tire pressure VOLVO XC90 2010 Owner´s Manual

07 Wheels and tires
General information
07

167
Summer and winter tires
G020325
The arrows shows the direction of rotation of the
tire
•When switching between summer and
winter tires, mark the tires to indicate
where they were mounted on the car, e.g.,
LF = left front, RR = right rear
•Tires with tread designed to roll in only one
direction are marked with an arrow on the
sidewall.
•Incorrectly mounted tires impair the car's
braking properties and ability to force
aside rain, snow and slush.
•The tires with the most tread should always
be at the rear (to reduce the risk of skid-
ding).
•Contact a Volvo workshop if you are
unsure about the tread depth.
Storing wheels and tiresWhen storing complete wheels (tires mounted
on rims), they should be suspended off the
floor or placed on their sides on the floor.
Tires not mounted on rims should be stored on
their sides or standing upright, but should not
be suspended.
CAUTION
Tires should preferably be stored in a cool,
dry, dark place, and should never be stored
in close proximity to solvents, gasoline, oils,
etc.
WARNING
•The wheel and tire sizes for your Volvo
are specified to meet stringent stability
and handling requirements. Unap-
proved wheel/tire size combinations
can negatively affect your vehicle's sta-
bility and handling. Approved tire sizes
are shown in the Tire inflation pressure
tables on pages 171 and 172.
•Any damage caused by installation of
unapproved wheel/tire size combina-
tions will not be covered by your new
vehicle warranty. Volvo assumes no
responsibility for death, injury, or
expenses that may result from such
installations.
Tire wear
Tire rotationTire wear is affected by a number of factors
such as tire inflation, ambient temperature,
driving style, etc. Your vehicle is driven mainly
by the front tires, which will wear faster.
If the tires are rotated, they should only be
moved from front to back or vice versa. They
should never be rotated left to right/right to left.
However, tire rotation, done at the recom-
mended intervals, is one way of helping to keep

07 Wheels and tires
Tire inflation
07

169
G032513
Tire inflation placards on U.S. models
Check tire inflation pressure regularly.
Tables listing the recommended inflation pres-
sure for your vehicle can be found on pages
171 and 172. A tire inflation pressure placard
is also located on the driver's side B-pillar (the
structural member at the side of the vehicle, at
the rear of the driver's door opening). This plac-
ard indicates the designation of the factory-
mounted tires on your vehicle, as well as load
limits and inflation pressure.
G032520
Tire inflation placard on Canadian models
NOTE
The placards shown indicate inflation pres-
sure for the tires installed on the vehicle at
the factory only.
•Use a tire gauge to check the tire inflation
pressure, including the spare, at least once
a month and before long trips. You are
strongly urged to buy a reliable tire pres-
sure gauge, as automatic service station
gauges may be inaccurate.
•Use the recommended cold inflation pres-
sure for optimum tire performance and
wear.
•Under-inflation or over-inflation may cause
uneven treadwear patterns.
WARNING
•Under-inflation is the most common
cause of tire failure and may result in
severe tire cracking, tread separation,
or "blow-out," with unexpected loss of
vehicle control and increased risk of
injury.
•Under-inflated tires reduce the load car-
rying capacity of your vehicle.
When weather temperature changes occur, tire
inflation pressures also change. A 10-degree
temperature drop causes a corresponding
drop of 1 psi (7 kPa) in inflation pressure. Check
your tire pressures frequently and adjust them
to the proper pressure, which can be found on
the vehicle's tire information placard or certifi-
cation label.
Checking tire pressureA certain amount of air seepage from the tires
occurs naturally and tire pressure fluctuates
with seasonal changes in temperature. Always
check tire pressure regularly.
Cold tiresInflation pressure should be checked when the
tires are cold.

07 Wheels and tires
Tire inflation
07
170
The tires are considered to be cold when
they have the same temperature as the sur-
rounding (ambient) air.
This temperature is normally reached after the
vehicle has been parked for at least 3 hours.
After driving a distance of approximately 1 mile
(1.6 km), the tires are considered to be hot. If
you have to drive farther than this distance to
pump your tire(s), check and record the tire
pressure first and add the appropriate air pres-
sure when you get to the pump.
If checking tire pressure when the tire is hot,
never "bleed" or reduce air pressure. The tires
are hot from driving and it is normal for pres-
sures to increase above recommended cold
pressures. A hot tire at or below recommended
cold inflation pressure could be significantly
under-inflated.
To check inflation pressure:1. Remove the cap from the valve on one tire,
then firmly press the tire gauge onto the
valve.
2. Add air to reach the recommended air
pressure.
3. Replace the valve cap.
4. Repeat this procedure for each tire, includ-
ing the spare.5. Visually inspect the tires to make sure there
are no nails or other objects embedded
that could puncture the tire and cause an
air leak.
6. Check the sidewalls to make sure there are
no gouges, cuts, bulges or other irregular-
ities.
NOTE
•If you overfill the tire, release air by
pushing on the metal stem in the center
of the valve. Then recheck the pressure
with your tire gauge.
•Some spare tires require higher inflation
pressure than the other tires. Consult
the tire inflation tables on pages 171
and 172 or see the inflation pressure
placard.

