Subaru WRX & WRX STI Manuals 2015 WRX & WRX STI Owner's Manual | Page 355

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Starting and operating/SI–DRIVE (STI)

. Do not keep the vehicle in a stationary
position on an uphill grade by using the
“D” position. Use the brake instead.
. The engine may, on rare occasions,
knock when the vehicle rapidly accelerates or rapidly pulls away from a standstill.
This phenomenon does not indicate a
malfunction.

SI-DRIVE (STI)
SI-DRIVE (SUBARU Intelligent Drive)
works to maximize engine performance,
control and efficiency.
This system consists of three modes:
Intelligent (I), Sport (S), and Sport Sharp
(S#). By adjusting the SI-DRIVE selector,
the character of the power unit changes.

& Intelligent (I) mode
3. While depressing the brake pedal,
insert a screwdriver into the hole, press
the shift lock release button using a
screwdriver, and then move the select
lever.

! For smooth, efficient performance
driving

If the select lever does not move after
performing the above procedure, the shift
lock system may be malfunctioning. Contact a SUBARU dealer for an inspection
as soon as possible.

& Driving tips
. Always apply the foot or parking brake
when the vehicle is stopped in the “D” or
“R” position.
. Always apply the parking brake when
parking your vehicle. Do not hold the
vehicle with only the mechanical friction
of the transmission.

The Intelligent (I) mode provides wellbalanced performance with greater fuel
efficiency and smooth driveability without
stress. Power delivery is moderate during
acceleration for maximum fuel efficiency.