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NOTE
Driver support can keep the vehicle stationaryfor no more than 5 minutes – after that timethe parking brake is applied and the functionis deactivated.
The parking brake must be released beforedriver support can be reactivated.
Deactivation of the Auto-hold brake function
In certain situations, auto-hold will be deactivatedwhen the vehicle is at a standstill and the func-tion will go into standby mode. This means thatthe brakes will be released and the vehicle couldbegin to roll. The driver must actively apply thebrakes to keep the vehicle stationary.
This can occur if:
the driver depresses the brake pedal
the parking brake is applied
the gear selector is moved to the P, N or Rpositions
the driver puts the function in standby mode.
Auto Activate Parking Brake
In certain situations, the parking brake will beapplied to keep the vehicle at a standstill.
This occurs if the function is keeping the vehiclestationary using the brakes and:
the driver opens the door or unbuckleshis/her seat belt
the function has kept the vehicle at a stand-still for more than approx. 5 minutes
the brakes overheat
the driver switches off the engine manually.
Related information
Driver support systems (p. 260)
Adaptive Cruise Control* (p. 272)
Pilot Assist (p. 281)
Brake functions (p. 396)
Passing assistance
Passing assistance can assist the driver whenpassing other vehicles. The function can beused with Pilot Assist or Adaptive Cruise Con-
trol* (ACC40).
How passing assistance works
When Pilot Assist or ACC is following anothervehicle and you indicate that you intend to pass
that vehicle by using the turn signal41, the systemwill begin accelerating toward the vehicle aheadbefore your vehicle has moved into the passinglane.
The function will then delay a speed reduction toavoid early braking as your vehicle approaches aslower-moving vehicle.
The function remains active until your vehicle haspassed the other vehicle.
WARNING
Please note that this function can be acti-vated in more situations than just passinganother vehicle, such as when a direction indi-cator is used to indicate a lane change orbefore exiting to another road – the vehiclewill then briefly accelerate.
39Adaptive Cruise Control40Adaptive Cruise Control41Only the left-hand turn signal for left-hand drive vehicles, or right-hand turn signal for right-hand drive vehicles.
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Related information
Driver support systems (p. 260)
Using passing assistance (p. 296)
Adaptive Cruise Control* (p. 272)
Pilot Assist (p. 281)
Using passing assistance
Several conditions must be met for passingassistance to be possible.
In order to activate passing assistance:
your vehicle must be following a vehicleahead (target vehicle)
your vehicle's current speed must beat least 70 km/h (43 mph)
the set speed must be high enough tosafely pass another vehicle.
To start passing assistance:
–Turn on the left turn signal.
>Passing assistance will start.
WARNING
The driver should be aware that if conditionssuddenly change when using Passing Assis-tance, the function may implement an unde-sired acceleration in certain conditions.
Some situations should be avoided, e.g. if:
the vehicle is approaching an exit in thesame direction as passing would normallyoccur
the vehicle ahead slows before your vehi-cle has had time to switch to the passinglane
traffic in the passing lane slows down
Situations of this type can be avoided by tempo-rarily putting Adaptive Cruise Control or PilotAssist in standby mode.
Related information
Passing assistance (p. 295)
Adaptive Cruise Control* (p. 272)
Pilot Assist (p. 281)
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Radar sensor
The radar sensor is used by several driver sup-port systems to detect other vehicles.
Location of radar sensor.
The radar sensor is used by the following func-tions:
Distance Alert*
Adaptive Cruise Control*
Lane Keeping Aid
Pilot Assist*
City Safety
Any modifications to the radar sensor may makeits use illegal.
Related information
Driver support systems (p. 260)
Camera/radar sensor limitations (p. 300)
Recommended camera and radar sensormaintenance (p. 304)
Radar sensor type approval (p. 297)
Radar sensor type approval
The type approval for the vehicle radar sensor in
the ACC42, PA43 and BLIS44 functions can beread here.
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Radar sensor in ACC and PA
USA & Canada:
FCC ID: L2C0054TR IC: 3432A-0054TR
This device complies with Part 15 of the FCCRules and with Industry Canada license-exemptRSS standard(s). Operation is subject to thefollowing two conditions:
(1) This device may not cause harmfulinterference, and
(2) This device must accept any interferencereceived, including interference that may causeundesired operation.
Cet appareil est conforme aux CNR d
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Camera
The camera is used by several driver supportsystems to e.g. detect lane marker lines or roadsigns.
Location of the camera.