07 Wheels and tires
Tire inflation pressure tables – U.S. models
07
171
The following tire pressures are recommended
by Volvo for your vehicle. Refer to the tire infla-
tion placard for information specific to the tires
installed on your vehicle at the factory.
Cold tire pressures up to five per-
sons
Tire sizeFront, psi
(kPa)Rear, psi
(kPa)
XC90
225/70R16
235/65R17
235/60R18
255/50R19
255/45R2036 (250)36 (250)
Temporary
spare tire
T155/85R1861 (420)61 (420)
Load ratingsThe load ratings on the tire's sidewall translate
as follows, for example:
102 = 1874 lbs (850 kg)
104 = 1984 lbs (900 kg)
107 = 2150 lbs (975 kg)
Speed ratingsThe speed ratings on the tire's sidewall trans-
late as follows, for example:
M = 81 mph (130 km/h)
H = 130 mph (210 km/h)
V = 149 mph (240 km/h)
Y = 186 mph (300 km/h)
See also page 173 for an explanation of the
designations on the sidewall of the tire.

07 Wheels and tires
Tire inflation pressure tables – Canadian models
07
172
The following tire pressures are recommended
by Volvo for your vehicle. Refer to the tire infla-tion placard for information specific to the tires
installed on your vehicle at the factory.
Cold tire pressures up to five persons
Tire sizeCold tire pressures up to five persons psi (kPa)Optional pressure up to three persons psi (kPa)
FrontRearFrontRear
225/70R16
235/65R17
235/60R1839 (270)39 (270)32 (220)32 (220)
255/50R19
255/45R2039 (270)39 (270)35 (240)35 (240)
Temporary spare tire
T155/85R1861 (420)61 (420)61 (420)61 (420)

07 Wheels and tires
Tire designations
07

173
1
2
3
4
5
6
12
11
10
8
79
G026442
Federal law mandates that tire manufacturers
place standardized information on the sidewall
of all tires (see the illustration).
The following information is listed on the tire
sidewall:
The tire designation:
NOTE
Please be aware that the following tire des-
ignation is an example only and that this
particular tire may not be available on your
vehicle.
215: the width of the tire (in millimeters)
from sidewall edge to sidewall edge. The
larger the number, the wider the tire.
65: The ratio of the tire's height to its width.
R: Radial tire.
15: The diameter of the wheel rim (in
inches).
95: The tire's load index. In this example, a
load index of 95 equals a maximum load of
1521 lbs (690 kg).
H: The tire's speed rating, or the maximum
speed at which the tire is designed to be
driven for extended periods of time, carry-
ing a permissible load for the vehicle, and
with correct inflation pressure. For exam-
ple, H indicates a speed rating of 130 mph
(210 km/h).
NOTE
This information may not appear on the tire
because it is not required by law.
M+S or M/
S = Mud and Snow; AT = All Terrain; AS =
All Season
U.S.
DOT Tire Identification Number (TIN): This
begins with the letters "DOT" and indicates
that the tire meets all federal standards.
The next two numbers or letters are the
plant code where it was manufactured, the
next two are the tire size code and the last
four numbers represent the week and year
the tire was built. For example, 2501
means the 25th week of 2001. The num-
bers in between are marketing codes used
at the manufacturer's discretion. This infor-
mation helps a tire manufacturer identify a
tire for safety recall purposes.
Tire Ply Composition and Material Used:
Indicates the number of plies indicates or
the number of layers of rubber-coated fab-
ric in the tire tread and sidewall. Tire man-
ufacturers also must indicate the ply mate-
rials in the tire and the sidewall, which
include steel, nylon, polyester, and others.
Maximum Load: Indicates the maximum
load in pounds and kilograms that can be
carried by the tire. Refer to the vehicle's tire
information placard located on the B-Pillar
or the driver's door for the correct tire pres-
sure for your vehicle.

07 Wheels and tires
Tire designations
07
174
Treadwear, Traction, and Temperature
grades: see page 177 for more informa-
tion.
Maximum permissible inflation pressure:
the greatest amount of air pressure that
should ever be put in the tire. This limit is
set by the tire manufacturer.
Tire suppliers may have additional markings,
notes or warnings such as standard load, radial
tubeless, etc.

