2017 VOLVO XC90 TWIN ENGINE HYBRID Owners Manual

DRIVER SUPPORT
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* Option/accessory, for more information, see Introduction.279
Distance Alert*
Distance Alert is a function that alerts the driverif the time interval to the vehicle ahead is tooshort.
Distance Alert is active at speeds above approxi-mately 20 mph (30 km/h) and only reacts to avehicle ahead that is driving in the same direc-tion. No information is provided for vehicles driv-ing toward you, moving very slowly, or at a stand-still.
Warning light (generic illustration)
A warning light in the windshield glows steadily ifyour vehicle is closer to the one ahead than theset time interval.

NOTE
Strong sunlight, reflections, extreme light con-trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.

NOTE
Distance Alert only monitors distance to thevehicle ahead while Adaptive Cruise Control isin standby mode or off.

WARNING
Distance Alert only indicates the distance tothe vehicle ahead. It does not affect thespeed of your vehicle.
Head-up-display *
Distance Alert symbol in the windshield (generic illustra-tion)
In vehicle is equipped with the head-up display*,the symbol in the windshield will only appear ifthe distance to the vehicle ahead is shorter thanthe preset value. However, the Show DriverSupport In Head-Up Display function has tobe activated in the Settings menu. See the article"Head-up display" for additional information.

NOTE
Strong sunlight, reflections, extreme light con-trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.

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DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.280

Related information
•Distance Alert* limitations (p. 281)
•Using Distance Alert* (p. 280)
•Head-up display (HUD)* (p. 122)
Using Distance Alert*
Distance Alert is used as follows:

Operation
Pull down the center display'sTop view and select Settingsfollowed by Distance alert.Tap to turn the function On orOff.

Setting a time interval
Controls for setting a time interval
Reduce the time interval
Increase the time interval
Distance/time indicator
–Press button (1) or (2) on the left-side steer-ing wheel keypad to reduce or increase thetime interval to the vehicle ahead.
>The indicator (3) shows the current timeinterval.
Different time intervals to thevehicle ahead can be selectedand are shown in the instru-ment panel as 1–5 horizontalbars. The greater the number ofbars, the longer the time inter-val.
One bar between the vehicles represents a timeinterval of approximately 1 second; 5 bars isapproximately 3 seconds.
The same symbol appears if Adaptive CruiseControl is activated.

NOTE
•The greater the vehicles' speed, thegreater the distance between them for aset time interval.
•The set time interval is also used byAdaptive Cruise Control*.
•Only use time intervals permitted by localtraffic regulations.

Related information
•Distance Alert* (p. 279)

DRIVER SUPPORT
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* Option/accessory, for more information, see Introduction.281
Distance Alert* limitations
Distance Alert uses the same radar sensor asAdaptive Cruise Control* and has several limita-tions.

WARNING
•The radar sensor has a limited field ofvision. 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.
WARNING
•Poor weather or winding roads can affectthe radar sensor's capacity to detect vehi-cles ahead.
•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.
For additional information, see also the article"Radar sensor limitations."

Related information
•Radar sensor limitations (p. 319)
•Distance Alert* (p. 279)
Adaptive Cruise Control (ACC)*
ACC is an optional system designed to assistthe driver by maintaining a set speed or a settime interval to the vehicle ahead.
ACC helps provide more relaxed driving on longtrips on highways or other major roads in a rela-tively even flow of traffic.
The camera and radar sensor monitor the distance tothe vehicle ahead (generic illustration - certain detailsmay vary from model to model)
The driver sets that desired speed and time inter-val to the vehicle ahead. When the camera andradar sensor detects a slower moving vehicleahead, your vehicle's speed is automaticallyadapted. When there are no longer slower mov-ing vehicles ahead, your vehicle will accelerate toresume the set speed.
ACC is designed to follow a vehicle ahead in thesame lane and maintain a time interval to that

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DRIVER SUPPORT
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vehicle set by the driver. If the radar sensor doesnot detect a vehicle ahead, ACC will insteadmaintain the speed set by the driver.
ACC is designed to smoothly regulate speed.However, the driver must apply the brakes in sit-uations that require immediate braking such aswhen there are great differences in speedbetween vehicles, or if the vehicle ahead brakessuddenly. Due to limitations in the radar sensor,braking may occur unexpectedly or not at all.
Adaptive Cruise Control can follow another vehi-cle from a standstill up to 125 mph (200 km/h).Always observe posted speed limits.
The driver can also toggle between ACC andCruise Control (CC) – see the article "Switchingbetween Cruise Control and Adaptive CruiseControl".

