2014 VOLVO XC90 sensor

01 Safety
Occupant Weight Sensor01
29
WARNING
•If a fault in the system is detected and indicated as explained, be aware thatthe passenger's side front airbag willnot deploy in the event of a collision.
• In this case, the safety systems andOccupant Weight Sensor should beinspected by a trained and qualifiedVolvo service technician as soon aspossible.
WARNING
•Never try to open, remove, or repair any components in the OWS system.This could result in system malfunc-tion. Maintenance or repairs shouldonly be carried out by a trained andqualified Volvo service technician.
• The front passenger's seat should notbe modified in any way. This couldreduce pressure on the seat cushion,which might interfere with the OWSsystem's function.
The OWS is designed to disable (will not inflate) the passenger's side front airbagwhen a rear facing infant seat, a forward-fac-ing child restraint, or a booster seat isdetected. The
PASSENGER AIRBAG OFF indicator lamp will illuminate and stay on toremind you that the passenger's side frontairbag is disabled (see the following table).
Passeng- er's seatoccu-pancystatusOWS indicatorlight sta-tusPasseng- er's sidefront air-bag status
Seat unoc- cupiedOWS indi- cator light
is not
lit
Passenger's side front air-bag disabled
Seat occu- pied by lowweightoccupant/ object AOWS indi- cator light
lights
up
Passenger's side front air-bag disabled
Seat occu- pied byheavy occu-pant/objectOWS indi- cator light
is not
lit
Passenger's side front air-bag enabled
A
Volvo recommends that children always be properly restrained in appropriate child restraints in the rear seats.Inrare situations when the seat belt is not properly fastened,some child restraints may not be detected by the OWSbecause there is very little weight on the vehicle seat cush-ion. In these cases the passenger's side front airbag maybe disabled, but the PASSENGER AIRBAG OFF indicator
lamp will not be lit. Do not assume that the passenger'sside front airbag is disabled unless the PASSENGERAIRBAG OFF
indicator lamp is lit. Make sure the child
restraint is properly installed (turn the vehicle off, removethe child restraint from the vehicle and reinstall the restraintfollowing the child restraint manufacturer's instructions)and that the PASSENGER AIRBAG OFF indicator lamp is
on, or move the child restraint to the rear seat.
The OWS is designed to enable (may inflate) the passenger's side front airbag in the eventof a collision anytime the system senses thata person of adult size is sitting properly in thefront passenger's seat. The PASSENGER
AIRBAG OFF indicator lamp will be off and
remain off. If a person of adult size is sitting in the front passenger's seat, but the PASSENGER
AIRBAG OFF indicator lamp is on, it is possi-
ble that the person isn't sitting properly in theseat. If this happens:
1. Turn the vehicle off and ask the person to place the seat back in an upright position.
2. Have the person sit upright in the seat, centered on the seat cushion, with the person's legs comfortably extended.
3. Restart the vehicle and have the person remain in this position for about twominutes. This will allow the system todetect that person and enable the pas-senger's frontal airbag.
4. If the PASSENGER AIRBAG OFF indica-
tor lamp remains on even after this, the

