Subaru WRX & WRX STI Manuals 2015 WRX & WRX STI Owner's Manual | Page 359

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Starting and operating/Limited slip differential (LSD) (STI)

& SI-DRIVE switches
NOTE

other than Sport Sharp (S#) mode is
selected.

If any of the SI-DRIVE indicators blink,
the SI-DRIVE system may be malfunctioning. Contact your SUBARU dealer.

NOTE

SI-DRIVE switches

To select the Intelligent (I) mode, perform
either of the following procedures.
. Press the “S/I” switch when the Sport
(S) mode is selected
. Press the “S#/I” switch when the Sport
Sharp (S#) mode is selected
To select the Sport (S) mode, press the “S/
I” switch when any mode other than Sport
(S) mode is selected.
To select the Sport Sharp (S#) mode,
press the “S#/I” switch when any mode

. The next time you turn on the
engine, after you turned off the engine
in the Sport (S) mode or Sport Sharp
(S#) mode, the SI-DRIVE mode changes
to the Intelligent (I) mode.
. While the engine is running, if the
CHECK ENGINE warning light/malfunction indicator light illuminates, the SIDRIVE mode changes to the Sport (S)
mode. In this case, it is not possible to
change to another mode.
. If there is a possibility that the
engine could overheat because of a
temperature increase of the engine
coolant, it is not possible to change to
the Sport Sharp (S#) mode. While the
vehicle is in the Sport Sharp (S#) mode,
it changes to the Sport (S) mode when
the engine coolant temperature increases.

Limited slip differential (LSD)
(STI)
The LSD provides optimum distribution of
power according to the difference in
revolutions between the right and left
wheels that may be caused by certain
driving conditions, thereby improving driving stability on snow-covered, muddy or
other slippery roads or when high speed
driving.

CAUTION
. Never start the engine while a tire
on one side is jacked up, as the
vehicle may move.
. If one tire is spinning in mud,
avoid continued spinning at high
speed as this could adversely
affect the LSD.
. If you use a temporary spare tire
to replace a flat tire, be sure to
use the original temporary spare
tire stored in the vehicle. Using
other sizes will adversely affect
the LSD.