
07 Driver support
07
216* Option/accessory, for more information, see Introduction.
Collision warning system* - detection of pedestrians
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection.
Optimal examples of what the system regards as pedestrians with clear body contours.
Optimal performance of the system requires that the system function that detects pedes-trians receives as unambiguous informationas possible about the contours of the body -this implies the opportunity to identify thehead, arms, shoulders, legs, upper and lowerbody combined with a normal human patternof movement. If large parts of the body are not visible to thecamera then the system cannot detect apedestrian.
• In order for a pedestrian to be detected he/she must appear full-length and havea height of at least 80 cm.
• The system cannot detect a pedestriancarrying larger items.
• The camera sensor's ability to see pedes-trians at dusk and dawn is limited - justlike the human eye.
• The camera sensor's capacity to detectpedestrians is deactivated when driving indarkness and tunnels - even when street-lights are lit.
WARNING
Collision Warning with Auto Brake & Pedestrian Detection is an assistance tool. This function cannot detect all pedestrians in all situations and it cannot see e.g. parti-ally obscured pedestrians, people in cloth-ing that hides the contours of the body orpedestrians shorter than 80 cm.
• The driver is always responsible that the vehicle is driven properly and witha safety distance adapted to thespeed.
Related information
•
Collision warning system* (p. 212)
• Collision warning system* - function (p. 213)
• Collision warning system* - operation (p.217)
• Collision warning system* - cyclist detec-tion (p. 214)
• Collision warning system* - general limita-tions (p. 218)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)
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07 Driver support
07
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* Option/accessory, for more information, see Introduction.217
Collision warning system* - operation
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection. Settings for the collision warning system are made from  MY CAR via the centre console
screen and menu system, see MY CAR (p.103).
Warning signals On and OffYou can select whether the collision warningsystem's acoustic and visual warning signalsshould be switched on or off. When starting the engine, the setting that was selected when the engine was switched off isobtained automatically.
NOTE
The Brake Support and Auto Brake func- tions are always enabled - they cannot bedeactivated.
Light and acoustic signalsBoth the light and acoustic signals can be deactivated after starting the engine. Thefunction can be activated/deactivated in themenu system  MY CAR. For a description of
the menu system, see MY CAR (p. 103). The warning lamp (see (1) in the illustration (p.213)) is tested each time the engine is startedby briefly lighting the separate light points ofthe warning lamp if the visual and acousticwarning of the collision warning system isactivated.
Acoustic signalThe warning sound can be activated/deacti-vated separately in the menu system 
MY
CAR . For a description of the menu system,
see MY CAR (p. 103).
Set warning distanceThe warning distance regulates the distanceat which the visual and acoustic warnings aredeployed. The warning distance is set in themenu system  MY CAR. For a description of
the menu system, see MY CAR (p. 103). The warning distance determines the sys- tem's sensitivity. Warning distance 
Long pro-
vides an earlier warning. First test with Longand if this setting produces too many warn- ings, which could be perceived as irritating incertain situations, then change to warning distance 
Normal.
Only use warning distance 
Short in excep-
tional cases, e.g. for dynamic driving.
NOTE
When the adaptive cruise control is in use the warning lamp and warning sound willbe used by the cruise control even if thecollision warning system is switched off. The collision warning system warns the driver in the event of a risk of a collision,but the function cannot shorten driverreaction time. In order for the collision warning system to be effective, always drive with DistanceWarning (p. 202) set at time interval 4–5.
NOTE
Even if the warning distance has been set to Long warnings could be perceived as
being late in certain situations, e.g. when there are large differences in speed or ifvehicles in front brake heavily.
WARNING
No automatic system can guarantee 100 % correct function in all situations.Therefore, never test Collision Warningwith Auto Brake by driving at people orvehicles - this may cause severe damageand injury and risk lives.
Checking settingsThe settings required can be controlled on the centre console display screen. Searchwith the menu system (p. 103)  MY CAR.
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07 Driver support
07
218* Option/accessory, for more information, see Introduction.
Maintenance
Camera and radar sensor 18
.
For the sensors to work correctly, they must be kept clear of dirt, ice and snow, and becleaned regularly with water and car sham-poo.
NOTE
Dirt, ice and snow covering the sensors will reduce their function and may preventmeasurement.
Related information
• Collision warning system* (p. 212)
• Collision warning system* - function (p. 213)
• Collision warning system* - detection ofpedestrians (p. 216) •
Collision warning system* - cyclist detec-tion (p. 214)
• Collision warning system* - general limita-tions (p. 218)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)
Collision warning system* - general limitations
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection. The function has certain limitations - for example, it is not active until approx. 4 km/h.. The collision warning system's visual warning signal (see (1) in the illustration (p. 213)) maybe difficult to notice in the event of strongsunlight, reflections, when sunglasses arebeing worn or if the driver is not lookingstraight ahead. The warning sound shouldtherefore always be activated. On slippery road surfaces the braking dis- tance is extended, which may reduce thecapacity to avoid a collision. In such situa-tions the ABS and DSTC systems will providebest possible braking force with maintainedstability.