01 Safety
Occupant Weight Sensor 01
30
person should be advised to ride in the rear seat.
This condition reflects limitations of the OWSclassification capability. It does not indicateOWS malfunction.
ModificationsIf you are considering modifying your vehiclein any way to accommodate a disability, forexample by altering or adapting the driver'sor front passenger's seat(s) and/or airbagsystems, please contact Volvo at: In the USA Volvo Cars of North America, LLC Customer Care Center1 Volvo DriveP.O. Box 914 Rockleigh,New Jersey 076471-800-458-1552 In Canada Volvo Cars of Canada Corp. National Customer Service9130 Leslie Street, Suite 101Richmond Hill, Ontario L4B 0B91-800-663-8255
WARNING
• No objects that add to the total weight on the seat should be placed on thefront passenger's seat. If a child isseated in the front passenger's seatwith any additional weight, this extraweight could cause the OWS systemto enable the airbag, which mightcause it to deploy in the event of a col-lision, thereby injuring the child.
• The seat belt should never be wrappedaround an object on the front pas-senger's seat. This could interfere withthe OWS system's function.
• The front passenger's seat belt shouldnever be used in a way that exertsmore pressure on the passenger thannormal. This could increase the pres-sure exerted on the weight sensor by achild, and could result in the airbagbeing enabled, which might cause it todeploy in the event of a collision,thereby injuring the child.
WARNING
Keep the following points in mind with respect to the OWS system. Failure to fol-low these instructions could adverselyaffect the system's function and result inserious injury to the occupant of the frontpassenger's seat:
• The full weight of the front seat pas- senger should always be on the seatcushion. The passenger should neverlift him/herself off the seat cushionusing the armrest in the door or thecenter console, by pressing the feet onthe floor, by sitting on the edge of theseat cushion, or by pressing againstthe backrest in a way that reducespressure on the seat cushion. Thiscould cause OWS to disable the frontpassenger's side airbag.
• Do not place any type of object on thefront passenger's seat in such a waythat jamming, pressing, or squeezingoccurs between the object and thefront seat, other than as a direct resultof the correct use of the AutomaticLocking Retractor/Emergency LockingRetractor (ALR/ELR) seat belt (seepage 39).
• No objects should be placed under thefront passenger's seat. This could

01 Safety
Occupant Weight Sensor01
31
interfere with the OWS system's func- tion.

01 Safety
Infant seats01
43
Securing an infant seat with a seat belt
G026417
Do not place the infant seat in the front passeng- er's seat
NOTE
Refer to page 49 and page 51 for infor- mation on securing a child restraint usingISOFIX/LATCH lower anchors and/or toptether anchorages.
G026493
Positioning the seat belt through the infant seat
WARNING
•An infant seat must be in the rear-facing position only.
• The infant seat should not be positionedbehind the driver's seat unless there isadequate space for safe installation.
1. Place the infant seat in the rear seat of
the vehicle.
2. Attach the seat belt to the infant seat according to the manufacturer's instruc- tions.
G026492
Fasten the seat belt
WARNING
A child seat should never be used in the front passenger seat of any vehicle with afront passenger airbag – not even if the"Passenger airbag off " symbol near the
rear-view mirror is illuminated (on vehiclesequipped with Occupant Weight Sensor). Ifthe severity of an accident were to causethe airbag to inflate, this could lead to seri-ous injury or death to a child seated in thisposition.

02 Instruments and controls
Lighting panel
02
68
wheel (see the right-pointing beam in the illustration).
NOTE
When driving in daylight conditions, the headlights will switch off and the daytimerunning lights will come on. In darkness,the daytime running lights will switch offand the Active Bending Lights will switchon.
The ABL function is activated automatically when the engine is started and the headlight switch is in the
position and can be
deactivated/reactivated by pressing the but- ton in the center console (see page 64.
LED Daytime Running Lights (DRL)
To help conserve fuel by reducing the use of electrical current in the vehicle, DRL can beused in daylight conditions instead of the lowbeam headlights, which consume more elec-trical current. The daytime running lights aremounted in the front spoiler and use bright,electricity-saving LEDs (light emitting diodes).
Press button A to activate automatic DRL in day-
light driving conditions
With the headlight switch in the
posi-
tion as shown in the illustration, press the button with the A symbol to activate the auto-
matic LED daytime running lights in daylightdriving conditions (the indicator light in thebutton will illuminate). A light sensor thenmonitors the ambient lighting conditions andautomatically switches from LED DRL to thelow beam headlights in weaker ambient light(and will switch back to DRL when the ambi-ent light becomes brighter). Press the buttonagain (the indicator light in the switch will turnoff) to switch on the headlights. The LED DRLs will also switch off automati-cally (and the low beams will switch on) if:
• The rear fog light is switched on
• The windshield wipers are switched on for more than 10 seconds
If the LED DRL function was activated when the ignition was switched off, it will be activewhen the ignition is switched on again.
WARNING
• DRL is a driving aid designed to help conserve electrical current. This sys-tem cannot always determine if theambient lighting conditions are suffi-cient for switching from low beams toDRL (or vice versa). It is always thedriver's responsibility to visually deter-mine if the low beam headlights shouldbe used.
• As the driver, you have full responsibil-ity for operating the vehicle in a safemanner.

