four wheel drive VOLVO XC90 2003 Owners Manual

2003 VOLVO XC90
However, for optimum road holding on icy or snow-covered roads, we recom\
mend suitable winter tires
on all four wheels. When replacing tires, be sure that the new tires are\
the same size designation, type
(radial) and preferably from the same manufacturer, on all four wheels\
. Otherwise there is a risk of
altering the vehicle's roadholding and handling characteristics.
NOTE: When storing wheel/tire assemblies (e.g. winter tires and wheels), eit\
her stand the assemblies
upright, or suspend them off the ground. Laying wheel/tire assemblies on\
their sides for prolonged
periods can cause wheel and/or tire damage.
New tires
Remember that tires are perishable goods. As of 2000, manufacturing year\
and week will be indicated
with 4 digits (e.g. 0015 means that the tire is manufactured year 2000,\
week 15).
Improving tire economy:
l Maintain correct tire pressure. See the tire pressure label on the insid\
e of the fuel filler door.
l Drive smoothly: avoid fast starts, hard braking and tire screeching.
l Tire wear increases with speed.
l Correct front wheel alignment is very important.
l Unbalanced wheels impair tire economy and driving comfort.
l If tires are rotated, they must be kept on the same side of the vehicle \
so that they revolve in the same
direction as before rotation.
l Hitting curbs or potholes can damage the tires and/or wheels permanently\
.
Flat spots
All tires become warm during use. After cooling, when the vehicle is par\
ked, the tires have a tendency to
distort slightly, forming flat spots. These flat spots can cause vibrati\
ons similar to the vibrations caused
by unbalanced wheels. They do, however, disappear when the tire warms up\
. The degree to which flat
spots form depends on the type of cord used in the tire. In cold weather\
, it takes longer for the tire to
warm up and consequently longer for the flat spot to disappear.
file:///K|/ownersdocs/2003/2003_XC90/03xc90_08.htm (2 of 12)12/30/2006\
4:19:01 PM

2003 VOLVO XC90
CAUTION
The vehicle must not be driven with wheels of different dimensions or wi\
th a spare tire other than the
one that came with the vehicle. The use of different size wheels can ser\
iously damage your vehicle's
transmission.
pg. 115 Wheels and tires
Snow chains
Snow chains can be used on your Volvo with the following restrictions:
l Snow chains should be installed on front wheels only. Use only Volvo app\
roved snow chains.
l If accessory, aftermarket or "custom" tires and wheels are installed and\
are of a size different than the
original tires and wheels, chains in some cases CANNOT be used. Sufficie\
nt clearances between chains
and brakes, suspension and body components must be maintained.
l Some strap-on type chains will interfere with brake components and there\
fore CANNOT be used.
l All Wheel Drive models: Snow chains should only be installed on the front wheels. Only chains
adapted for AWD models should be used.
NOTE: Consult your Volvo retailer for additional snow chain information.
CAUTION
- Check local regulations regarding the use of snow chains before instal\
ling.
- Always follow the chain manufacturer's installation instructions caref\
ully. Install chains as tightly as
possible and retighten periodically.
- Never exceed the chain manufacturer's specified maximum speed limit. (\
Under no circumstances
should you exceed 31 mph 50 km/h)
- Avoid bumps, holes or sharp turns when driving with snow chains.
- The handling of the vehicle can be adversely affected when driving wit\
h chains. Avoid fast or sharp
turns as well as locked wheel braking.
Snow tires, studded tires*
Tires for winter use:
Owners who live in or regularly commute through areas with sustained per\
iods of snow or icy driving
conditions are strongly advised to fit suitable winter tires to help ret\
ain the highest degree of traction.
It is important to install winter tires on all four wheels to help retai\
n traction during cornering, braking,
and accelerating. Failure to do so could reduce traction to an unsafe le\
vel or adversely affect handling.
Do not mix tires of different design as this could also negatively affec\
t overall tire road grip.
file:///K|/ownersdocs/2003/2003_XC90/03xc90_08.htm (3 of 12)12/30/2006\
4:19:01 PM

2003 VOLVO XC90
Volvo recommends 225/70 R16 (235/65 R17 on seven-seat models with the T\
6 turbo engine) winter
tires on all four wheels.
Winter tires wear more quickly on dry roads in warm weather. They should\
be removed when the winter
driving season has ended.
Studded tires should be run-in 300-600 miles (500 -1000 km) during whi\
ch the vehicle should be driven
as smoothly as possible to give the studs the opportunity to seat proper\
ly in the tires. The tires should
have the same rotational direction throughout their entire lifetime. In \
other words, if you wish to rotate
the wheels, make sure that the same wheels are always on the same side o\
f the vehicle.
NOTE: Please consult state or provincial regulations restricting the use of st\
udded winter tires before
installing such tires.
* Where permitted
pg. 116 Wheels and tires
Tire pressure
Tire pressure label
Checking and correcting tire pressure
The tire pressure label is located on the inside of the fuel filler door\
.
l Check the tire pressure regularly.
l The tire pressure should be corrected only when the tires are cold.
file:///K|/ownersdocs/2003/2003_XC90/03xc90_08.htm (4 of 12)12/30/2006\
4:19:01 PM