WARNING
•It is advisable to read through all of therelated articles pertaining to ACC (seethe list at the end of this article).
•Adaptive Cruise Control cannot cover alldriving situations and traffic, weather androad conditions.
•This system is designed to be a supple-mentary driving aid. It is not, however,intended to replace the driver's attentionand judgement. The driver is responsiblefor maintaining a safe distance and speedand must intervene if Adaptive CruiseControl does not maintain a suitablespeed or suitable distance to the vehicleahead.
•Maintenance of ACC components mayonly be performed by a trained and quali-fied Volvo technician.

Overview
The distance to the vehicle ahead (in the samelane) is monitored by a radar sensor. Your vehi-cle's speed is regulated by accelerating andbraking. The brakes may emit a sound when theyare being modulated by the adaptive cruise con-trol system. This is normal.
WARNING
•Adaptive Cruise Control is not a collisionavoidance system. The driver is alwaysresponsible for applying the brakes if thesystem does not detect another vehicle.
•Adaptive Cruise Control does not react topeople or animals, or small vehicles suchas bicycles and motorcycles. It also doesnot react to slow moving, parked orapproaching vehicles, or stationaryobjects.
•Do not use Adaptive Cruise Control indemanding driving conditions such as citydriving or other heavy traffic situations, inslippery conditions, when there is a greatdeal of water or slush on the road, duringheavy rain or snow, in poor visibility, onwinding roads or on highway on- or off-ramps.

DRIVER SUPPORT
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283

Controls
Function buttons and symbols (generic illustration)
Increases the set speed or puts ACC backinto active mode (previous settings will beresumed)
Puts ACC in active mode and stores the cur-rent speed or puts ACC in standby mode
Reduces the set speed
Increases the time interval/distance to thevehicle ahead
Reduces the time interval/distance to thevehicle ahead
Target vehicle indicator: ACC has detectedand is following a target vehicle using the settime interval
Distance/time indicator
Instrument panel
Speed indicators
Set speed
Speed of the vehicle ahead
The current speed of your vehicle
See the article "Adaptive cruise control symbolsand messages" for examples of different combi-nations of symbols, depending on the traffic sit-uation.

Collision warning
Warning light in the windshield
Adaptive Cruise Control can exert brake forcethat is equivalent to approximately 40% of thevehicle's total braking capacity.
In situations requiring more brake force thanACC can provide and if the driver does not applythe brakes, an audible signal from the City Safetysystem will sound and warning light will illuminatein the windshield to alert the driver to react.

NOTE
Strong sunlight, reflections, extreme light con-trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.

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DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.284

WARNING
Adaptive Cruise Control only warns of vehiclesdetected by the radar sensor. In some casesthere may be no warning or the warning maybe delayed. The driver should always apply thebrakes when necessary.

Head-up-display *
A flashing light alerts the driver
A flashing icon will appear in the head-up displayto alert the driver of a collision risk.

NOTE
Strong sunlight, reflections, extreme light con-trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.
Related information
•Starting and activating Adaptive CruiseControl (ACC)* (p. 284)
•Changing Adaptive Cruise Control (ACC)speed (p. 287)
•Setting an Adaptive Cruise Control timeinterval (p. 288)
•Changing target vehicles and automaticbraking with Adaptive Cruise Control (ACC)(p. 289)
•Switching between Cruise Control andAdaptive Cruise Control* (p. 278)
•Passing Assistance with Adaptive CruiseControl or Pilot Assist-2 (p. 289)
•Deactivating/resuming Adaptive CruiseControl (ACC) (p. 285)
•Adaptive Cruise Control (ACC) - trouble-shooting (p. 291)
•Adaptive Cruise Control (ACC) symbols andmessages (p. 293)
•Pilot Assist* (p. 295)
•Distance Alert* (p. 279)
•Head-up display (HUD)* (p. 122)
•Radar sensor limitations (p. 319)
Starting and activating Adaptive
Cruise Control (ACC)*
ACC must first be put in active mode before itcan be started in order to regulate speed or aset time interval to the vehicle ahead.

