||
DRIVER SUPPORT
* Option/accessory.
186
WARNING
The brake pedal moves when the adaptive cruise control system modulates the brakes.Do not rest your foot under the brake pedal.
The ACC system is designed to smoothly regu- late speed. However, the driver must apply thebrakes in situations that require immediate brak-ing. This applies when there are great differencesin speed between vehicles, or if the vehicle aheadbrakes suddenly.
WARNING
Due to limitations in the radar sensor, braking may occur unexpectedly or not at all, seeAdaptive Cruise Control – limitations (p. 193).
Adaptive Cruise Control can be put in active mode at any permitted speed. However, if thevehicle's speed falls below 18 mph (30 km/h) orif engine speed (rpm) becomes too low, ACC dis-engages (goes into standby mode) and will nolonger modulate the brakes. The driver will thenhave to maintain a safe distance to the vehicleahead.
WARNING
When Adaptive Cruise Control is in standby mode or is switched off completely, thebrakes will not be modulated automatically.The driver must assume full control over thevehicle.
Warning light—driver braking requiredAdaptive Cruise Control can exert brake force that is equivalent to approximately 40% of thevehicle's total braking capacity. In situationsrequiring more brake force than ACC can provideand if the driver does not apply the brakes, anaudible signal from the Collision Warning systemwill sound and warning light will illuminate (see Collision warning * – function (p. 211)) in the
windshield to alert the driver to react.
NOTE
Strong sunlight, reflections, extreme light con- trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make thewarning symbol in the windshield difficult tosee.
WARNING
Adaptive Cruise Control only warns of vehicles detected by the radar sensor, see AdaptiveCruise Control – limitations (p. 193). In somecases there may be no warning or the warn-ing may be delayed. The driver should alwaysapply the brakes when necessary.
Steep inclines and/or heavy loadsACC is primarily intended for use on fairly level roads. The system may have difficulty maintainingthe correct distance to a vehicle ahead on steepinclines, if the vehicle is carrying a heavy load oris towing a trailer. In these situations, the drivershould always be prepared to apply the brakes ifnecessary.
Related information
• Adaptive Cruise Control – introduction(p. 183)
DRIVER SUPPORT
}}
189
Different time intervals can be selected and are shown in the instrument panel
4
as 1–5 hori-
zontal bars. The greater the number of bars, the longer thetime interval. One bar repre-sents a time interval of approxi-
mately 1 second; 5 bars is approximately3 seconds.
To set/change a time interval:
• Press the
/ buttons (3).
At low speeds, when the distance to the vehicle ahead is short, ACC increases the time intervalslightly. In order to follow the vehicle ahead assmoothly as possible, ACC allows the time inter-val to vary considerably in certain situations.
WARNING
• Only use a time interval that is suitable in current traffic conditions.
• A short time interval gives the driver lim-ited reaction time if an unexpected situa-tion occurs in traffic.
Related information
• Adaptive Cruise Control – introduction(p. 183)
Adaptive Cruise Control – deactivating
Standby mode (temporary deactivation)To temporarily deactivate ACC (put it in standby mode):
Controls and display
Resume previous settings.
Off/On/Standby mode
• Press
(2).
This symbol and the marking for the set speed with change colors from green to white.
The previously set speed and time interval are resumed by pressing
(1).
WARNING
The vehicle may accelerate quickly after has been pressed if its current speed is con- siderably lower than the set speed.
Standby mode due to action by the driver
ACC is temporarily deactivated and put in standby mode:
• if the brakes are applied
• if the gear selector is moved to
N
• if the driver drives faster than the set speed for more than
1 minute.
In this happens, the driver will have to regulate
the vehicle's speed.
NOTE
If the accelerator pedal is only depressed for a short time, such as when passing anothervehicle, ACC is deactivated temporarily and isreactivated when the pedal is released.
