Subaru 2002 Legacy Owner's Manual page 297

D It is always important to reduce speed when approaching a cor-
ner, even if the vehicle is equipped with VDC.
D All four wheels should be fitted with tires of the same size, type,
and brand; furthermore, the amount of wear should be the same for
all four tires. If these precautions are not observed and non-match-
ing tires are used, it is quite possible that the VDC system will be
unable to operate correctly as intended.
D Always turn off the engine before replacing a tire as failure to do
so may render the VDC system unable to operate correctly.
B VDC system monitor
n VDC OFF indicator light
D The VDC OFF indicator light turns on initially when the ignition key
is turned to the ON position; it subsequently turns off 6 seconds after
the engine is started.
D This light turns on to indicate that the VDC system is in non-opera-
tion mode. This does not constitute failure of the VDC system.
NOTE
D The VDC OFF indicator light may stay on for a while after the
engine has been started, especially in cold weather. This occurs
because the engine has not yet warmed up and is completely nor-
mal. The light will turn off when the engine has reached a suitable
operating temperature.
D When an engine problem occurs and the CHECK ENGINE
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HB4010FB