VOLVO XC90 TWIN ENGINE 2018 Workshop Manual

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2.Buckle the seat belt by pushing the latchplate into the receptacle.
> A distinct "click" indicates that the belt islocked into place.

WARNING
Always insert the seat belt latch plate into thebelt buckle on the correct side. Failure to doso could cause the seat belts and belt buck-les to malfunction in a collision. There is a riskof serious injury.
3.The height of the seat belts in the front seatsand outboard rear seating positions can beadjusted.
Press the button on the seat belt holder andmove the belt up or down.
Position the belt as high as possible withoutit chafing against the neck.
The belt should be positioned closely against the insideof the shoulder (against the collarbone, not down overthe arm).
4. Tighten the lap section of the seat belt overthe hips by pulling the diagonal sectionupward toward the shoulder.
The lap section of the seat belt should be positioned lowon the hips (not against the abdomen).

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WARNING
Never use a seat belt for more than oneoccupant. Never wear the shoulder portion ofthe belt under the arm, behind the back orotherwise out of position. Such use couldcause injury in the event of an accident. Asseat belts lose much of their strength whenexposed to violent stretching, they should bereplaced after any collision, even if theyappear to be undamaged.

WARNING
Do not use clips or fasten the belts aroundhooks or other parts of the interior. This willprevent the seat belt from fitting properly.

WARNING
Never damage the seat belts and never insertany foreign objects into the belt buckle. Thismay cause the seat belts and belt buckles tomalfunction in a collision. There is a risk ofserious injury.

Unbuckling seat belts
1. Press the red button on the seat belt recep-tacle and make sure the seat belt retractsfully into the retractor slot.
2. If it does not fully retract, guide the belt man-ually into the slot and make sure it does nothang loose.
If the seat belt in the second row centerseating position is used, make sure it is prop-erly positioned in the correct seat belt guide.
Related information
•Seat belts (p. 47)
•Seat belt tensioners (p. 50)
•Door and seat belt reminders (p. 51)
Seat belt tensioners
The vehicle is equipped with standard and elec-tric seat belt tensioners that can help tension theseat belt in a critical situation or collision.
Standard seat belt tensioners
All seat belts are equipped with a standard seatbelt tensioner.
In a collision of sufficiently violent force, the seatbelt tensioners will tension the seat belts in orderto more effectively restrain the occupants.

Electric seat belt tensioners
The driver's and front passenger's seat belts areequipped with electric seat belt tensioners.
The seat belt tensioners interact and can be acti-vated in conjunction with the City Safety andRear Collision Warning driver support systems. Incritical situations, such as if the vehicle brakessuddenly, begins to skid or runs off the road (e.gif the vehicle rolls into a ditch, lifts off the groundor hits an obstacle in the road), or if there is a riskof collision, the seat belts can be pulled taut bythe seat belt tensioner's electric motor.
The electric seat belt tensioner helps to positionthe occupant more effectively in the seat, whichreduces the risk of the occupant striking the inte-rior of the passenger compartment and improvesthe effect of other safety systems such as theairbags.

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When a critical situation has passed, the seat beltand the electric seat belt tensioner are resetautomatically. However, they can also be resetmanually.

WARNING
Never attempt to alter or repair the seat belton your own. Volvo recommends contactingan authorized Volvo workshop.
If the seat belt has been exposed to extremeforces, e.g. in conjunction with a collision, theentire seat belt must be replaced. Even if theseat belt appears undamaged, some of itsprotective properties may have been lost. Alsoreplace the seat belt if it is worn or damaged.The new seat belt must be type approved andintended for the same seating position as thereplaced seat belt.

