2015 VOLVO XC90 tire size

SAFETY
* Option/accessory, for more information, see Introduction.
78
Press down on the center of the booster cushion to return it to the stowed position.
NOTE
The booster cushion must be in the stowed position before the rear seat backrests arefolded down.
CAUTION
Be sure there are no loose objects under the booster cushion before it is stowed.
WARNING
DEATH or SERIOUS INJURY can occur Follow all instructions on the booster cushion and in the vehicle's owner'smanual. MAKE SURE THE BOOSTER CUSHION IS SECURELY LOCKEDBEFORE THE CHILD IS SEATED. • Use this booster cushion only with chil- dren whose height and weight are withinthe permitted limits.
• In the event of a collision while the inte-grated booster cushion was occupied, theentire booster cushion and seat belt mustbe replaced. The booster cushion shouldalso be replaced if it is badly worn ordamaged in any way. This work should beperformed by a trained and qualifiedVolvo service technician only.
Related information
•
Integrated booster cushion
* (p. 75)
• Raising the integrated booster cushion
*
(p. 76)
Occupant weight sensor
The Occupant Weight Sensor (OWS) is designed 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 (adults and children) shorter than 4 feet 7 inches(140 cm) 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 the front passenger's seat and seat belt. The sensorsare designed to detect the presence of a properly

LOADING AND STORAGE
* Option/accessory, for more information, see Introduction.
208
Level control buttons on the rear edge of the cargo compartment
The level control consists of two buttons: one to raise and one to lower the rear-end of the vehi-cle. Press and hold the respective buttons until the desired level has been reached.
NOTE
The level cannot be adjusted if a door or the hood are open (this does not apply to the tail-gate).
WARNING
Be sure that the entire area under the vehicle is completely unobstructed before loweringthe level.
Extra loading spaceThe rear seat backrests can be folded down to added cargo space or for transporting longobjects.
Roof loadsLoad carriers are available as Volvo accessories.Observe the following points when in use:
• To avoid damaging your vehicle and to achieve maximum safety when driving, werecommend using the load carriers that Volvohas developed especially for your vehicle.
• Volvo-approved removable roof racks aredesigned to carry the maximum allowableroof load for this vehicle (see the article"Weights" for specific information).
• Never exceed the rack manufacturer's weighlimits.
• Avoid single-point loads. Distribute loadsevenly.
• Place heavier cargo at the bottom of theload.
• Secure the cargo correctly with appropriatetie-down equipment.
• Check periodically that the load carriers andload are properly secured.
• Remember that the vehicle's center of gravityand handling change when you carry a loadon the roof. •
The vehicle's wind resistance and fuel con-sumption will increase with the size of theload.
• Drive smoothly. Avoid rapid starts, fast cor-nering and hard braking.
See the article "Weights" for information about the maximum permissible load that can be trans-ported on the roof.
Related information
• Folding the second row backrests (p. 170)
• Folding the third row
* backrests (p. 172)
• Weights (p. 539)
• Cargo net (p. 209)
• Cargo compartment cover
* (p. 213)
• Load anchoring eyelets (p. 212)
• Whiplash protection system (p. 89)

