there is street lighting inthe area.
WARNING
• Pedestrian and Cyclist Detection with Full Auto Brake is designed to be asupplementary driving aid. It is not,however, intended to replace the driv-er's attention and judgement. Thedriver is always responsible for operat-ing the vehicle in a safe manner.
• The system cannot detect all pedes-trians in all situations, such as in dark-ness/at night and cannot detect parti-ally hidden pedestrians, people whoare less than approx. 32 in. (80 cm)tall, or people wearing clothing thatobscures the contours of their bodies.
Related information
•
Collision warning – introduction (p. 209)
• Collision warning* – function (p. 211)
• Collision warning* – operation (p. 212) •
Collision warning* – Cyclist detection (p. 213)
• Collision warning* – limitations (p. 215)
• Collision warning – troubleshooting(p. 218)
• Collision warning – symbols and mes-sages (p. 220)
Collision warning* – limitations
Strong sunlight, reflections, extreme light contrasts, the use of sunglasses, or if thedriver is not looking straight ahead may makethe visual warning signal in the windshield dif-ficult to see. For this reason, always activatethe audible warning signal. Slippery driving conditions increase braking distance, which can reduce the system'scapacity to avoid a collision. In these condi-tions, the ABS and stability systems providethe best possible braking effect while helpingto maintain stability.
NOTE
The visual warning signal may be tempo- rarily disengaged in the event of high pas-senger compartment temperature due tostrong sunlight, etc. If this occurs, theaudible warning signal will be used, even ifit has been deactivated in the menu sys-tem.

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WARNING
• In certain situations, the system can- not provide warnings or warnings maybe delayed if traffic conditions or otherexternal factors make it impossible forthe radar sensor or camera to detect apedestrian, a cyclist or a vehicleahead.
• Warnings may not be provided if thedistance to the vehicle ahead is short,or if movements of the steering wheel/brake pedal are great, such as duringactive driving.
• The sensor system has a limited rangefor pedestrians/cyclists and provideswarnings and braking effect mosteffectively at speeds up to 30 mph(50 km/h). For stationary or slow-mov-ing vehicles, the system functions bestif your vehicle’s speed is belowapproximately 45 mph (70 km/h).
• Warnings for stationary or slow-mov-ing vehicles may not be provided indark conditions or in poor visibility.
The Pedestrian and Cyclist Detection with Full Auto Brake system uses the same radar sen-sors as Adaptive Cruise Control. For moreinformation on the radar sensor and its limita-tions, see Adaptive Cruise Control – limita-tions (p. 193).
NOTE
If warnings are given too frequently, the warning distance can be reduced (see Col-lision warning* – operation (p. 212)). Thiscauses the system to provide later warn-ings, which decreases the total number ofwarnings provided.
WARNING
•The system is not activated at speeds under approx. 2 mph (4 km/h). There-fore, it will not brake your vehicle if youapproach a vehicle ahead at very lowspeed, such as when parking.
• The driver's actions always have high-est priority and override the Pedestrianand Cyclist Detection with Full AutoBrake system. This means that thesystem will not intervene in situationswhere the driver is actively steering,braking or pressing the acceleratorpedal, even if a collision is imminent.
• When Auto-brake has prevented a col-lision with a stationary object, yourvehicle will remain at a standstill forapprox. 1.5 seconds. If your vehiclehas been braked for a moving vehicleahead, your vehicle's speed will bereduced to the same speed as thatvehicle's.
Related information
•
Collision warning – introduction (p. 209)
• Collision warning* – operation (p. 212)
• Collision warning* – function (p. 211)
• Collision warning* – Pedestrian detection (p. 214)
• Collision warning* – Cyclist detection(p. 213)
• The camera’s limitations (p. 217)
• Collision warning – symbols and mes-sages (p. 220)
• Collision warning – troubleshooting(p. 218)