The camera is used by the following functions:
Adaptive Cruise Control*
Pilot Assist*
Lane Keeping Aid*
Steering assistance at risk of collision
City Safety
Driver Alert Control*
Road Sign Information*
Active high beams*
Related information
Driver support systems (p. 260)
Camera/radar sensor limitations (p. 300)
Recommended camera and radar sensormaintenance (p. 304)
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Camera/radar sensor limitations
The camera and radar sensor used by several ofthe driver support functions has certain limita-tions, which also affect the functions using thecamera and radar sensor. The driver should beaware of the following limitations:
Camera and radar
Obstructed camera
The area marked in the illustration must be cleaned reg-ularly and kept free of decals, objects, solar film, etc.
The camera is located on the upper interior sec-tion of the windshield along with the radar sen-sor.
Do not place, affix or mount anything on theinside or outside of the windshield, or in front ofor around the camera and radar sensor – thiscould disrupt camera and radar-based functions.It could cause functions to be reduced, deacti-vated completely or to produce an incorrect func-tion response.
If this symbol and the message“Windscreen sensor Sensorblocked, see Owner's manual” isdisplayed in the instrument panel, itmeans that the camera and radar sensor areunable to detect other vehicles, cyclists, pedes-trians and large animals in front of the vehicleand that the vehicle's camera and radar-basedfunctions may be obstructed, reduced, completelydisabled or providing inaccurate responses.
The following table shows some of the situationsthat can cause the message to be displayed, andsuggested actions:
CauseAction
The area of the windshield in front of the camera/radar sensor isdirty or covered by ice or snow.Clean the windshield in front of the camera/radar sensor and remove dirt, ice andsnow.
Thick fog, heavy rain or snow is blocking the radar signals or thecamera's range of visibility.No action. Heavy precipitation may sometimes prevent the camera/radar sensor fromfunctioning.
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CauseAction
Water or snow is spraying/swirling up and blocking the radar signalsor the camera's range of visibility.No action. Very wet or snow-covered roads may sometimes prevent the camera/radar sensor from functioning.
There is dirt between the inside of the windshield and the camera/radar sensor.Consult a workshop to have the area of the windshield on the inside of the camera'scasing cleaned. An authorized Volvo workshop is recommended.
Bright sunlight.No action. The camera/radar sensor will reset automatically when lighting conditionsimprove.
High temperatures
If the temperature in the passenger compartmentis very high, the camera/radar sensor will switchoff temporarily for approx. 15 minutes after theengine is started to protect its electronic compo-nents. When the temperature has cooled suffi-ciently, the camera/radar sensor will automati-cally restart.
Damaged windshield
NOTE
Failure to take action could result in reducedperformance for the driver support systemsthat use the camera and radar unit. It couldcause functions to be reduced, deactivatedcompletely or to produce an incorrect func-tion response.
To avoid the risk of loss of function, malfunctionor reduced function of the driver support systemsthat use the radar sensor, the following alsoapply:
If there are cracks, scratches or stone chipson the windshield in front of any of the cam-era and radar sensor "windows" and this cov-ers an area of about 0.5 × 3.0 mm(0.02 × 0.12 in.) or more, contact a workshop
to have the windshield replaced45.
Volvo advises against repairing cracks,scratches or stone chips in the area in frontof the camera and radar sensor – the entirewindshield should instead be replaced.
Before replacing the windshield, contact a
workshop45 to verify that the right windshieldhas been ordered and installed.
The same type of windshield wipers or wip-ers approved by Volvo should be used forreplacement.
If the windshield is replaced, the camera andradar sensor must be recalibrated by a work-
shop45 to help ensure proper functioning ofall of the vehicle's camera and radar-basedsystems.
Radar
Vehicle speed
The radar sensor's ability to detect a vehicleahead is significantly reduced if the speed of thevehicle ahead differs greatly from your vehicle'sspeed.
45An authorized Volvo workshop is recommended.
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Limited field of vision
The radar sensor has a limited field of vision. Insome situations, it may detect a vehicle later thanexpected or not at all.
The radar sensor's field of vision.
The radar sensor's detection of vehicles veryclose to your vehicle may be delayed in cer-tain situations, e.g. if a vehicle pulls in
between your vehicle and the vehicle directlyahead.
Small vehicles, such as motorcycles, or vehi-cles that are not driving in the center of thelane may remain undetected.
In curves, the radar may detect the wrongvehicle or lose sight of a target vehicle.
Low trailers
Low trailer in the radar shadow.
Low trailers may also be difficult or even impossi-ble for the radar to detect. The driver should beextra alert when driving behind vehicles towinglow trailers when Adaptive Cruise Control or PilotAssist is activated.
Camera
Reduced visibility
Cameras have the same limitations as the humaneye. In other words, their “vision" is impaired byadverse weather conditions such as heavy snow-fall/rain, dense fog, swirling dust/snow, etc.These conditions may reduce the function of sys-
tems that depend on the camera or cause thesesystems to temporarily stop functioning.
Strong sunlight, reflections from the road surface,ice or snow covering the road, a dirty road sur-face, or unclear lane marker lines may drasticallyreduce the camera