02 Instruments and controls
Right-side steering wheel lever
02
72
Windshield wipers
G026953
Thumb wheel
Rain sensor on/off
Windshield wipers offIf the lever is in the 0 position and
you move it upwards, the wipers will sweep one stroke at a time foras long as you hold the lever up.
Single sweep positionMove the lever slightly upward from the 0 position for one sweep
of the wipers. The lever returnsautomatically to 0 when released.
Intermittent wiper functionWith the lever in this position, you can set the wiper interval bytwisting the control ring (1)upward to increase wiper speedor downward to decrease the
speed.
Windshield washer/headlight washer (certain models)
When the lever is pulled to wash the wind- shield, high pressure jets mounted in thebumper will spray the headlights.
CAUTION
• Use ample washer fluid when washing the windshield to avoid scratching theglass. The windshield should be thor-oughly wet when the wipers are inoperation.
• Before using the wipers, ice and snowshould be removed from the wind-shield/rear window. Be sure the wiperblades are not frozen in place.
•
To conserve washer fluid in driving condi- tions where the windshield washers areused frequently, the headlights will onlybe washed once for every five times the windshield is washed within a 10-minuteperiod.
• A short pull on the lever will wash thewindshield only.
• When approximately 1 US quart (1 liter)remains in the washer fluid reservoir, theheadlights will not be washed when thelever is pulled to conserve washer fluidfor the windshield. A text message willalso be displayed to remind the driver tofill the washer fluid reservoir.
Continuous wiper functionTop arrow:
normal speed
Bottom arrows: higher speed

02 Instruments and controls
Right-side steering wheel lever
02
* Option/accessory, for more information, see Introduction.73
Tailgate wiper/washer
G027127
Intermittent wiping: Press the upper
section of the switch
Neutral position: The wiper is
switched off
Normal (continuous) wiping: Press the
lower section of the switch
Move the lever forward to start the tailgate washer. After washing the rear window, thewiper will make several additional sweeps.
Tailgate wiper and reverse gearIf the front wipers are on and the transmissionis put into reverse gear, the tailgate wiper will go into intermittent wiping function 1
.
If the tailgate wiper is already in normal wip- ing function, the normal wiping function willcontinue.
Rain sensor*
The rain sensor automatically regulates wiper speed according to the amount of water onthe windshield. The sensitivity of the sensor can be adjusted
by twisting ring (1) up (the wipers will sweep the windshield more frequently) or down (thewipers will sweep the windshield less fre-quently).
Activating the rain sensor:1. Turn the ignition key to at least position I
and put the windshield wiper lever inposition 0.
2. Press button (2), see page 72. > A light in the button will light up to indi-cate that the rain sensor is active.
Deactivating the rain sensor:
• Press button (2), see page 72. or •
Move the windshield wiper lever
down to
another position. Moving the lever up will not deactivate the rain sensor. Doing sowill cause the wipers to sweep the wind-shield until the lever is released, at whichtime the wipers return to rain sensormode.
The rain sensor is also deactivated when the key is removed from the ignition.
CAUTION
The rain sensor should be deactivated when washing the vehicle in an automaticcar wash, etc. If the rain sensor function isleft on, the wipers will start inadvertently inthe car wash and could be damaged.
1 Consult your Volvo retailer if you would like to have this function deactivated.

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