DRIVER SUPPORT
276shoulders, legs, the upper and lower parts of the body and a cyclist's normal pattern of movement.
• If major parts of the cyclist's body are not visible to the camera, the system cannotdetect the cyclist.
• The cyclist must be an adult riding an "adult-size" bike.
WARNING
City Safety is designed to be a supplementary driving aid. It cannot detect:
• all cyclists in all situations, e.g., a partially obscured cyclist will not be detected.
• a cyclist whose clothing prevents a clearview of the person's body contours.
• a cyclist transporting a large object.
The driver is always responsible for operating the vehicle in a safe manner.
Pedestrians
Optimal example of what the system considers to be a pedestrian: clear body contours
To help function optimally, City Safety's function for pedestrian detection needs clear informationabout the person's head, arms, shoulders, legs,the upper and lower parts of the body and a per-son's normal pattern of movement. In order to detect a pedestrian, there must be a contrast to the background. If there is little con-trast, the person may be detected late or not atall, which may result in a late or no reaction fromthe system. City Safety can also detect pedestrians in dark- ness with the help of the vehicle's headlights. •
If major parts of the pedestrian's body are not visible to the camera, he/she may not bedetected.
• In order to detect a pedestrian, the systemmust have a full view of the person's entirebody and the person must be at least 32 in.(80 cm) tall.
WARNING
City Safety is designed to be a supplementary driving aid. It cannot detect pedestrians:
• who are partially obscured, wearing cloth- ing that prevents a clear view of the per-son's body contours or who are not atleast 32 in. (80 cm) tall.
• carrying a large object.
The driver is always responsible for operating the vehicle in a safe manner.
Related information
• City Safety
™ (p. 273)
• City Safety limitations (p. 278)
• City Safety in crossing traffic (p. 277)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.305
2. Follow the instructions provided. The proce- dure is the same as when parking the vehicle. The steering wheel may turn back slightly when the function is completed and the driver mayhave to turn the back before leaving the parkingspace. If PAP determines that the driver can leave the parking space without assistance, the functionwill deactivate before the vehicle is completelyout of the space.
Related information
•
Park Assist Pilot (PAP)
* (p. 301)
• Park Assist Pilot (PAP)
* limitations (p. 305)
• Park Assist Pilot (PAP)
* symbols and mes-
sages (p. 307)
Park Assist Pilot (PAP) * limitations
The PAP function may be limited in certain situa- tions.
The PAP parking sequence is cancelledA parking sequence will be cancelled:
• if the vehicle is driven too fast (above approx. 4 mph (7 km/h)
• if the driver taps
Cancel in the center display
• if the driver touches the steering wheel
• if the anti-lock brakes or Electronic Stability Control are activated (e.g., if a wheel beginsto spin or lose traction)
In such cases, a text message will explain why the parking sequence was cancelled.
NOTE
• PAP will not function correctly if its sen- sors are obstructed by dirt, snow, etc.
• In certain situations, PAP may not be ableto measure a parking space. This couldbe due to external sources of sound (e.g.,a vehicle's horn, tires on wet asphalt,pneumatic brakes, noise from a motorcy-cle's exhaust, etc.) emitting ultrasoundusing approximately the same frequen-cies as PAP.
Points to keep in mindPAP is a parking aid only and the driver should always be prepared to take control and cancel aparking sequence. This can be due to one ormore of the following factors:
• PAP's function is based on the way that the vehicles are parked behind and in front ofyour parking space. If they are, for example,parked too close to the curb, there is a riskthat your vehicle's tires or wheel rims couldbe damaged by the curb during the parkingprocedure.
• PAP is intended to provide parking assis-tance on straight streets, not sections ofstreet with curved or irregular curbs. Be surethat your vehicle is parallel to the curb whenPAP measures the parking space.
• PAP may not be able to provide parkingassistance on narrow streets due to lack ofspace to maneuver the vehicle. In situationslike this, it may help to drive as close to theside of the road as possible where the park-ing space is located.
• Use only approved tires with the correct infla-tion pressure because this affects PAP'scapacity to provide parking assistance.Changing to a different approved tire sizemay affect PAP's parameters. Consult atrained and qualified Volvo service technician.
• Heavy rain or snow may inhibit PAP'scapacity to correctly measure a parkingspace.

