2017 VOLVO XC90 sensor

LOCKS AND ALARM
* Option/accessory.
224
Locks and remote keys
The vehicle can be locked and unlocked in vari- ous ways and there are several types of remotekeys that can be used.
Locking/unlocking/opening/closingThe vehicle can be locked/unlocked from the passenger compartment, using the buttons onthe remote key or by using the optional PassiveEntry system where it is only necessary to have akey in your possession to lock or unlock thedoors. On models equipped with a power tailgate *, it can
also be opened/closed by moving your foot under a sensor * beneath the rear bumper.
If for any reason a remote key does not function properly, it may be necessary to replace its bat-teries but the vehicle can always be locked orunlocked manually using the remote key'sdetachable key blade.
Remote keyThe remote key does not have to be physicallyhandled in order to start the engine because thevehicle is equipped with the standard PassiveStart system (the key only needs to be in thefront part of the passenger compartment). If thevehicle is equipped with the optional PassiveEntry system that enables keyless entry and start,the key can be anywhere in the vehicle when theengine is started. Models with Passive Entry
* also have an extra,
smaller key without buttons called a Key Tag. Additional keys can be ordered from a Volvo retailer.
Related information
• Immobilizer (p. 224)
• Alarm (p. 245)
• Child safety locks (p. 246)
• Remote key (p. 227)
• Foot movement tailgate operation
* (p. 232)
• Locking/unlocking from inside the vehicle(p. 235)
• Locking/unlocking from outside the vehicle(p. 233)
• Locking/unlocking the tailgate (p. 238)
• Starting the engine (p. 382)
Immobilizer
The immobilizer is a start inhibitor that helps pre- vent unauthorized persons from starting theengine.
Each of the keys supplied with your vehicle con- tains a unique coded transponder. The vehiclecode in the key is transmitted to the vehicle'signition system where it is compared to the codestored in the start inhibitor module. The following message (which may appear in the instrument panel) is related to the immobilizer:
Symbol Message Explanation
Vehicle key not found See Owner'smanualRemote key not recognized duringstart. Place theremote key on thekey symbol in thetunnel console cupholder and try tostart the vehicleagain.
Related information
•Remote key's range (p. 229)
• Remote key (p. 227)

LOCKS AND ALARM
* Option/accessory.
232
Foot movement tailgate operation *
The foot movement sensor * simplifies opening or
closing the tailgate if your hands are full. 5
The foot movement sensor is located to the left of cen- ter under the rear bumper
6
NOTE
One of the remote keys must be in your pos- session or within range when you are behindthe vehicle in order to activate the foot move-ment sensor, even if the tailgate is alreadyunlocked. This is done to help prevent thesensor from inadvertently opening the tail-gate, for example, in a car wash. Be sure that the key is not within range when the vehicle is in an automatic carwash.
Operation
Kicking motion under the sensor's activation area
Opening/closing
–With the remote key within range, move your foot slowly forward in a kicking motion belowthe left section of the rear bumper withouttouching the bumper and take a step back.
> A brief audible signal will sound when the
tailgate begins to open/close.
The tailgate can be closed (or closed and locked) by pressing the
or buttons on the lower
edge of the tailgate 7
.
It can also be operated manually or by pressing the button on the lighting panel in the passengercompartment or on the remote key. If several attempts have been made to open/ close the tailgate using the foot sensor without aremote key within range, the function will timeout and will not be available for a short period.
NOTE
Foot operation may not be possible or func- tion normally if the sensor is obstructed bysnow, ice, dirt, etc.
5 Models equipped with the optional power tailgate only.
6 If the vehicle is equipped with a skid plate/diffuser *, the sensor is located under the left corner of the bumper.
7 Vehicles equipped with the optional Passive Entry system only.

LOCKS AND ALARM
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* Option/accessory.233
Interrupting opening/closing
–Move your foot slowly forward in a kicking motion while the tailgate is opening/closingto stop its movement.
No remote keys need to be within range in orderto interrupt movement of the tailgate.
Vehicles equipped with a skid plate/ diffuser *
If the vehicle is equipped with a skid plate/ diffuser*, the sensor is located under the left cor-
ner of the rear bumper.
Sensor location on vehicles equipped with a skid plate/ diffuser *
To open/close the tailgate, make the kicking motion from the side of the rear bumper.
Kicking motion under the sensor's activation area
Related information
•Power tailgate
* (p. 240)
• Locking/unlocking the tailgate (p. 238)
• Remote key's range (p. 229)
Locking/unlocking from outside the vehicle The buttons on the remote key can be used to lock or unlock all doors and the tailgate at thesame time. This can also be done without press-ing the remote key buttons on models equippedwith the optional keyless Passive Entry system. The power tailgate
* can also be opened/closed
by moving your foot under a sensor beneath the rear bumper.
Locking and unlockingThe lock/unlock settings can be changed in the center display's Top view. Go to:
SettingsMy CarRemote and
Interior Unlock and select Unlock All Doors orSingle Door.
In order to lock the vehicle, the driver's door must be closed. If the tailgate or any of the other doorsare open, they will be locked and the alarm will bearmed when they are closed.
NOTE
Be sure the remote key is outside of the vehi- cle before the other doors/tailgate are closedto help avoid locking the remote inside thevehicle.
The settings made for the Remote and Interior
Unlock function also affect the central locking