Starting ACC (putting it in standby
mode)
Function buttons and symbols
–Press ◀ (2) or ▶ (3) to scroll to the ACC
() function. The symbol (4) will be dis-played in the instrument panel.
>The symbol indicates that ACC has beenstarted and is in standby mode. Instandby mode, the vehicle will not main-tain a set speed or a time interval to thevehicle ahead.

DRIVER SUPPORT
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* Option/accessory, for more information, see Introduction.285

Activating ACC (putting it in active
mode and setting a speed)
Before ACC can be put in active mode:
•The driver's seat belt must be buckled andthe driver's door must be closed.
•There must be a vehicle ahead (a target vehi-cle) within a reasonable distance or yourvehicle's current speed must be at least9 mph (15 km/h).
–With the symbol displayed (ACC is in
standby mode), press the button (1) onthe left-side steering wheel keypad.
>This puts ACC in active mode and setsthe vehicle's current speed, which is indi-cated by digits in the center of the speed-ometer.
The time interval to the vehi-cle ahead will only be shownwhen two vehicles are dis-played.
A speed interval will also beindicated:
•The higher speed is the one set in ACC
•The lower one is the speed of the vehicleahead (the target vehicle).

Related information
•Adaptive Cruise Control (ACC)* (p. 281)
•Setting an Adaptive Cruise Control timeinterval (p. 288)
•Deactivating/resuming Adaptive CruiseControl (ACC) (p. 285)
Deactivating/resuming AdaptiveCruise Control (ACC)
ACC can be put temporarily in standby modeand then reactivated.
Function buttons and symbols
To temporarily deactivate and put Adaptive CruiseControl in standby mode:
–Press the button (2).
>The symbol in the instrument panelwill change colors from WHITE to GRAYand the set speed in the center of thespeedometer will change from BEIGE toGRAY.

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DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.286

WARNING
When ACC is in standby mode, the driver hasto control the vehicle's speed and distance toa vehicle ahead.
When ACC is in standby mode, the driver willbe alerted if the distance to the vehicle aheadis too short by the Distance Alert function.See the article "Distance Alert" for additionalinformation.

Standby mode due to action by the driver
ACC is temporarily deactivated and put instandby 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.
In these cases, the driver will have to regulate thevehicle's speed.
A temporary increase in speed, such as whenpassing another vehicle, does not affect the ACCset speed. The vehicle will return to the set speedwhen the accelerator pedal is released.

Automatic standby mode
ACC interacts with other systems, such asElectronic Stability Control. If any of these othersystems are not functioning properly, ACC willturn off automatically.
WARNING
If this happens, the driver will be alerted by anaudible 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.
ACC switches automatically to standby mode if:
•the vehicle's speed goes below approx.3 mph (5 km/h) and ACC cannot determineif the vehicle ahead is stationary or is anobject such as a speed bump, 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
•the driver opens the door
•the driver unbuckles the seat belt
•the engine speed (rpm) is too high/low
•the wheels lose traction
•the brake temperature is too high
•the parking brake is applied
•the stability system's ESC Sport Mode isactivated
•the Off Road drive mode is selected
•The radar sensor is covered by e.g., wet snowor if heavy rain interferes with radar waves
Reactivating ACC from standby mode
Generic illustration
To reactivate ACC after it has temporarily beenput in standby mode:
–Press the button (1).
>The vehicle will then return to the mostrecently set speed.

WARNING
There may be a significant increase in speed
after the button has been pressed.

Related information
•Adaptive Cruise Control (ACC)* (p. 281)
•Starting and activating Adaptive CruiseControl (ACC)* (p. 284)
•Setting an Adaptive Cruise Control timeinterval (p. 288)