04 Driver support
Distance Alert*
04
166* Option/accessory, for more information, see Introduction.
Introduction
Distance Alert is part of Adaptive Cruise Con- trol and is a function that provides informa-tion about the time interval to the vehicleahead. Distance Alert is active at speeds above approximately 18 mph (30 km/h). Time inter-val information is only given for a vehicle thatis driving ahead of your vehicle in the samedirection. No information is provided for vehi-cles driving toward you, moving very slowly,or at a standstill.
Amber warning light 1
An amber warning light in the windshield glows steadily if your vehicle is closer to theone ahead than the set time interval.
NOTE
Distance Alert only monitors distance to the vehicle ahead while Adaptive CruiseControl is in standby mode or off.
WARNING
Distance Alert only indicates the distance to the vehicle ahead. It does not affect thespeed of your vehicle.
Operation
Press the button in the center instrument panel to switch this function on or off. Theindicator light in the button illuminates whenthe function is on. Depending on the optional equipmentselected, there may not be room for a Dis-tance Alert button in the center console. Inthis case, the function is controlled throughthe menu system. Press
MY CAR and go to
SettingsCar settingsDistance alert
On/Off.
Setting a time interval
Controls and display
Time interval: Increase/decrease
Time interval On
Press
to increase the interval or to
decrease it.
1 The illustration is generic; certain details may vary from model to model
04 Driver support
City Safety™
04
}}
169
Introduction
City Safety™1
is a support system designed
to help the driver avoid low speed collisions when driving in slow-moving, stop-and-gotraffic. City Safety™ is not active if your vehicle’s speed is below approximately 2 mph(4 km/h). This means that City Safety™ willnot react if your vehicle approaches anothervehicle at very low speed, for example, whenparking. The function is active at speeds up to approximately 30 mph (50 km/h) and assiststhe driver by applying the brakes automati-cally, thereby avoiding or helping to reducethe effects of a collision. City Safety™ is designed to intervene as late as possible to help avoid unnecessary activa-tion. City Safety™ triggers brief, forceful braking if a low-speed collision is imminent. However,the system will not intervene in situationswhere the driver actively steers the vehicle orapplies the brakes, even if a collision cannotbe avoided. This is done in order to alwaysgive the driver’s actions highest priority. City Safety™ activates in situations where thedriver has not applied the brakes in time,which means that the system cannot help thedriver in all situations. City Safety™ should not be used to alter the way in which the driver operates the vehicle.The driver should never rely solely on thissystem to safely stop the vehicle. Normally, the occupants of the vehicle will not be aware of City Safety™ except whenthe system intervenes when a low-speed col-lision is imminent. If the vehicle is also equipped with the optional Collision Warning with Full Auto-brake and Pedestrian Detection system, thetwo systems interact. For more informationabout the Collision Warning with Auto-brakesystem, see page 175.
WARNING
•
City Safety™ is a supplemental aid to the driver. It can never replace thedriver’s attention to traffic conditionsor his/her responsibility for operatingthe vehicle in a safe manner.
• City Safety™ does not function in alldriving situations or in all traffic,weather or road conditions.
1
City Safety is a registered trademark of the Volvo Car Corporation
04 Driver support
City Safety™
04
170
WARNING
•City Safety™ only reacts to vehicles traveling in the same direction as yourvehicle and does not react to smallvehicles or motorcycles or to people oranimals.
• City Safety™ is not activated whenyour vehicle is backing up.
• City Safety™ functions at speeds upto 30 mph (50 km/h). This system canhelp prevent a collision if the
differ-
ence in speed between your vehicle
and the vehicle ahead is less than9 mph (15 km/h). If the difference inspeed is greater, a collision cannot beavoided but the speed at which thecollision occurs can be reduced. Thedriver must apply the vehicle’s brakesfor full braking effect.
• City Safety™ will not intervene in apotential collision situation if the vehi-cle is being driven actively. The driveris always responsible for maintaining asafe distance to a vehicle or objectahead.
Function
Location of the laser sensor in the windshield 2
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.
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:
2
The illustration is generic; certain details may vary from model to model
04 Driver support
Pedestrian and Cyclist Detection with Full Auto Brake*
04
176* Option/accessory, for more information, see Introduction.
WARNING
• Pedestrian and Cyclist Detection with Full Auto Brake will not provide awarning or brake the vehicle forpedestrians in darkness or in tunnels,even if there is street lighting in thearea.