Automatic standby modeACC is linked to other systems such as the sta- bility system. If this system is not functioningproperly, ACC will switch off automatically.
4 The same symbol appears if Distance Alert (see Distance Alert – introduction (p. 198)) is activated
DRIVER SUPPORT
}}
193
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. 198)) and Collision Warning with Full Auto-brake and Pedestrian Detection (see Collisionwarning – introduction (p. 209)).
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 vehiclesahead is impeded: •
if the radar sensor is obstructed and cannotdetect other vehicles, for example in heavyrain, 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. 183)
• Collision warning – introduction (p. 209)
• Distance Alert – introduction (p. 198)
Adaptive Cruise Control – limitations
The ACC cannot cover all driving situations and traffic, weather and road conditions.
Situations where ACC may not function optimally
WARNING
• The radar sensor has a limited field of vision. In some situations it may detect avehicle later than expected or not detectother vehicles at all.
• If ACC is not functioning properly, cruisecontrol will also be disabled.
DRIVER SUPPORT
198
Distance Alert – introduction
Distance Alert is part of Adaptive Cruise Control and is a function that provides information aboutthe time interval to the vehicle ahead.
IntroductionDistance Alert is active at speeds above approxi- mately 18 mph (30 km/h). Time interval informa-tion is only given for a vehicle that is drivingahead of your vehicle in the same direction. Noinformation is provided for vehicles driving towardyou, moving very slowly, or at a standstill.
Amber warning light 5
.
An amber warning light in the windshield glows steadily if your vehicle is closer to the one aheadthan the set time interval.
NOTE
Distance Alert only monitors distance to the vehicle ahead while Adaptive Cruise Control isin standby mode or off.
WARNING
Distance Alert only indicates the distance to the vehicle ahead. It does not affect thespeed of your vehicle.
Related information
• Distance Alert – operation (p. 198)
• Distance Alert – limitations (p. 199)
• Distance Alert – symbols and messages (p. 201)
Distance Alert – operation
Distance Alert is part of Adaptive Cruise Control and is a function that provides information aboutthe time interval to the vehicle ahead.
Press the button in the center instrument panel to switch this function on or off. The indicatorlight in the button illuminates when the functionis on. Depending on the optional equipment selected, there may not be room for a Distance Alert but-ton in the center console. In this case, the func-tion is controlled through the menu system. Press MY CAR and go to
SettingsCar settings
Distance alertOn/Off.
5
The illustration is generic; certain details may vary from model to model
DRIVER SUPPORT
203
•
City Safety – symbols and messages (p. 207)
• City Safety – Laser sensor (p. 208)
City Safety – function
Function
Location of the laser sensor in the windshield 7
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. 202)
• City Safety – operation (p. 204)
• City Safety – limitations (p. 204)
• City Safety – troubleshooting (p. 205)
• City Safety – symbols and messages (p. 207)
• City Safety – Laser sensor (p. 208)
7
The illustration is generic; certain details may vary from model to model
DRIVER SUPPORT
204
City Safety – operation
Using City Safety™
NOTE
The City Safety™ function is activated auto-
matically each time the engine has been switched off and restarted.
On and OffIn certain situations, it may be desirable to switch City Safety ™ off, such as when driving in 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 settingsDriver
support systems
City 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 ignition 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 switching City Safety
™ off but select
On.
Related information
• City Safety – introduction (p. 202)
• City Safety – function (p. 203)
• City Safety – limitations (p. 204)
• City Safety – troubleshooting (p. 205)
• City Safety – symbols and messages (p. 207)
• City Safety – Laser sensor (p. 208)
• My Car – introduction (p. 79)
City Safety – limitations
Limitations
WARNING
The laser sensor has certain limitations and its function may be reduced (or it may notfunction at all) in conditions such as heavyrain or snowfall, or by dense fog or thick,blowing dust or snow. Condensation, dirt, iceor snow on the windshield may also interferewith the sensor
DRIVER SUPPORT
}}
205
may not be detected. Normally, the license plate and taillight reflectors give the rear section of avehicle ahead sufficient reflective surfaces to bedetected.
