Volvo XC90: Wheels and tires / Tire direction of rotation
Tires with tread designed to roll in only one direction are marked with an
arrow on the sidewall.

The arrow shows the tire's direction of rotation.
- The tire should maintain the same direction of rotation throughout its service
life.
- Tires should only be moved between the front and back, never from right
to left or vice versa.
- Incorrectly mounted tires impair the vehicle's braking properties and ability
to force aside rain, snow and slush.
- The tires with the most tread should always be mounted on the rear wheels
to help reduce the risk of skidding.
NOTE
Use tires of the same type, dimensions and make (manufacturer) on each
axle.
The function of the tires is to carry loads, provide traction on r oad
surfaces, reduce vibrations and protect the wheels from wear. The tires significantly
influence the vehicle's driving characteristics...
The tread wear indicator shows the status of the tire's tread.
The tread wear indicator is a narrow elevated strip running across the tire's
longitudinal tread grooves...
Other information:
The following is a glossary of tire-related terms.
The tire suppliers may have additional markings, notes or warnings such as standard
load, radial tubeless, etc.
Tire information placard: A placard showing the OE (Original Equipment)
tire sizes, recommended inflation pressure, and the maximum weight the vehicle
can carry...
Park Assist (PAS1) may not be able to detect all conditions in
all situations and functionality may therefore be limited in certain cases.
The driver should be aware of the following limitations for Park Assist:
WARNING
The parking sensors have dead/blind spots where objects cannot be
detected...