2011 SUBARU IMPREZA WRX manual transmission

&Abbreviation list
You will find several abbreviations in this
manual. The meanings of the abbrevia-
tions are shown in the following list.
Abbreviation Meaning
A/C Air conditioner A/ELR Automatic/Emergency locking retractor
ABS Anti-lock brake system
AKI Anti knock index
ALR Automatic locking retractor
AT Automatic transmission
ATF Automatic transmission fluid
AWD All-wheel drive DCCD Driver
’s control center differ-
ential
DRL Daytime running lightEBD Electronic brake force distri- bution
ELR Emergency locking retractor
FWD Front-wheel drive
GAW Gross axle weight
GAWR Gross axle weight rating
GVW Gross vehicle weight
GVWR Gross vehicle weight rating
HID High intensity discharge Abbreviation Meaning
INT Intermittent
LATCH Lower anchors and tethers for
children
LED Light emitting diode
LSD Limited slip differential
MIL Malfunction indicator lamp MMT Methylcyclopentadienyl man-
ganese tricarbonyl
MT Manual transmission
OBD On-board diagnostics
RON Research octane number
SI-DRIVE SUBARU Intelligent Drive SRS Supplemental restraint sys- tem
TIN Tire identification number TPMS Tire pressure monitoring sys- tem
VDC Vehicle dynamics control Vehicle symbols
There are some of the symbols you may
see on your vehicle.
For warning and indicator lights, refer to “
Warning and indicator lights ”F 24.
Mark Name
WARNING
CAUTION
Power door lock (turbo mod- els)
Power door unlock (turbo models)
Power door lock and unlock
(non-turbo models)
Power window with automatic
open (all models) and close (if
equipped) function
Passengers ’windows lock
and unlock
Fuel 3
– CONTINUED –

3-26Instruments and controls
& SI-DRIVE indicator light (STI)
1) Intelligent (I) mode
2) Sport (S) mode
3) Sport Sharp (S#) mode
This light indicates the current SI-DRIVE mode.
For details of SI-DRIVE mode, refer to “SI-
DRIVE (STI) ”F 7-28.
& Shift-up indicator light (STI)
While selecting the Intelligent (I) mode of
SI-DRIVE, this indicator light illuminates
and informs the driver about the upshift
timing for fuel-efficient driving. &
Select lever/gear position in-
dicator (AT models)
When the ignition switch is turned to the “ON ”position, all of the select lever/gear
position indicators illuminate for 2 sec-
onds, and then the indicator shows the
position of the select lever.
When the manual mode is selected, the
gear position indicator (which shows the
current gear selection) and the upshift/
downshift indicator light up. Refer to“ Automatic transmission ”F 7-22. &
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 “Replacing bulbs ”F 11-47.
& High beam indicator light
This light shows that the headlights are in
the high beam mode.
This indicator light also illuminates when
the headlight flasher is operated. &Cruise control indica-
tor light
This light illuminates when the “CRUISE ”
main switch is pressed. NOTE . If you press the “CRUISE ”main
switch button while turning the ignition switch “ON ”, the cruise control func-
tion is deactivated and the cruise
control indicator light flashes. To re-
activate the cruise control function,
turn the ignition switch back to the“ Acc ”or “LOCK ”position, and then

