2015 VOLVO XC90 sensor

LOCKS AND ALARM
* Option/accessory, for more information, see Introduction.229
Operation
–Move your foot back and forth under sensor on the underside of the rear bumper. It is notnecessary to touch the bumper.
> A brief audible signal will sound when the
tailgate begins to open/close.
If several attempts have been made to open/ close the tailgate without a remote key in yourpossession, the function will time out and will notbe available for a short period. The tailgate can be closed (or closed and locked) by pressing the
or buttons on the lower
edge of the tailgate 9
. It can also be operated
manually or by pressing the button on the lighting panel in the passenger compartment or on theremote key.
NOTE
Foot operation may not be possible if the sensor is obstructed by snow, ice, etc.
Related information
• Power tailgate
* (p. 235)
• Locking/unlocking the tailgate (p. 233)
• Remote key's range (p. 224)
Locking and unlocking confirmation
The turn signals can be used to indicate that the vehicle has been locked/unlocked with theremote key. These settings can also bechanged.
Exterior confirmation
• Locking: the turn signals flash once and the door mirrors will fold in (retract) 10
• Unlocking: the turn signals flash twice andthe door mirrors will fold out 10
When the vehicle is locked, confirmation will only be given if all doors/tailgate and the hood areclosed. If the vehicle is locked while only the driver's door is closed, all doors/tailgate will lock but confirma-tion will only be given when all doors/tailgate/hood are closed.
Interior confirmation
Lock and alarm indicator light on the dashboard
A long flash indicates the vehicle is locked. While the vehicle is locked, the indicator will flashbriefly. LEDs in the lock buttons on the doors illuminate when the doors are locked.
9 Vehicles equipped with the optional Passive Entry system only.
10 Models with retractable door mirrors only.

LOCKS AND ALARM
* Option/accessory, for more information, see Introduction.
232
Automatic lockingAll of the doors/tailgate can be locked automati- cally when the vehicle begins to move. To acti-vate/deactivate this setting: 1.
Tap
Settings in the center display's Top
view.
2. Tap
My CarLocking
3. Select Auto Door Locking
>Doors and tailgate lock when the vehicle moves will be displayed and the
doors and tailgate will lock automatically when the vehicle begins to move.
Related information
• Locking/unlocking from outside the vehicle (p. 232)
• Child safety locks (p. 218)
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 therear bumper *.
The lock/unlock settings can be changed in the center display's Top view. Go to:
SettingsMy CarRemote Unlockand select Unlock All Doors or Driver Door
Only.
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.
If the locks repeatedly do not react when the unlock button is pressed, it may be necessary toreplace the battery in the remote. In this case, the driver's door can be unlocked with the detacha-ble key blade.
Keyless Passive Entry
*If the vehicle is equipped with this system, it isonly necessary to have a remote key in your pos-session to operate the central locking system. Models with Passive Entry have an indentation on the outside of the handle for locking the vehicleand a pressure-sensitive area on the inside of thehandle for unlocking. The tailgate has a rubber-ized button used only for locking/unlocking.
Outer indentation for locking, the pressure sensitive area on the inside of the handle is for unlocking

LOCKS AND ALARM
* Option/accessory, for more information, see Introduction.235
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
or by moving your foot under a sensor under the rear bumper *.
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 foot under 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 *13
To close the tailgate 14
:
–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
13 Models equipped with the optional Passive Entry system have a button to close the tailgate and a button to close and lock the tailgate.
14 See also the article "Foot movement tailgate opening/closing."

LOCKS AND ALARM
* Option/accessory, for more information, see Introduction.
236
–Press the button 13
on the lower edge of
the tailgate.
> The tailgate will close automatically but will not be locked .
–Press the button13
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 moving and an audible signal will sound.
• While closing: the tailgate will stop andreturn to the maximum programmable open-ing position. An audible signal will sound.
WARNING
Be sure that no one is near the tailgate when it is opened or closed automatically. The tail-gate should never be obstructed in any waywhen it is operated.
13
Models equipped with the optional Passive Entry system have a button to close the tailgate and a button to close and lock the tailgate.