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* Option/accessory, for more information, see Introduction.217
The camera’s limitations
The camera has the same limitations as the human eye. The camera is used by Pedestrian and Cyclist Detection with Full Auto Brake Collision warn-ing – introduction (p. 209), Active High Beams(Active high beams (AHB)* (p. 90)), Road SignInformation (Road Sign Information (RSI)* –introduction (p. 179)) and Driver Alert System(Driver Alert System (p. 222)) with LaneDeparture Warning.
NOTE
• To help protect the camera in very hot conditions, it may be temporarilyswitched off for approximately 15minutes after the engine has beenstarted.
• Keep the section of the windshield infront of the camera clean and free ofice, snow, or condensation.
WARNING
•
The camera has the same type of limi- tations as the human eye, i.e., it can-not see as well in heavy snowfall orrain, thick fog or in heavy blowing dustor snow. In such conditions, systemsdepending on the camera may experi-ence greatly reduced functionality ormay be temporarily deactivated.
• Never place any objects, decals, etc.,on the windshield in front of the cam-era. This could reduce or block thecamera’s function, and could causeone or more of the systems that utilizethe camera to stop functioning.
• Strong sunlight, reflections from theroad surface, ice or snow covering theroad, a dirty road surface, or unclearlane marker lines may drasticallyreduce the camera’s capacity todetect the side of a lane, a pedestrian,a cyclist or another vehicle.
Related information
•
Collision warning – introduction (p. 209)
• Collision warning* – function (p. 211)
• Collision warning* – operation (p. 212)
• Collision warning* – Pedestrian detection (p. 214)
• Collision warning* – Cyclist detection(p. 213)
• Collision warning* – limitations (p. 215) •
Collision warning – troubleshooting(p. 218)
• Collision warning – symbols and mes-sages (p. 220)
• Road Sign Information (RSI)* – introduc-tion (p. 179)
• Driver Alert System (p. 222)
• Active high beams (AHB)* (p. 90)

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Collision warning – troubleshooting
Fault tracing and actions
If the message Windscreen Sensors
blocked is displayed, this means that the
camera is obscured and cannot detect pedestrians, cyclists, vehicles or road marker lines in front of the vehicle. This, in turn, means that Pedestrian and Cyclist Detection with Full Auto Brake, DriverAlert Control, Lane Departure Warning or
Lane Keeping Aid will not have full functional-ity. The table lists possible causes for this mes- sage being displayed, and suitable actions.
CauseAction
The surface of the windshield in front of the camera is dirty or covered with ice or snow.Clean or clear the section of the windshield in front of the camera.
Fog, heavy rain or snow is interfering with the function of the camera.No action possible. Heavy precipitation may affect the function of the camera.
The surface of the windshield is clean but the message remains in the display.Wait a short time. It may take several minutes for the camera to regis- ter visibility.
The surface between the inside of the windshield and the camera is dirty.Contact an authorized Volvo retailer or service technician to have this surface cleaned.

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Maintenance
Camera and radar sensor 7
.
In order to function properly, the camera and radar sensor must be kept clean. Dirt, ice,snow, etc., will reduce the function of thesecomponents. Remove ice and snow when necessary and wash these areas regularly with a suitable carwashing liquid.
Related information
• Collision warning – introduction (p. 209)
• Collision warning* – function (p. 211)
• Collision warning* – operation (p. 212)
• Collision warning* – Pedestrian detection (p. 214)
• Collision warning* – Cyclist detection(p. 213) •
Collision warning* – limitations (p. 215)
• The camera’s limitations (p. 217)
• Collision warning – symbols and mes-sages (p. 220)
7
The illustration is generic; details will vary, depending on the model

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Collision warning – symbols and messages
The table lists possible causes for collision warning-related messages being displayed,and suitable actions.A text message can be erased by pressingbriefly on the
OK button on the turn signal
lever.
SymbolMessageDescription
Collis'n warning OFFPedestrian and Cyclist Detection with Full Auto Brake is switched off. This message is displayed when the engine is started and will disappear after approx. 5 seconds. It can also be erased by pressing the OK but-
ton.
Collision Warning UnavailablePedestrian and Cyclist Detection with Full Auto Brake cannot be activated. This message is displayed when the driver attempts to activate the function. It will disappear after approx. 5 seconds or can be erased bypressing the OK button.
Auto braking was activatedAuto-braking has been active. This message can be erased by pressing the OK button.
Windscreen Sen- sors blockedThe camera is temporarily not functioning. This message is displayed if the camera is obstructed by snow, ice, dirt, etc., on the windshield. Clean the area of the windshield in front of the camera, see The camera’slimitations (p. 217) for more information on the camera’s limitations.
Radar blocked See manualPedestrian and Cyclist Detection with Full Auto Brake is temporarily not functioning. The radar sensor is blocked, for example by heavy rain or snow that has accumulated in front of the sensor, and cannot detectother vehicles, see Adaptive Cruise Control – limitations (p. 193) for more information on the radar sensor’slimitations.
Collision warn. Service requiredPedestrian and Cyclist Detection with Full Auto Brake is partially or completely not functioning. Contact a trained and qualified Volvo service technician if the message remains in the display.