steering VOLVO XC90 2015 Workshop Manual

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
264
Standby mode due to driver actionIf a turn signal is used or if the accelerator pedal is pressed, Pilot Assist will temporarily go intostandby mode. When the turn signal is switchedoff or the accelerator pedal is released, PilotAssist will reactivate automatically. Automatic reactivation from standby mode can be done within 1 minute. After 1 minute haselapsed, Pilot Assist must be reactivated man- ually by pressing the
button.
Pilot Assist will temporarily go into standby mode if: • the brakes are applied
• the gear selector is moved to the
N position.
The driver will then have to regulate speed and distance to the vehicle ahead, or reactivate Pilot Assist manually by pressing the
button on
the left-side steering wheel keypad.
Automatic standby modePilot Assist interacts with other systems, such as Electronic Stability Control. If any of these othersystems are not functioning properly, Pilot Assistwill automatically be deactivated.
WARNING
If this happens, the driver will be alerted by an audible signal and a message in the instru-ment panel. The driver will have to adapt thevehicle's speed, apply the brakes when nec-essary and keep a safe distance to the vehicleahead.
Pilot Assist switches automatically to standby mode if: • the camera cannot detect the traffic lane's side marker lines
• the vehicle ahead is not within a reasonable(detectable) distance
• the driver's hands are not on the steeringwheel
• the driver unbuckles the seat belt
• engine speed (rpm) is too high/low
• the wheels lose traction
• brake temperature is too high
• the stability system's
ESC Sport Mode is
activated
• drive mode
Off Road is selected
• The camera/radar sensor is covered by e.g., wet snow or if heavy rain interferes with radarwaves
Reactivating Pilot Assist from standby mode
–Press the button (1).
> The most recently set speed will be used.
Related information
• Pilot Assist
* (p. 259)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.267
WARNING
•Pilot Assist is not a collision avoidance system. The driver is always responsiblefor applying the brakes if the system doesnot detect another vehicle.
• Do not use Pilot Assist in demandingdriving conditions such as city driving orother heavy traffic situations, in slipperyconditions, when there is a great deal ofwater or slush on the road, during heavyrain or snow, in poor visibility, on windingroads or on highway on- or off-ramps.
• Pilot Assist uses the vehicle's cameraand radar sensor, which have limitations.
Pilot Assist may deactivate or not function optimally if:
• the lane's side market lines are missing, badly faded or cross each other.
• the division of lanes is not clear, e.g.,when a line divides or merges withanother, at exits or if there are many roadsigns/markers.
• if there are edges or other lines on ornear the lane, e.g., curbs, cracks, repairedareas, sharp shadows, etc.
• the lane is narrow or winding.
• the weather conditions (rain, snow, fog,slush, poor visibility, backlighting, etc).
The driver should also be aware that Pilot Assist has the following limitations:
• High curbs, barriers and temporary obsta- cles (cones, barriers etc) may not bedetected or could be detected incorrectlyas side marker lines, which may create arisk of collision. The driver must ensure asafe distance to these obstacles.
• The camera or radar sensor may not beable to detect objects if there are pot-holes or if there are stationary objectspartially or completely blocking the road.
• Pilot Assist does not "see" pedestrians,animals, etc.
• Pilot Assist's steering capacity is limitedand may not always be able to help thedriver keep the vehicle in the lane.
The driver can always take action to override Pilot Assist.
Steep roads and/or heavy loadsPilot Assist is primarily intended for use on rela-tively level roads. The function may not be able tomaintain the correct time interval to the vehicleahead on when driving down steep hills, when thevehicle is transporting a heavy load or if it is tow-ing a trailer. The driver should be attentive andprepared to apply the brakes in these situations.
Related information
• Radar sensor limitations (p. 245)
• Pilot Assist
* (p. 259)
• Starting and activating Pilot Assist (p. 262) •
Setting a Pilot Assist time interval (p. 265)
• Deactivating/resuming Pilot Assist (p. 263)
• Pilot Assistauto-hold brake function (p. 266)
• Camera limitations (p. 241)