07 Wheels and tires
Glossary of tire terminology
07
175
•Tire information placard: A placard
showing the OE (Original Equipment) tire
sizes, recommended inflation pressure,
and the maximum weight the vehicle can
carry.
•Tire Identification Number (TIN): A num-
ber on the sidewall of each tire providing
information about the tire brand and man-
ufacturing plant, tire size and date of man-
ufacturer.
•Inflation pressure: A measure of the
amount of air in a tire.
•Standard load: A class of P-metric or Met-
ric tires designed to carry a maximum load
at 35 psi [37 psi (2.5 bar) for Metric tires].
Increasing the inflation pressure beyond
this pressure will not increase the tires load
carrying capability.
•Extra load: A class of P-metric or Metric
tires designed to carry a heavier maximum
load at 41 psi [43 psi (2.9 bar) for Metric
tires]. Increasing the inflation pressure
beyond this pressure will not increase the
tires load carrying capability.
•kPa: Kilopascal, a metric unit of air pres-
sure.
•PSI: Pounds per square inch, a standard
unit of air pressure.
•B-pillar: The structural member at the side
of the vehicle behind the front door.
•Bead area of the tire: Area of the tire next
to the rim.
•Sidewall of the tire: Area between the
bead area and the tread.
•Tread area of the tire: Area of the perim-
eter of the tire that contacts the road when
mounted on the vehicle.
•Rim: The metal support (wheel) for a tire or
a tire and tube assembly upon which the
tire beads are seated.
•Maximum load rating: a figure indicating
the maximum load in pounds and kilo-
grams that can be carried by the tire. This
rating is established by the tire manufac-
turer.
•Maximum permissible inflation pres-
sure: the greatest amount of air pressure
that should ever be put in the tire. This limit
is set by the tire manufacturer.
•Recommended tire inflation pressure:
inflation pressure, established by Volvo,
which is based on the type of tires that are
mounted on a vehicle at the factory. This
inflation pressure is affected by the number
of occupants in the vehicle, the amount of
cargo, and the speed at which the vehicle
will be driven for a prolonged period. This
information can be found on the tire infla-
tion placard(s) located on the driver's side
B-pillar and in the tire inflation table in this
chapter.
•Cold tires: The tires are considered to be
cold when they have the same temperature
as the surrounding (ambient) air. This tem-
perature is normally reached after the vehi-
cle has been parked for at least 3 hours.

07 Wheels and tires
Temporary spare
07
179
The spare tire in your vehicle1 is called a "Tem-
porary Spare".
Recommended tire pressure (see the placard
on the B-pillar or on the fuel filler door) should
be maintained irrespective of which position on
the vehicle the temporary spare tire is used.
In the event of damage to this tire, a new one
can be purchased from your Volvo retailer.
WARNING
Current legislation prohibits the use of the
"Temporary Spare" tire other than as a tem-
porary replacement for a punctured tire. It
must be replaced as soon as possible by a
standard tire. Road holding and handling
may be affected with the "Temporary
Spare" in use. Do not exceed 50 mph
(80 km/h).
CAUTION
The vehicle must not be driven with wheels
of different dimensions or with a spare tire
other than the one that came with the vehi-
cle. The use of different size wheels can
seriously damage your vehicle's transmis-
sion.
1Not on models equipped with the Tire sealing system.

07 Wheels and tires
Changing wheels
07
182
5. Continue to raise the wheel by turning the
crank clockwise. Raise the wheel a little bit
at a time and guide it around the rear axle
until it is securely seated in the storage
area.
6. When it is no longer possible to turn the
crank any further, check that the spare
wheel is securely in position in the storage
compartment.
G026997
Jack attachment points
Jack attachmentsThere are two attachment points for the jack on
each side of the vehicle. These attachment
points are under the center of each door.
WARNING
There is an attachment point on each side
of the vehicle located under the pillars
between the front and rear doors. This point
is used during the production process only,
and is NOT intended for attaching the jack.
G020332
WARNING
The undersides of accessory running
boards are not intended for attaching the
jack.
Changing a wheel1. Park the vehicle on a firm, level, non-slip-
pery surface.
2. Engage the parking brake and put the gear
selector in the Park position.
3. Loosen the wheel bolts by exerting down-
ward pressure on the lug wrench.
4. Remove the wheel cover (where applica-
ble) using the lug wrench in the tool bag.
5. With the wheels still on the ground, use the
lug wrench to loosen the wheel bolts 1/2 – 1
turn. Turn the bolts counterclockwise to
loosen the bolts.
G027000
Attaching the jack