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214* Option/accessory, for more information, see Introduction.
WARNING
The collision warning system does not engage in all driving situations or traffic,weather or road conditions. The collisionwarning system does not react to vehiclesor cyclists driving in another direction tothe car or to animals. Warning only activated in the event of a high risk for collision. This section "Func-tion" and the section "Limitations" informabout limitations that the driver must beaware of before using the Collision Warn-ing system with Auto Brake. Warnings and brake interventions for pedestrians and cyclists are deactivated ata vehicle speed exceeding 80 km/h. Warnings and brake interventions for pedestrians and cyclists do not work indarkness and tunnels - not even whenstreetlights are lit. The auto-brake function can prevent a col- lision or reduce collision speed. To ensurefull brake performance, the driver shouldalways depress the brake pedal - evenwhen the car auto-brakes. Never wait for a collision warning. The driver is always responsible that the cor-rect distance and speed are maintained -even when the collision warning systemwith auto-brake is used.
Related information
• Collision warning system* (p. 212)
• Collision warning system* - detection of pedestrians (p. 216)
• Collision warning system* - cyclist detec-tion (p. 214)
• Collision warning system* - operation (p.217)
• Collision warning system* - general limita-tions (p. 218)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)
Collision warning system* - cyclist detection
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection.
Optimum examples of what the system interprets as a cyclist - with clear body and bicycle con-tours, directly from behind and in the car's cen-tre line.
Optimal performance of the system requires that the system function that detects a cyclistreceives as unambiguous information as pos-sible about the body and bicycle contours -this implies the opportunity to identify thebicycle, head, arms, shoulders, legs, upperand lower body combined with a normalhuman pattern of movement.
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* Option/accessory, for more information, see Introduction.215
If large parts of the cyclist's body or bicycle are not visible to the function's camera thenthe system cannot detect a cyclist.
The function can only "see" cyclists from behind, who are travelling in the same direction.
• For the function to be able to detect a cyclist, he/she must be an adult and rid-ing a "senior bicycle".
• The bicycle must be equipped with a highly visible and approved 17
rearward-
facing red reflector, fitted at least 70 cm above the roadway.
• The function can only detect cyclistsdirectly from behind and who are travel-ling in the same direction - not at anangle from behind, not from the side.
• Cyclists travelling on the left or right-handedge of the car's imagined/extended sidelines may be detected late or not at all. •
The function's capacity to detect cyclistsat dusk and dawn is limited - just like thehuman eye.
• The function's capacity to detect cyclistsis deactivated when driving in darknessand tunnels - even when streetlights arelit.
• For optimum bicycle detection, the CitySafety™ function must be activated, CitySafety™ (p. 205).
WARNING
Collision Warning with Auto Brake & Cyclist Detection is a means of assistance. The function cannot detect: •all cyclists in all situations and does not see partially obscured cyclists, forexample.
• cyclists in clothing that obscures thecontours of the body or who areapproaching from the side.
• bicycles that have no rearward-facingred reflector.
• bicycles loaded with large objects.
The driver is always responsible that the vehicle is driven properly and with a safetydistance adapted to the speed.
Related information
• Collision warning system* - detection of pedestrians (p. 216)
• Collision warning system* (p. 212)
• Collision warning system* - function (p.213)
• Collision warning system* - operation (p.217)
• Collision warning system* - general limita-tions (p. 218)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)
17
The reflector must fulfil the recommendations and conditions of the traffic authority in the market in question.
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Collision warning system* - detection of pedestrians
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection.
Optimal examples of what the system regards as pedestrians with clear body contours.
Optimal performance of the system requires that the system function that detects pedes-trians receives as unambiguous informationas possible about the contours of the body -this implies the opportunity to identify thehead, arms, shoulders, legs, upper and lowerbody combined with a normal human patternof movement. If large parts of the body are not visible to thecamera then the system cannot detect apedestrian.
• In order for a pedestrian to be detected he/she must appear full-length and havea height of at least 80 cm.
• The system cannot detect a pedestriancarrying larger items.
• The camera sensor's ability to see pedes-trians at dusk and dawn is limited - justlike the human eye.
• The camera sensor's capacity to detectpedestrians is deactivated when driving indarkness and tunnels - even when street-lights are lit.
WARNING
Collision Warning with Auto Brake & Pedestrian Detection is an assistance tool. This function cannot detect all pedestrians in all situations and it cannot see e.g. parti-ally obscured pedestrians, people in cloth-ing that hides the contours of the body orpedestrians shorter than 80 cm.
• The driver is always responsible that the vehicle is driven properly and witha safety distance adapted to thespeed.
Related information
•
Collision warning system* (p. 212)
• Collision warning system* - function (p. 213)
• Collision warning system* - operation (p.217)
• Collision warning system* - cyclist detec-tion (p. 214)
• Collision warning system* - general limita-tions (p. 218)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)
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222* Option/accessory, for more information, see Introduction.
Collision warning system* - symbols and messages
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid to assist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection.
Symbol
AMessageSpecification
Collis'n warning OFFCollision warning system switched off. Shown when the engine is started.The message clears after about 5 seconds or after one press of the
OK button.
Collision warn. UnavailableThe collision warning system cannot be activated. Shown when the driver attempts to activate the function.The message clears after about 5 seconds or after one press of the OK button.
Auto braking was activatedAuto Brake has been active. The message clears after one press of the OK button.