DRIVER SUPPORT
268
Other Adaptive Cruise Control (ACC) functionsACC is an optional system designed to assist
the driver by maintaining a set speed or a set time interval to the vehicle ahead.
ACC has several supplementary functions:
• Changing target vehicles
• Automatic standby mode when changing tar- gets
• Auto-hold brake function
• Deactivation of the auto-hold brake function
• Automatically setting the parking brake
Changing target vehicles
If the target vehicle turns suddenly, there may be a sta- tionary vehicle ahead
When ACC is actively following another vehicle at speeds
under 20 mph (30 km/h) and changes
targets from a moving vehicle to a stationary one, the system will brake for the stationary vehicle.
WARNING
If ACC changes targets from a moving vehicle to a stationary one at speeds above 20 mph
(30 km/h), the system will not react to the
stationary vehicle and will accelerate to the previously set speed. The driver must actively apply the brakes to slow/stop the vehicle.
Automatic standby mode when changing targets
ACC disengages and goes into standby mode if:
• your vehicle's speed goes below approx. 3 mph (5 km/h) and ACC cannot determine ifthe target object is a stationary vehicle orsome other type of object such as a speedbump, etc
• the vehicle's speed goes below approx.3 mph (5 km/h) and the vehicle aheadchanges lanes or turns so that ACC nolonger has a target vehicle to follow
Auto-hold brake functionIn slow-moving, stop-and-go traffic or when stop- ped at a traffic light, driving will resume automati-cally if the vehicle is not stopped for more thanapprox. 3 seconds. If it takes more than3 seconds for the vehicle ahead to begin movingagain, ACC will go into standby mode and theauto-hold brake function will activate.
–The driver will then have to reactivate ACC in one of the following ways:
• Press the
button on the left-side
steering wheel keypad
• Press the accelerator pedal
> ACC will resume following the vehicle ahead (target vehicle) if it begins to move
within approx. 6 seconds.
NOTE
ACC can keep the vehicle at a standstill for up to 5 minutes, after which the parking brakewill be set and ACC will go into standbymode. The parking brake has to be released before ACC can be reactivated.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.271
Adaptive Cruise Control (ACC) - fault tracing
ACC is an optional system designed to assist the driver by maintaining a set speed or a settime interval to the vehicle ahead.
If this symbol is displayed in the instru- ment panel and the message
Windscreen sensor Sensor
blocked, see Owner's manual
appears, the ACC radar sensor is blocked and cannot detect vehicles ahead.
This message also indicates that the following systems may have reduced functionality:
• Distance Alert
• City Safety
• Driver Alert Control
• Pilot Assist
• Lane Departure Warning (LDW)
• Lane Keeping Aid (LKA)
• Traffic Sign Information (TSI) The following table lists possible causes for thismessage being displayed and suitable actions:
CauseAction
The windshield in front of the radar is dirty or covered with snow/ice.Clean/clear the windshield in front of the radar.
Heavy rain or snow is interfering with the radar signals.No action possible. Heavy precipitation may affect the function of the radar.
Swirling water or snow from the surface of the road may interfere with the radar signals.No action possible. A very wet or snow-covered road surface may affect the function of the radar.
The windshield in front of the radar is clean but the message remains in the display.Wait a short time. It may take several minutes for the radar to detect that it is no longer obstructed.
A text message can be erased by briefly pressing the
O button on the right-side steering wheel
keypad. If the message recurs, contact a trained and authorized Volvo service technician orretailer.
Related information
• Adaptive Cruise Control (ACC)
* (p. 252)

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.
288
Related information
• Automatic Speed Limiter (ASL)
* (p. 285)
• Activating/deactivating the Automatic Speed Limiter (ASL)
* (p. 286)
• Road Sign Information (RSI)
* (p. 290)
• Changing a Speed Limiter (SL)
* maximum
speed (p. 285)
Deactivating/reactivating the Speed Limiter *
The Speed Limiter (SL) can be temporarily deac- tivated and put in standby mode.Deactivating and putting SL in standby mode
Using the left-side steering wheel keypadTo temporarily put the Speed Limiter in standby mode:
Function buttons and symbols
–Press the button (2).
> The maximum speed marker (4) and sym- bols will change colors from WHITE to GRAY. This indicates that SL is temporarily in standby mode and will not limit the vehi-cle's maximum speed.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
298
Park Assist Camera (PAC) * guiding
lines and fields
The Park Assist Camera system uses guiding and lines and fields to indicate the vehicle'sposition in relation to its immediate surround-ings.
Guiding lines
Sample guidelines
The lines on the screen are projected as if they were a path on the ground around the vehicleand are directly affected by the way in which thesteering wheel is turned. This enables the driverto see path the vehicle will take, even if he/sheturns the steering wheel. These lines also indicate the outermost limits that any object (door mirrors, corners of the body, atrailer hitch, etc.) extends out from the vehicle,even when it turns.
NOTE
When backing up with a trailer, the guiding lines show the path that the vehicle will take,
not the trailer.
WARNING
Keep in mind that when the rear camera has been selected, the image on the screen onlyshows the area behind the vehicle. The drivermust always watch for people, animals, othervehicles, etc., near the sides or the front of thevehicle when turning while backing up. The opposite is true when the front camera is selected. Please note that the guiding lines show the shortest path. Be sure that the vehicle

