Subaru 2009 Impreza - Manual (Page 239)

Driver ’s Control Center Dif-
ferential (DCCD) (WRX STI)
WARNING
Always use the utmost care when
driving. Being overconfident be-
cause you are driving a vehicle with
a driver
’s control center differential
could easily lead to a serious acci-
dent.
CAUTION
All the indicator lights will flash in
the event that the driver
’s control
center differential has a malfunc-
tion. Have the vehicle inspected by
your SUBARU dealer.
The driver ’s control center differential
allows you to freely change the degree
of limitation of the differential action
(limited slip differential (LSD) torque) of
your vehicle
’s center differential.
By using the center differential control
switch, you can set an initial LSD torque to
match the road surface conditions, driving
conditions and your driving style.
1) LSD torque
2) Traction torque
3) Initial LSD torque (maximum)
4) Initial LSD torque (minimum)
A) Initial LSD torque (adjustable)
B) Mechanical LSD torque
The driver ’s control center differential has
an auto mode and a manual mode. In the
auto mode, the system automatically
adjusts the initial LSD torque. In the
manual mode, you can change to the
desired mode manually by using the
center differential control switch.
NOTE
If you rapidly depress and release the
accelerator pedal while driving at low
speed, you may hear a knocking sound
from the vicinity of the center differen-
tial and rear differential. This sound
occurs because of the structure of the
center differential. It does not indicate a
problem.
& To change mode of driver’s
control center differential
Press the “AUTO-MANU” switch on the
center console to switch from auto mode
to manual mode or vice versa. When you
select the auto mode, the
“AUTO” indica-
tor light illuminates. When you select the
manual mode, the
“AUTO” indicator light
turns off.
Starting and operating
7-19
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