DRIVER SUPPORT
242
CauseAction
Water or snow on the surface of the road swirl up and block radar signals or the camera's view.No action. The driver should be extra alert in conditions of this type.
There is dirt between the inside of the windshield and the camera/radar sensor.Have the area of the windshield cleaned by a trained and quali- fied Volvo service technician.
High temperaturesIf the temperature in the passenger compartment is very high, the camera and radar sensor may betemporarily turned off for approx. 15 minutesafter the engine has been started to protect theirelectronic components. When the temperaturehas cooled sufficiently, the camera and radarsensor will restart automatically.Damaged windshield
CAUTION
•Service and maintenance on City Safety may only be carried out by a trained andqualified Volvo service technician.
• If a crack, scratch or stone chip shouldoccur in the section of the windshield infront the camera/radar sensor, contact atrained and qualified Volvo service techni-cian to repair or replace the windshield.Failing to do so may result in reducedCity Safety functionality.
To help prevent limited or reduced functional- ity, please also observe the following:
• Volvo recommends that cracks, scratches or stone chips on the windshield in front of the camera/radar sensor should
not
be repaired; in such cases, the entire windshield should be replaced.
• Before the windshield is replaced, con-tact a Volvo retailer to ensure that thecorrect windshield is ordered and instal-led. If the wrong type of windshield is
used, this may cause City Safety to func- tion improperly or not at all.
• Volvo recommends the use of only Genu-ine Volvo Replacement Windshields.
• When replacing windshield wipers, usethe same type or ones approved by Volvo.
After the windshield has been replaced, the camera/radar sensor will have to be recalibra-ted by a trained and qualified Volvo servicetechnician to help ensure proper function ofall of the vehicle's camera-/radar-based sys-tems.
MaintenanceIn order for camera and radar sensor to function properly, the area of the windshield must be keptfree of dirt, ice, snow, etc. and should be washedregularly with a suitable car washing detergent.
Related information
• City Safety
™ (p. 273)
• Radar sensor limitations (p. 245)
• Driver support systems (p. 240)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
244
Driver support system radar unit
The radar unit is used by a number of driver sup- port systems to e.g., help detect other vehicles.
The radar unit is used by the following functions:
• Distance Alert
*
• Adaptive Cruise Control
*
• Pilot Assist
*
• City Safety
Any modifications to the radar unit may make its use illegal.
Related information
• Radar sensor (p. 269)
• Distance Alert
* (p. 314)
• Adaptive Cruise Control (ACC)
* (p. 252)
• Pilot Assist
* (p. 259)
• City Safety
™ (p. 273)

DRIVER SUPPORT
245
Radar sensor limitations
The radar sensor used by several of the driver support systems has certain limitations, whichalso affect the systems using it.
Obstructions
The marked area must not be obstructed in any way. This area of the windshield should always be kept clean
The radar sensor is located at the upper, center section of the windshield along with the camera.
WARNING
Never place any objects, decals, etc., on the windshield in front of the camera/radar unit.This could reduce or block these components'functions, and could cause one or more of thesystems that utilize the them to stop function-ing.
If this symbol and
Windscreen
sensor Sensor blocked, see
Owner's manual appear in the instru-
ment panel, this indicates that the
camera and/or radar sensor cannot detect other vehicles ahead.
The following table shows some of the situations that can cause the message to be displayed andsuggested actions.
CauseAction
The area of the windshield in front of the camera/radar sensor is dirty or covered by ice or snow.Clean the windshield or remove the ice/ snow.
Thick fog or heavy rain/snow blocks reduces the camera/radar sensor's range of visibility.No action. The driver should be extra alert in conditions of this type.

DRIVER SUPPORT
246
CauseAction
Water or snow on the surface of the road swirl up and block radar signals or the camera's view.No action. The driver should be extra alert in conditions of this type.
There is dirt between the inside of the windshield and the camera/radar sensor.Have the area of the windshield cleaned by a trained and quali- fied Volvo service technician.
The radar sensor's capacity to detect vehicles ahead is impeded:
• if the speed of the vehicle ahead differs greatly from your vehicle's speed.
Limited field of visionThe radar sensor has a limited field of vision. In some situations it may detect a vehicle later thanexpected or not detect other vehicles at all.
Radar sensor's field of vision
In certain situations, the radar sensor cannot detect vehicles at close quarters, for example a vehicle that suddenly enters the lanebetween your vehicle and the target vehicle.
Small vehicles, such as motorcycles, or vehi- cles not driving in the center of the lane mayremain undetected.
In curves, the radar sensor may detect the wrong vehicle or lose sight of the target vehi-cle.
Low trailer in the radar shadow
Low trailers may also be difficult to detect or may not be detected at all. The driver should be extraalert in situations of this type.