light VOLVO XC90 T8 2018 Owner´s Manual

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Managing Cruise Control speedCruise Control (CC 29
) can be set to various
speeds.
Setting/changing set speed
Note: This illustration is general and details may vary depending on model.
For vehicles with only CC
–Change a set speed by pressing the (1)
or
(3) buttons briefly or by pressing and
holding them:
• Press briefly
: Press briefly: each press
changes the speed in +/- 1 mph (+/- 1 km/h) increments.
• Press
and hold: Release the button when
the set speed indicator (4) has moved tothe desired speed. •
The most recently set speed will be stored.
If speed is increased by depressing the accelera- tor pedal while pressing the
(1) button on
the steering wheel, the vehicle's speed when the button is pressed will be stored as the set speed. 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.
For vehicles with both CC and ACC
–Change a set speed by pressing the (1)
or
(3) buttons briefly or by pressing and
holding them:
• Press briefly
: Press briefly: each press
changes the speed in +/- 5 mph (+/- 5 km/h) increments.
• Press
and hold: Release the button when
the set speed indicator (4) has moved tothe desired speed.
• The most recently set speed will be stored.
If speed is increased by depressing the accelera- tor pedal while pressing the
(1) button on
the steering wheel, the vehicle's speed when the button is pressed will be stored as the set speed. Temporarily increasing speed using the accelera- tor pedal, e.g. when passing another vehicle, will not affect the setting. The vehicle will return tothe set speed when the accelerator pedal isreleased.
Using engine braking instead of
applying the brakes
Cruise Control regulates speed by lightly applyingthe brakes. On downgrades, it can sometimes bedesirable to roll a bit faster and let speed bereduced instead by engine braking alone. Thedriver can temporarily disengage the Cruise Con-trol braking function. To disengage CC:
–Press the accelerator pedal about halfway down and then release it.
> Cruise Control will automatically disen- gage the automatic brake function and speed will only be reduced using theengine braking function.
How drive mode affects cruise controlThe way the cruise control maintains the vehicle'sspeed can vary depending on the selected drive mode 30
.
29 Cruise Control
30 For more information, see "Drive modes".

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Cruise Control Eco Cruise
In the ECO drive mode, cruise control's accelera- tion and deceleration will be smoother than inother drive modes to help provide optimal fuelefficiency and reduced environmental impact.Because of this, the vehicle's actual speed maybe slightly above or below the set speed.
Cruise Control Dynamic Cruise
With the Dynamic drive mode, cruise control's acceleration and deceleration will be faster andmore immediate than in other drive modes.
Related information
•Cruise control (p. 286)
Deactivating and putting CruiseControl in standby mode
Cruise Control (CC 31
) can be temporarily put
into standby mode and then reactivated.
Deactivating and putting Cruise Control in standby mode
Note: This illustration is general and details may vary depending on model.
To put Cruise Control in standby mode:
–Press the button on the steering wheel
(2).
> The Cruise Control markings and symbols will change from WHITE to GRAY, indicat- ing that Cruise Control is temporarilydeactivated and the driver needs to con-trol the vehicle's speed.
Standby mode due to action by the driver
Cruise Control will be temporarily deactivated 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
The driver must then control the vehicle's speed. 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
Cruise Control will be temporarily deactivated and put in standby mode if:
• the wheels lose traction
• the engine speed (rpm) is too low/high
• the temperature in the brake systembecomes too high
• the vehicle's speed goes below 30 km/h(20 mph).
The driver must then control the vehicle's speed.
Related information
• Cruise control (p. 286)
31
Cruise Control

