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•
ACC has kept the vehicle at a standstill for more than 2 minutes
• The engine has been switched off
• The brakes have overheated
Related information
•
Adaptive Cruise Control – introduction(p. 176)
Radar sensor
The radar sensor is designed to help detect cars or larger vehicles driving in the same direction asyour vehicle, in the same lane.
The radar sensor and its limitationsIn addition to being used by the Adaptive Cruise Control (ACC), the radar sensor is also used byDistance Alert (see Distance Alert – introduction(p. 191)) and Collision Warning with Full Auto-brake and Pedestrian Detection (see Collisionwarning – introduction (p. 202)).
WARNING
• If there is visible damage to the front grille or you suspect that the radar sensormay be damaged in any way, contact atrained and qualified Volvo service techni-cian as soon as possible. The radar sen-sor may only function partially (or not atall) if it is damaged or is not securely fas-tened in place.
• Accessories or other objects, such asextra headlights, must not be installed infront of the grille.
• Modification of the radar sensor couldmake its use illegal.
The radar sensor's capacity to detect vehicles ahead is impeded: • if the radar sensor is obstructed and cannotdetect other vehicles, for example in heavy rain, or if snow or other objects are obscuringthe radar sensor.
NOTE
Keep the area in front of the radar sensor clean.
•
if the speed of vehicles ahead is significantly different from your own speed.
Related information
•Adaptive Cruise Control – introduction(p. 176)
• Collision warning – introduction (p. 202)
• Distance Alert – introduction (p. 191)
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WARNING
•Adaptive Cruise Control is not a collision avoidance system. The driver is alwaysresponsible for applying the brakes if thesystem does not detect another vehicle.
• Adaptive Cruise Control does not react topeople or animals, or small vehicles suchas bicycles and motorcycles. It also doesnot react to slow moving, parked orapproaching vehicles, or stationaryobjects.
• Do not use Adaptive Cruise Control indemanding driving conditions such as citydriving or other heavy traffic situations, inslippery conditions, when there is a greatdeal of water or slush on the road, duringheavy rain or snow, in poor visibility, onwinding roads or on highway on- or off-ramps.
Related information
• Adaptive Cruise Control – introduction (p. 176)
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SymbolMessageDescription
-Cruise control Service requiredACC is not functioning. Contact a trained and qualified Volvo service technician.
-Press Brake To hold +
an audible signalThe vehicle is at a standstill and ACC will release the brakes before the parking brake engages to keep the vehicle stopped but a problem with the parking brake means that the vehicle may begin to roll. The driver will have to apply the brakes. The message will remain in the display and the audible signal will continue until the driver applies the brakes or presses the accelerator pedal.
-Below 30 km/h Only fol- lowingThis is displayed if you try to activate ACC at speeds below approx. 18 mph (30 km/h) without a vehicle ahead within range (approx. 100 ft/30 meters).
Related information
• Adaptive Cruise Control – introduction (p. 176)
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196•
City Safety – symbols and messages (p. 200)
• City Safety – Laser sensor (p. 201)
City Safety – function
Function
Location of the laser sensor in the windshield 5
City Safety
™ monitors traffic ahead of you using
a laser sensor mounted in the upper section of the windshield. If a collision is imminent, City Safety ™ will automatically apply the brakes,
which may feel like hard braking. If the difference in speed between your vehicle and the vehicle ahead is more than approximately 9 mph (15 km/h), City Safety ™ alone cannot
prevent a collision from taking place. The driver must apply the brakes to help avoid a collision orreduce its effect. When the function activates and applies the brakes, a message will appear in the information display to indicate that the system is/has beenactive.
NOTE
•
When City Safety
™ applies the brakes,
the brake lights will illuminate.
• In cases where City Safety
™ has stopped
the vehicle, the system will then release the brakes. The driver must apply thebrakes to keep the vehicle at a standstill.
Related information
• City Safety – introduction (p. 195)
• City Safety – operation (p. 197)
• City Safety – limitations (p. 197)
• City Safety – troubleshooting (p. 198)
• City Safety – symbols and messages (p. 200)
• City Safety – Laser sensor (p. 201)
5
The illustration is generic; certain details may vary from model to model
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City Safety – symbols and messages
Symbols and messages in the display
When City Safety™ automatically applies the
brakes, one or more of the symbols in the main instrument panel may illuminate and its associ- ated message will be displayed. A text message can be erased by pressing briefly on the
OK button on the turn signal lever.
SymbolMessageMeaning/action required
Auto braking by City SafetyCity Safety ™ is applying/has applied the brakes automatically.
