2017 VOLVO XC90 TWIN ENGINE HYBRID Owners Manual

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.287
•Passing Assistance with Adaptive CruiseControl or Pilot Assist-2 (p. 289)
•Adaptive Cruise Control (ACC) symbols andmessages (p. 293)
•Distance Alert* (p. 279)
Changing Adaptive Cruise Control(ACC) speed
ACC makes it possible to set various speeds.

Changing a set speed
Function buttons and symbols
–Change a set speed by pressing the (1)or — (3) buttons briefly or by pressing andholding them:
•Press briefly: changes speed in+/– 5 mph (+/– 5 km/h) increments.Each press changes the vehicle's speedby +/– 5 mph (+/– 5 km/h).
•Press and hold: changes the speed+/– 1 mph (+/– 1 km/h) at a time.Release the button when the set speedindicator (4) has moved to the desiredspeed.
If speed is increased by pressing the accelerator
pedal before the button is pressed, the vehi-cle's speed when the button is pressed willbecome the set speed assuming that the accel-erator pedal is still depressed when the button ispressed.
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.
The Adaptive Cruise Control can follow anothervehicle from a standstill up to 125 mph(200 km/h). Always observe posted speed limits.
The lowest speed that can be set for ACC is20 mph (30 km/h). However, ACC can monitorand react to the speed of the vehicle ahead downto a standstill.
The highest speed that can be set/stored isapprox. 125 mph (200 km/h). Always observeposted speed limits.

Related information
•Adaptive Cruise Control (ACC)* (p. 281)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.288
Setting an Adaptive Cruise Controltime interval
ACC makes it possible to set various time inter-vals to the vehicle ahead.
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 vehi-cles represents a time interval of approximately1 second; 5 bars is approximately 3 seconds.
The same symbol appears if Distance Alert isactivated.
•If the symbol shows two vehicle's, ACC isactively following the vehicle ahead (a targetvehicle).
•If only one vehicle is displayed, ACC is notactively following another vehicle.

Changing a time interval
Controls for setting a time interval
Reduce the time interval
Increase the time interval
Distance/time indicator
–Press buttons (1) or (2) to reduce orincrease the time interval.
>The distance/time indicator (3) shows thecurrent time interval.
In order to follow the vehicle ahead as smoothlyas possible, ACC allows the time interval to varyconsiderably in certain situations. At low speeds,when the distance to the vehicle ahead is short,ACC increases the time interval slightly.
•If ACC does not seem to react when it is putin active mode, this may be because the set
time interval to the vehicle ahead does notallow an increase in speed.
•The higher the speed, the greater the dis-tance to the vehicle ahead for a given timeinterval.
•Only use time intervals permitted by localtraffic regulations.

WARNING
•Only use a time interval that is suitable incurrent traffic conditions.
•A short time interval gives the driver lim-ited reaction time if an unexpected situa-tion occurs in traffic.

Related information
•Adaptive Cruise Control (ACC)* (p. 281)
•Starting and activating Adaptive CruiseControl (ACC)* (p. 284)
•Deactivating/resuming Adaptive CruiseControl (ACC) (p. 285)
•Passing Assistance with Adaptive CruiseControl or Pilot Assist-2 (p. 289)
•Adaptive Cruise Control (ACC) symbols andmessages (p. 293)
•Distance Alert* (p. 279)

DRIVER SUPPORT
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* Option/accessory, for more information, see Introduction.289
Passing Assistance with AdaptiveCruise Control or Pilot Assist-2
ACC or Pilot Assist can assist the driver whenpassing other vehicles.

How passing assistance works
When ACC or Pilot Assist is following anothervehicle and the driver indicates that he/she isabout to pass that vehicle by using the left turnsignal, ACC or Pilot Assist will begin acceleratingtoward the vehicle ahead before your vehicle hasmoved into the passing lane.
The function will then delay a speed reduction toavoid early braking as your vehicle approachesthe slower-moving vehicle.
The function is active until your vehicle haspassed the other vehicle.

WARNING
Be aware that this function may be activatedin situations other than when passing a vehi-cle, such as if the turn signal is used to indi-cate a lane change or to indicate a turn. Thevehicle will accelerate briefly.

Using passing assistance
To activate passing assistance:
•Your vehicle (ACC or Pilot Assist) must befollowing another vehicle (the target vehicle).
•Current speed must be at least approx.45 mph (70 km/h ).
•The speed set for ACC or Pilot Assist mustbe high enough to safely pass the vehicleahead.
Starting passing assistance
To start a passing assistance sequence:
•Activate the left turn signal.

Passing assistance limitations
WARNING
The driver should be prepared for suddenchanges when passing assistance is used. Incertain cases, there may be undesired accel-eration.
Certain situations should be avoided, such as:
•If the vehicle is approaching an exit to theleft or a left turn.
•If the vehicle ahead slows down beforeyour vehicle has moved into the passinglane.
•Traffic in the passing lane slows down.
Passing assistance in these situations can bedeactivated by putting ACC or Pilot Assist instandby mode.