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.301
•
With
360° view selected, objects/obstacles
may not be detected at the edges of the indi- vidual cameras' fields of vision.
• A crossed-out camera icon means that thecamera is not functioning properly.
Ambient lightingThe camera images are adjusted automatically to the ambient light, which means the image mayvary slightly in terms of light and quality. Poorambient lighting may reduce the quality of theimage.
Maintenance
• Keep the camera's lens free of dirt, ice and snow. This is particularly important in poorambient lighting conditions.
• Remove dirt, ice and snow carefully to avoidscratching the lenses.
• Clean the lens regularly with warm water anda suitable car washing detergent.
Related information
•
Park Assist Camera (PAC)
* (p. 296)
Park Assist Pilot (PAP) *
Park Assist Pilot (PAP) helps the driver drive into and leave parking spaces.
Park Assist Pilot (PAP) provides assistance when parking by measuring the parking space andturning the steering wheel to guide the vehicleinto the space. Information about the actions required by the driver is provided in the center display in the formof symbols, images and text.
NOTE
The driver's task is to follow the instructions, select a gear ( D or R), regulate the vehicle's
speed, apply the brakes when necessary and stop.
Types of parking
Parallel parking
Procedure for parallel parking
PAP helps park the vehicle as follows:
1. The system searches for and measures a possible parking space. While this is being done, the vehicle's speed may not exceedapprox. 20 mph ( 30 km/h). When backinginto a space, the speed may not exceedapprox. 12 mph ( 20 km/h).
2. The vehicle is steered while it is backing into the parking space.
3. The vehicle's position is adjusted in the park- ing space by moving forward and rearward.

DRIVER SUPPORT
304When the vehicle is backing up, PAP will steer it into the parking space. Do as follows:
1. Check that the area behind the vehicle is
clear and put the gear selector in R.
2. Back up slowly without moving the steering wheel. The vehicle's speed must be below approximately 4 mph 7 km/h.
3. Keep an eye on the instrument panel and be prepared to stop the vehicle when you areinstructed by PAP to do so.
NOTE
• Release the wheel while PAP is steering the vehicle.
• The steering wheel must be able to turnfreely.
• For PAP to function optimally, wait untilthe steering wheel is no longer turningbefore beginning the next phase of theparking procedure.
3: Adjusting the vehicle's position
Parallel
Perpendicular
After the vehicle has backed into the parking space, its position in the space has to be adjusted by driving slightly forward and backingup. 1.
Put the gear selector in D, wait until the
steering wheel has turned and drive forward slowly.
2. Stop the vehicle when you are instructed by PAP to do so.
3. Put the gear selector in R, back up slowly
and stop when you are instructed by PAP todo so.
When the parking procedure is finished (this will be indicated by a text message and a graphicimage), PAP switches off automatically. If neces-sary, the driver may need to make minor adjust-ments to ensure that the vehicle is parked cor-rectly.
CAUTION
The warning distance is shorter when PAP is using the sensors than when Park Assist isusing them.
Leaving a parking spaceThis function can only be used for a vehicle that has been par-allel parked and is activated inthe center display's Functionview. 1. Tap the
Park out button in
the center display's Function view.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.305
2. Follow the instructions provided. The proce- dure is the same as when parking the vehicle. The steering wheel may turn back slightly when the function is completed and the driver mayhave to turn the back before leaving the parkingspace. If PAP determines that the driver can leave the parking space without assistance, the functionwill deactivate before the vehicle is completelyout of the space.
Related information
•
Park Assist Pilot (PAP)
* (p. 301)
• Park Assist Pilot (PAP)
* limitations (p. 305)
• Park Assist Pilot (PAP)
* symbols and mes-
sages (p. 307)
Park Assist Pilot (PAP) * limitations
The PAP function may be limited in certain situa- tions.
The PAP parking sequence is cancelledA parking sequence will be cancelled:
• if the vehicle is driven too fast (above approx. 4 mph (7 km/h)
• if the driver taps
Cancel in the center display
• if the driver touches the steering wheel
• if the anti-lock brakes or Electronic Stability Control are activated (e.g., if a wheel beginsto spin or lose traction)
In such cases, a text message will explain why the parking sequence was cancelled.
NOTE
• PAP will not function correctly if its sen- sors are obstructed by dirt, snow, etc.
• In certain situations, PAP may not be ableto measure a parking space. This couldbe due to external sources of sound (e.g.,a vehicle's horn, tires on wet asphalt,pneumatic brakes, noise from a motorcy-cle's exhaust, etc.) emitting ultrasoundusing approximately the same frequen-cies as PAP.
Points to keep in mindPAP is a parking aid only and the driver should always be prepared to take control and cancel aparking sequence. This can be due to one ormore of the following factors:
• PAP's function is based on the way that the vehicles are parked behind and in front ofyour parking space. If they are, for example,parked too close to the curb, there is a riskthat your vehicle's tires or wheel rims couldbe damaged by the curb during the parkingprocedure.
• PAP is intended to provide parking assis-tance on straight streets, not sections ofstreet with curved or irregular curbs. Be surethat your vehicle is parallel to the curb whenPAP measures the parking space.
• PAP may not be able to provide parkingassistance on narrow streets due to lack ofspace to maneuver the vehicle. In situationslike this, it may help to drive as close to theside of the road as possible where the park-ing space is located.
• Use only approved tires with the correct infla-tion pressure because this affects PAP'scapacity to provide parking assistance.Changing to a different approved tire sizemay affect PAP's parameters. Consult atrained and qualified Volvo service technician.
• Heavy rain or snow may inhibit PAP'scapacity to correctly measure a parkingspace.