• The auto-brake function can help pre-vent a collision or reduce the speed atimpact but the driver should alwaysapply the brakes for the best possiblebraking effect, even if auto-brake isactively applying the brakes.
• Never wait for a collision warning. Thissystem is designed to be a supple-mentary driving aid. It is not, however,intended to replace the driver's atten-tion and judgement. The driver isresponsible for maintaining a safe dis-tance and speed, even when the colli-sion warning system is in use.
• Maintenance of the Pedestrian andCyclist Detection with Full Auto Brakesystem's components must only beperformed by a trained and qualifiedVolvo technician.
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.
04 Driver support
Pedestrian and Cyclist Detection with Full Auto Brake*
04
180* Option/accessory, for more information, see Introduction.
WARNING
• The camera has the same limitations as the human eye. In other words, its“vision is impaired” by adverseweather conditions such as heavysnowfall, dense fog, etc. These condi-tions may reduce the function of sys-tems that depend on the camera orcause these systems to temporarilystop functioning.
• 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.
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 entire body and the person must be atleast 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.
04 Driver support
Pedestrian and Cyclist Detection with Full Auto Brake*
04
182* Option/accessory, for more information, see Introduction.
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'scameraFault 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 markerlines in front of the vehicle. This, in turn, means that Pedestrian and Cyclist Detection with Full Auto Brake, LaneDeparture Warning, and Driver Alert Controlwill not have full functionality. 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.
04 Driver support
Driver Alert System*
04
188* Option/accessory, for more information, see Introduction.
WARNING
This feature is only intended to assist the driver and does not function in all driving,weather, traffic or road conditions. As the driver, you have full responsibility for operating the vehicle in a safe manner.
Operation and function
LDW can be switched on or off by pressing the button on the center console. A light inthe button illuminates when the function ison. This is supplemented by graphic displaysin the instrument panel, for example:
LDW displayed in the instrument panel
• The LDW symbol has
white side marker
lines: the function is active and "sees" one or both of the road's side markerlines.
• The LDW symbol has
gray side marker
lines: the function is active but cannot"see" one or both of the road's sidemarker lines.
or
• The LDW symbol has
gray side marker
lines: the function is in standby modebecause the vehicle's speed is below40 mph (65 km/h).
• The LDW symbol has
no side marker
lines: – the function is deactivated.
WARNING
The driver will only be warned once for each time the wheels cross a marker line.No alarm will be given if a marker line isbetween the wheels.
LimitationsThe camera used by LDW has the same limi- tations as the human eye. See page 179 formore information about the camera's limita-tions.
NOTE
No warning signal will be given in the cer-
tain situations, such as:
• If the turn signal is being used
• The driver’s foot is on the brake pedal 3
• The accelerator pedal is pressed quickly 3
• If the steering wheel is moved quickly 3
• In sharp turns that cause the vehicle’s body to sway
SettingsSettings for Lane Departure Warning can be made in the menu system by pressing
My
3
When Increased sensitivity has been selected, a warning will be issued if a side marker line is crossed in this situation.
04 Driver support
Driver Alert System*
04
190* Option/accessory, for more information, see Introduction.
Lane Keeping Aid (LKA) 2
See page 187 for information about determin- ing if your vehicle is equipped with LaneDeparture Warning or Lane Keeping Aid This function is designed to help reduce the risk of accidents in situations where the vehi-cle unintentionally leaves its lane and there isa risk of driving off the road or into the oppo-site lane. It is primarily intended for use onhighways or other major roads with clearlymarked side marker and center lines.
How LKA works
The illustration is generic
LKA uses the camera located at the center, upper edge of the windshield to monitor theroad's/lane’s side marker lines. If the vehicle crosses a side marker line or theroad’s center dividing line, LKA will provideactive steering assistance to help steer itback into the lane. The driver will also be alerted by vibrations in the steering wheel.
WARNING
This feature is only intended to assist the driver and does not function in all driving,weather, traffic or road conditions. As the driver, you have full responsibility for operating the vehicle in a safe manner.
Operation and functionLKA is active at speeds above 40 mph (65 km/h) on highways or other major roadswith clearly marked side/lane marker andcenter lines. On narrow roads where the dis-tance between side/lane marker lines is lessthan approximately 8.5 feet ( 2.6 meters), LKAwill be temporarily deactivated.
LKA monitors and follows the marker lines (the red lines in the illustration)
• White
side marker lines: the function is
active and "sees" one or both of the road's side marker lines.
• Gray
side marker lines: the function is
active but cannot "see" one or both of theroad's side marker lines.
2 Models with 4-cylinder engines only.