2006 SUBARU IMPREZA differential

22
Warning and indicator light
Mark Name PageSeatbelt warning light 3-14
SRS airbag system
warning light 3-15
Passenger airbag ON
indicator light 3-15
Passenger airbag OFF
indicator light 3-15
CHECK ENGINE
warning light/Malfunc-
tion indicator lamp 3-16
Charge warning light 3-16
Oil pressure warning
light 3-16
AT OIL temperature
warning light (if
equipped) 3-17
or ABS warning light 3-17
or Brake system warning
light 3-18
ON or
OFF or
Door open warning
light
3-19
All-Wheel Drive warn-
ing light (if equipped) 3-19
Turn signal indicator
lights 3-20
High beam indicator
light 3-20
Security indicator light
(if equipped) 2-3,
2-13
Intercooler water
spray warning light (if
equipped) 3-19
Light indicator light (if
equipped) 3-21
Cruise control indica-
tor light (if equipped) 3-20
Cruise control set indi-
cator light 3-20
REV indicator light (if
equipped) 3-21
Rear differential oil
temperature warning
light (if equipped) 3-17
Mark Name PageElectronic driver
’s con-
trol center differential
auto indicator (if
equipped) 3-20
Driver ’s control center
differential indicator
light (if equipped) 3-21
Driver ’s control center
differential indicator
and warning lights (if
equipped) 3-21
Mark Name Page

3
Instruments and controls
Ignition switch .................................................... 3-3
LOCK .............................................. ......................... 3-3
ACC ............................................... ........................... 3-4
ON ................................................ ............................ 3-4
START ............................................. ......................... 3-4
Key reminder chime ................................ ............... 3-5
Ignition switch light ............................. ................... 3-5
Key interlock release (AT vehicles only) .......... .... 3-5
Hazard warning flasher ............................ .......... 3-6
Meters and gauges (WRX-STI) ....................... ... 3-6
Combination meter illumination .................... ........ 3-6
Cancelling sequential illumination of the combination meter ................................. .............. 3-6
Speedometer ....................................... .................... 3-6
Odometer/Trip meter ............................... ............... 3-7
Tachometer ........................................ ..................... 3-7
Fuel gauge ........................................ ....................... 3-8
Temperature gauge ................................. ............... 3-8
Outside temperature indicator ..................... ......... 3-9
REV indicator light and buzzer (WRX-STI) ....... 3-9 Setting the alarm-level engine speed .............. ..... 3-10
Deactivating the REV alarm system ................. ..... 3-11
Meters and gauges (Except WRX-STI) ............. 3-1 1
Speedometer ....................................... .................... 3-11
Odometer/Trip meter ............................... ............... 3-11
Tachometer ........................................ ..................... 3-12
Fuel gauge ........................................ ....................... 3-12
Temperature gauge ................................. ............... 3-13
Outside temperature indicator ..................... ......... 3-13Warning and indicator lights ......................
....... 3-14
Seatbelt warning light and chime .................. ........ 3-14
SRS airbag system warning light ................... ....... 3-15
Front passenger ’s frontal airbag ON and OFF
indicators ........................................ ...................... 3-15
CHECK ENGINE warning light/Malfunction indicator lamp .................................... ................... 3-16
Charge warning light .............................. ................ 3-16
Oil pressure warning light ........................ ............. 3-16
AT OIL TEMPerature warning light (AT vehicles) ..................................... .................... 3-17
Rear differential oil temperature warning light (WRX-STI) ......................................... ..................... 3-17
ABS warning light ................................. .................. 3-17
Brake system warning light ........................ ........... 3-18
Door open warning light ........................... ............. 3-19
All-Wheel Drive warning light (AWD AT vehicles
– if equipped) ..................................... ................... 3-19
Intercooler water spray warning light (WRX-STI) ......................................... ..................... 3-19
Selector lever position indicator (AT vehicles) ... . 3-20
Turn signal indicator lights ...................... .............. 3-20
High beam indicator light ......................... .............. 3-20
Cruise control indicator light .................... ............. 3-20
Cruise control set indicator light ................ .......... 3-20
Driver ’s control center differential auto indicator
light (WRX-STI) ................................... .................. 3-20
Driver ’s control center differential indicator and
warning lights (WRX-STI) .......................... .......... 3-21
Headlight indicator light (WRX-STI) ............... ....... 3-21
REV indicator light (WRX-STI) ..................... .......... 3-21

