steering VOLVO XC90 T8 2018 Owner´s Manual

DRIVER SUPPORT
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To temporarily deactivate Adaptive Cruise Control and put it in standby mode:
–Press the button on the steering wheel
(2). > The
symbol in the instrument panel
changes color from WHITE to GRAY and the set speed in the center of the speed-ometer will change from BEIGE to GRAY.
WARNING
• If Adaptive Cruise Control is in standby mode, the driver must intervene and regu-late both speed and distance to the vehicleahead.
• If the vehicle comes too close to a vehicleahead when Adaptive Cruise Control is instandby mode, the driver is instead warnedof the short distance by the Distance Alertfunction.
Standby mode due to action by the driver
Adaptive Cruise Control will be temporarily deac- tivated and put in standby mode if:
• the brakes are applied.
• the gear selector is moved to
N
• the vehicle is driven faster than the setspeed for more than 1 minute Temporarily increasing speed using the accelera-
tor pedal, e.g. when passing another vehicle, willnot affect the setting. The vehicle will return tothe set speed when the accelerator pedal isreleased.
Automatic standby mode
Adaptive Cruise Control is dependent on other systems, such as Electronic Stability Control (ESC 50
). If any of these other systems stops
working, Adaptive Cruise Control will automati- cally switch off.
WARNING
With automatic standby mode, the driver is warned by an acoustic signal and a messageon the instrument panel. • The driver must then regulate vehicle speed, apply the brakes if necessary, andmaintain a safe distance to other vehicles.
Adaptive Cruise Control may go into standbymode if: • your vehicle's speed goes below 5 km/h(3 mph) and ACC cannot determine if thevehicle ahead is stationary or if it is anotherobject, e.g. a speed bump.
• your vehicle's speed goes under 5 km/h(3 mph) and the vehicle ahead turns so thatACC no longer has a vehicle to follow. •
the driver opens the door.
• the driver unbuckles the seat belt.
• the engine speed (rpm) is too low/high.
• one or more of the wheels lose traction.
• the brake temperature is high.
• the parking brake is applied.
• the camera/radar sensor is covered by snowor heavy rain (the camera lens/radar wavesare blocked)
Reactivating Adaptive Cruise Control
from standby mode
Note: This illustration is general and details may vary depending on model.
50 Electronic Stability Control

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DRIVER SUPPORT
* Option/accessory.
304 To reactivate ACC from standby mode:
–Press the button on the steering wheel
(1).
> Speed will be set to the most recently stored speed.
WARNING
A noticeable increase in speed may follow when the speed is resumed with the
steering wheel button.
Related information
• Adaptive Cruise Control
* (p. 295)
Passing assistance with AdaptiveCruise Control Adaptive Cruise Control (ACC 51
) can assist the
driver when passing other vehicles.
How passing assistance worksWhen ACC is following another vehicle and you indicate that you intend to pass that vehicle by using the turn signal 52
, Adaptive Cruise Control
will begin accelerating toward the vehicle ahead before your vehicle has moved into the passing
lane. The function will then delay a speed reduction to avoid early braking as your vehicle approaches aslower-moving vehicle. The function remains active until your vehicle has passed 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.
Related information
• Adaptive Cruise Control
* (p. 295)
Starting passing assistance withAdaptive Cruise Control
Requirements for passing assistanceIn order to activate passing assistance:
• your vehicle must be following a vehicle ahead (target vehicle)
• your vehicle's
current speed must be
at least 70 km/h (43 mph)
• the set speed
for ACC must be high
enough to safely pass another vehicle.
Starting parking assistanceTo start passing assistance:
–Turn on the left turn signal.
> Passing assistance will start.
Related information
• Adaptive Cruise Control
* (p. 295)
51
Adaptive Cruise Control
52 Only the left-hand turn signal for left-hand drive vehicles, or right-hand turn signal for right-hand drive vehicles.