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Distance Alert warning light on the windshield 35
.
A warning light will appear on the windshield and glow steadily if the time interval to the vehicleahead is shorter than the set time interval.
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.
NOTE
• Distance Alert is only available in vehicles that can display information on the wind-shield with a head-up display.
• Distance Alert is deactivated while Adap-tive Cruise Control is active.
WARNING
Distance Alert only reacts of the time interval to the vehicle ahead is shorter than the presetvalue – vehicle speed is not affected.
NOTE
Depending on market, this function may be either Standard or Optional.
Related information
•Head-up display for Distance Alert (p. 292)
• Activating/deactivating Distance Alert (p. 293)
• Setting a time interval for Distance Alert(p. 293)
• Distance Alert limitations (p. 294)
Head-up display for Distance Alert36
In vehicles equipped with a head-up display *, a
symbol will be displayed on the windshield as long as the time interval to the vehicle ahead isshorter than the set time interval.
Distance Alert warning symbol on the windshield 37
.
For this to be possible, however, the Show
Driver Support function must be activated
under Settings in the center display's menus (see "Head-up display" for instructions).
35 Note: This illustration is general and details may vary depending on model.
36 The Distance Alert function is only available in vehicles that can display information on the windshield with a head-up display.
37 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.
Related information
•Distance Alert
* (p. 291)
• Head-up display
* (p. 142)
Activating/deactivating Distance
Alert38
It is possible to set time intervals for Distance Alert or to turn the function off.
On/OffPress the Distance Alert but-
ton in the center display's Function view.
• GREEN button indicator light - Distance Alert is on.
• GRAY button indicator light - Distance Alertis off.
Distance Alert is automatically activated eachtime the engine is started.
Related information
• Distance Alert
* (p. 291)
Setting a time interval for Distance
Alert39
The Distance Alert function can be set to differ- ent time intervals.
Different time intervals to the vehicle ahead can be selectedand are shown in the instru-ment panel as 1–5 horizontalbars. The more bars, the longerthe time interval. One bar rep-resents an interval of
approx. 1 second to the vehicle ahead. 5 barsrepresents approx. 3 seconds.
The same symbol appears when the Adaptive Cruise Control function is activated.
38 The Distance Alert function is only available in vehicles that can display information on the windshield with a head-up display.
39 The Distance Alert function is only available in vehicles that can display information on the windshield with a head-up display.

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WARNING
•The radar sensor has a limited field of vision. In some situations, it may detect avehicle later than expected or not detectother vehicles at all.
• The radar sensor cannot cover all drivingsituations and traffic, weather and roadconditions.
• The driver is responsible for maintaining asafe distance and speed and must inter-vene if the various driver support systemsdo not maintain a suitable speed or suita-ble distance to the vehicle ahead.
• Maintenance of radar sensor componentsmay only be performed by a trained andqualified Volvo technician.
• Strong sunlight, reflections from the roadsurface, strong lighting contrasts or usingsunglasses may make the warning light inthe windshield difficult to see. Poorweather or winding roads can affect theradar sensor's capacity to detect vehiclesahead.
• A vehicle's size (e.g., a motorcycle) canalso affect the radar sensor's capacity todetect another vehicle. This may result inthe warning light illuminating at a shorterdistance than the one that has been setor not illuminating at all.
•High speeds may also result in the warn- ing light illuminating at a shorter distancethan the one that has been set due tolimitations in the radar sensor's range.
NOTE
The function uses the vehicle's radar unit, which has some general limitations – see thesection "Radar unit limitations".
Related information
•
Distance Alert
* (p. 291)
Adaptive Cruise Control *
Adaptive Cruise Control (ACC 41
) helps the
driver maintain a constant speed with a set time interval to the vehicle ahead.
Adaptive Cruise Control helps provide a more relaxed driving experience on long trips on high-ways or long, straight roads with even trafficflows.
The camera/radar sensor measures the distance to the vehicle ahead 42
.
The driver sets a speed and a time interval to the vehicle ahead. If the camera/radar sensor detects a slower-moving vehicle ahead, your vehicle's speed will be automatically adapted according to the set time interval to that vehicle. When thereare no longer slower-moving vehicles ahead, thevehicle will return to the set speed.

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WARNING
•The Adaptive Cruise Control function is supplementary driver support intended tofacilitate driving and help make it safer –it cannot handle all situations in all traffic,weather and 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).
• Adaptive Cruise Control is not a substi-tute for the driver's attention and judg-ment. The driver is always responsible forensuring the vehicle is driven in a safemanner, at the appropriate speed, with anappropriate distance to other vehicles,and in accordance with current trafficrules and regulations.
NOTE
Depending on market, this function may be either Standard or Optional.
Adaptive Cruise Control regulates speed by accelerating and braking. It is normal for the brakes to emit a slight sound when they arebeing used to adjust speed. Adaptive Cruise Control always attempts to regu- late speed smoothly. The driver must apply thebrakes in situations requiring immediate braking.For example, when there are great differences inspeed between vehicles or if the vehicle aheadbrakes suddenly. Due to limitations in the radarsensor, braking may occur unexpectedly or not atall. Adaptive Cruise Control is designed to follow a vehicle ahead in the same lane and maintain atime interval to that vehicle set by the driver. If theradar sensor does not detect a vehicle ahead, itwill instead maintain the speed set by the driver.This will also happen if the speed of the vehicleahead exceeds the set speed for your vehicle.
• Adaptive Cruise Control can follow anothervehicle at speeds from a standstill up to200 km/h (125 mph).
WARNING
• Adaptive Cruise Control is not a collision avoidance system. The driver is alwaysresponsible and must intervene if the sys-tem fails to detect a vehicle ahead.
• Adaptive Cruise Control does not brakefor people or animals and does not brakefor small vehicles, such as bikes andmotorcycles. Similarly, it does not brakefor low trailers, oncoming, slow-moving orstationary vehicles and objects.
• Do not use Adaptive Cruise Control indemanding situations, such as in city traf-fic, at intersections, on slippery surfaces,with a lot of water or slush on the road, inheavy rain/snow, in poor visibility, onwinding roads, or on on/off ramps.
CAUTION
Maintenance of Adaptive Cruise Control com- ponents may only be performed by a work-shop – an authorized Volvo workshop is rec-ommended.
41
Adaptive Cruise Control
42 Note: This illustration is general and details may vary depending on model.