NOTE
•
Keep the windshield in front of the laser sensor free of ice, snow, dirt, etc., see CitySafety – function (p. 203).
• Snow or ice on the hood deeper than2 inches (5 cm) may obstruct the sensor.Keep the hood free of ice and snow.
• Do not mount or in any way attach any-thing on the windshield that couldobstruct the laser sensor.
Related information
• City Safety – introduction (p. 202)
• City Safety – function (p. 203)
• City Safety – operation (p. 204)
• City Safety – troubleshooting (p. 205)
• City Safety – symbols and messages (p. 207)
• City Safety – Laser sensor (p. 208)
City Safety – troubleshooting
TroubleshootingIf Windscreen Sensors blocked appears in the
information display, this indicates that the City Safety ™ laser sensor is obstructed in some way
and cannot detect vehicles ahead of you, which means that the system is not functioning. However, this message will not be displayed in all situations in which the sensor is obstructed. Forthis reason, the driver must ensure that the areaof the windshield in front of the sensor is alwayskept clean. The following table shows some of the situations that can cause the message to be displayed andsuggested actions.
Cause Action
The area of the windshield in front of the sensor isdirty or covered by ice orsnow. Clean the wind-shield or removethe ice/snow.
The laser sensor's field ofview is obstructed. Remove theobstruction.
NOTE
If a crack, scratch or stone chip should occur in the section of the windshield in front thelaser sensor, contact a trained and qualifiedVolvo service technician to repair or replacethe windshield (see the illustration showingthe location of the sensor in City Safety –function (p. 203)). Failing to do so may result in reduced City Safety
™ functionality.
To help prevent limited or reduced functional- ity, please also observe the following:
• Volvo recommends that cracks, scratchesor stone chips on the windshield in front of the laser sensor
should not be
repaired; in such cases, the entire wind- shield should be replaced.
• Before the windshield is replaced, con-tact a Volvo retailer to ensure that thecorrect windshield is ordered and instal-led. If the wrong type of windshield is used, this may cause City Safety
™ to
function improperly or not at all. Volvo recommends the use of only GenuineVolvo Replacement Windshields.
• When replacing windshield wipers, usethe same type or ones approved by Volvo.
Related information
• City Safety – introduction (p. 202)
• City Safety – function (p. 203)
DRIVER SUPPORT
208
City Safety – Laser sensor
The laser sensor
The upper decal describes the laser beam's clas- sification and contains the following text: Invisible Laser radiation – Do not view directly with optical instruments (magnifiers) – Class 1Mlaser product. The lower decal describes the laser beam's phys- ical data and contains the text: IEC 60825-1:1993 + A2:2001. Complies with FDA performance standards for laser productsexcept for deviations pursuant to Laser NoticeNo. 50, dated July 26th, 2001 The laser beam's physical data is listed in the fol- lowing table:
Maximum pulse energy 2.64 μJ
Maximum average output 45 mW
Pulse length 33 ns
Divergence (horizontal × vertical) 28° × 12°
NOTE
The function of aftermarket laser detectors may be affected by City Safety's laser sensor.
WARNING
The laser sensor emits light when the ignition is in mode II or higher, even if City Safety ™
has been switched off.
WARNING
Eye injury may occur if any of the following points are not followed:
• It is essential that all pertinent instruc- tions be followed when handling laserinstruments. Testing, repairing, removing,adjusting and/or replacing any compo-nents in the laser sensor may only bedone by a trained and qualified Volvoservice technician.
• Do not remove the laser sensor (includingremoval of the lenses). A laser sensorthat has been removed belongs to laserclass 3B according to standard IEC60825-1. Devices in laser class 3B pres-ent a risk of injury to the eyes.
• The laser sensor