Volvo XC90 Owner's Manual page 546

WHEELS AND TIRES
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Tread depth
Road conditions with ice, slush and low tem-
peratures place considerably higher demands
on tires than summer conditions. Volvo there-
fore recommends not driving on snow tires
that have a tread depth of less than 4 mm
(0.15 inch).
Related information
When changing wheels (p. 536)
•
Winter driving (p. 428)
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Tread wear indicator (p. 525)
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544
Snow chains
Using snow chains and/or snow tires can
help improve traction in winter driving condi-
tions.
Volvo does not recommend use of snow
chains on wheel dimensions larger than
19 inches.
WARNING
Use Volvo genuine snow chains or equiva-
lent snow chains that are suitable for the
vehicle model and the tire and wheel sizes.
Only one-sided snow chains are permit-
ted.
If uncertain about snow chains, Volvo rec-
ommends contacting an authorized Volvo
workshop. Use of the wrong snow chains
could cause serious damage to the vehicle
and result in an accident.
CAUTION
Snow chains can be used on the vehicle,
with the following restrictions:
Always follow the manufacturer's
•
installation instructions carefully. Install
chains as tightly as possible and
retighten periodically.
Only put snow chains on the front
•
wheels (also applies to all-wheel drive
vehicles).
If accessory, aftermarket or "custom"
•
tires and wheels with different dimen-
sions than the original tires and wheels
are used, snow chains in some cases
may NOT be used. Sufficient distance
between the chains and brakes, sus-
pension and body components must
be maintained.
Check local regulations regarding the
•
use of snow chains before installing.
Never exceed the snow chain manu-
•
facturer's specified maximum speed
limit. Under no circumstances should
you exceed 50 km/h (30 mph).
Avoid bumps, holes or sharp turns
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when driving with snow chains.
Avoid driving on surfaces without
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snow as this wears out both the snow
chains and the tires.