Instruments and controls 3-17
– CONTINUED –
is at the proper level but the light remains
on, contact your nearest SUBARU dealer
immediately.
AT OIL TEMPerature
warning light (AT vehi-
cles)
The AT oil temperature warning light
comes on when the ignition switch is
turned to the
“ON ” position and goes out
after approximately two seconds.
If this light comes on when the engine is
running, it may indicate that the automatic
transmission fluid temperature is too hot.
If the light comes on while driving, it is un-
necessary to stop the vehicle, but avoid
driving up steep grades or in stop and go
traffic.
Automatic transmission control
system warning
If the light flashes after the engine starts,
it may indicate that the automatic trans-
mission control system is not working
properly. Contact your nearest SUBARU dealer for service immediately.
Rear differential oil tem-
perature warning light
(WRX-STI)
If this light comes on when the engine is
running, it may indicate that the rear differ-
ential oil temperature is too hot.
At this time, the driver
’s control center dif-
ferential will automatically cancel the cur-
rent torque-distribution ratio setting and
adopts its minimum ratio.
If the light comes on while driving, reduce
vehicle speed and stop the vehicle at the
nearest safe place.
Park the vehicle for several minutes. After
the light goes out, you can start driving.
If the light does not go out, contact the
nearest SUBARU dealer for service.
NOTE
If the tire pressures are not correct
and/or the tires are not all the same
size and brand, the rear differential will
be heavily loaded when the vehicle is
driven, resulting in an abnormally high
oil temperature.
The rear differential oil will deterio-
rate if its temperature increases
enough for the rear differential oil tem-
perature warning light to come on. It is
advisable to have the rear differential
oil replaced as soon as possible.
ABS warning light
The ABS warning light comes on when the
ignition switch is turned to the “ON ” posi-
tion and goes out after approximately two
seconds.
This is an indication that the ABS system
is working properly.
Do not operate the engine with the
oil pressure warning light on. This
may cause serious engine damage.
Reduce vehicle speed and park the
vehicle in a safe place as soon as
possible if the R.DIFF TEMP light
comes on. Continued driving with
this light on can damage the rear dif-
ferential and other parts of the pow-
ertrain.
If the warning light behaves as fol-
lows, the ABS system may not work
properly.
When the warning light is on, the
ABS function shuts down; however,
the conventional brake system con-
tinues to operate normally.
(U.S.)
(Canada)

3-20 Instruments and controls
Selector lever position indi-
cator (AT vehicles)
This indicator shows the position of the
selector lever.
Turn signal indicator
lights
These lights show the operation of the
turn signal or lane change signal.
If the indicator lights do not blink or blink
rapidly, the turn signal bulb may be
burned out. Replace the bulb as soon as
possible. Refer to the “Replacing bulbs ”
section in chapter 11.
High beam indicator
light
This light shows that the headlights are in
the high beam mode.
This indicator light also comes on when
the headlight flasher is operated.
Cruise control indica-
tor light
The cruise control indicator light comes on
when the ignition switch is turned to the“ ON ” position and goes out after approxi-
mately three seconds.
This light comes on when the “CRUISE ”
main switch is pressed.
If you move the cruise control lever or
press the main switch button while turning
the ignition switch “ON ”, the cruise control
function is deactivated and the “CRUISE ”
indicator light flashes. To reactivate the
cruise control function, turn the ignition
switch back to the “ACC ” or “LOCK ” posi-
tion, and then turn it again to the “ON ” po-
sition.
Cruise control set indi-
cator light
The cruise control set indicator light
comes on when the ignition switch is
turned to the “ON ” position and goes out after approximately three seconds.
This light comes on when vehicle speed
has been set.
Driver
’s control center
differential auto indica-
tor light (WRX-STI)
This light functions while the ignition
switch is ON. When on, it indicates that
the driver ’s control center differential is set
to AUTO mode. It goes off when the driv-
er ’s control center differential ’s manual
mode switch is pressed. For details, refer
to Chapter 7, “Driver ’s Control Center Dif-
ferential (DCCD) (WRX-STI) ”.
300622

Instruments and controls 3-21
Driver’s control center differ-
ential indicator and warning
lights (WRX-STI)
Indicator lights
When illuminated, one of these indiator
lights indicates the initial limited slip differ-
ential (LSD) torque currently selected for
the center differential.
Warning light
The bottom indicator light “ ” flashes in
the event of failure of the driver ’s control
center differential. Have the vehicle in-
spected by your SUBARU dealer. For de-
tails, refer to Chapter 7, “Driver ’s Control
Center Differential (DCCD) (WRX-STI) ”.
Headlight indicator
light (WRX-STI)
This light comes on when the headlight
switch is placed in the “ ” or “ ”
position.
REV indicator light (WRX-
STI)
This light comes on when the engine speed reaches a level set by driver and
when the tachometer needle enters the
red zone.
300330
700379