18
NOTE: The illustration is schematic - details may vary depending on car model.
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07 Driver support
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* Option/accessory, for more information, see Introduction.219
NOTE
The visual warning signal can be temporar- ily disengaged in the event of high passen-ger compartment temperature caused bystrong sunlight for example. If this occursthen the warning sound is activated even ifit is deactivated in the menu system.
• Warnings may not appear if the dis- tance to the vehicle in front is small orif steering wheel and pedal move-ments are large, e.g. a very active driv-ing style.
WARNING
Warnings and brake interventions could be implemented late or not at all if the trafficsituation or external influences mean thatthe radar or camera sensor cannot detecta pedestrian, a vehicle or a cyclist in frontcorrectly. The sensor system has a limited range for pedestrians and cyclists 19
 - the system
can provide effective warnings and brake interventions for them at vehicle speeds upto 50 km/h. For stationary or slow-movingvehicles, warnings and brake interventionsare effective at vehicle speeds up to70 km/h. Warnings for stationary or slow-moving vehicles could be disengaged due to dark-ness or poor visibility. Warnings and brake interventions for pedestrians and cyclists are deactivated atvehicle speeds exceeding 80 km/h.
The collision warning system uses the same radar sensors as the Adaptive cruise control(p. 188). Read more about radar sensor limi-tations (p. 197). If warnings are perceived as being too fre- quent or disturbing then the warning distancecan be reduced (p. 217). This would lead tothe system warning at a later stage, whichreduces the total number of warnings. Collision Warning with Auto Brake is tempo-rarily deactivated with reverse gear engaged. Collision Warning with Auto Brake is not acti- vated at low speeds - under 4 km/h, which iswhy the system does not intervene in situa-tions where the car is approaching a vehiclein front very slowly, e.g. when parking. In situations where the driver demonstrates active, aware driving behaviour, a collisionwarning may be postponed slightly in order tokeep unnecessary warnings to a minimum. When Auto Brake has prevented a collision with a stationary object the car remains sta-tionary for a maximum of 1.5 seconds. If thecar is braked for a vehicle in front that is mov-ing, then speed is reduced to the same speedas that maintained by the vehicle in front. On a car with manual gearbox the engine stops when Auto Brake has stopped the car,unless the driver manages to depress theclutch pedal beforehand.
Related information
•
Collision warning system* (p. 212)
• Collision warning system* - function (p. 213)
• Collision warning system* - detection ofpedestrians (p. 216)
• Collision warning system* - cyclist detec-tion (p. 214)
19
For cyclists, the warning and full brake intervention may come very late or simultaneously.
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07 Driver support
07
220* Option/accessory, for more information, see Introduction.
• Collision warning system* - operation (p. 217)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)Collision warning system* - camera sensor limitations
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection.
The function uses the car's camera sensor,
which has certain limitations. The car’s camera sensor is also used - as well as by Collision Warning with Auto Brake- by the functions:
• Automatic main/dipped beam dim- ming (p. 82)
• Road sign information (p. 179)
• Driver Alert Control - DAC (p. 224)
• Lane Keeping Aid (p. 229)
NOTE
Keep the windscreen surface in front of the camera sensor free from ice, snow, mistand dirt. Do not stick or attach anything to the windscreen in front of the camera sensoras this may reduce effectiveness or causeone or more of the systems dependent onthe camera to stop working.
The camera sensors have limitations similar to the human eye, i.e. they "see" worse in darkness, heavy snowfall or rain and in thickfog for example. Under such conditions thefunctions of camera-dependent systemscould be significantly reduced or temporarilydisengaged. Strong oncoming light, reflections in the car- riageway, snow or ice on the road surface,dirty road surfaces or unclear lane markingscould also significantly reduce camera sensorfunction when it is used to scan the carriage-way and detect pedestrians and other vehi-cles. The field of vision of the camera sensor is lim- ited, which is why pedestrians, cyclists andvehicles cannot be detected in some situa-tions, or they are detected later than anticipa-ted. During very high temperatures the camera is temporarily switched off for about 15 minutesafter the engine is started in order to protectcamera functionality.
Fault tracing and actionIf the display shows the messageWindscreen Sensors blocked then this
means that the camera sensor is blocked and cannot detect pedestrians, cyclists, vehiclesor road markings in front of the car. At the same time, this means that - besides Collision Warning with Auto Brake - the Auto-matic main/dipped beam dimming, Road SignInformation, Driver Alert Control and Lane
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08 Starting and driving
08
* Option/accessory, for more information, see Introduction.267
1. Briefly press on the key's button (2). 
2. Follow this immediately afterwards with a
long press - at least 2 seconds - on button (3).