NAVIGATION*
* Option/accessory, for more information, see Introduction.
456
System settings
This article describes settings for the navigation system software and map versions.
Path:
SettingsNavigationSystem
Software version
•Base Map Version_ e.g., 00.20.00.18
See also the article "Updating map data with MapCare".
Map version
•Map Information: information about maps,
updates and your favorite regions.
Related information
• Sensus Navigation settings (p. 449)
• Map updates with MapCare (p. 456)
Map updates with MapCare
Volvo Sensus Navigation remote updates can be done directly to the vehicle through a cell phoneInternet connection or from a computer with aUSB flash drive.
General update informationThe system's maps are divided into a number of fixed regions. When updates are done, it is notnecessary to update all of the regions at thesame time but instead can be done for a specificregion or several regions. One or several regions can be updated from the vehicle's Internet connection. However, for majorupdates, a computer and a USB flash drive arerecommended. If an itinerary covers several regions, they should all have the same version number to enable thesystem to calculate the best route to the destina-tion(s).
Updating the map structureChanging the map structure may sometimes benecessary, e.g., if a region is added or if a largeregion is divided into smaller ones. If this is thecase, normal updates may not be possible and amessage will be displayed explaining what hashappened. In this situation, the entire map must be reinstal- led from a USB flash drive. For additional infor-mation, contact a Volvo retailer.
Updating navigation system softwareIn addition to the maps, the system's software isbeing steadily developed and has to be updatedoccasionally. This may mean that newly downloa-ded map information may not be supported bythe navigation system's software. If this happens,a message will be displayed indicating that thesoftware needs to be updated. This can be doneby a Volvo retailer or from a USB flash drive. See the section "Software version" in the article "System settings."
Updates from the vehicle's Internet
connection or from a USB flash drive
For detailed information, see the articles "Remotemap updates" and "Map updates from the com-puter with a USB flash drive."
FAQs
QuestionAnswer
Can the map database bechanged,e.g., fromEurope toNorth Amer-ica?
Yes, with certain exceptions. Contact a Volvo retailer for up-to-date information.
How long do map updatestake?This depends on the size of the file(s) and the speed of theInternet connection.

WHEELS AND TIRES
467
to reduce the chance of oversteer during hard braking.
• Hitting curbs or potholes can damage thetires and/or wheels permanently.
Tire rotationYour vehicle has no required tire rotation. Tire wear is affected by a number of factors such astire inflation, ambient temperature, driving style,etc.
NOTE
• If the tires are rotated, they should only be moved from front to rear or vice versa.They should never be rotated left toright/right to left.
• Ideally, tire rotation should be done thefirst time after approximately 3,000 miles(5,000 km) and thereafter at 6,000-mile(10,000-km) intervals. Some customersfind that tire rotation may help to getextra mileage from tire life.
• Tire rotation should only be performed iffront/rear tire wear is fairly even andtread height is above 1/16" (1.6 mm).
Storing wheels and tiresWhen storing complete wheels (tires mounted on rims), they should be suspended off the floor orplaced on their sides on the floor. Tires not mounted on rims should be stored ontheir sides or standing upright, but should not besuspended.
CAUTION
Tires should preferably be stored in a cool, dry, dark place, and should never be stored inclose proximity to solvents, gasoline, oils, etc.
WARNING
•
The wheel and tire sizes for your Volvo are specified to meet stringent stabilityand handling requirements. Unapprovedwheel/tire size combinations can nega-tively affect your vehicle's stability andhandling.
• Any damage caused by installation ofunapproved wheel/tire size combinationswill not be covered by your new vehiclewarranty. Volvo assumes no responsibilityfor death, injury, or expenses that mayresult from such installations.
Related information
•
Checking tire inflation pressure (p. 473)
• Tread wear indicator (p. 471)
Tire sidewall designations
The following information can be found on a tire's sidewall.
Federal law mandates that tire manufacturers place standardized information on the sidewall ofall tires (see the illustration). The vehicle has been certified with certain combi- nations of wheels and tires. The following information is listed on the tire sidewall: The tire designation:

