Subaru WRX (2021 year). Manual in english — page 18
(285,1)
&
Manual mode
In the manual mode, you can use the
center differential control switch to adjust
the initial LSD torque as desired. When
this mode is selected, the “AUTO” indica-
tor disappears.
!
Center differential control switch
and indicator
The control switch is located beside the
parking brake lever. Push the control
switch forward or pull it rearward to change
the initial LSD torque.
The center differential indicator on the
combination meter gives six levels of
indication. The indicator and control switch
are linked; when operating the switch to
change the initial LSD torque, the indicator
changes accordingly.
Push the switch forward to increase the
initial LSD torque; when the “LOCK”
indicator appears, the initial LSD torque
setting is maximum. The center differential
will then be almost completely locked.
– CONTINUED –
Starting and operating/Driver’s Control Center Differential (C.DIFF/DCCD) (STI)
7-21
7
(286,1)
Pull the switch rearward to reduce the
initial LSD torque. When the lowest posi-
tion of the driver’s control center differen-
tial indicator is displayed, the initial LSD
torque will be minimum.
CAUTION
.
Do not operate the control switch
when a wheel slippage occurs.
Wait until the wheelspin has been
brought under control.
.
Under any of the following condi-
tions after setting to the manual
mode, pull the center differential
control switch to minimize the
initial LSD torque:
– 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 “LOCK”/“OFF” position. How-
ever, the initial LSD torque will be
minimized when the battery is discon-
nected and reconnected.
.
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
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 manually
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.
Starting and operating/Driver’s Control Center Differential (C.DIFF/DCCD) (STI)
7-22
(287,1)
Continuously variable trans-
mission
The continuously variable transmission is
electronically controlled and provides an
infinite number of forward speeds and 1
reverse speed. It also has a manual 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
.
Observe the following precau-
tions. Otherwise, the transmis-
sion could be damaged.
– Shift into the “P” or “R” posi-
tion only after the vehicle has
completely stopped.
– Do not shift from the “D”
position into the “R” position
or vice versa until the vehicle
has completely stopped.
.
Do not race the engine for more
than 5 seconds in any position
except the “N” or “P” position
when the brake is applied or
when chocks are used in the
wheels. This may cause the
transmission fluid to overheat.
.
Never move the vehicle as fol-
lows. Doing so may result in an
unexpected accident or malfunc-
tion.
– Moving rearward by inertia
with the select lever set in a
forward driving position.
– Moving forward by inertia with
the select lever set in the “R”
position.
.
When parking the vehicle, first
securely apply the parking brake
and then place the select lever in
the “P” position. Do not park 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 transmission will
shift at higher engine speeds than
when the coolant temperature is suffi-
ciently 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 transmission fluid
is replaced, you may feel that the
transmission 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.
.
When driving under continuous hea-
vy load conditions such as when climb-
ing a long, steep hill, the engine speed
or the vehicle speed may automatically
be reduced. This is not a malfunction.
This phenomenon results from the
engine control function maintaining
the cooling performance of the vehicle.
The engine and vehicle speed will
return to a normal speed when the
engine is able to maintain the optimum
cooling performance after the heavy
load decreases. Take extremely care
when driving under a heavy load.
.
The continuously variable transmis-
sion is a chain type system that pro-
vides superior transmission efficiency
for maximum fuel economy. At times,
depending on varying driving condi-
tions, a chain operating noise may be
– CONTINUED –
Starting and operating/Continuously variable transmission
7-23
7
(288,1)
heard that is characteristic of this type
of system.
&
Select lever
1)
Select lever button
: With the brake pedal depressed, shift
while pressing the select lever button
in.
: Shift while pressing the select lever
button in.
: Shift without pressing the select lever
button.
The select lever has four positions, “P”,
“R”, “N”, “D” and it also has an “M” position
for using the manual mode.
NOTE
For some models, to protect the engine
while the select lever is in the “P” or “N”
position, the engine is controlled so
that the engine speed may not become
too high even if the accelerator pedal is
depressed hard.
!
P (Park)
This position is for parking the vehicle and
starting the engine. In this position, the
transmission is mechanically locked to
prevent the vehicle from rolling freely.
When you park the vehicle, first apply the
parking brake firmly, then shift into the “P”
position. Do not hold the vehicle with only
the mechanical friction of the transmission.