Related information
•Seat belts (p. 47)
•Buckling and unbuckling seat belts (p. 48)
•Resetting the electric seat belt tensioners(p. 51)
•City Safety™ (p. 335)
•Rear Collision Warning (p. 347)
Resetting the electric seat belttensioners
The electric seat belt tensioners are designed tobe reset automatically, but if the seat beltremains taut it can be reset manually.1. Stop the vehicle in a safe location.
2.Unbuckle the seat belt and then rebuckle it.
> The seat belt and the electric seat belttensioner will be reset.
WARNING
Never attempt to alter or repair the seat belton your own. Volvo recommends contactingan authorized Volvo workshop.
If the seat belt has been exposed to extremeforces, e.g. in conjunction with a collision, theentire seat belt must be replaced. Even if theseat belt appears undamaged, some of itsprotective properties may have been lost. Alsoreplace the seat belt if it is worn or damaged.The new seat belt must be type approved andintended for the same seating position as thereplaced seat belt.

Related information
•Seat belt tensioners (p. 50)
•Seat belts (p. 47)
Door and seat belt reminders
This system is intended to remind occupants tobuckle their seat belts and to alert the driver if adoor or the hood, tailgate or fuel filler door isopen.
Graphics in the instrument panel
Graphics in the instrument panel with various types ofwarnings. The warning colors for the doors/tailgate varydepending on the vehicle's speed.
The instrument panel graphic shows the seatswhere seat belts are buckled and not buckled.
The same graphic also indicates if the hood, tail-gate, fuel filler door or any door is open.
Confirm the graphic by briefly pressing the Obutton on the right-side steering wheel keypad.

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Seat belt reminder
Reminder light in ceiling console.
The seat belt reminder consists of an audible sig-nal and a symbol in the instrument panel.
The reminder light varies depending on the vehi-cle's speed, driving time and distance driven.
A seat belt status graphic in the instrument panelindicates when the driver's or a passenger's seatbelt is buckled or unbuckled.
Child seats are not included in the seat beltreminder system.

Front seats
An audible signal and an indicator light remindunbuckled occupants to fasten their seat belts.
Rear seat
The rear seat belt reminder has two functions:
•To indicate which seat belts are buckled inthe rear seats. This will also be displayed inan instrument panel graphic.
•To provide audio and visual reminders if anyseat belt in the rear seat is removed whilethe vehicle is in motion. The reminder willstop when the seat belt has been rebuckled.

Door/hood/tailgate and fuel filler door
reminder
If the hood, tailgate, fuel filler door or any door isnot properly closed, this will be indicated by agraphic in the instrument panel. Stop the vehiclesafely and close the open door, hood, etc.
If the vehicle is moving at a speedunder approx. 10 km/h (6 mph), theinformation symbol will illuminate in theinstrument panel.
If the vehicle is moving at a speedabove approx. 10 km/h (6 mph), thewarning symbol will illuminate in theinstrument panel.

Related information
•Seat belts (p. 47)
•Buckling and unbuckling seat belts (p. 48)
Airbags
The vehicle is equipped with airbags and inflat-able curtains for the driver and passengers.
WARNING
•If the airbag warning light stays on afterthe engine has started or if it illuminateswhile you are driving, have the vehicleinspected by a trained and qualified Volvoservice technician as soon as possible.
•Never attempt to alter or repair any of thevehicle's safety systems yourself. Incor-rectly performed repairs to any systemcould impair function and lead to seriousinjury. All work on these systems shouldbe performed by a trained and qualifiedVolvo service technician.

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WARNING
If your vehicle has become water-damaged inany way (e.g., soaked floor mats/standingwater on the floor of the vehicle), do notattempt to start the engine. This may causeairbag deployment, which could result in seri-ous injury. Volvo recommends towing thevehicle directly to an authorized Volvo work-shop.
Before attempting to tow the vehicle:
1.Switch off the ignition for at least 10minutes and disconnect the battery.
2. Follow the instructions for manually over-riding the shiftlock system.

Deployed airbags
WARNING
If any of the airbags have deployed:
•Do not attempt to drive the vehicle. Haveit towed to an authorized workshop.
•If necessary, seek medical attention.