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298 •
Managing Adaptive Cruise Control speed (p. 300)
• Setting Adaptive Cruise Control time inter-vals (p. 301)
• Deactivating/reactivating Adaptive CruiseControl (p. 302)
• Passing assistance with Adaptive CruiseControl (p. 304)
• Starting passing assistance with AdaptiveCruise Control (p. 304)
• Limitations of passing assistance with Adap-tive Cruise Control (p. 305)
• Switching target vehicles with AdaptiveCruise Control (p. 305)
• Automatic braking with Adaptive Cruise Con-trol (p. 306)
• Adaptive Cruise Control limitations (p. 307)
• Switching between Cruise Control and Adap-tive Cruise Control (p. 307)
• Symbols and messages for Adaptive CruiseControl (p. 309)
Adaptive Cruise Control andcollision warning
Collision warning light on the windshield 43
.
Adaptive Cruise Control utilizes approx. 40% of the vehicle's braking capacity. If a situationrequires more braking force than the AdaptiveCruise Control can provide, and if the driver doesnot apply the brakes, a warning light and audiblewarning signal will be activated to alert the driverthat immediate action is required.
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
Adaptive Cruise Control only issues a warning for vehicles detected by its radar unit – thus, awarning may come after a delay or not at all.
• Never wait for a warning. Apply the brakes when necessary.
Related information
•
Adaptive Cruise Control
* (p. 295)
43
Note: This illustration is general and details may vary depending on model.

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Head-up display for Adaptive CruiseControl with collision warning
In vehicles equipped with a head-up display *, a
flashing warning symbol will be displayed on the windshield.
Collision warning symbol on the windshield 44
.
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
• Adaptive Cruise Control
* (p. 295)
Activating and starting AdaptiveCruise Control Adaptive Cruise Control (ACC 45
) must first be
activated and then started before it can regulate speed and distance.
Putting Adaptive Cruise Control in standby mode
Note: This illustration is general and details may vary depending on model.
Adaptive Cruise Control is in standby mode each time the engine is started. To put ACC in standbymode from active mode:
–Press ◀ (2) or ▶ (3) on the steering wheel
keypad and scroll to the
(4) function.
> The symbol will appear and Adaptive Cruise Control will go into standby mode.
Starting/activating Adaptive Cruise Control
To start ACC:
• 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).
Note: This illustration is general and details may vary depending on model.
44
Note: This illustration is general and details may vary depending on model.
45 Adaptive Cruise Control

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Automatic transmission
Adaptive Cruise Control can follow another vehi- cle at speeds from a standstill up to 200 km/h(125 mph). The lowest speed that can be set for Adaptive Cruise Control is 30 km/h (20 mph). When fol-lowing another vehicle, ACC can monitor thatvehicle's speed and slow your own vehicle downto a standstill, but it is not possible to set speedslower than 30 km/h (20 mph). The highest possible speed that can be set is 200 km/h (125 mph).
Related information
•Adaptive Cruise Control
* (p. 295)
Setting Adaptive Cruise Controltime intervals Adaptive Cruise Control (ACC 47
) can be set to
various time intervals to the vehicle ahead.
Different time intervals to the vehicle ahead can be selectedand are shown in the instru-ment panel as 1–5 horizontalbars. The more bars, the longerthe time interval. One bar rep-resents an interval of
approx. 1 second to the vehicle ahead. 5 barsrepresents approx. 3 seconds. The same symbol appears when the Distance Alert function is activated.
NOTE
When the symbol in the instrument panel shows two vehicles, ACC is following the vehi-cle ahead at a preset time interval. When only one vehicle is shown, there is no vehicle ahead within a reasonable distance.
Controls for setting a time interval 48
.
Reduce the time interval
Increase the time interval
Distance indicator
–Press the (1) or (2) button to decrease or increase the time interval.
> The distance indicator (3) shows the cur-
rent time interval.
In order to help your vehicle follow the vehicle ahead as smoothly and comfortably as possible,Adaptive Cruise Control allows the time intervalto vary noticeably in certain situations. At lowspeeds, when the distance to the vehicle aheadis short, Adaptive Cruise Control increases thetime interval slightly.
47 Adaptive Cruise Control
48 Note: This illustration is general and details may vary depending on model.

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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