To shift the select lever from the “P”
position 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 while pressing the select
lever button in.
Even when you have turned the ignition
switch to the “ACC” position, you can still
move the select lever from the “N” to “R”
position by depressing the brake pedal.
For details, refer to “Shift lock function”
Starting and operating/Continuously variable transmission
7-24
(289,1)
!
N (Neutral)
This position is for restarting a stalled
engine. In this position, the transmission is
neutral, meaning that the wheels and
transmission are not locked. Therefore,
the vehicle will roll freely, even on the
slightest incline unless the parking brake
or foot brake is applied.
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.
!
D (Drive)
This position is for normal driving. The
transmission shifts automatically and con-
tinuously into a suitable gear according to
the vehicle speed and the acceleration you
require. Also, while driving up and down a
hill, the transmission assists and controls
the driving performance and engine brak-
ing while corresponding to the road grade.
When more acceleration is required in the
“D” position, depress the accelerator pedal
fully to the floor and hold that position. The
transmission will automatically downshift.
If you operate one of the shift paddles
behind the steering wheel while driving in
the “D” position, the transmission will
temporarily switch to the manual mode.
In this mode, you can shift into any gear
position using the shift paddles. For details
about the manual mode, refer to “Selection
of manual mode”
7-25. Once the vehicle
speed stabilizes, the transmission will
switch from the manual mode back to the
“D” position for normal driving.
&
Selection of manual mode
With the vehicle either moving or station-
ary, move the select lever from the “D”
position to the “M” position to select the
manual mode.
1)
Upshift indicator
2)
Downshift indicator
3)
Gear position indicator
When the manual mode is selected, the
gear position indicator and upshift indica-
tor and/or downshift indicator on the
combination meter appear.
The gear position indicator shows the
currently selected gear in the following
range.
.
1st-to-8th-gear range (when the Sport
Sharp (S#) mode is selected)
.
1st-to-6th-gear range (in other situa-
tions)
The upshift and downshift indicators show
when a gear shift is possible. When the
upshift indicator “
” appears, upshifting is
possible. When the downshift indicator
– CONTINUED –
Starting and operating/Continuously variable transmission
7-25
7
(290,1)
“
” appears, downshifting is possible.
When both indicators appear, upshifting
and downshifting are both possible. When
the vehicle stops (for example, at traffic
signals), the downshift indicator turns off.
Gearshifts can be performed using the
shift paddle behind the steering wheel.
To upshift to the next higher gear position,
pull the shift paddle that has “
+
” indicated
on it. To downshift to the next lower gear
position, pull the shift paddle that has “
–
”
indicated on it.
To deselect the manual mode, return the
select lever to the “D” position from the “M”
position.
While driving with the select lever in the “D”
position, if you change gears by operating
the shift paddle, the gear position indicator
light illuminates and shows the current
gear condition.
CAUTION
Do not place or hang anything on the
shift paddles. Doing so may result in
accidental gear shifting.
NOTE
Please read the following points care-
fully and bear them in mind when using
the manual mode.
.
If you attempt to shift down when the
engine speed is too high, i.e., when a
downshift would push the tachometer
needle beyond the red zone, beeps will
be emitted to warn you that the down-
shift is not possible.
.
If you attempt to shift up when the
vehicle speed is too low, the transmis-
sion will not respond.
.
You can perform a skip-shift (for
example, from 4th to 2nd) by operating
the shift paddle twice in rapid succes-
sion.
.
The transmission automatically se-
lects 1st gear when the vehicle stops
moving.
.
If the temperature of the transmis-
sion fluid becomes too high, the “AT
OIL TEMP” warning light on the combi-
nation meter will illuminate. Immedi-
ately stop the vehicle in a safe location
and let the engine idle until the warning
light turns off.
.
By selecting the Sport Sharp (S#)
mode, upshifting will not occur auto-
matically. According to the road condi-
tions, shift change manually so that the
tachometer needle does not enter the
red zone. Also, if the engine revolutions
reach the specified number, the fuel
supply will be cut. In this case, perform
shift up operation.
!
To deselect the manual mode
To deselect the manual mode, return the
select lever to the “D” position from the “M”
position.
&
Shift lock function
The shift lock function helps prevent the
improper operation of the select lever.