Windscreen Sensors blockedThe laser sensor is temporarily not functioning due to an obstruction.
• Remove the obstruction and/or clean the windshield in front of the sensor(s).
For more information on the sensor
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202•
City Safety – troubleshooting (p. 198)
• City Safety – symbols and messages (p. 200)
Collision warning – introduction Pedestrian and Cyclist Detection with Full Auto Brake is designed to assist the driver if there is arisk of a collision with a pedestrian, a cyclist, avehicle ahead that is at a standstill or one that ismoving in the same direction as your vehicle.
This system consists of the following three func- tions:
• Collision Warning
warns the driver of a
potential collision situation.
• Brake Support
helps the driver brake effi-
ciently in a critical situation.
• Auto-brake
brakes the vehicle automatically
if a collision with a pedestrian, a cyclist oranother vehicle cannot be avoided and thedriver does not apply the brakes in time orsteer around the person/vehicle. Auto-brakecan help prevent a collision or reduce thespeed at which a collision occurs.
Since Pedestrian and Cyclist Detection with FullAuto Brake is activated in circumstances wherethe driver should have begun braking muchsooner, the system will not be able to assist thedriver in all situations. This system is designed to activate as late as possible to help avoid unnecessary intervention. The system should not be used in such a way that the driver changes his/her way of operatingthe vehicle. If the driver relies entirely on the sys- tem, the chances of an accident eventually occur-ring increase considerably. The Pedestrian and Cyclist Detection with Full Auto Brake and City Safety
™ systems supple-
ment each other. See City Safety – introduction (p. 195) for detailed information about City Safety ™.
WARNING
No automatic system can be guaranteed to function 100% correctly in all situations. Forthat reason, never test the Auto-brake systemby driving toward a person or object. Thiscould result in serious injury or death.
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* Option/accessory, for more information, see Introduction.203
WARNING
•Pedestrian and Cyclist Detection with Full Auto Brake does not work in all driving,traffic, weather and road conditions. Itdoes not react to vehicles not traveling inthe same direction as your vehicle.
• Pedestrian and Cyclist Detection with FullAuto Brake does not react to animals.
• Warnings are only provided when the riskof collision is high. The "Function" sectionprovides information about limitations thatthe driver must be aware of before usingCollision Warning.
• Pedestrian and Cyclist Detection with FullAuto Brake will not provide a warning orbrake the vehicle for pedestrians orcyclists at speeds above 50 mph(80 km/h).
WARNING
•
Pedestrian and Cyclist Detection with Full Auto Brake will not provide a warning orbrake the vehicle for pedestrians in dark-ness or in tunnels, even if there is streetlighting in the area.
• The auto-brake function can help preventa collision or reduce the speed at impactbut the driver should always apply thebrakes for the best possible brakingeffect, even if auto-brake is actively apply-ing the brakes.
• Never wait for a collision warning. Thissystem is designed to be a supplemen-tary driving aid. It is not, however,intended to replace the driver's attentionand judgement. The driver is responsiblefor maintaining a safe distance andspeed, even when the collision warningsystem is in use.
• Maintenance of the Pedestrian andCyclist Detection with Full Auto Brakesystem's components must only be per-formed by a trained and qualified Volvotechnician.
Related information
•
Collision warning
* – function (p. 204)
• Collision warning
* – operation (p. 205)
• Collision warning
* – Pedestrian detection
(p. 207) •
Collision warning
* – Cyclist detection
(p. 206)
• Collision warning
* – limitations (p. 208)
• The camera
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* Option/accessory, for more information, see Introduction.
204
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, stationary vehi-cles and vehicles that are moving in the samedirection as your vehicle. If there is a risk of colli-sion with a vehicle, a cyclist or a pedestrian, thedriver is alerted by a flashing red warning lightand an audible warning signal. The system isactive at speeds above 3 mph (4 km/h).
Brake SupportIf the risk of collision continues to increase afterthe collision warning has been given, Brake Sup-port is activated. Brake Support prepares thebrake system to react quickly, and the brakes areapplied slightly. This may be experienced as alight tug. If the brakes are applied quickly, full braking effect will be provided. Brake Support alsoincreases brake force if the system determinesthat the driver has not applied adequate pressureon the brake pedal.
Auto-brakeIf a collision is imminent and the driver has notapplied the brakes or begun to steer around thevehicle, pedestrian or a cyclist, the auto-brakefunction is activated without the driver pressingthe brake pedal. Full brake force is applied tohelp reduce the vehicle