2012 VOLVO XC90 engine

07 Wheels and tires
Tire Pressure Monitoring System (TPMS)
07

195
ensure that the replacement or alternate tires
and wheels allow the TPMS to continue to
function properly.
NOTE
TPMS indicates low tire pressure but does
not replace normal tire maintenance. For
information on correct tire pressure, please
refer to the tire inflation pressure table in this
chapter or consult your Volvo retailer.
Erasing warning messagesWhen a low tire pressure warning message has
been displayed, and the tire pressure warning
light has come on:
1. Use a tire pressure gauge to check the
inflation pressure of all four tires.
2. Re-inflate the tire(s) to the correct pressure
(consult the tire pressure placard or the
table see page 177).
3. Drive the vehicle for several minutes at a
speed of 20 mph (30 km/h) or faster.
> This will erase the warning text and the
warning light will go out.
WARNING
Incorrect inflation pressure could lead to tire
failure, resulting in a loss of control of the
vehicle.
Changing wheels with TPMSPlease note the following when changing or
replacing the factory installed TPMS wheels/
tires on the vehicle:
•Only the factory-mounted wheels are
equipped with TPMS sensors in the valves.
•If the vehicle is equipped with a temporary
spare tire, this tire does not have a TPMS
sensor.
•If wheels without TPMS sensors are moun-
ted on the vehicle, TIRE PRESS SYST
SERVICE REQUIRED will be displayed
each time the vehicle is driven above
25 mph (40 km/h) for 10 minutes or more.
•Once TPMS sensors are properly installed,
the warning message should not reappear.
•Volvo recommends that TPMS sensors be
fitted on all wheels used on the vehicle.
Volvo does not recommend moving sen-
sors back and forth between sets of
wheels.
NOTE
If a tire is changed or if the TPMS sensor is
moved to another wheel, the sensor’s seal,
nut and valve core should be replaced.
CAUTION
When inflating tires with TPMS valves, press
the pump's mouthpiece straight onto the
valve to help avoid bending or otherwise
damaging the valve.
Recalibrating TPMS (Canadian models
only)
In certain cases, it may be necessary to reca-
librate TPMS to conform to Volvo's recom-
mended tire inflation pressures (see the infla-
tion pressure table on page 177), for example,
if higher inflation pressure is necessary when
transporting heavy loads, etc.
To recalibrate:
1. Switch off the engine.
2. Inflate the tires to the desired pressure and
turn the ignition key to position I or II (see
page 141 for additional information).
3. Turn the thumb wheel on the left-side
steering wheel lever until
Tire pressure
Calibration appears in the display.
4.
Press and hold the Reset button on the
left-side steering wheel lever until
TIRE
PRESSURE CALIBRATED is displayed.

07 Wheels and tires
Tire Pressure Monitoring System (TPMS)
07
196
Activating/deactivating TPMS (Canadian
models only)
1. Switch off the engine.
2.
Turn the ignition key to position I or II.
3.
Press and hold the Reset button on the
left-side steering wheel lever until
TIRE
PRESS SYST OFF is displayed.
Repeat steps 1-3 to turn TPMS on again.

08 Car care
Washing and cleaning the vehicle
08

201
CAUTION
•Avoid waxing or polishing plastic or rub-
ber components
•Polishing chromed strips can wear
away or damage the surface
•Polishes containing abrasive sub-
stances should not be used
NOTE
When washing the vehicle, remember to
remove dirt from the drain holes in the doors
and sills.
WARNING
•When the vehicle is driven immediately
after being washed, apply the brakes
several times in order to remove any
moisture from the brake linings.
•Engine cleaning agents should not be
used when the engine is warm. This
constitutes a fire risk.
Automatic washing – simple and quick
•We do NOT recommend washing your
vehicle in an automatic wash during thefirst few months (because the paint will not
have hardened sufficiently).
•An automatic wash is a simple and quick
way to clean your vehicle, but it is worth
remembering that it may not be as thor-
ough as when you yourself go over the
vehicle with sponge and water. Keeping
the underbody clean is most important,
especially in the winter. Some automatic
washers do not have facilities for washing
the underbody.
•Before driving into an automatic car wash,
make sure that side view mirrors, auxiliary
lamps, etc, are secure, and that any
antenna(s) are retracted or removed. Oth-
erwise there is risk of the machine dislodg-
ing them.
Exterior lightingCondensation may form temporarily on the
inside of the lenses of exterior lights such as
headlights, fog lights, or tail lights. This is nor-
mal and the lights are designed to withstand
moisture. Normally, condensation will dissi-
pate after the lights have been on for a short
time.
Polishing and waxing
•Normally, polishing is not required during
the first year after delivery, however, wax-
ing may be beneficial.
•Before applying polish or wax the vehicle
must be washed and dried. Tar spots can
be removed with kerosene or tar remover.
Difficult spots may require a fine rubbing
compound.
•After polishing use liquid or paste wax.
•Several commercially available products
contain both polish and wax.
•Waxing alone does not substitute for pol-
ishing a dull surface.
•A wide range of polymer-based car waxes
can be purchased today. These waxes are
easy to use and produce a long-lasting,
high-gloss finish that protects the body-
work against oxidation, road dirt and fad-
ing.
•Do not polish or wax your vehicle in direct
sunlight (the surface of the vehicle should
not be warmer than 113° F (45° C).