.
You cannot move the select lever with
the ignition switch in the “ON” position and
the brake pedal depressed.
.
You cannot move the select lever from
the “P” position to any other position
unless 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 ignition switch from the “ACC” position
Starting and operating/Continuously variable transmission
7-26
(291,1)
to the “LOCK”/“OFF” position and remove
the key from the ignition switch.
.
If you turn the ignition switch to the
“ACC” position while the select lever is in
the “N” position, the select lever may not
be moved to the “P” position without
depressing the brake pedal and pressing
the select lever button.
!
Shift lock release
If you cannot move the select lever, turn
the ignition switch back to the “ON”
position then move the select lever to the
“P” position with the select lever button
pressed and brake pedal depressed.
If the select lever does not move after
performing the above procedure, check
and confirm the following and release the
shift lock accordingly.
.
When you cannot shift the select
lever from “P” to “N”:
Refer to “Shift lock release using the shift
lock release button”
.
When you cannot shift the select
lever from “N” to “R”, “P”:
Place the ignition switch in the “ACC”
position, then move the select lever to the
“P” position with the brake pedal de-
pressed.
If the select lever still does not move, refer
to “Shift lock release using the shift lock
release button”
If the shift lock cannot be released without
using the shift lock release button in the
above cases, there may be a malfunction
in the shift lock system or the vehicle
control system.
Contact a SUBARU dealer for an inspec-
tion as soon as possible.
!
Shift lock release using the shift
lock release button
Perform the following procedure to release
the shift lock.
1. Apply the parking brake and stop the
engine.
2. Wrap the tip of a flat-head screwdriver
with vinyl tape or a cloth and use it to
remove the shift lock cover. The shift lock
release button is located under the shift
lock cover.
3. Remove the grip portion of the screw-
driver.
4. While depressing the brake pedal,
insert a screwdriver into the hole, press
– CONTINUED –
Starting and operating/Continuously variable transmission
7-27
7
(292,1)
the shift lock release button using a
screwdriver, and then move the select
lever.
If the select lever does not move after
performing the above procedure, the shift
lock system may be malfunctioning. Con-
tact a SUBARU dealer for an inspection as
soon as possible.
&
Driving tips
NOTE
If the accelerator and brake pedals are
depressed at the same time, driving
torque may be restrained. This is not a
malfunction.
.
Always apply the foot or parking brake
when the vehicle is stopped in the “D” or
“R” position.
.
Make sure to apply the parking brake
when parking your vehicle. Do not hold the
vehicle with only the mechanical friction of
the transmission.
.
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 acceler-
ates or rapidly pulls away from a standstill.
This phenomenon does not indicate a
malfunction.
SI-DRIVE (if equipped)
SI-DRIVE (SUBARU Intelligent Drive)
works to maximize engine performance,
control and efficiency.
This system consists of three modes:
.
Intelligent (I) mode
.
Sport (S) mode
.
Sport Sharp (S#) mode
By adjusting the SI-DRIVE selector, the
character of the power unit changes.
&
Intelligent (I) mode
!
For smooth, efficient performance
driving
The Intelligent (I) mode provides well-
balanced performance with greater fuel
efficiency and smooth driveability without
stress. Power delivery is moderate during
acceleration for maximum fuel efficiency.
This is ideal for around-town driving and
situations that do not require full power
output. It provides better control in difficult
driving conditions, such as slippery roads
or loose surfaces, due to gentler throttle
response.
STI:
When the Intelligent (I) mode is selected, a
shift-up indicator “
” on the combination
meter will blink to signal the best time to
shift gears for maximum fuel efficiency.
Except STI:
The linear acceleration characteristic of
the Intelligent (I) mode is ideal for normal
driving.
Starting and operating/SI-DRIVE
7-28
(293,1)
&
Sport (S) mode
!
For all-around performance driving
The Sport (S) mode provides the engine
power desired by those who want to make
the driving experience their own personal
adventure.
STI:
The linear acceleration characteristic of
the Sport (S) mode is ideal for normal
driving.
&
Sport Sharp (S#) mode
!
For maximum performance driving
For sports-minded drivers, the Sport
Sharp (S#) mode offers an exhilarating
level of engine performance and control.