Related information
•Safety (p. 42)
•Driver/passenger-side airbags (p. 53)
•Side airbags (p. 60)
•Inflatable curtain (p. 60)
Driver/passenger-side airbags
As a supplement to the seat belts, the vehicle isequipped with driver and passenger side frontairbags.
Driver/passenger side front airbags.
In a frontal collision, the airbags help protect thedriver's and passenger's head, face and chestand the driver's knees and legs.
A collision of a sufficiently violent force will trig-ger the sensors and one or more airbags willinflate. The airbag helps cushion the initial impactof the collision for the passenger. The airbagdeflates when compressed by the collision. Asmall amount of powder will also be releasedfrom the airbag. This may appear to be smokeand is normal. The entire process, from inflationto deflation of the airbag, occurs within tenths ofa second.
NOTE
The sensors react differently depending onthe circumstances of the accident andwhether or not the seat belt is used. Does notapply to all belt positions.
In some accident situations, only one (ornone) of the airbags will be deployed. Thesensors monitor the impact of the collisionand react accordingly to deploy one, severalor no airbags.

WARNING
The seat belt and the airbag work together. Ifthe seat belt is not used or is used incorrectly,the airbag may not provide the intended pro-tection in a collision.
To help prevent injury in the event the airbagis deployed, passengers should sit as uprightas possible, with their feet on the floor andtheir backs against the seat backrest.

WARNING
Volvo recommends contacting an authorizedVolvo workshop for repairs. Incorrectly per-formed repairs to the airbag system couldimpair function and lead to serious injury.

The front airbag system
The front airbag system includes gas generatorssurrounded by the airbags, and deceleration sen-

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sors that activate the gas generators, causing theairbags to be inflated with nitrogen gas.
As the movement of the seats' occupants com-presses the airbags, some of the gas is expelledat a controlled rate to provide better cushioning.Both seat belt tensioners also deploy, minimizingseat belt slack. The entire process, from inflationto deflation of the airbag, occurs within tenths ofa second.
The location of the front airbags is indicated bySRS AIRBAG embossed on the steering wheelpad and above the glove compartment, and bydecals on both sun visors and on the front andfar right side of the dash.
The driver's side front airbag is folded andlocated in the steering wheel hub.
The knee airbag is folded on the underside ofthe dashboard on the driver's side. The textAIRBAG is embossed on the panel.
The passenger's side front airbag is foldedbehind a panel located above the glove compart-ment.

WARNING
•The airbags in the vehicle are designed tobe a SUPPLEMENT to-not a replacementfor-the three-point seat belts. For maxi-mum protection, wear seat belts at alltimes. Be aware that no system can pre-vent all possible injuries that may occur inan accident.
•Never drive with your hands on the steer-ing wheel pad/airbag housing.
•The front airbags are designed to helpprevent serious injury. Deployment occursvery quickly and with considerable force.During normal deployment and depend-ing on variables such as seating position,one may experience abrasions, bruises,swellings, or other injuries as a result ofdeployment of one or both of the airbags.
•When installing any accessory equipment,make sure that the front airbag system isnot damaged. Any interference in the sys-tem could cause malfunction.

Front airbag deployment
•The front airbags are designed to deploy dur-ing certain frontal or front-angular collisions,impacts, or decelerations, depending on thecrash severity, angle, speed and objectimpacted. The airbags may also deploy in
certain non-frontal collisions where rapiddeceleration occurs.
•The airbag system sensors, which trigger thefront airbags, are designed to react to boththe impact of the collision and the inertialforces generated by it, and to determine ifthe intensity of the collision is sufficient forthe seat belt tensioners and/or airbags to bedeployed.
However, not all frontal collisions activate thefront airbags.
•If the collision involves a nonrigid object (e.g.,a snow drift or bush), or a rigid, fixed objectat a low speed, the front airbags will not nec-essarily deploy.
•Front airbags do not normally deploy in aside impact collision, in a collision from therear or in a rollover situation.
•The amount of damage to the bodyworkdoes not reliably indicate if the airbagsshould have deployed or not.