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Automatic braking with AdaptiveCruise Control The Adaptive cruise control (ACC 55
) has a spe-
cial brake function in slow traffic and while sta- tionary.
Braking function in slow traffic and at a standstill
In slow-moving, stop-and-go traffic or when stop- ped at a traffic light, driving will resume automati-cally if the vehicle is stopped for less thanapprox. 3 seconds. If it takes more than 3 sec-onds for the vehicle ahead to begin moving again,Adaptive Cruise Control will go into standbymode and the Auto-hold brake function will acti-vate.
–Adaptive Cruise Control can be reactivated in one of the following ways:
• Pressing the
button on the steering
wheel keypad.
• Pressing the accelerator pedal.
> Adaptive Cruise Control will resume fol- lowing the vehicle ahead if it begins to move within approx. 6 seconds.
NOTE
ACC can keep the vehicle stationary for no more than 5 minutes – after that time theparking brake is applied and Adaptive CruiseControl is deactivated. The parking brake must be released before Adaptive Cruise Control can be reactivated.
Deactivation of the Auto-hold brake function
In certain situations, Auto-hold will be deactivated when the vehicle is at a standstill and AdaptiveCruise Control will go into standby mode. Thismeans that the brakes will be released and thevehicle could begin to roll. The driver mustactively apply the brakes to keep the vehicle sta-tionary. 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 R
positions
• the driver puts Adaptive Cruise Control in standby mode.
Auto Activate Parking BrakeIn certain situations, the parking brake will beapplied to keep the vehicle at a standstill. This occurs if Adaptive Cruise Control is keepingthe vehicle stationary using the brakes and:
• the driver opens the door or unbuckleshis/her seat belt
• ACC has kept the vehicle at a standstill formore than approx. 5 minutes
• the brakes overheat
• the driver switches off the engine manually.
Related information
•
Adaptive Cruise Control
* (p. 295)
55
Adaptive Cruise Control

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Adaptive Cruise Control limitations
Adaptive Cruise Control (ACC 56
) may have lim-
ited functionality in certain situations.
Steep roads and/or heavy loadsAdaptive Cruise Control is primarily intended to be driven on flat roads. The function may not beable to maintain the correct time interval to thevehicle ahead when driving down steep hills. Thedriver should be extra attentive and prepared toapply the brakes.
• Do not use Adaptive Cruise Control if thevehicle is carrying a heavy load or towing atrailer.
Other limitations
•
The Off Road drive mode cannot be
selected if Adaptive Cruise Control is acti- vated.
NOTE
The function uses the vehicle's camera unit, which has some general limitations – see thesection "Camera unit limitations".
NOTE
The function uses the vehicle's radar unit, which has some general limitations – see thesection "Radar unit limitations".
Related information
• Adaptive Cruise Control
* (p. 295)
Switching between Cruise Controland Adaptive Cruise Control
In vehicles equipped with Adaptive Cruise Con- trol (ACC 57
), the driver can switch between
Cruise Control (CC 58
) and ACC.
A symbol in the instrument panel indicates which cruise control system is active
CCACC
AA
Cruise control Adaptive Cruise Control
A WHITE symbol: The function is active. GRAY symbol: Standby mode
Switching from ACC to CCTo do so: 1. Press the
button on the steering wheel
keypad to put Adaptive Cruise Control in standby mode.
56 Adaptive Cruise Control

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DRIVER SUPPORT
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308 2.
Tap the
Cruise Control button in the center
display's Function view. The button's indica- tor will change from GRAY to GREEN.
> The symbol in the instrument panel will
change from
ACC to CC, indicating that Adaptive Cruise Con- trol is off and Cruise Control is in standbymode.
3. Pressing the
button on the steering
wheel keypad.
> Cruise Control will start and the vehicle's current speed will be set.
WARNING
Switching from ACC to CC means that the vehicle:
• will no longer maintain a preset time interval to the vehicle ahead.
• will only follow the stored speed and thedriver must therefore apply the brakeswhen necessary.
If CC is active when the engine is turned off, ACC
will be automatically activated the next time theengine is started.
Switching from CC to ACCTo do so: 1. Press the
button on the steering wheel
keypad to put Cruise Control in standby mode.
2. Tap the
Cruise Control button in Function
view. The button's indicator will change from GREEN to GRAY.
> The symbols in the instrument panel will
switch from
CC to ACC
to indicate that Adaptive Cruise Control is in standby mode.
3. Pressing the
button on the steering
wheel keypad.
> Adaptive Cruise Control will go into active mode and set the vehicle's current speed and the selected time interval to the vehi-cle ahead.
Related information
• Adaptive Cruise Control
* (p. 295)
57
Adaptive Cruise Control
58 Cruise Control