The throttle becomes more responsive
regardless of the engine speed. Delivering
maximum driving enjoyment, this mode is
ideal for driving on twisting roads and for
merging or overtaking other vehicles on
the freeway with confidence.
!
Except STI
When you select the Sport Sharp (S#)
mode with the select lever in the “D”
position, the transmission gear ratio will
shift from variable speed to eight-speed.
The select lever/gear position indicator
display will change from “D” to the gear
position.
When selecting Sport Sharp (S#) mode,
the following controls will be applied.
.
Uphill control
Prevents unnecessary shift-up/shift-down
during ascent.
.
Cornering control
While turning, if there is a large centrifugal
force, shift-up will not occur: during re-
acceleration.
.
Braking control
At the beginning of corners etc., heavy
application of the brake pedal will cause
automatic downshift and gently re-accel-
erate.
.
Sudden acceleration return control
During acceleration, if acceleration pedal
is returned suddenly (for example, at
corners etc.), shift-up will not be applied.
– CONTINUED –
Starting and operating/SI-DRIVE
7-29
7
(294,1)
&
SI-DRIVE switch
NOTE
.
The next time you turn on the engine,
the following SI-DRIVE mode will be
selected.
– Intelligent (I) mode if you have
turned off the engine in the Intelli-
gent (I) mode
– Sport (S) mode if you have turned
off the engine in the Sport (S) mode
or Sport Sharp (S#) mode
.
If the CHECK ENGINE warning light/
malfunction indicator light illuminates
during engine operation, the SI-DRIVE
mode changes to the Sport (S) mode. In
this case, it is not possible to change to
the Sport Sharp (S#) mode or Intelligent
(I) mode.
.
If the engine coolant temperature
becomes so high that the engine could
overheat, 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 in-
creases.
.
If any of the SI-DRIVE indicators
blink, the SI-DRIVE system may be
malfunctioning. Contact your SUBARU
dealer.
!
STI
SI-DRIVE switch
To select the Intelligent (I) mode:
Push the SI-DRIVE switch.
To select the Sport (S) mode:
Rotate the SI-DRIVE switch to the left.
To select the Sport Sharp (S#) mode:
Rotate the SI-DRIVE switch to the right.
After operating the SI-DRIVE switch, the
switch returns to its original position.
!
Except STI
SI-DRIVE switches
To select the Intelligent (I) mode:
.
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
other than Sport Sharp (S#) mode is
selected.
Starting and operating/SI-DRIVE
7-30
(295,1)
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 driv-
ing 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.
Power steering
&
STI
The vehicle is equipped with a hydraulic
power steering system. The power steer-
ing system operates only when the engine
is running.
If you lose power steering assist because
the engine stops or the system fails to
function, you can steer but it will take much
more effort.
CAUTION
Do not hold the steering wheel at the
fully locked position left or right for
more than 5 seconds. This may
damage the power steering pump.
NOTE
Right after the engine has been started
and before it has warmed up, you may
hear a noise coming from areas adja-
cent to the power steering pump which
is located at the right-front area of the
engine compartment. This noise is
normal. It does not indicate power
steering system trouble.
&
Except STI
Power steering warning light
The vehicle is equipped with an electric
power steering system. The power steer-
ing system operates only while the engine
is running. When you turn the ignition
switch to the “ON” position, the power
steering warning light on the combination
meter illuminates to inform the driver that
the warning system is functioning properly.
Then, if the engine started, the warning
light turns off to inform the driver that the
steering power assist is operational.
– CONTINUED –
Starting and operating/Limited slip differential (LSD) (STI)
7-31
7
(296,1)
CAUTION
While the power steering warning
light is illuminated, there may be
more resistance when the steering
wheel is operated. Drive carefully to
the nearest SUBARU dealer and
have the vehicle inspected immedi-
ately.
NOTE
If you operate the steering wheel in the
following ways, the power steering
control system may temporarily limit
the power assist in order to prevent the
system components, such as the con-
trol computer and drive motor, from
overheating.
.
You operate the steering wheel fre-
quently and turn it sharply while the
vehicle is maneuvered at extremely low
speeds, such as while frequently turn-
ing the steering wheel during parallel
parking.
.
You keep the steering wheel in the
fully turned position for a long period of
time.