7
Starting and operating
Fuel ...................................................................... 7-2
Fuel requirements ................................. ................. 7-2
Fuel filler lid and cap ........................... ................... 7-4
State emission testing (U.S. only) ................ .... 7-5
Preparing to drive ................................ .............. 7-6
Starting the engine ............................... .............. 7-7
Manual transmission vehicle ....................... .......... 7-7
Automatic transmission vehicle .................... ........ 7-7
Stopping the engine ............................... ............ 7-8
Manual transmission – 6 speeds (WRX-STI) ... 7-9
Selecting reverse gear ............................ ............... 7-9
Shifting speeds ................................... .................... 7-9
Driving tips ...................................... ........................ 7-10
Manual transmission – 5 speeds (except
WRX-STI) .......................................... ................ 7-11
Shifting speeds ................................... .................... 7-11
Driving tips ...................................... ........................ 7-12
Driver ’s Control Center Differential (DCCD)
(WRX-STI) ......................................... ............... 7-12
Auto mode ......................................... ...................... 7-13
Manual mode ....................................... .................... 7-13
Temporary release ................................. ................. 7-15
Automatic transmission ............................ ........ 7-16
Selector lever for automatic transmission ......... .. 7-16
Shift lock release ................................ .................... 7-19
Limited slip differential (LSD) (if equipped) ..... 7-20
Power steering .................................... ............... 7-21Braking ...........................................
..................... 7-21
Braking tips ...................................... ....................... 7-21
Brake system ...................................... .................... 7-21
Disc brake pad wear warning indicators ............ .. 7-22
ABS (Anti-lock Brake System) ...................... .... 7-22
ABS system self-check ............................. ............. 7-22
ABS warning light ................................. .................. 7-23
Electronic Brake Force Distribution (EBD) system ............................................ .................. 7-24
Steps to take if EBD system fails ................. ......... 7-24
Parking your vehicle .............................. ............ 7-25
Parking brake ..................................... ..................... 7-25
Parking tips ...................................... ....................... 7-25
Cruise control .................................... ................. 7-27
To set cruise control ............................. ................. 7-27
To temporarily cancel the cruise control .......... ... 7-28
To turn off the cruise control .................... ............. 7-28
To change the cruising speed ...................... ......... 7-28

7-12 Starting and operating
Turbo models
mph (km/h)
Driving tips
Do not drive with your foot resting on the
clutch pedal and do not use the clutch to
hold your vehicle at a standstill on an up-
grade. Either of those actions may cause clutch damage.
Do not drive with your hand resting on the
shift lever. This may cause wear on the
transmission components.
When it is necessary to reduce vehicle
speed due to slow traffic, turning corners,
or driving up steep hills, downshift to a
lower gear before the engine starts to la-
bor.
On steep downgrades, downshift the
transmission to 4th, 3rd or 2nd gear as
necessary; this helps to maintain a safe
speed and to extend brake pad life.
In this way, the engine provides a braking
effect. Remember, if you
“ride ” (over use)
the brakes while descending a hill, they
may overheat and not work properly.
The engine may, on rare occasions, knock
when the vehicle rapidly accelerates or
rapidly pulls away from a standstill. This
phenomenon is not an indication of a
problem in your vehicle.
Driver ’s Control Center Dif-
ferential (DCCD) (WRX-STI)1st 34 (54)
2nd 59 (95)
3rd 85 (136)
When shifting down a gear, ensure
that the vehicle is not travelling at a
speed exceeding the Maximum Al-
lowable Speed for the gear which is
about to be selected. Failure to ob-
serve this precaution can lead to en-
gine over-revving and this in turn
can result in engine damage.
In addition, sudden application of
engine brakes when the vehicle is
travelling on a slippery surface can
lead to wheel locking; as a conse-
quence, control of the vehicle may
be lost and the risk of an accident in-
creased.
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.
700379

Starting and operating 7-13
– CONTINUED –
The driver’s control center differential al-
lows you to freely change the degree of
limitation of the differential action (limited
slip differential (LSD) torque) of your vehi-
cle ’s center differential.
By using the center differential control di-
al, 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
A) Initial LSD torque (adjustable)
B) Mechanical LSD torque
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 oc-
curs because of the structure of the
center differential. It does not indicate
a problem.
Auto mode
In the auto mode, the system estimates
the driving and road conditions using sig-
nals from the wheel speed sensor, throttle
position sensor, steering angle sensor
and brake switch, etc. According to the re-
sult, it electronically and automatically
controls the degree of limitation of the dif-
ferential action (LSD torque) to optimize
the differential action of the center differ-
ential. When the ignition switch is turned
ON, the “AUTO ” indicator light in the com-
bination meter comes on. The system can
be switched to a manual mode.
Manual mode
In the manual mode, you can use the cen-
ter differential control dial to adjust the ini-
In the event of failure of the driver
’s
control center differential, the “ ”
indicator light will flash. Have the
vehicle inspected by your SUBARU
dealer.
700378
LOCK1
2A
B
700123