Fuel...................................................................... 7-3
Fuel requirements ............................................... 7-3
Fuel filler lid and cap ........................................... 7-4
State emission testing (U.S. only) ...................... 7-7
Preparing to drive ............................................... 7-8
Starting the engine .............................................. 7-9
MT models .......................................................... 7-9
AT models ........................................................... 7-9
Stopping the engine ........................................... 7-10
Remote engine start system (dealer option) .............................................................. 7-11
Starting your vehicle .......................................... 7-11
Remote start safety features ............................... 7-11
Entering the vehicle while it is running via remote start ................................................................. 7-12
Entering the vehicle following remote engine start shutdown ......................................................... 7-12
Pre-heating or pre-cooling the interior of the vehicle ............................................................. 7-12
Service mode ..................................................... 7-12
Remote engine start transmitter programming and programmable feature option ..................... 7-12
System maintenance .......................................... 7-13
Manual transmission –6 speeds (STI) ............. 7-15
Selecting reverse gear ........................................ 7-15
Shifting speeds .................................................. 7-16
Driving tips ........................................................ 7-16
Manual transmission –5 speeds (except
STI) ................................................................... 7-17
Shifting speeds .................................................. 7-17
Driving tips ........................................................ 7-18 Driver
’s Control Center Differential (DCCD)
(STI) ................................................................. 7-18
To change mode of driver ’s control center
differential ....................................................... 7-19
Auto mode ........................................................ 7-19
Manual mode ..................................................... 7-20
Temporary release ............................................. 7-22
Automatic transmission .................................... 7-22
Select lever ....................................................... 7-23
Shift lock function ............................................. 7-24
Selection of manual mode .................................. 7-26
Driving tips ........................................................ 7-27
SPORT mode ..................................................... 7-28
SI-DRIVE (STI) .................................................... 7-28
Intelligent (I) mode ............................................. 7-28
Sport (S) mode .................................................. 7-29
Sport Sharp (S#) mode. ...................................... 7-29
SI-DRIVE selector .............................................. 7-30
Limited slip differential (LSD) (STI) .................. 7-30
Power steering ................................................... 7-31
Braking ............................................................... 7-31
Braking tips ....................................................... 7-31
Brake system .................................................... 7-31
Disc brake pad wear warning indicators ............. 7-32
ABS (Anti-lock Brake System) .......................... 7-32
ABS system self-check ...................................... 7-33
ABS warning light .............................................. 7-33
Electronic Brake Force Distribution (EBD) system ............................................................. 7-33
Steps to take if EBD system malfunctions ..... ..... 7-33
Starting and operating
7

Manual transmission–6
speeds (STI)
The manual transmission is a fully syn-
chromeshed, 6-forward-speed and 1-re-
verse-speed transmission.
The shift pattern is shown on the shift
lever knob.
WARNING
. Do not drive the vehicle with the
clutch disengaged (i.e., when the
clutch pedal is depressed) or
with the shift lever in the neutral
position. Engine braking has no
effect in either of these condi-
tions and the risk of an accident
is consequently increased.
. Do not engage the clutch (i.e.,
release the clutch pedal) sud-
denly when starting the vehicle.
By doing so the vehicle might
unexpectedly accelerate or the
transmission could malfunction. &
Selecting reverse gear
1) Slider
You must raise the slider and hold it in that
position before you can move the shift
lever to the “R ”position.
To change gears, fully depress the clutch
pedal, move the shift lever, and gradually
let up on the clutch.
If it is difficult to shift into gear, put the
transmission in neutral, release the clutch
pedal momentarily, and then try again.
CAUTION
Shift into reverse ONLY when the
vehicle has completely stopped. It
may cause damage to the transmis-
sion to try shifting into reverse when Starting and operating
7-15
– CONTINUED –

Manual transmission–5
speeds (except STI)
The manual transmission is a fully syn-
chromeshed, 5-forward-speed and 1-re-
verse-speed transmission.
The shift pattern is shown on the shift
lever knob. When shifting from 5th gear to
reverse gear, first return the shift lever to
the neutral position then shift into reverse
gear.
To change gears, fully depress the clutch
pedal, move the shift lever, and gradually
let up on the clutch pedal.
If it is difficult to shift into gear, put the
transmission in neutral, release the clutch
pedal momentarily, and then try again.
WARNING
. Do not drive the vehicle with the
clutch disengaged (i.e., when the
clutch pedal is depressed) or
with the shift lever in the neutral
position. Engine braking has no
effect in either of these condi-
tions and the risk of an accident
is consequently increased.
. Do not engage the clutch (i.e.,
release the clutch pedal) sud-
denly when starting the vehicle.
By doing so the vehicle might
unexpectedly accelerate or the
transmission could malfunction.
CAUTION
Shift into reverse ONLY when the
vehicle has completely stopped. It
may cause damage to the transmis-
sion to try shifting into reverse when
the vehicle is moving. &
Shifting speeds
! Recommended shifting speeds
The best compromise between fuel econ-
omy and vehicle performance during
normal driving is ensured by shifting up
at the speeds listed in the following table.
Shift up mph (km/h)
1st to 2nd 15 (24)
2nd to 3rd 25 (40)
3rd to 4th 40 (64)4th to 5th 45 (72)
! Maximum allowable speeds
The following tables show the maximum
speeds that are possible with each differ-
ent gear.
Never exceed the speed limit listed in the
following table for each gear position
except for brief acceleration in an emer-
gency. The tachometer ’s needle will enter
the red area if these speeds are ex-
ceeded. Failure to observe this precaution
can lead to excessive engine wear and
poor fuel economy. Starting and operating
7-17
– CONTINUED –