Related information
•Pilot Assist* (p. 295)
•Pilot Assist-2* (p. 305)
•Adaptive Cruise Control (ACC)* (p. 281)
Changing target vehicles andautomatic braking with AdaptiveCruise Control (ACC)
At certain speeds, Adaptive Cruise Control canchange target vehicles and automatically applythe brakes.
Changing target vehicles
If the target vehicle turns suddenly, there may be a sta-tionary vehicle ahead
When ACC is actively following another vehicle atspeeds under 20 mph (30 km/h) and changestargets from a moving vehicle to a stationary one,the system will brake for the stationary vehicle.

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DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.290

WARNING
If ACC changes targets from a moving vehicleto a stationary one at speeds above 20 mph(30 km/h), the system will not react to thestationary vehicle and will accelerate to thepreviously set speed.
The driver must actively apply the brakes toslow/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 determineif the 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 function
In 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 inone of the following ways:
•Press the button on the left-sidesteering wheel keypad.
•Press the accelerator pedal.
>ACC will resume following the vehicleahead (target vehicle) if it begins to movewithin approx. 6 seconds.
NOTE
ACC can keep the vehicle at a standstill forup to 5 minutes, after which the parking brakewill be set and ACC will go into standbymode.
The parking brake has to be released beforeACC 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 ACC will gointo standby mode.
This means that the brakes will be released andthe vehicle can begin to roll.
The driver must actively apply the brakes to keepthe vehicle at a standstill.
This can occur in the following situations:
•the driver presses the brake pedal
•the parking brake is set
•the gear selector is moved to the P, N or Rpositions
•the driver puts ACC in standby mode.
Automatically setting the parking brake
In certain situations, the parking brake is setautomatically to help keep the vehicle at a stand-still.
This occurs if ACC keeps the vehicle at a stand-still with the brakes and:
•the driver unbuckles the seat belt or opensthe door
•ACC has kept the vehicle at a standstill formore than approx. 5 minutes
•the brakes overheat
•the engine is turned off.

Related information
•Adaptive Cruise Control (ACC)* (p. 281)
•Auto-hold brake function (p. 379)
•Parking brake (p. 382)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.291
Adaptive Cruise Control (ACC) -troubleshooting
If this symbol is displayed in the instru-ment panel and the messageWindscreen sensor Sensorblocked, see Owner's manualappears, the ACC radar sensor is blocked andcannot detect vehicles ahead.
This message also indicates that the followingsystems may have reduced functionality:
•Distance Alert
•City Safety
•Driver Alert Control
•Pilot Assist
•Lane Keeping Aid (LKA)
•Road Sign Information (RSI)
The following table lists possible causes for this message 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 theradar signals.No action possible. A very wet or snow-covered road surface may affect thefunction of the radar.
The windshield in front of the radar is clean but the message remains in thedisplay.Wait a short time. It may take several minutes for the radar to detect that it isno longer obstructed.
A text message can be erased by briefly pressingthe O button on the right-side steering wheelkeypad. If the message recurs, contact a trainedand authorized Volvo service technician orretailer.

Related information
•Adaptive Cruise Control (ACC)* (p. 281)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.292
Adaptive Cruise Control (ACC) -limitations
Adaptive Cruise Control (ACC) functionality maybe limited in certain situations.

Steep roads and/or heavy loads
Adaptive Cruise Control is primarily intended foruse on relatively level roads. The function may notbe able to maintain the correct time interval tothe vehicle ahead when driving down steep hills.The driver should be attentive and prepared toapply the brakes in these situations.
Do not use Adaptive Cruise Control when thevehicle is transporting a heavy load or if it is tow-ing a trailer.

Additional information
•The Off Road drive mode cannot beselected if Adaptive Cruise Control is acti-vated.
•Adaptive Cruise Control uses the vehicle'scamera and radar sensor, which have certaingeneral limitations. See the articles "Cameralimitations" and "Radar sensor limitations"for additional information.

Related information
•Adaptive Cruise Control (ACC)* (p. 281)
•Radar sensor limitations (p. 319)
•Camera limitations (p. 323)

DRIVER SUPPORT
}}
* Option/accessory, for more information, see Introduction.293
Adaptive Cruise Control (ACC)symbols and messages
A number of ACC symbols and/or messagesmay appear in the instrument panel or the head-up display*.
Several examples3 are provided here.
This illustration4 shows that ACC is set at aspeed of 68 mph (110/km/h) and that there isno vehicle ahead to follow.
This illustration4 shows that ACC is set at aspeed of 68 mph (110/km/h) and is followinganother vehicle traveling at the same speed.
The following table lists several ACC-related symbols and messages.
SymbolMessageExplanation
WHITE symbolACC is in active mode and maintaining the set speed.
GRAY symbol and UnavailableACC is in standby mode.
3In the following illustrations, the optional RSI (Road Sign Information) function is indicating that the posted speed limit is 80 mph (130 km/h).4The illustration is generic. 110 km/h is approx. 68 mph.

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DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.294
SymbolMessageExplanation
Adaptive cruise
Service required
The system is not functioning properly. Contact a trained and qualified Volvo Service tech-nician.
Windscreen sensor Sensor blocked, seeOwner's manualClean the windshield in front of the camera/radar sensor.
A text message can be erased by briefly pressingthe O button on the right-side steering wheelkeypad. If the message recurs, contact a trainedand authorized Volvo service technician orretailer.

Related information
•Adaptive Cruise Control (ACC)* (p. 281)
•Road Sign Information (RSI)* (p. 346)