08 Car care
Paint touch up
08
204
Model plate with paint color code (1).1
Paint damage requires immediate attention to
avoid rusting. Make it a habit to check the finish
regularly – when washing the vehicle for
instance. Touch-up if necessary.
Paint repairs require special equipment and
skill. Contact a trained and qualified Volvo
service technician for any extensive damage.
Minor scratches can be repaired by using
Volvo touch-up paint.
Color code
Make sure you have the right color. The color
code number is on the model plate in the
engine compartment.
Minor stone chips and scratchesMaterial:
•Primer – can
•Paint – touch-up pen
•Brush
•Masking tape
•If the stone chip has not gone down to the
bare metal and an undamaged color coat
remains, you can add paint immediately
after removing dirt.
NOTE
When touching up the vehicle, it should be
clean and dry. The surface temperature
should be above 60° F (15° C).
Minor scratches on the surfaceIf the stone chip has not penetrated down to
the metal and an undamaged layer of paint
remains, the touch-up paint can be applied as
soon as the spot has been cleaned.
G020345
Deep scratches
•Place a strip of masking tape over the dam-
aged surface. Pull the tape off so that any
loose flakes of paint adhere to it.
•Thoroughly mix the primer and apply it with
a small brush. When the primer surface is
dry, the paint can be applied using a brush.
Mix the paint thoroughly; apply several thin
paint coats and let dry after each applica-
tion.
If there is a longer scratch, you may want to
protect surrounding paint by masking it off.
1The model plate is located on the passenger's side center door pillar.

206
Volvo service......................................................................................... 208
Maintaining your vehicle....................................................................... 209
Working on your vehicle........................................................................ 211
Engine compartment............................................................................. 213
Engine oil............................................................................................... 214
Fluids..................................................................................................... 217
Wiper blades......................................................................................... 219
Battery................................................................................................... 220
Replacing bulbs.................................................................................... 223
Fuses..................................................................................................... 232

09 Maintenance and servicing
Maintaining your vehicle09

209 Owner maintenance
Periodic maintenance requirements and inter-
vals are described in your vehicle's Warranty
and Service Records Information booklet.
The following points can be carried out
between the normally scheduled maintenance
services.
Each time the vehicle is refueled
•Check the engine oil level
•Clean the windshield, windshield wipers,
headlights, and tail lights
Monthly
•Check cold tire pressure in all tires. Inspect
the tires for wear.
•Check that engine coolant and other fluid
levels are between the
indicated "min" and "max" markings.
•Clean interior glass surfaces with a glass
cleaner and soft paper towels.
•Wipe driver information displays with a soft
cloth.
•Visually inspect battery terminals for cor-
rosion. Corrosion may indicate a loose ter-
minal connector, or a battery near the end
of its useful service life. Consult a trained
and qualified Volvo service technician for
additional information.
As needed
•Wash the vehicle, including the undercar-
riage, to reduce wear that can be caused
by a buildup of dirt, and corrosion that can
be caused by salt residues.
•Clean leaves and twigs from air intake
vents at the base of the windshield, and
from other places where they may collect.
•Complete service information for qualified
technicians is available online for purchase
or subscription at www.volvote-
chinfo.com.
Emission inspection readiness
What is an Onboard Diagnostic System
(OBD II)?
OBD II is part of your vehicle's computerized
engine management system. It stores diagnos-
tic information about your vehicle's emission
controls. It can light the Check Engine light
(MIL) if it detects an emission control "fault." A
"fault" is a component or system that is not
performing within an expected range. A fault
may be permanent or temporary. OBD II will
store a message about any fault.
How do states use OBD II for emission
inspections?
Many states connect a computer directly to a
vehicle's OBD II system. The inspector can
then read "faults." In some states, this type ofinspection has replaced the tailpipe emission
test.
How can my vehicle fail OBD II emission
inspection?
Your vehicle can fail OBD II emission inspec-
tion for any of the following reasons.
•If your Check Engine (MIL) light is lit, your
vehicle may fail inspection.
•If your vehicle's Check Engine light was lit,
but went out without any action on your
part, OBD II will still have a recorded fault.
Your vehicle may pass or fail, depending
on the inspection practices in your area.
•If you had recent service that required dis-
connecting the battery, OBD II diagnostic
information may be incomplete and "not
ready" for inspection. A vehicle that is not
ready may fail inspection.
How can I prepare for my next OBD II
emission inspection?
•If your Check Engine (MIL) light is lit – or
was lit but went out without service, have
your vehicle diagnosed and, if necessary,
serviced by a qualified Volvo technician.
•If you recently had service for a lit Check
Engine light, or if you had service that
required disconnecting the battery, a
period of driving is necessary to bring the
OBD II system to "ready" for inspection. A
half-hour trip of mixed stop-and-go/high-