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310
SymbolMessageMeaning
The symbol is WHITE. The vehicle is maintaining the set speed.
Adaptive cruise Unavailable
The symbol is GRAY. Adaptive Cruise Control is in standby mode.
Adaptive cruise Service required
The symbol is GRAY.
The system is not functioning as intended. Contact a workshop
‒ an authorized Volvo workshop is
recommended.
Windscreen sensor Sensor blocked, see Owner's manualClean the windshield in front of the camera and radar sensors.
A text message can be erased by briefly pressing the
button in the center of the right-side
steering wheel keypad. If the message persists: Contact a workshop ‒ an
authorized Volvo workshop is recommended.
Related information
• Adaptive Cruise Control
* (p. 295)

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Pilot Assist
Pilot Assist helps the driver keep the vehicle in the current traffic lane by providing steeringassistance and maintaining an even speed and aset time interval to the vehicle ahead.
How Pilot Assist worksThe Pilot Assist function is primarily intended for use on highways and other major roads where itcan help provide a more comfortable and relaxingdriving experience.
The camera/radar sensor monitors the distance to the vehicle ahead and detects lane markings 62
.
Camera and radar sensor
Distance monitor
Lane marker line monitors The driver sets the desired speed and distance to the vehicle ahead. Pilot Assist monitors the dis-tance to the vehicle ahead and the traffic lane'sside markers using the camera and radar sensor.The system maintains the set time interval to thevehicle ahead by automatically adjusting yourvehicle's speed and keeps your vehicle in its laneby providing steering assistance. Pilot Assist's steering assistance is based on monitoring the direction of the vehicle ahead andthe traffic lane's side marker lines. The driver canoverride Pilot Assist's steering recommendationsat any time and steer in another direction, e.g. tochange lanes or avoid obstacles on the road. If the camera/radar sensor cannot detect the lane's side marker lines or if Pilot Assist is unablefor some other reason to clearly interpret thelane, Pilot Assist will temporarily deactivate steer-ing assistance until it can once again interpretthe lane markings. However, the speed and dis-tance warnings will remain active.
WARNING
Pilot Assist is deactivated automatically and resumes working without prior notice.
The color of the steering wheel symbol indicates the currentstatus of steering assistance: • GREEN indicates that steer- ing assistance is active • GRAY (as shown in illustra-
tion) indicates that steering assistance is deacti- vated.
62 Note: This illustration is general and details may vary depending on model.

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WARNING
•The Pilot Assist function is supplementary driver support intended to facilitate driv-ing and help make it safer – it cannothandle all situations in all traffic, weatherand road conditions.
• The driver is advised to read all sectionsin the Owner's Manual about this functionto learn of its limitations, which the drivermust be aware of before using the func-tion (see the link list at the end of thisarticle).
• Pilot Assist should only be used if thereare clear lane lines painted on each sideof the lane. All other use will increase therisk of contact with nearby obstacles thatcannot be detected by the functions.
• Pilot Assist is not a substitute for the driv-er's attention and judgment. The driver isalways responsible for ensuring the vehi-cle is driven in a safe manner, at theproper position within the lane, at theappropriate speed, with an appropriatedistance to other vehicles, and in accord-ance with current traffic rules and regula-tions.
NOTE
Depending on market, this function may be either Standard or Optional.
Pilot Assist regulates speed by accelerating and braking. It is normal for the brakes to emit a slightsound when they are being used to adjust speed. Pilot Assist attempts to smoothly regulate speed. The driver must apply the brakes in situationsrequiring immediate braking. For example, whenthere are great differences in speed betweenvehicles or if the vehicle ahead brakes suddenly.Due to limitations in the camera and radar sen-sor, braking may occur unexpectedly or not at all. Pilot Assist is designed to follow a vehicle ahead in the same lane and maintain a time interval tothat vehicle set by the driver. If the radar sensordoes not detect a vehicle ahead, it will insteadmaintain the speed set by the driver. This will alsohappen if the speed of the vehicle aheadexceeds the set speed for your vehicle.
• Pilot Assist can follow another vehicle atspeeds from a standstill up to 200 km/h(125 mph).
• Pilot Assist can provide steering assistancefrom near-stationary speeds up to 140 km/h(87 mph).
WARNING
• Pilot Assist is not a collision avoidance system. The driver must intervene if thesystem fails to detect a vehicle ahead.
• Pilot Assist does not brake for people,animals, objects, small vehicles (e.g.cycles and motorcycles), low trailers aswell as oncoming, slow or stationary vehi-cles.
• Do not use Pilot Assist in demanding sit-uations, such as in city traffic, at intersec-tions, on slippery surfaces, with a lot ofwater or slush on the road, in heavy rain/snow, in poor visibility, on winding roads,on highway on- or off-ramps, or with atrailer connected to the vehicle.
CAUTION
Maintenance of the integrated components in Pilot Assist may only be performed by a work-shop – an authorized Volvo workshop is rec-ommended.
In curves and forks in the roadPilot Assist is designed to interact with the driver. The driver should never wait for steering assis-tance from Pilot Assist, but instead should alwaysbe ready to increase his or her own steeringefforts, particularly in curves.