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NOTE
•Deployment of front airbags occurs onlyone time during an accident. In a collisionwhere deployment occurs, the airbagsand seat belt pretensioners activate.Some noise occurs and a small amountof powder is released. The release of thepowder may appear as smoke-like matter.This is a normal characteristic and doesnot indicate fire.
•Volvo's front airbags use special sensorsthat are integrated into the front seat beltbuckles. The point at which the airbagdeploys is determined by whether or notthe seat belt is being used, as well as theseverity of the collision.
•Collisions can occur where only one ofthe airbags deploys. If the impact is lesssevere, but severe enough to present aclear injury risk, the airbags are triggeredat partial capacity. If the impact is moresevere, the airbags are triggered at fullcapacity.
WARNING
•Do not use child safety seats or childbooster cushions/backrests in the frontpassenger's seat. We also recommendthat occupants under 140 cm (4 feet7 inches) in height who have outgrownthese devices sit in the rear seat with theseat belt fastened. See also the Occu-pant Weight Sensor information.
•Never drive with the airbags deployed.The fact that they hang out can impair thesteering of your vehicle. Other safety sys-tems can also be damaged.
•The smoke and dust formed when theairbags are deployed can cause skin andeye irritation in the event of prolongedexposure.
Should you have questions about any componentin the SRS system, please contact a trained andqualified Volvo service technician or Volvo cus-tomer support:
In the United States
Volvo Car USA, LLC
Customer Care Center
1 Volvo Drive
P.O. Box 914
Rockleigh, New Jersey 07647
1-800-458-1552
www.volvocars.com/us
In Canada
Volvo Car Canada Ltd.
Customer Care Centre
9130 Leslie Street, Suite 101
Richmond Hill, Ontario L4B 0B9
1-800-663-8255
www.volvocars.com/ca

Airbag decals
Airbag decal on the outside of both sun visors

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Passenger's side airbag decal

WARNING
•Children must never be allowed in thefront passenger's seat.
•Occupants in the front passenger's seatmust never sit on the edge of the seat, sitleaning toward the instrument panel orotherwise sit out of position.
•The occupant's back must be as uprightas comfort allows and be against the seatback with the seat belt properly fastened.
•Feet must be on the floor, e.g., not on thedash, seat or out of the window.
WARNING
•No objects or accessory equipment, e.g.dashboard covers, may be placed on,attached to, or installed near the air bagcover (the area above the glove compart-ment) or the area affected by airbagdeployment.
•There should be no loose articles, suchas coffee cups on the floor, seat, or dash-board area.
•Never try to open the airbag cover on thesteering wheel or the passenger's sidedashboard. This should only be done by atrained and qualified Volvo service techni-cian.
•Failure to follow these instructions canresult in injury to the vehicle's occupants.

Related information
•Airbags (p. 52)
•Occupant weight sensor (p. 56)
Occupant weight sensor
The Occupant Weight Sensor (OWS) isdesigned to meet the regulatory requirements ofFederal Motor Vehicle Safety Standard (FMVSS)208 and is designed to disable (will not inflate)the passenger's side front airbag under certainconditions.
Occupant Weight Sensor (OWS) indicator light

Disabling the passenger's side front
airbag
Volvo recommends that ALL occupants (adultsand children) shorter than 140 cm (4 feet7 inches) be seated in the back seat of any vehi-cle with a front passenger side airbag and beproperly restrained for their size and weight.
The OWS works with sensors that are part of thefront passenger's seat and seat belt. The sensorsare designed to detect the presence of a properly