7-22Starting and operating
.When a temporary spare tire is
installed
. When your vehicle is towed
. When the vehicle is stopped
with the manual mode se- lected
NOTE . A higher initial LSD torque setting
gives the vehicle greater traction when
driving straight ahead but makes cor-
nering more difficult. Remember this
when adjusting the initial LSD torque.
In general, higher initial LSD torque
settings assist driving on slippery
roads and lower settings for non-slip-
pery roads. When the vehicle is stuck
in snow or mud, setting the initial LSD
torque to the maximum will help to free
the vehicle.. The setting of the initial LSD torque
will remain even when the auto mode is
selected or the ignition switch is turned
to the “OFF ”position. However, the
initial LSD torque will be minimized
when the battery is disconnected andreconnected.. During cornering or when making
turns (especially when going into the
garage), the rotational difference be-
tween the front and rear wheels may cause a braking effect accompanied by
vibration and noise. This does not
indicate a problem. The phenomenon
will disappear when setting the initial
LSD torque to the minimum.
In the auto mode, it controls the initial
LSD torque automatically. While in the
auto mode, this phenomenon some-
times occurs depending on the driving
condition, however, it does not indicate
a problem..
Use the center differential indicator
light only as a rough indication of the
initial LSD torque.. If you operate the center differential
control switch while quickly accelerat-
ing or turning a tight corner, you may
feel slight shocks. This is due to
differential action by the center differ-
ential and does not indicate a problem.
& Temporary release
When the driver stops the vehicle and
pulls the parking brake lever after manu-
ally setting the initial LSD torque, the LSD
torque is temporarily minimized. However
the indicator on the combination meter
continues to show the driver ’s selected
initial LSD torque. When the driver re-
leases the parking brake lever, the initial
LSD torque set by the driver is restored. Automatic transmission
The automatic transmission is electroni-
cally controlled and provides 4 forward
speeds and 1 reverse speed. Also, it has a
manual mode and a SPORT mode.
WARNING
Do not shift from the “P ” or “N ”
position into the “D ” or “R ” position
while depressing the accelerator
pedal. This may cause the vehicle
to jump forward or backward.
CAUTION
. Shift into the “P ” or “R ” position
only after the vehicle is comple-
tely stopped. Shifting while the
vehicle is moving may cause
damage to the transmission.
. Do not race the engine for more
than 5 seconds in any position
except the “N ” or “P ” position
when the brake is set or when
chocks are used in the wheels.
This may cause the automatic
transmission fluid to overheat.
. Avoid shifting from one of the
forward driving positions into the