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When the vehicle is approaching an off-ramp or a fork in the road, the driver should steer towardthe desired lane to indicate to Pilot Assist thedesired direction of travel.
Pilot Assist strives to keep the vehicle
in the center of the lane
When Pilot Assist provides steering assistance, itstrives to position the vehicle in the center of thelane between the lane markings. For the smooth-est driving experience possible, the driver shouldpermit the vehicle to find the optimal positioning.The driver should check that the vehicle is posi-tioned safely in the lane and can always adjustthe vehicle's position by applying more force tothe steering wheel. If Pilot Assist does not position the vehicle appro- priately in the lane, the driver should turn off PilotAssist or switch to Adaptive Cruise Control.
Overview
Controls
Function buttons and symbols 62
.
: Activates Pilot Assist from standby
mode and resumes the set speed and time interval
: Increases the set speed
: From standby mode - activates Pilot
Assist and sets the current speed
: From active mode - deactivates/puts
Pilot Assist in standby mode
◀ : Switches from Pilot Assist to Adaptive
Cruise Control
: Reduces the set speed
Increases the time interval to the vehicle ahead
▶ : Switches from Adaptive Cruise Control to
Pilot Assist
Reduces the time interval to the vehicle ahead
Function symbol
Symbols for target vehicle and distance to the vehicle ahead
Symbol for activated/deactivated steering assistance
62 Note: This illustration is general and details may vary depending on model.

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NOTE
Visual warnings on the windshield may be dif- ficult to notice in cases of strong sunlight,reflections, extreme light contrasts, or if thedriver is wearing sunglasses or is not lookingstraight ahead.
WARNING
Pilot Assist only issues a warning for vehicles detected by its camera and radar unit – thus,a warning may come after a delay or not at all. •Never wait for a warning. Apply the brakes when necessary!
Related information
• Pilot Assist (p. 311)
Head-up display for Pilot Assistduring collision risks
In vehicles equipped with a head-up display *, a
flashing warning symbol will be displayed on the windshield.
Collision warning symbol on the windshield 64
.
NOTE
Visual warnings on the windshield may be dif- ficult to notice in cases of strong sunlight,reflections, extreme light contrasts, or if thedriver is wearing sunglasses or is not lookingstraight ahead.
Related information
• Pilot Assist (p. 311)
Activating and starting Pilot Assist Pilot Assist must first be activated and then started before it can regulate speed and dis-tance and provide steering assistance.
Note: This illustration is general and details may vary depending on model.
To start Pilot Assist: •
The driver's seat belt must be buckled and the driver's door must be closed.
• There must be a vehicle ahead (target vehi-cle) within a reasonable distance or yourvehicle's current speed must be at least15 km/h (9 mph).
64
Note: This illustration is general and details may vary depending on model.