2015 VOLVO XC90 d5 engine

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
266
Pilot Assistauto-hold brake function
At certain speeds, Pilot Assist provides braking effect.
Stop-and-go drivingDuring brief stops in slow-moving traffic or att traffic lights where the vehicle is not stopped formore than 3 seconds, driving will resume auto-matically. If it takes more than 3 seconds for thevehicle ahead to begin moving again, Pilot Assistwill go into standby mode and the auto-holdbrake function will activate. The driver will then have to reactivate Pilot Assist as follows:
–• Press the button
• Press the accelerator pedal
> Pilot Assist will resume following the vehi- cle ahead if it begins to move within approx. 6 seconds.
NOTE
• Pilot Assist can keep the vehicle station- ary for max. 5 minutes, after which theparking brake will be set and Pilot Assistwill go into standby mode.
• The parking brake must be releasedbefore Pilot Assist can be reactivated.
Deactivating the auto-hold brake functionIn certain situations, auto-hold will be deactivated when the vehicle is at a standstill and Pilot Assistwill go into standby mode. This means that the brakes will be released and the vehicle can begin to roll. The driver must actively apply the brakes to keep the vehicle at a standstill. This can occur in the following situations: • the driver presses the brake pedal
• the parking brake is set
• the gear selector is moved to the
P, N or R
positions
• the driver puts Pilot Assist in standby mode
Automatically setting the parking brakeIn certain situations, the parking brake is set automatically to help keep the vehicle at a stand-still. This occurs if:
• the driver unbuckles the seat belt or opens the door
• Pilot Assist has kept the vehicle at a stand-still for more than approx. 5 minutes
• the engine is turned off
• the brakes overheat
Related information
•
Pilot Assist
* (p. 259)
Pilot Assist limitations
Pilot Assist functionality may be limited in certain situations.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.269
Deactivation of the auto-hold brake
function
In certain situations, auto-hold will be deactivated when the vehicle is at a standstill and ACC will gointo standby mode. This means that the brakes will be released and the vehicle can begin to roll. The driver must actively apply the brakes to keep the vehicle at a standstill. This can occur in the following situations: • the driver presses the brake pedal
• the parking brake is set
• the gear selector is moved to the
P, N or R
positions
• the driver puts ACC in standby mode
Automatically setting the parking brakeIn certain situations, the parking brake is set automatically to help keep the vehicle at a stand-still. This occurs if:
• the driver unbuckles the seat belt or opens the door
• ACC has kept the vehicle at a standstill formore than approx. 5 minutes
• the engine is turned off
• the brakes overheat
Related information
•
Adaptive Cruise Control (ACC)
* (p. 252)
• Auto-hold brake function (p. 332)
• Parking brake (p. 335)
Radar sensor
The radar sensor is used by several driver sup- port functions to help detect other vehicles.
The radar sensor is used by the following func- tions:
• Distance Alert
*
• Adaptive Cruise Control
*
• Pilot Assist
*
• City Safety
*
Modification of the radar sensor could make itsuse illegal.
Related information
• Radar sensor - type approval (p. 270)
• Radar sensor limitations (p. 245)

DRIVER SUPPORT
275
City Safety warning level settingsCity Safety is always activated but the function's warning distance can be adjusted.
NOTE
City Safety cannot be turned off and activates automatically each time the engine is started.
Setting a warning level (distance)The distance set for warnings determines the system's responsiveness and sets the distance atwhich visual, audible and tangible (haptic) warn-ings will be triggered. If the driver feels that warnings are given too often, the warning level can be lowered. Thismeans that warnings will be provided later, result-ing in fewer warnings being given. To do so:1. Tap
Settings in the center display's Top
view.
2. Tap
My CarIntelliSafeCity Safety.
3. Choose among
Earlier, Normal or Later.
Begin by choosing
Earlier. If too many warnings
are given, change to Normal.
The setting
Later should only used in exceptional
circumstances, e.g., for a more dynamic driving style.
WARNING
• No automatic system can be guaranteed to function 100% correctly in all situa-tions. For that reason, never test CitySafety by driving toward a person orobject. This could result in serious injuryor death.
• Even if the setting
Earlier has been
selected, warnings may be perceived as being given late, e.g., if the difference inspeed is great or if the vehicle aheadbrakes suddenly.
• City Safety can provide a warning for apotential collision but it can never shortenthe driver's reaction time.
• To help make City Safety as effective as possible, always using the setting
Earlieris recommended.
Related information
•City Safety limitations (p. 278)
• City Safety
™ (p. 273)
• Rear Collision Warning (RCW) (p. 277)
Detecting cyclists and pedestrians with City Safety
City Safety can detect vehicles, cyclists and pedestrians.
VehiclesCity Safety detects most types of vehicles that are either stationary, moving in the same direc-tion as your vehicle or approaching when you areabout to turn left. In order for City Safety to detect a vehicle in darkness, its headlights and taillights must be onand clearly visible.
Cyclists
Optimal example of what the system considers to be a cyclist: clear body/bike contours
To help function optimally, City Safety's function for cyclist detection needs clear informationabout the bike itself and the rider's head, arms,