Windscreen Sen- sors blockedThe camera sensor is temporarily disengaged. Shown in the event of snow, ice or dirt on the windscreen for example.
• Clean the windscreen surface in front of the camera sensor.
Read about camera sensor limitations (p. 220).
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Symbol AMessageSpecification
Radar blocked See manualCollision Warning with Auto Brake is temporarily disengaged. The radar sensor is blocked and cannot detect other vehicles. For example, in the event of heavy rain or if slush has collected in front of the radar sensor. Read about radar sensor limitations (p. 197).
Collision warn. Service requiredCollision Warning with Auto Brake is fully or partially disengaged.
• Visit a workshop if the message remains - an authorised Volvo workshop is recommended.
A
Symbols are schematic - may vary by market and car model.
Related information
• Collision warning system* (p. 212)
• Collision warning system* - function (p. 213)
• Collision warning system* - detection ofpedestrians (p. 216)
• Collision warning system* - cyclist detec-tion (p. 214)
• Collision warning system* - operation (p.217)
• Collision warning system* - general limita-tions (p. 218)
• Collision warning system* - camera sen-sor limitations (p. 220)
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224* Option/accessory, for more information, see Introduction.
Driver Alert System*
The Driver Alert System is intended to assist drivers whose driving ability is deteriorating orwho are inadvertently leaving the lane they aredriving on. The Driver Alert System consists of different functions which can either be switched on atthe same time or individually:
• Driver Alert Control - DAC (p. 225).
• Lane Departure Warning - LDW (p. 229).
• Lane Keeping Aid - LKA (p. 234)
A switched-on function is set in standbymode and is not activated automatically untilspeed exceeds 65 km/h. The function is deactivated again when speed decreases to below 60 km/h. Both functions use a camera which is dependent on the lane having side markingspainted on each side.
WARNING
Driver Alert System does not work in all situations but is designed merely as a sup-plementary aid. The driver always bears ultimate responsi- bility for ensuring that the vehicle is drivensafely.
Related information
• Driver Alert Control (DAC)* (p. 224)
• Driver Alert Control (DAC)* - symbols and messages (p. 227)
• Driver Alert Control (DAC)* - operation (p.225)
• Lane Departure Warning (LDW)* (p. 229)
• Lane Keeping Aid (LKA)* (p. 234)
Driver Alert Control (DAC)*
The DAC function is intended to attract the driver's attention when he/she starts to driveless consistently, e.g. if he/she becomes dis-tracted or starts to fall asleep. The objective for DAC is to detect slowly deteriorating driving ability and it is primarilyintended for major roads. The function is notintended for city traffic.
A camera detects the side markings painted on the carriageway and compares the sectionof the road with the driver's steering wheelmovements. The driver is alerted if the vehicledoes not follow the carriageway evenly. In some cases driving ability is not affected despite driver fatigue. In which case theremay not be any warning issued for the driver.For this reason it is always important to stopand take a break in the event of any signs of
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* Option/accessory, for more information, see Introduction.225
driver fatigue, irrespective of whether or not DAC issues a warning.
NOTE
The function must not be used to extend a period of driving. Always plan breaks atregular intervals, and make sure you arewell rested.
LimitationIn some cases the system may issue a warn- ing despite driving ability not deteriorating, forexample: •
in strong side winds
• on rutted road surfaces.
NOTE
The camera sensor has certain limitations (p. 220).
Related information
•Driver Alert System* (p. 224)
• Driver Alert Control (DAC)* - operation (p. 225)
• Driver Alert Control (DAC)* - symbols andmessages (p. 227)
Driver Alert Control (DAC)* - operation
Settings are made from the centre console display screen and its menu system. For infor-mation on how the menu system is used, seeMY CAR (p. 103). Depending on whether the car has Lane Departure Warning - LDW (p. 229) or LaneKeeping Aid - LKA (p. 234) the screen canshow one of the following options:
Car with LDW can show this on the screen.
Car with LKA can show this on the screen.
The Driver Alert function can be set in standby mode. The function can be acti-vated/deactivated in the menu system MY
CAR . For a description of the menu system,
see MY CAR (p. 103). Driver Alert is activated when speed exceeds 65 km/h and remains active as long as thespeed is over 60 km/h.
If the vehicle is being driven errati-cally, the driver is notified by anacoustic signal plus the text mes- sage
Driver Alert Time for a break- the linked symbol is illuminated in the com- bined instrument panel at the same time. Thewarning is repeated after a time if driving abil-ity does not improve.
The warning symbol can go off:
• Press the left stalk switch
OK button.
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* Option/accessory, for more information, see Introduction.227
Driver Alert Control (DAC)* - symbols and messages
DAC (p. 224) can show symbols and text messages on the combined instrument panel or in the centre console's display screen indifferent situations.
Combined instrument panel
Symbol
AMessageSpecification
Driver Alert Time for a breakThe vehicle has been driven inconsistently - the driver is alerted by an acoustic warning signal + text.
Windscreen Sensors blockedThe camera sensor is temporarily disengaged. Shown in the event of snow, ice or dirt on the windscreen for example.
• Clean the windscreen surface in front of the camera sensor.
Read about camera sensor limitations (p. 220).
Driver Alert Sys Service requiredThe system is disengaged.
• Visit a workshop if the message remains - an authorised Volvo workshop is recommended.
A
Symbols are schematic - may vary by market and car model.
Display
Sym-
bol AMessageSpecification
Driver Alert OFFThe function is disengaged.
Driver Alert AvailableThe function is activated.
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