2014 VOLVO XC90 parking sensors

03 Climate
Climate control system – general information
03
94* Option/accessory, for more information, see Introduction.
Condensation on the inside of the windows
Keeping the insides of the windows clean will help reduce the amount of condensation thatforms on the windows. Use a commercialwindow cleaning agent to clean the windows.
Ice and snow
Always keep the air intake grille at the base of the windshield free of snow.
Cabin air filter
Replace the cabin air filter with a new one at the recommended intervals. Please refer toyour Warranty and Service Records Informa-tion booklet, or consult a trained and qualifiedVolvo service technician for these intervals.The filter should be replaced more often whendriving under dirty and dusty conditions. Thefilter cannot be cleaned and therefore shouldalways be replaced with a new one.
Sensors
The sunlight sensor on the dashboard and passenger compartment temperature sensorin the ECC control panel should not be cov-ered in any way as this could cause incorrectinformation to be sent to the ECC system.
Parking the vehicle in warm weather
If your vehicle has been parked in the sun in warm weather, opening the windows andmoonroof* for several minutes before drivingwill help release the warm air from the pas-senger compartment. When the engine is run-ning, close the windows and moonroof anduse the recirculation function for severalminutes to enable the air conditioning to coolthe compartment as quickly as possible.
Windows and optional moonroof
The ECC system will function best if the win- dows and optional moonroof are closed. Ifyou drive with the moonroof open, we recom-mend that you manually adjust the tempera-ture and blower control (the LED in the AUTO
switch should be off).
Acceleration
The air conditioning is momentarily disen- gaged during full-throttle acceleration.
Climate control maintenance
Special tools and equipment are required to maintain and carry out repairs on the climatesystem. Work of this type should only bedone by a trained and qualified Volvo servicetechnician.
Refrigerant
Volvo cares about the environment. The air conditioning system in your vehicle containsa CFC-free refrigerant – R134a (HFC134a).This substance will not deplete the ozonelayer. The approximate amount of R134acontained in the system is a follows: 6-cylinder engine Single A/C system: 1.5 lbs (700 g) Dual 1
A/C system: 2.2 lbs (1000 g)
The system also uses PAG oil.
1 Includes the optional rear A/C system

06 Starting and driving
Front/rear park assist*
06
160* Option/accessory, for more information, see Introduction.
Front/rear park assist
The park assist system is designed to assist you when driving into parking spaces,garages, etc. It utilizes four ultrasound sen-sors located in one or both bumpers to meas-ure the distance to a vehicle, object, or a per-son who may be close to the front or rear ofyour vehicle. Park assist is available in two versions:
• Rear bumper only
• Front and rear bumpers
WARNING
Park Assist is an information system, NOT a safety system. This system is designedto be a supplementary aid when parkingthe vehicle. It is not, however, intended toreplace the driver's attention and judge-ment.
Function
The system is activated automatically when the vehicle is started. The indicator light in thebutton in the center console illuminates. • The front park assist system is active from the time the engine is started untilthe vehicle exceeds a speed of approxi-mately 10 mph (15 km/h). It is also activewhen the vehicle is backing up.
• Rear park assist is active when the engineis running and reverse gear has beenselected.
Rear park assistThe distance monitored behind the vehicle is approximately 5 ft (1.5 m). The signal comesfrom the rear speakers. The system must be deactivated when towing a trailer, carrying bicycles in a rear-mountedcarrier, etc, which could trigger the rear parkassist system's sensors.
NOTE
Rear park assist is deactivated automati- cally when towing a trailer if Volvo genuinetrailer wiring is used.
Front park assistThe distance monitored in front of the vehicle is approximately 2.5 ft (0.8 m). The audiblesignal comes from the audio system's frontspeakers.
• It may not be possible to combine auxili- ary headlights and front park assist sincethese lights could trigger the system'ssensors.
Activating/deactivating park assist
The system is activated automatically when the vehicle is started.
• Press the Park assist button on the center console (see page 65) to temporarilydeactivate the system(s). The indicatorlight in the button will go out when thesystem has been deactivated.
• Park assist will be automatically reactiva-ted the next time the engine is started, orif the button is pressed (the indicator lightin the button will illuminate).

06 Starting and driving
Front/rear park assist*
06
* Option/accessory, for more information, see Introduction.161
NOTE
• Front park assist is disengaged auto- matically when the parking brake isapplied.
• If the vehicle is equipped with frontand rear park assist, both systems willbe deactivated by pressing the button.
Audible signals from the park assist system
The Park Assist system uses an intermittent tone that pulses faster as you come close toan object, and becomes constant when youare within approximately 1 ft (30 cm) of anobject in front of or behind the vehicle. If thevolume of another source from the audio sys-tem is high, this will be automatically lowered. If there are objects within this distance both behind and in front of the vehicle, the signalalternates between front and rear speakers.
Faults in the system
If the yellow warning symbol illu- minates and PARK ASSIST
SERVICE REQUIRED is shown
on the information display, this indicates that the system is not
functioning properly and has been disen-gaged. Consult a trained and qualified Volvoservice technician.
CAUTION
In certain circumstances, the park assist system may give unexpected warning sig-nals that can be caused by external soundsources that use the same ultrasound fre-quencies as the system. This may includesuch things as the horns of other vehicles,wet tires on asphalt, pneumatic brakes,motorcycle exhaust pipes, etc. This doesnot indicate a fault in the system.
Cleaning the sensors
G026946
Park assist sensors The sensors must be cleaned regularly to ensure that they work properly. Clean themwith water and a suitable car washing deter-gent. Ice and snow covering the sensors may cause incorrect warning signals.
NOTE
If the sensors are obstructed by e.g., dirt, snow, or ice, this could result in falsewarning signals from the park assist sys-tem.