DRIVER SUPPORT
277
City Safety in crossing traffic
City Safety can help the driver when making a left turn in an intersection.
Turning at an intersection
1. The area in which City Safety can detect an oncoming vehicle
In order for City Safety to detect an approaching vehicle in situations where there is a risk of a col-lision, that vehicle must be within City Safety'srange (the red area in the illustration). The following criteria must also be met:
• your vehicle's speed must be at least 3 mph (4 km/h)
• the approaching vehicle's headlights must beon
WARNING
•
City Safety is a supplementary driving aid and does not function in all driving situa-tions or in all traffic, weather or road con-ditions.
• Warnings and braking for an approachingvehicle will usually come at a very latestage.
• The driver is responsible for maintaining asafe distance and speed. Never wait for awarning or for City Safety to take action.
LimitationsIn certain situations, it may be very difficult for City Safety to help the driver avoid a collision withan approaching vehicle in crossing traffic, forexample:
• on slippery roads when Electronic Stability Control is active
• if the approaching vehicle is detected at alate stage
• If the approaching vehicle is partiallyobscured by another vehicle
• if the approaching vehicle moves erratically(e.g., sudden lane changes at a late stage)
Related information
•
City Safety
™ (p. 273)
• City Safety limitations (p. 278)
Rear Collision Warning (RCW)
The
Rear Collision Warning with braking at
standstill (RCW) function can help the driver
avoid rear-end collisions.
RCW is activated automatically each time the engine is started and cannot be turned off. RCW can warn the driver of a vehicle approach- ing yours from behind by rapidly flashing yourrear turn signals. RCW is only activated when a vehicle is rapidly approaching your vehicle from behind. At speeds below 20 mph (30 km/h), if RCW determines that your vehicle is at risk of a rear-end collision, the front seat belt pretensionersand the Whiplash Protection System are acti-vated. Just prior to the collision, the brakes are also applied to help reduce your vehicle's forwardmovement if and when the collision occurs. How-ever, this can only happen if your vehicle is sta-tionary. The brakes will be released immediately if the accelerator pedal is pressed.

