Subaru 2007 Legacy Owner's Manual page 371

Outside
Adjusted pressure
temperature
[psi (kPa, kgf/cm
front
38 (265, 2.65) 36 (250, 2.5)
308F (−18C)
40
108F (−128C)
(280, 2.8)
−108F
42 (295, 2.95) 40 (280, 2.8)
(−238C)
Example:
Tire size: 215/45R18 89Y
Standard tire pressures:
Front: 33 psi (230 kPa, 2.3 kgf/cm
Rear: 32 psi (220 kPa, 2.2 kgf/cm
Garage temperature: 608F (15.68C)
Outside
Adjusted pressure
temperature
[psi (kPa, kgf/cm
front
36 (250, 2.5)
308F (−18C)
38
108F (−128C)
(265, 2.65)
−108F
40 (280, 2.8)
(−238C)
If the low tire pressure warning light
comes on when you drive the vehicle in
cold outside air after adjusting the tire
pressures in a warm garage, re-adjust the
tire pressures using the method described
above. Then, increase the vehicle speed
to at least 20 mph (32 km/h) and check to
see that the low tire pressure warning light
2
)]
goes off a few minutes later. If the low tire
rear
pressure warning light does not go off, the
tire pressure monitoring system may not
be functioning normally. In this event, go
38
to a SUBARU dealer to have the system
(265, 2.65)
inspected as soon as possible.
While the vehicle is driven, friction be-
tween tires and the road surface causes
the tires to warm up. After illumination of
the low tire pressure warning light, any
increase in the tire pressures caused by
2
)
an increase in the outside air temperature
2
or by an increase in the temperature in the
)
tires can cause the low tire pressure
warning light to go off.
System resetting is necessary when the
2
)]
wheels are changed (for example, a
rear
switch to snow tires) and new TPMS
35 (240, 2.4)
valves are installed on the newly fitted
wheels. Have this work performed by a
37
(255, 2.55)
SUBARU dealer following wheel replace-
ment.
39 (270, 2.7)
It may not be possible to install TPMS
valves on certain wheels that are on the
market. Therefore, if you change the
wheels (for example, a switch to snow
tires), use wheels that have the same part
number as the standard-equipment
wheels. Without four operational TPMS
Maintenance and service
valve/sensors on the wheels, the TPMS
will not fully function and the warning light
in the instrument panel will flash.
When a tire is replaced, adjustments are
necessary to ensure continued normal
operation of the tire pressure monitoring
system. As with wheel replacement, there-
fore, you should have the work performed
by a SUBARU dealer.
WARNING
If the low tire pressure warning light
does not come on briefly after the
ignition switch is turned ON or the
light is flashing, you should have
your Tire Pressure Monitoring Sys-
tem checked at a SUBARU dealer as
soon as possible.
If this light comes on while driving,
never brake suddenly and keep
driving straight ahead while gradu-
ally reducing speed. Then slowly
pull off the road to a safe place.
Otherwise an accident involving
serious vehicle damage and serious
personal injury could occur.
If this light still comes on while
driving after adjusting the tire pres-
sure, a tire may have significant
damage and a fast leak that causes
the tire to lose air rapidly. If you have
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