If the conditions for ERS are fulfilled then the following takes place: 
1. The direction indicators flash quickly sev- eral times.
2. The engine starts. 
3. The direction indicators illuminate with a constant glow for 3 seconds to verify that the engine has started.
NOTE
After remote starting, the car continues to be locked but with deactivated movementdetector*.
With PCC 6
 keyThe light indication for Approach lighting 7
 flashes several times when
the button is pressed and then goes to constant glow if all criteria for
ERS have been fulfilled. However, this doesnot mean that ERS has started the engine. To check whether ERS has started the engine, the user can press the button (5) - ifthe engine has started, there is a light indica-tion by the buttons (2) and (3).
Active functionsThe following functions are activated with a remote started engine: • Ventilation system
• Audio/video system
• Approach light duration.
Deactivated functionsThe following functions are deactivated with a remote started engine: • Headlamps
• Position lamps
• Number plate lighting
• Windscreen wiper.
ERS is interruptedThe following steps switch off an ERS-started engine: • The remote control key's button (1), (2) or (4) is depressed
• The car is unlocked
• A door is opened
• Accelerator pedal or brake pedal isdepressed
• The gear selector is moved out of 
P posi-
tion
• There is approx.10 litres left in the fueltank •
Active ERS time exceeds 15 minutes.
When an ERS-started engine is switched off, the direction indicators illuminate with a con-stant glow for 3 seconds.
Related information
• Remote start (ERS)* (p. 266)
• Remote start (ERS) - symbols and mes- sages (p. 268)
6
For more information on the PCC key, see PCC* - unique functions (p. 153).7
For more information on Approach lighting, see Remote control key - functions (p. 151) and Approach light duration (p. 89).
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08 Starting and driving
08
* Option/accessory, for more information, see Introduction.279
Related information
• Automatic gearbox -- Geartronic* (p. 273)
• Automatic gearbox -- Powershift* (p. 276)Hill start assist (HSA)* 12
The foot brake can be released before setting off or reversing uphill - the HSA (Hill StartAssist) function means that the car does notroll backwards. The function means that the pedal pressure in the brake system remains for several secondswhile the driver's foot is moved from brakepedal to accelerator pedal. The temporary braking effect releases after several seconds or when the driver acceler-ates.
Related information
•
Starting the engine (p. 264)
Start/Stop*
Some engine and gearbox combinations come fitted with a Start and Stop functionwhich engages in the event of e.g. stationarytraffic or waiting at traffic lights - the engine isthen switched off temporarily and restartsautomatically when the journey is due to con-tinue. Environmental care is one of Volvo Car Cor- poration's core values which guides all ouractivities. This target orientation has resultedin several separate energy-saving functions ofwhich Start/Stop is one, all with the collectivetask of reducing fuel consumption, which inturn helps to reduce exhaust emissions.
General information about Start/Stop
The engine is switched off - it becomes quieter and cleaner.
12
Depends on engine and gearbox combination. HSA not possible with some combinations.
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08 Starting and driving
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280* Option/accessory, for more information, see Introduction.
The Start/Stop function gives the driver the opportunity for a more active environmentallyconscious way of driving the car by means ofbeing able to allow the engine to stop auto-matically, whenever appropriate. Manual or Automatic Note that there are differences in the Start/Stop function depending on whether thegearbox is manual or automatic.
Related information
• Start/Stop* - function and operation (p. 280)
• Starting the engine (p. 264)
• Start/Stop* - settings (p. 285)
• Start/Stop* - the engine does not auto-start (p. 284)
• Start/Stop* - the engine auto-starts (p.283)
• Start/Stop* - the engine does not stop (p.282)
• Start/Stop* - involuntary engine stoppagemanual gearbox (p. 284)
• Start/Stop* - symbols and messages (p.286)
• Battery - Start/Stop (p. 365)
Start/Stop* - function and operation
Some engine and gearbox combinations are equipped with a Start/Stop function whichengages in the event of e.g. stationary trafficor waiting at traffic lights. The Start/Stopfunction is activated automatically when theengine is started with the key.
The Start/Stop function isactivated automatically whenthe engine is started with thekey. The driver is madeaware of this by the func-tion's symbol illuminating inthe combined instrumentpanel and the On/Off buttonlamp illuminating. All of the car's normal sys-
tems such as lighting, radio, etc. work as nor- mal even with an engine that has stoppedautomatically, except that some equipmentmay have the function temporarily reduced,e.g. the climate control system's fan speed orextremely high volume on the audio system.
Engine auto-stopThe following is required for the engine to auto-stop:
ConditionsM/A A
Declutch, set the gear lever in neu- tral position and release the clutchpedal - the engine stops automati-cally.M
Stop the car with the foot brake, and then keep your foot on thepedal - the engine auto-stops.A
AM = Manual gearbox, A = Automatic gearbox.
If the ECO function is acti- vated then the engine mayauto-stop before the car iscompletely stationary.
As verification and reminder that the engine is auto-stopped the com-bined instrument panel's symbol forthe Start/Stop function illuminates.
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