LOCKS AND ALARM
* Option/accessory.
240
Power tailgate *
The optional power tailgate can be opened/ closed in several ways.
The power tailgate can be opened/closed using the
button on the lighting panel in the pas-
senger compartment, the
on the remote key,
by moving your foot under a sensor under the rear bumper * or manually.
WARNING
When operating the tailgate manually, do not use force to open or close it. This could resultin injury.
Buttons in the lower edge of the tailgate
Button on the lighting panel in the passenger compart- ment
Opening the tailgateThe power tailgate can be opened electrically by:
• Pressing and holding the
button on the
lighting panel until the tailgate begins to open.
• Pressing and holding the
button on the
remote key until the tailgate begins to open.
• Pressing lightly on the rubber-covered button under the tailgate's outside handle.
• Moving your foot under a sensor under the rear bumper
*.
Closing the tailgateThe tailgate can be closed by moving your footunder a sensor beneath the rear bumper *, by
pressing the button on the lighting panel, with the remote key or by pressing the button on the lower edge of the tailgate *14
To close the tailgate 15
:
–Press the button on the lighting panel
or on the
button on the remote key.
> The tailgate will close automatically and audible signal will sound. This will not
lock the tailgate.
Buttons on the lower edge of the tailgate
14 Models equipped with the optional Passive Entry system have a button to close the tailgate and a button to close and lock the tailgate.
15 See also the article "Foot movement tailgate opening/closing."

LOCKS AND ALARM
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* Option/accessory.241
–Press the button14
on the lower edge of
the tailgate.
> The tailgate will close automatically but will not be locked .
–Press the button14
on the lower edge of
the tailgate.
> The tailgate will close automatically. The tailgate and doors will also be locked and
the alarm will be armed.
If the remote key is not close enough to the tail- gate, automatic locking/unlocking/opening/clos-ing will not be possible. Three short audible sig-nals will sound.
Interrupting opening/closing
–This can be done in five ways: • Press the button on the lighting panel
• Press the button on the remote key
• Press either of the buttons on the lower edge of the tailgate
• Press lightly on the rubber-covered buttonunder the tailgate's outside handle
• Move your foot under a sensor beneath the rear bumper
*
> The tailgate will stop moving
Programming the tailgate's maximum opening angle
The tailgate's maximum opening angle can be programmed, for example, if the tailgate has to beopened in a garage with a low ceiling. Programming the opening angle:
–Open the tailgate manually to the desired angle and press and hold the closing buttonon the tailgate's lower edge for at least 3seconds. Release the tailgate.
> Two audible signals will sound to indicate that the selected opening angle has been stored.
Erasing tailgate programming
–Open the tailgate manually to its highest position and press and hold the closing but-ton on the tailgate's lower edge for at least 3seconds. Release the tailgate.
> Two audible signals will sound to indicate that the programmed opening angle has been erased.
NOTE
If the tailgate has been opened and closed continuously too long, the automatic functionwill be deactivated to avoid overloading theelectrical system. The automatic function canbe used again after approximately 2 minutes. If the vehicle's battery has been discharged or disconnected, or if the tailgate has been openfor more than 24 hours, the tailgate must beopened and closed once manually to resetthe system.
Pinch protectionIf the tailgate is obstructed when being opened/ closed, a pinch protection mechanism is acti-vated.
• While opening: the tailgate will stop movingand an audible signal will sound.
• While closing: the tailgate will stop andreturn to the currently programmed maximumopening position. An audible signal willsound.
WARNING
Pay attention to the risk of injury when open- ing/ closing the tailgate. Before opening/closing: Make sure that no one is in the pathof the tailgate as an injury could occur.
14
Models equipped with the optional Passive Entry system have a button to close the tailgate and a button to close and lock the tailgate.