09 Maintenance and servicing
Working on your vehicle09

211
Note the following before you begin working
on your vehicle:
Battery
•Ensure that the battery cables are correctly
connected and tightened.
•Never disconnect the battery when the
engine is running (e.g., when replacing the
battery).
•Never use a fast charger to charge the bat-
tery. The battery cables should be discon-
nected when recharging.
•The battery contains acid that is both cor-
rosive and poisonous. It is important that
the battery is handled in an environmen-
tally friendly way. See page 220 for more
information on handling the battery.
Hoisting the vehicle
G027001
If a garage jack is used to lift the vehicle, the
two jack attachments points should be used.
They are specially reinforced to bear the weight
of the vehicle (see the illustration). A garage
jack can also be placed under the front of the
engine support frame. Take care not to dam-
age the splash guard under the engine. Ensure
that the jack is positioned so that the vehicle
cannot slide off it. Always use axle stands or
similar structures. The vehicle's gross vehicle
weight is between 5770 lbs (2630 kg) and
6080 lbs (2760 kg). Use a jack and stands rated
for this weight.If a two-post hoist is used to lift the vehicle, the
front and rear lift arm pads should be centered
under the reinforced lift plates on the inboard
edge of the sill rail (see illustration).
WARNING
The ignition system has very high voltage!
The voltage in the ignition system is dan-
gerous!
Do not touch spark plugs, ignition cables or
the ignition coil when the engine is running
or the ignition is switched on!
The ignition should be switched off when:
•Conducting engine tests.
•Replacing parts in the ignition system,
such as spark plugs, ignition coil, dis-
tributor, ignition cables, etc.
WARNING
Never try to repair any part of the SRS/
SIPS/WHIPS/IC systems yourself. Any
interference in the system could cause mal-
function and serious injury. Any work should
only be performed by an authorized Volvo
workshop.

09 Maintenance and servicing
Working on your vehicle 09
212
Belt check
Check the belt regularly to make sure it is in
good condition and is clean. A worn or dirty belt
can cause poor cooling and low alternator out-
put as well as impair the operation of the power
steering and the air conditioning unit.
NOTE
The drive belt is equipped with a self-ten-
sioning mechanism and requires no adjust-
ment between changes.
WARNING
The engine must not be running when this
check is performed.
Check coolant level
The cooling system must be filled with coolant
and not leak to operate at maximum efficiency.
Check the coolant level regularly. The level
should be between the MAX and MIN marks
on the expansion tank. The check should be
made with particular thoroughness when the
engine is new or when the cooling system has
been drained.
Do not remove the filler cap other than for top-
ping up with coolant. Frequent removal may
prevent coolant circulation between the engineand the expansion tank during engine warm up
and cooling.
Changing coolant
Normally, the coolant does not need to be
changed. If the system must be drained, con-
sult a trained and qualified Volvo service tech-
nician.
Do not top off with water only. This reduces the
rust-protective and antifreeze qualities of the
coolant and has a lower boiling point. It can
also cause damage to the cooling system if it
should freeze. Top off with Volvo Genuine
Coolant/Antifreeze only (a 50/50 mix of water
and antifreeze.
CAUTION
The cooling system must always be kept
filled to the correct level. If it is not kept filled,
there can be high local temperatures in the
engine which could result in damage. Dif-
ferent types of antifreeze/coolant may not
be mixed.
WARNING
•Never remove the expansion tank cap
while the engine is warm. Wait until the
engine cools.
•If it is necessary to top off the coolant
when the engine is warm, unscrew the
expansion tank cap slowly so that the
overpressure dissipates.