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Distance Alert – symbols and messages
Distance Alert is part of Adaptive Cruise Con- trol and is a function that provides informationabout the time interval to the vehicle ahead.
Symbols and text messagesA text message can be erased by pressingbriefly on the OK button on the turn signal
lever.
SymbolMessageDescription
Radar blocked See manualDistance Alert has been temporarily disconnected because the radar is obstructed in some way and can- not detect other vehicles. See Adaptive Cruise Control – limitations (p. 181) for information on the radarsensor’s limitations.
Collision warn. Serv- ice requiredDistance Alert or Collision Warning with Full Auto-brake and Pedestrian Detection is not functioning prop- erly. Contact a trained and qualified Volvo service technician.
Related information
• Distance Alert – introduction (p. 186)
• Distance Alert – operation (p. 186)
• Distance Alert – limitations (p. 187)
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City Safety – troubleshooting (p. 193)
• City Safety – symbols and messages (p. 195)
• City Safety – Laser sensor (p. 196)
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 uppersection of the windshield. If a collision isimminent, City Safety™ will automaticallyapply the brakes, which may feel like hardbraking. If the difference in speed between your vehi- cle and the vehicle ahead is more thanapproximately 9 mph (15 km/h), City Safety™alone cannot prevent a collision from takingplace. The driver must apply the brakes tohelp avoid a collision or reduce its effect. When the function activates and applies the brakes, a message will appear in the informa- tion display to indicate that the system is/hasbeen active.
NOTE
•
When City Safety™ applies the brakes, the brake lights will illuminate.
• In cases where City Safety™ has stop-ped the vehicle, the system will thenrelease the brakes. The driver mustapply the brakes to keep the vehicle ata standstill.
Related information
•
City Safety – introduction (p. 190)
• City Safety – operation (p. 192)
• City Safety – limitations (p. 192)
• City Safety – troubleshooting (p. 193)
• City Safety – symbols and messages (p. 195)
• City Safety – Laser sensor (p. 196)
5
The illustration is generic; certain details may vary from model to model
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City Safety – operation
Using City Safety™
NOTE
The City Safety™ function is activated automatically each time the engine hasbeen switched off and restarted.
On and OffIn certain situations, it may be desirable to switch City Safety™ off, such as when drivingin close quarters where leaves, branches, etc.may obscure the hood and windshield. When the engine is running, City Safety™ can be switched off as follows: Press My Car in the center console control
panel and go to
SettingsCar settings
Driver support systemsCity Safety.
Select
Off.
If the engine is switched off, City Safety™ will reactivate when the engine is restarted.
WARNING
The laser sensor emits light when the igni- tion is in mode II or higher, even if City
Safety™ has been switched off.
To switch City Safety™ on again:
• Follow the same procedure as for switch- ing City Safety™ off but select
On.
Related information
•City Safety – introduction (p. 190)
• City Safety – function (p. 191)
• City Safety – limitations (p. 192)
• City Safety – troubleshooting (p. 193)
• City Safety – symbols and messages (p. 195)
• City Safety – Laser sensor (p. 196)
• My Car – introduction (p. 70)
City Safety – limitations
Limitations
WARNING
The laser sensor has certain limitations and its function may be reduced (or it maynot function at all) in conditions such asheavy rain or snowfall, or by dense fog orthick, blowing dust or snow. Condensa-tion, dirt, ice or snow on the windshieldmay also interfere with the sensor’s func-tion.
The sensor used by City Safety™ is designed to detect cars and other larger motor vehiclesahead of your vehicle in both daylight anddarkness. Objects such as warning flags hanging from long objects on the roof or accessories suchas auxiliary lights or protective arches on thefront of the vehicle that are higher than thehood may also impede the sensor’s function. Braking distance to the vehicle ahead increa- ses on slippery road surfaces, which mayreduce City Safety’s capacity to avoid a colli-sion. In situations like this, the stability sys-tem (see Stability system – introduction(p. 162)) will help provide the best possiblebraking capacity and stability. City Safety™ emits a laser beam and meas- ures the way in which the light is reflected.
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Therefore, vehicles or objects with low-reflec- tive surfaces may not be detected. Normally,the license plate and taillight reflectors givethe rear section of a vehicle ahead sufficientreflective surfaces to be detected.
NOTE
•
Keep the windshield in front of the laser sensor free of ice, snow, dirt,etc., see City Safety – function(p. 191).
• Snow or ice on the hood deeper than2 inches (5 cm) may obstruct the sen-sor. Keep the hood free of ice andsnow.
