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To temporarily deactivate Adaptive Cruise Controland put it in standby mode:
–Press the button on the steering wheel(2).
>The symbol in the instrument panelchanges color from WHITE to GRAY andthe set speed in the center of the speed-ometer will change from BEIGE to GRAY.

WARNING
If Adaptive Cruise Control is in standbymode, 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 othersystems, such as Electronic Stability Control
(ESC42). If any of these other systems stopsworking, Adaptive Cruise Control will automati-cally switch off.

WARNING
With automatic standby mode, the driver iswarned by an acoustic signal and a messageon the instrument panel.
The driver must then regulate vehiclespeed, 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 varydepending on model.
42Electronic Stability Control

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Starting passing assistance withAdaptive Cruise Control
Several conditions must be met for passingassistance to be possible.

Requirements for passing assistance
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 for ACC must be highenough to safely pass another vehicle.

Starting parking assistance
To start passing assistance:
–Turn on the left turn signal.
> Passing assistance will start.

Related information
Adaptive Cruise Control* (p. 292)
Passing assistance with Adaptive CruiseControl (p. 301)
Limitations of passing assistancewith Adaptive Cruise Control
Passing assistance functionality may be reducedin certain situations.
WARNING
The driver should be aware that if conditionssuddenly change when using Parking 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
a vehicle for right-hand traffic is driven ina country with left-hand traffic (or viceversa).
Situations of this type can be avoided by tempo-
rarily putting ACC45 in standby mode.

Related information
Adaptive Cruise Control* (p. 292)
Passing assistance with Adaptive CruiseControl (p. 301)
Switching target vehicles withAdaptive Cruise Control
At certain speeds, models with automatic trans-
missions and Adaptive Cruise Control (ACC46)can switch target vehicles.
Switching target vehicles
If the target vehicle ahead turns suddenly, there may bestationary traffic ahead.
When Adaptive Cruise Control is actively follow-ing another vehicle at speeds under 30 km/h(20 mph) and switches targets from a movingvehicle to a stationary vehicle, Adaptive CruiseControl will brake for the stationary vehicle.
45Adaptive Cruise Control

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WARNING
When Adaptive Cruise Control follows anothervehicle at speeds over approx. 30 km/h(20 mph) and changes target vehicle – from amoving vehicle to a stationary one – AdaptiveCruise Control will ignore the stationary vehi-cle and instead accelerate to the storedspeed.
The driver must then intervene and applythe brakes.

Automatic standby mode when switching
targets
Adaptive Cruise Control will be disabled and gointo standby mode:
if your vehicle's speed goes below 5 km/h(3 mph) and Adaptive Cruise Control cannotdetermine if the target object is a stationaryvehicle or another object, e.g. a speed bump.
if your vehicle's speed goes under 5 km/h(3 mph) and the vehicle ahead turns so thatAdaptive Cruise Control no longer has a vehi-cle to follow.

Related information
Adaptive Cruise Control* (p. 292)
Automatic braking with AdaptiveCruise Control
The Adaptive cruise control (ACC47) 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 inone of the following ways:
Pressing the button on the steeringwheel keypad.
Pressing the accelerator pedal.
> Adaptive Cruise Control will resume fol-lowing the vehicle ahead if it begins tomove within approx. 6 seconds.
NOTE
ACC can keep the vehicle stationary for nomore than 5 minutes – after that time theparking brake is applied and Adaptive CruiseControl is deactivated.
The parking brake must be released beforeAdaptive Cruise Control 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 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 Rpositions
the driver puts Adaptive Cruise Control instandby mode.

Auto Activate Parking Brake
In certain situations, the parking brake will beapplied to keep the vehicle at a standstill.
46Adaptive Cruise Control47Adaptive Cruise Control

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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. 292)
Adaptive Cruise Control limitations
Adaptive Cruise Control (ACC48) may have lim-ited functionality in certain situations.
Steep roads and/or heavy loads
Adaptive Cruise Control is primarily intended tobe 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 beselected if Adaptive Cruise Control is acti-vated.

NOTE
The function uses the vehicle's combinedcamera and radar unit, which has certain gen-eral limitations; see sections "Camera limita-tions" and "Radar sensor limitations".