WHEELS AND TIRES
468
NOTE
Please be aware that the following tire desig- nation is an example only and that this par-
ticular tire may not be available on your vehi- cle.
1. 215 : the width of the tire (in millimeters)
from sidewall edge to sidewall edge. The larger the number, the wider the tire.
2. 65: The ratio of the tire's height to its width
in percent.
3. R: Radial tire (the designation RF and the
symbol indicate that the vehicle is
equipped with optional self-supporting run flat tires 2
.
4. 15: The diameter of the wheel rim (in
inches).
5. 95: The tire's load index. In this example, a
load index of 95 equals a maximum load of 1521 lbs (690 kg).
6. H: The tire's speed rating, or the maximum
speed at which the tire is designed to bedriven for extended periods of time, carryinga permissible load for the vehicle, and withcorrect inflation pressure. For example, Hindicates a speed rating of 130 mph(210 km/h).
NOTE
The tire's load index and speed rating may not appear on the sidewall because they arenot required by law.
7. M+S or M/S = Mud and Snow, AT = All Ter-
rain, AS = All Season
8. U.S. DOT Tire Identification Number (TIN) : This begins with the letters "DOT" and
indicates that the tire meets all federalstandards. The next two numbers or lettersare the plant code where it was manufac-tured, the next two are the tire size code andthe last four numbers represent the weekand year the tire was built. For example,1510 means that the tire was manufacturedduring week 15 of 2010. The numbers inbetween are marketing codes used at themanufacturer's discretion. This informationhelps a tire manufacturer identify a tire forsafety recall purposes.
9. Tire Ply Composition and MaterialUsed : Indicates the number of plies indi-
cates or the number of layers of rubber-coated fabric in the tire tread and sidewall.Tire manufacturers also must indicate the plymaterials in the tire and the sidewall, whichinclude steel, nylon, polyester, and others. 10.
Maximum Load : Indicates the maximum
load in pounds and kilograms that can becarried by the tire. Refer to the vehicle's tireinformation placard located on the B-Pillarfor the correct tire pressure for your vehicle.
11. Treadwear, Traction, and Temperaturegrades .
12. Maximum permissible inflationpressure: the greatest amount of air pres-
sure that should ever be put in the tire. Thislimit is set by the tire manufacturer.
Speed SymbolA tire's Speed Symbol (SS) indicates the maxi-mum speed for which the tire has been certifiedand should be at least equivalent to the vehicle'stop speed. Winter tires, with our without studs, are excep- tions and may use a lower SS. When winter tiresare installed, the vehicle may not be driven fasterthan the tires' SS. The vehicle's speed should always be determined by the posted speed limit and traffic and roadconditions, not the tire's SS. The following table indicates the maximum per- missible speed for each SS.
2 Self-supporting run flat tires may not be available on all models

WHEELS AND TIRES
469
Speed Symbol
M81 mph (130 km/h)
Q100 mph (160 km/h)
T118 mph (190 km/h)
H130 mph (210 km/h)
V149 mph (240 km/h)
W168 mph (270 km/h)
Y186 mph (300 km/h)
WARNING
•The wheel and tire sizes for your Volvo are specified to meet stringent stabilityand handling requirements. Unapprovedwheel/tire size combinations can nega-tively affect your vehicle's stability andhandling.
• Any damage caused by installation ofunapproved wheel/tire size combinationswill not be covered by your new vehiclewarranty. Volvo assumes no responsibilityfor death, injury, or expenses that mayresult from such installations.
Wheel (rim) designations Wheel and rim dimensions are shown in the fol- lowing table.
The vehicle has been certified with certain combi- nations of wheels and tires. The following table shows an
example of wheel
dimensions: 8Jx18x42.5. This wheel may not be available on your vehicle.
8Wheel width in inches
JRim flange profile
18Wheel diameter in inches
42.5Offset in mm (distance from the center of the wheel to the wheel's contact sur-face on the hub)
Related information
• Tire sidewall designations (p. 467)
Tire terminology The following is a glossary of tire-related terms.
The tire suppliers may have additional markings, notes or warnings such as standard load, radialtubeless, etc.
• Tire information placard
: A placard show-
ing the OE (Original Equipment) tire sizes, recommended inflation pressure, and themaximum weight the vehicle can carry.
• Tire Identification Number (TIN)
: A number
on the sidewall of each tire providing infor-mation about the tire brand and manufactur-ing plant, tire size and date of manufacturer.
• Inflation pressure
: A measure of the
amount of air in a tire.
• Standard load
: A class of P-metric or Metric
tires designed to carry a maximum load at35 psi [37 psi (2.5 bar) for Metric tires].Increasing the inflation pressure beyond thispressure will not increase the tires load car-rying capability.
• Extra load
: A class of P-metric or Metric
tires designed to carry a heavier maximumload at 41 psi [43 psi (2.9 bar) for Metrictires]. Increasing the inflation pressurebeyond this pressure will not increase thetire's load carrying capability.
• kPa
: Kilopascal, a metric unit of air pressure.
• PSI
: Pounds per square inch, a standard unit
of air pressure.