• Do not mount or in any way attachanything on the windshield that couldobstruct the laser sensor.
Related information
•
City Safety – introduction (p. 190)
• City Safety – function (p. 191)
• City Safety – operation (p. 192)
• City Safety – troubleshooting (p. 193)
• City Safety – symbols and messages (p. 195)
• City Safety – Laser sensor (p. 196)
City Safety – troubleshooting
Troubleshooting
If Windscreen Sensors blocked appears in
the information display, this indicates that the City Safety™ laser sensor is obstructed insome way and cannot detect vehicles aheadof you, which means that the system is notfunctioning. However, this message will not be displayed in all situations in which the sensor isobstructed. For this reason, the driver mustensure that the area of the windshield in frontof the sensor is always kept clean. The following table shows some of the situa- tions that can cause the message to be dis-played and suggested actions.
CauseAction
The area of the wind- shield in front of the sen-sor is dirty or covered byice or snow.Clean the windshield orremove the ice/snow.
The laser sensor's field of view is obstructed.Remove the obstruction.
NOTE
If a crack, scratch or stone chip should occur in the section of the windshield infront the laser sensor, contact a trainedand qualified Volvo service technician torepair or replace the windshield (see theillustration showing the location of the sen-sor in City Safety – function (p. 191)). Fail-ing to do so may result in reduced CitySafety™ functionality. To help prevent limited or reduced func- tionality, please also observe the following:
• Volvo recommends that cracks, scratches or stone chips on the wind-shield in front of the laser sensorshould not
be repaired; in such cases,
the entire windshield should bereplaced.
• Before the windshield is replaced,contact a Volvo retailer to ensure thatthe correct windshield is ordered andinstalled. If the wrong type of wind-shield is used, this may cause CitySafety™ to function improperly or notat all. Volvo recommends the use ofonly Genuine Volvo ReplacementWindshields.
• When replacing windshield wipers, usethe same type or ones approved byVolvo.
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Related information
•City Safety – introduction (p. 190)
• City Safety – function (p. 191)
• City Safety – operation (p. 192)
• City Safety – limitations (p. 192)
• City Safety – symbols and messages (p. 195)
• City Safety – Laser sensor (p. 196)
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City Safety – symbols and messages
Symbols and messages in the displayWhen City Safety™ automatically applies the brakes, one or more of the symbols in themain instrument panel may illuminate and itsassociated message will be displayed.
A text message can be erased by pressingbriefly 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’s limitations, see City Safety – limitations (p. 192).
City Safety Service requiredCity Safety™ is not functioning.
• If this message remains in the display, have the system checked by a trained and qualified Volvo service technician.
Related information
• City Safety – introduction (p. 190)
• City Safety – function (p. 191)
• City Safety – operation (p. 192)
• City Safety – limitations (p. 192)
• City Safety – troubleshooting (p. 193)
• City Safety – Laser sensor (p. 196)
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City Safety – limitations (p. 192)
• City Safety – troubleshooting (p. 193)
• City Safety – symbols and messages (p. 195)
Collision warning – introduction
Pedestrian and Cyclist Detection with Full Auto Brake is designed to assist the driver ifthere is a risk of a collision with a pedestrian,a cyclist, a vehicle ahead that is at a standstillor one that is moving in the same direction asyour vehicle. This system consists of the following three functions: • Collision Warning
warns the driver of a
potential collision situation.
• Brake Support
helps the driver brake
efficiently in a critical situation.
• Auto-brake
brakes the vehicle automati-
cally if a collision with a pedestrian, a cyclist or another vehicle cannot be avoi-ded and the driver does not apply thebrakes in time or steer around the per-son/vehicle. Auto-brake can help preventa collision or reduce the speed at which acollision occurs.
Since Pedestrian and Cyclist Detection with Full Auto Brake is activated in circumstanceswhere the driver should have begun brakingmuch sooner, the system will not be able toassist the driver in all situations. This system is designed to activate as late as possible to help avoid unnecessary interven-tion. The system should not be used in such a way that the driver changes his/her way of operat- ing the vehicle. If the driver relies entirely onthe system, the chances of an accident even-tually occurring increase considerably. The Pedestrian and Cyclist Detection with Full Auto Brake and City Safety™ systems sup-plement each other. See City Safety – intro-duction (p. 190) for detailed information aboutCity Safety™.
WARNING
No automatic system can be guaranteed to function 100% correctly in all situations.For that reason, never test the Auto-brakesystem by driving toward a person orobject. This could result in serious injury ordeath.
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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.