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2007 Volvo XC90
station gauges may be inaccurate.
● Use the recommended cold inflation pressure 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 "blowout," with unexpected loss of vehicle control and increased risk of injury.
● Under-inflated tires reduce the load carrying 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 certification label.
Checking tire pressure
A 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 tires
Inflation pressure should be checked when the tires are cold.
pg. 153 Wheels and tires
General information
The tires are considered to be cold when they have the same temperature as the surrounding
(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 pressure 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 pressures 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:
- Remove the cap from the valve on one tire, then firmly press the tire gauge onto the valve.
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