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seated occupant and determine if the passeng-er's side front airbag should be enabled (mayinflate) or disabled (will not inflate).
The OWS will disable (will not inflate) the pas-senger's side front airbag when:
•the front passenger's seat is unoccupied, orhas small/medium objects in the front seat,
•the system determines that an infant is pres-ent in a rear-facing infant seat that is instal-led according to the manufacturer's instruc-tions,
•the system determines that a small child ispresent in a forward-facing child restraintthat is installed according to the manufactur-er's instructions,
•the system determines that a small child ispresent in a booster seat,
•a front passenger takes his/her weight off ofthe seat for a period of time,
•a child or a small person occupies the frontpassenger's seat.
The OWS uses a PASSENGER AIRBAG OFFindicator lamp which will illuminate and stay on toremind you that the passenger's side front airbagis disabled. The PASSENGER AIRBAG OFF indi-cator lamp is located in the overhead console,near the base of the rearview mirror.

NOTE
When the ignition is switched on, the OWSindicator light will illuminate for several sec-onds while the system performs a self-diag-nostic test.
However, if a fault is detected in the system:
•The OWS indicator light will stay on
•The SRS warning light will come on and stayon and a text message will be displayed.

WARNING
If a fault in the system is detected and indi-cated as described, be aware that the pas-senger's side front airbag will not deploy inthe event of a collision. In this case, the SRSsystem and Occupant Weight Sensor shouldbe inspected by a trained and qualified Volvoservice technician as soon as possible.
WARNING
•Never try to open, remove or repair anycomponents in the OWS system. Thiscould cause the system to malfunction.Maintenance or repairs should only becarried out by an a trained and qualifiedVolvo service technician.
•The front passenger's seat should not bemodified in any way. This could reducepressure on the seat cushion, whichmight interfere with the OWS system'sfunction.

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Passenger'sseat occu-pancy status
OWS indi-cator lightstatus
Passenger'sside front air-bag status
Seat unoccu-piedOWS indi-cator lightlights up.
Passenger'sside front air-bag disabled
Seat occu-pied by lowweight occu-
pant/objectA
OWS indi-cator lightlights up
Passenger'sside front air-bag disabled
Seat occu-pied by heavyoccupant/object
OWS indi-cator light isnot lit
Passenger'sside front air-bag enabled
AVolvo recommends that children always be properly restrainedin appropriate child restraints in the rear seats. Do not assumethat the passenger's side front airbag is disabled unless thePASSENGER AIRBAG OFF indicator lamp is lit. Make sure thechild restraint is properly installed. If there is any doubt as to thestatus of the passenger's side front airbag, move the childrestraint to the rear seat.
The OWS is designed to enable (may inflate) thepassenger's side front airbag in the event of acollision anytime the system senses that a per-son of adult size is sitting properly in the frontpassenger's seat. The PASSENGER AIRBAGOFF indicator lamp will be off and remain off.
If a person of adult size is sitting in the front pas-senger's seat, but the PASSENGER AIRBAGOFF indicator lamp is on, it is possible that the
person isn't sitting properly in the seat. If thishappens:
•Turn the vehicle off and ask the person toplace the backrest in an upright position.
•Have the person sit upright in the seat, cen-tered on the seat cushion, with the person'slegs comfortably extended.
•Restart the vehicle and have the personremain in this position for about two minutes.This will allow the system to detect that per-son and enable the passenger's frontal air-bag.
•If the PASSENGER AIRBAG OFF indicatorlamp remains on even after this, the personshould be advised to ride in the rear seat.
This indicates limitations in OWS classificationcapability. It does not indicate OWS malfunction.

Modifications
If you are considering modifying your vehicle inany way to accommodate a disability, for exampleby altering or adapting the driver's or front pas-senger's seat(s) and/or airbag systems, pleasecontact Volvo at:
In the United States
Volvo Car USA, LLC
Customer Care Center
1 Volvo Drive
P.O. Box 914
Rockleigh, New Jersey 07647
1-800-458-1552
In Canada
Volvo Car Canada Ltd.
Customer Care Centre
9130 Leslie Street, Suite 101
Richmond Hill, Ontario L4B 0B9
1-800-663-8255