“R ” position or vice versa until
the vehicle has completely
stopped. Such shifting may
cause damage to the transmis-sion.
. When parking the vehicle, first
securely apply the parking brake
and then place the select lever inthe “P ” position. Avoid parking
for a long time with the select
lever in any other position as
doing so could result in a dead
battery.
NOTE . When the engine coolant tempera-
ture is still low, the automatic transmis-
sion will upshift to higher engine
speeds than when the coolant tempera-
ture is sufficiently high in order to
shorten the warm-up time and improve
driveability. The gearshift timing will
automatically shift to the normal timing
after the engine has warmed up.. Immediately after ATF (automatic
transmission fluid) is replaced, you
may feel that the automatic transmis-
sion operation is somewhat unusual.
This results from invalidation of data
which the on-board computer has
collected and stored in memory to allow the transmission to shift at the
most appropriate times for the current
condition of your vehicle. Optimized
shifting will be restored as the vehicle
continues to be driven for a while.
& Select lever
: Shifting is possible with the brake pedal
depressed.
: Shifting is possible whether the brakepedal is depressed or not. However,
while the ignition switch is in the “LOCK ”
or “Acc ”position, shifting is not possible
if the brake pedal is not depressed.
Depress the brake pedal and move the
select lever.
: Shifting is possible whether the brake pedal is depressed or not.
The select lever has four positions, “P ”,
“ R ”, “N ”, “D ”and also has manual gate for using
“SPORT ”mode or manual mode.
! P (Park)
This position is for parking the vehicle and
starting the engine.
In this position, the transmission is me-
chanically locked to prevent the vehicle
from rolling freely.
When you park the vehicle, first set the
parking brake fully, then shift into the “P ”
position. Do not hold the vehicle with only
the transmission.
To shift the select lever from the “P ”to any
other position, you should depress the
brake pedal fully then move the select
lever. This prevents the vehicle from
lurching when it is started. ! R (Reverse)
This position is for backing the vehicle.
To shift from the “N ”to “R ”position, stop
the vehicle completely then move the
lever to the “R ”position.
! N (Neutral)
This position is for restarting a stalledengine.
In this position the wheels and transmis-
sion are not locked. In this position, the
transmission is neutral; the vehicle will roll
freely, even on the slightest incline unless Starting and operating
7-23
– CONTINUED –

7-24Starting and operating
the parking brake or foot brake is applied.
Avoid coasting with the transmission in neutral.
During coasting, there is no engine brak-
ing effect.
WARNING
Do not drive the vehicle with the
select lever in the “N ” (neutral)
position. Engine braking has no
effect in this condition and the risk
of an accident is consequently in-creased.
NOTE
If the select lever is in the “N ” position
when you stop the engine for parking,
you may not subsequently be able to
move it to the “R ” or “P ” position. If
this happens, turn the ignition switch tothe “ON ”position. You will then be able
to move the select lever to the “P ”
position. For details, refer to “Shift lock
function ”F 7-24.
! D (Drive)
This position is for normal driving.
The transmission automatically shifts into
a suitable gear from 1st to 4th according to
the vehicle speed and the acceleration
you require. When more acceleration is required in this
position, depress the accelerator pedal
fully to the floor and hold that position. The
transmission will automatically downshift
to 3rd, 2nd or 1st gear. When you release
the pedal, the transmission will return to
the original gear position.
To use the
“SPORT ”mode, move the lever
from this position into the manual gate. To
use the manual mode, move the lever
from this position into the manual gate
then move it toward the “+ ” and “ ” ends.
! While climbing a grade
When driving up a hill, undesired upshift to
4th gear is prevented from taking place
when the accelerator is released. This
minimizes the chance of subsequent
downshifting to a lower gear when accel-
erating again. This prevents repeated
upshifting and downshifting resulting in a
smoother operation of the vehicle.
NOTE
The transmission may downshift to 2nd
or 1st gear, depending on the way the
accelerator pedal is depressed to ac-
celerate the vehicle again. ! While going down a hill
When you are descending a hill or any
other slope while braking with the“ SPORT ”mode selected, the transmission may downshift to 3rd or 2nd gear depend-
ing on how hard you depress the brake
pedal, causing engine braking to work.
Reacceleration for a short time will cause
the transmission to upshift normally.
NOTE . A 4th-to-3rd automatic downshift
will not occur at speeds above 50
mph (80 km/h) and a 3rd-to-2nd auto-
matic downshift will not occur at
speeds above 24 mph (38 km/h).. Automatic downshifts to 3rd or 2nd
may occur even when driving on a level
road depending on conditions, such as
how hard you depress the brake pedal. & Shift lock function
The shift lock function helps prevent the
improper operation of the select lever. . The select lever cannot be operated
unless the ignition switch is turned to the “ ON ”position and the brake pedal is
depressed. . The select lever cannot be moved from
the “P ” position to any other position
before the brake pedal is depressed.
Depress the brake pedal first, and then
operate the select lever. . Only the “P ”position allows you to turn
the key from the “Acc ”position to the