LOCKS AND ALARM
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* Option/accessory.245
Alarm
The alarm system provides a warning if an attempt is made to break into the vehicle.
The following conditions will trigger the alarm:
• a door/hood/tailgate are opened
• the battery is disconnected
• the alarm siren is disconnected
If a problem is detected in the alarm system, this symbol and
Alarm
system failure Service required will
be displayed in the instrument panel.
Do not attempt to repair any of the components in the alarm system yourself; this could affect theinsurance policy on the vehicle. Contact a trainedand qualified Volvo service technician.
NOTE
One of the alarm sensors, which is sensitive to metallic objects, is located under the tunnelconsole cup holders. Avoid leaving coins,keys, etc., in the cup holders because theymay inadvertently trigger the alarm.
Arming the alarm
–Lock the vehicle by pressing the remote key's lock button. On models with theoptional Passive Entry system, the vehiclecan also be locked by pressing the outerindentation for locking on one of the doorhandles or by pressing the tailgate's rubber-ized pressure plate. If the vehicle is equipped with a power tail- gate *, the button on the lower edge of the
tailgate can also be used to lock the vehicle and arm the alarm.
Disarming the alarmThe alarm can be disarmed by: • Unlock the vehicle by pressing the remote key's unlock button
• Pressing the pressure-sensitive area on theinside of one of the door handles on modelswith the optional Passive Entry system.
• Pressing the tailgate's rubberized pressureplate on models with the optional PassiveEntry system.
Turning off a triggered (sounding)
alarm
–Press the remote key's unlock button or put the ignition in mode I by turning the start
knob to START and releasing it.
Alarm signalsThe following occurs if the alarm has been trig- gered:
• A siren will sound for 30 seconds or until thealarm is turned off
• All turn signals flash for 5 minutes or untilthe alarm is turned off
If the door that triggered the alarm is left open,
the alarm cycle will be repeated 10 times.
Alarm indicatorA red indicator light on the upper side of thedashboard shows the alarm's status:
• Indicator off: the alarm is disarmed
• Indicator flashes once every two seconds: the alarm is armed
• Indicator flashes quickly after the alarm hasbeen disarmed (max. 30 seconds) or until

DRIVER SUPPORT
* Option/accessory.
250
Driver support systems
The vehicle is equipped with a number of driver support systems that help provide the driver withactive/passive support.
Some of these systems are standard while others are optional and they are designed to e.g., helpthe driver maintain a set speed or a set distanceto a vehicle ahead, or warn the driver of a poten-tial collision situation and in certain cases applythe brakes if necessary. Certain optional systemscan also assist in various parking situations.
Related information
• Adjustable steering force
* (p. 250)
• Electronic Stability Control (ESC) (p. 251)
• Roll stability control (RSC) (p. 255)
• Speed limiter (SL)
* (p. 255)
• Distance Alert
* (p. 267)
• Cruise Control (CC) (p. 262)
• Adaptive Cruise Control (ACC)
* (p. 269)
• Pilot Assist
* (p. 283)
• Driver support system radar sensor (p. 296)
• Driver support system camera (p. 300)
• City Safety
™ (p. 304)
• Blind Spot Information (BLIS)
* (p. 317)
• Cross Traffic Alert (CTA)
* (p. 319)
• Road Sign Information (RSI)
* (p. 324) •
Driver Alert Control (DAC) (p. 326)
• Driving lane assistance (p. 328)
• Run-off Mitigation (p. 333)
• Park Assist
* (p. 336)
• Park Assist Camera (PAC)
* (p. 340)
• Park Assist Pilot (PAP)
* (p. 346)
Adjustable steering force *
Steering force increases with the speed of the vehicle to give the driver an enhanced sense ofcontrol and stability. At low speed the vehicle iseasier to steer in order to facilitate parking, etc.
Changing the steering force levelTo change the level of steering force, see theinformation under the heading "individual" in arti-cle "Drive modes" for additional information. On models not equipped with the drive mode control in the center console, the selection ismade in the center display's Top view under:
SettingsMy CarDrive ModesSteering force
NOTE
•This steering force level menu function cannot be accessed when the vehicle isin motion.
• In certain situations, the power steeringfunction may become too hot and mustbe temporarily cooled. During cooling,power steering effect will be reduced andmore force may be necessary to turn thesteering wheel and a message will bedisplayed in the instrument panel.

DRIVER SUPPORT
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* Option/accessory.269
Distance Alert * limitations
Distance Alert uses the same radar sensor as Adaptive Cruise Control * and has several limita-
tions.
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.
WARNING
•
Poor weather or winding roads can affect the 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. 297)
• Distance Alert
* (p. 267)
Adaptive Cruise Control (ACC) *
ACC is an optional system designed to assist the driver by maintaining a set speed or a settime interval to the vehicle ahead.
ACC helps provide more relaxed driving on long trips on highways or other major roads in a rela-tively even flow of traffic.
The camera and radar sensor monitor the distance to the 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 the same lane and maintain a time interval to that