DRIVER SUPPORT
279
HeatIf the temperature in the passenger compartment is very high, the camera and radar sensor may betemporarily turned off for approx. 15 minutesafter the engine has been started to protect theirelectronic components. When the temperaturehas cooled sufficiently, the camera and radarsensor will restart automatically. The visual warning signal may also be temporarily disabled due to high passenger compartmenttemperatures caused by strong sunlight. Warnings may not be given if the distance to the vehicle ahead is short and the driver is activelyoperating the vehicle (clearly depressing a pedalor turning the steering wheel).
Reduced visibilityCity Safety's functions may be greatly impeded or deactivated by e.g., intense snowfall or rain, indense fog, in very dusty conditions or if there isblowing snow in front of the vehicle. Condensa-tion, ice, snow or dirt on the windshield may alsoreduce the system's functionality.
NOTE
•Keep the windshield in front of the radar sensor free of ice, snow, dirt, etc.
• 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 radar sensor.
Camera and radar sensor's field of visionThe camera and radar sensor have limited fields of vision. In some situations they may detect avehicle, pedestrian or cyclist later than expectedor not detect them at all. Other vehicles that are dirty may be detected later than others and in dark conditions, motorcy-cles may be detected late or not at all. If a text message is displayed in the instrument panel indicates that the camera or radar sensorare blocked, it may be difficult for City Safety todetect a vehicle, pedestrian or cyclist and thesystem's functionality may be reduced. Camera and radar sensor components should only be serviced or replaced by a trained andqualified Volvo service technician.
Other limitations
WARNING
• Warnings and braking may be delayed or not occur at all if traffic, weather or otherconditions prevent the camera and/orradar sensor from detecting pedestrians,cyclists or other vehicles correctly.
• Other vehicles can only be detected indarkness if their headlights and taillightsare clearly visible.
• The sensors have a limited range forpedestrians and cyclists. The systemfunctions best at speeds up to 30 mph(50 km/h). For stationary or slow-movingvehicles, the system functions best atspeeds up to approx. 43 mph (70 km/h).
• Warnings for stationary or slow-movingvehicles may be impeded by darkness orpoor visibility.
• Warnings and braking for pedestrians andcyclists will not be provided at speedsabove approx. 50 mph (80 km/h).
• Do not place, attach or mount any objectson the inside or outside of the windshieldnear or over the sensor. This could affectthe camera-based functions.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
284
Starting and activating the Speed Limiter (SL) *
The Speed Limiter (SL) is a feature that helps prevent the driver from exceeding a preset maxi-mum speed.
Starting SL (putting it in standby mode)
Function buttons and symbols
–Press ◀ (1) or ▶ (3) to scroll to the Speed
Limiter (
) function.
> The symbol (4) will be displayed in the instrument panel. This indicates that SL has been started and is in standby
mode .
Activating SL (putting it in active mode and setting a maximum speed)
The engine must be running before SL can be put in active mode. The lowest maximum speedthat can be set is 20 mph (30 km/h).
–With SL in standby mode (the will
be displayed), press the
button (2).
> This puts SL in active mode and sets the vehicle's current speed as the maximum speed.
Related information
• Speed limiter (SL)
* (p. 283)
• Deactivating/reactivating the Speed Limiter
*
(p. 288)
• Changing a Speed Limiter (SL)
* maximum
speed (p. 285)
• Automatic Speed Limiter (ASL)
* (p. 285) •
Activating/deactivating the Automatic Speed Limiter (ASL)
* (p. 286)
• Changing tolerance for the Automatic Speed Limiter (p. 287)
• Turning the Speed Limiter
* off (p. 290)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
292
Park Assist *
The Park Assist system is designed to assist you
when driving into parking spaces, garages, etc. An audible signal and symbols in the instrumentpanel and center display indicate the distance tothe object.
Display view showing object zones and sensor sectors
The center display shows an overview of the vehi- cle in relation to objects that have been detected. The highlighted sector shows which of the sen- sors has detected the object. The closer the vehi-cle symbol is to the highlighted sector, the closerthe actual object is to your vehicle. The Park Assist system uses an intermittent tone that pulses faster as you come closer to anobject. Sound from the infotainment system willbe temporarily turned down. The tone becomes constant when you are withinapproximately 1 ft (30 cm) of an object and theactive sensor fields will be completely filled in. Ifthere are objects within this distance both behindand in front of the vehicle, the tone alternatesbetween front and rear speakers. While an audible signal is being given, its volume level can be raised/lowered using the
>II control
in the center console.
WARNING
Park Assist is an information system, NOT a safety system. This system is designed to bea supplementary aid when parking the vehicle.It is not, however, intended to replace the driv-er's attention and judgement.
Rear park assist
The system's rear sensors are activated automat- ically when the engine is started and are active ifthe vehicle rolls rearward with the gear selector in N or if R has been selected.
The distance monitored behind the vehicle is approximately 5 ft (1.5 m). The audible signalcomes from the rear speakers. The rear sensors will be deactivated automatically when towing a trailer if Volvo genuine trailer wir-ing is used. If a non-Volvo trailer hitch is beingused, it may be necessary to switch off the sys-tem manually.
Side park assist
The system's side sensors are activated automat- ically when the engine is started and are active atspeeds below approximately 6 mph (10 km/h).

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.293
The distance monitored along the sides of the vehicle is approximately 1 ft (0.3 m). The audiblesignal comes from the side speakers.
Front park assist
The system's front sensors are activated auto- matically when the engine is started and areactive at speeds below approximately 6 mph(10 km/h). The distance monitored in front of the vehicle is approximately 2.5 ft (0.8 m). The audible signalcomes from the front speakers. Front Park Assist is deactivated if the driver presses the brake pedal or if the gear selector is put in
P.
When installing auxiliary headlights, be sure that they do not obstruct the front sensors. Otherwise,these lights could trigger a Park Assist warning.
Related information
• Activating/deactivating Park Assist (p. 293)
• Park Assist limitations (p. 294)
• Park assist symbols and messages (p. 295)
Activating/deactivating Park Assist
The Park Assist system can be turned on or off.
On/OffPark Assist's front and side sensors are activated automatically when the engine is started. Therear sensors activate if the vehicle rolls rearward in N or if P is selected.
This function can be activated/ deactivated in the center dis-play's Function view.
–Tap the Park Assist button.
> Green indicator: the function is active. Gray indicator: the function is deactivated.
Related information
• Park Assist
* (p. 292)
• Park Assist limitations (p. 294)
• Park assist symbols and messages (p. 295)