Related information
Adaptive Cruise Control* (p. 292)
Camera limitations (p. 330)
Radar sensor limitations (p. 325)
48Adaptive Cruise Control

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Switching between Cruise Controland Adaptive Cruise Control
In vehicles equipped with Adaptive Cruise Con-trol (ACC), the driver can switch between CruiseControl (CC) and ACC.
A symbol in the instrument panel indicates whichcruise control system is active
CCACC
AA
Cruise control Adaptive Cruise Control
AWHITE symbol: The function is active. GRAY symbol: Standbymode

Switching from ACC to CC
To do so:
1.Press the button on the steering wheelkeypad to put Adaptive Cruise Control instandby mode.
2.Tap the Cruise Control button in the centerdisplay'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 steeringwheel keypad.
> Cruise Control will start and the vehicle'scurrent speed will be set.
WARNING
Switching from ACC to CC means that thevehicle:
will no longer maintain a preset timeinterval 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, ACCwill be automatically activated the next time theengine is started.

Switching from CC to ACC
To do so:
1.Press the button on the steering wheelkeypad to put Cruise Control in standbymode.
2.Tap the Cruise Control button in Functionview. The button's indicator will change fromGREEN to GRAY.
> The symbols in the instrument panel will
switch from CC to ACCto indicate that Adaptive Cruise Control isin standby mode.
3.Pressing the button on the steeringwheel keypad.
> Adaptive Cruise Control will go into activemode and set the vehicle's current speedand the selected time interval to the vehi-cle ahead.
Related information
Adaptive Cruise Control* (p. 292)
Cruise control (p. 283)

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WARNING
The Pilot Assist function is supplementarydriver 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 beeither Standard or Optional.
Pilot Assist regulates speed by accelerating andbraking. 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 aheadin 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 avoidancesystem. 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 inPilot Assist may only be performed by a work-shop – an authorized Volvo workshop is rec-ommended.

In curves and forks in the road
Pilot 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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Instrument panel
Speed indicators52.
Set speed
Speed of the vehicle ahead
The current speed of your vehicle
See "Pilot Assist symbols and messages" forexamples of different combinations of symbolsdepending on the traffic situation.

Related information
Pilot Assist and collision warning (p. 311)
Head-up display for Pilot Assist during colli-sion risks (p. 312)
Activating and starting Pilot Assist (p. 312)
Managing Pilot Assist speed (p. 314)
Setting a time interval for Pilot Assist(p. 315)
Deactivating/reactivating Pilot Assist(p. 316)
Passing assistance with Pilot Assist (p. 318)
Starting passing assistance with Pilot Assist(p. 319)
Passing assistance with Pilot Assist limita-tions (p. 319)
Switching target vehicles with Pilot Assist(p. 319)
Auto-hold braking with Pilot Assist (p. 320)
Pilot Assist limitations (p. 321)
Pilot Assist* symbols and messages (p. 322)
Pilot Assist and collision warning
Pilot Assist can alert the driver if the distance tothe vehicle ahead suddenly decreases to anunsafe distance.
Collision warning audible signal and symbol53.
Acoustic collision warning signal
Collision warning symbol
Camera/radar sensor distance monitoring
Pilot Assist uses approx. 40% of the vehicle'sbraking capacity. If a situation requires morebraking force than Pilot Assist can provide, and ifthe driver does not apply the brakes, a warninglight and audible warning signal will be activated
52Note: This illustration is general and details may vary depending on model.53The illustration is generic - details may vary according to vehicle model.

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to alert the driver that immediate action isrequired.

WARNING
Pilot Assist only issues a warning for vehiclesdetected by its camera and radar unit – thus,a warning may come after a delay or not at all.
Never wait for a warning. Apply thebrakes when necessary!

Related information
Pilot Assist (p. 308)
Head-up display for Pilot Assistduring collision risks
In vehicles equipped with a head-up display*, aflashing warning symbol will be displayed on thewindshield.
Collision warning symbol on the windshield54.

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. 308)
Head-up display* (p. 138)
Activating and starting Pilot Assist
Pilot Assist must first be activated and thenstarted before it can help regulate speed anddistance and provide steering assistance.
Note: This illustration is general and details may varydepending on model.
To start Pilot Assist:
The driver's seat belt must be buckled andthe 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).
54Note: This illustration is general and details may vary depending on model.