At this time, there will be more resis-
tance when steering. However, this is
not a malfunction. Normal steering
force will be restored after the steering
wheel is not operated for a while and
the power steering control system has
an opportunity to cool down. However,
if the power steering is operated in a
non-standard way which causes power
assist limitation to occur too frequently,
this may result in a malfunction of the
power steering control system.
Braking
&
Braking tips
WARNING
Never rest your foot on the brake
pedal while driving. This can cause
dangerous overheating of the
brakes and needless wear on the
brake pads and linings.
!
When the brakes get wet
When driving in rain or after washing the
vehicle, the brakes may get wet. As a
result, brake stopping distance will be
longer. To dry the brakes, drive the vehicle
at a safe speed while lightly depressing the
brake pedal to heat up the brakes.
!
Use of engine braking
Remember to make use of engine braking
in addition to foot braking. When descend-
ing a grade, if only the foot brake is used,
the brakes may start working improperly
because of brake fluid overheating,
caused by overheated brake pads. To help
prevent this, shift into a lower gear to get
stronger engine braking.
!
Braking when a tire is punctured
Do not depress the brake pedal suddenly
when a tire is punctured. This could cause
Starting and operating/Braking
7-32
(297,1)
a loss of control of the vehicle. Keep
driving straight ahead while gradually
reducing speed. Then slowly pull off the
road to a safe place.
&
Brake system
!
Two separate circuits
Your vehicle has two separate circuit brake
systems. Each circuit works diagonally
across the vehicle. If one circuit of the
brake system should fail, the other half of
the system still works. If one circuit fails,
the brake pedal will go down much closer
to the floor than usual and you will need to
press it down much harder. And a much
longer distance will be needed to stop the
vehicle.
!
Brake booster
The brake booster uses engine manifold
vacuum to assist braking force. Do not turn
off the engine while driving because that
will turn off the brake booster, resulting in
poor braking power.
The brakes will continue to work even
when the brake booster completely stops
functioning. If this happens, however, you
will have to depress the pedal much harder
than normal and the braking distance will
increase.
!
Brake assist system
WARNING
Do not be overconfident about the
brake assist. It is not a system that
brings more braking ability to the
vehicle beyond its braking capabil-
ity. Always use the utmost care
when driving regarding vehicle
speed and safe distance.
CAUTION
When you need to brake suddenly,
continue depressing the brake pedal
strongly to obtain the effect of the
brake assist.
Brake assist is a driver assistance system.
It assists the brake power when the driver
cannot depress the brake pedal strongly
and the brake power is insufficient.
Brake assist generates the brake power
according to the speed at which the driver
depresses the brake pedal.
NOTE
When you depress the brake pedal
strongly or suddenly, the following
phenomena occur. However, even
though these occur, they do not indi-
cate any malfunctions, and the brake
assist system is operating properly.
.
You might feel that the brake pedal is
applied by lighter force and generates a
greater braking force.
.
You might hear an ABS operating
noise from the engine compartment.
&
Disc brake pad wear warning
indicators
The disc brake pad wear warning indica-
tors on the disc brakes give a warning
noise when the brake pads are worn.
– CONTINUED –
Starting and operating/Braking
7-33
7
(298,1)
If a squeaking or scraping noise is heard
from the disc brakes while braking, im-
mediately have your vehicle checked by
your SUBARU dealer.
&
High performance brake sys-
tem (Brembo equipped mod-
els)
Your vehicle is equipped with a high
performance brake system that provides
optimum braking force under various driv-
ing conditions. The brake system has the
following characteristics.
Brake noises
The brake pads are made of iron-based
material. Therefore, unusual noise may be
heard when depressing the brake pedal
slightly before stopping completely. How-
ever, this does not indicate a malfunction.
Discoloration
Frequent severe driving, such as repeated
driving on sharp uphill or downhill grades,
can cause discoloration of the paint on the
brake calipers. The discoloration will not
affect the braking performance.
Stuck brake pads
.
If the vehicle is left parked for an
extended period of time with the brake
system wet, the iron in the brake pads may
form rust and cause the brake pads and
disc rotors to stick together. This may
result in noise or vibration while driving. If
this occurs, fully depress the brake pedal
several times to free the brake pads.
.
If the vehicle is left parked for an
extended period of time in a cold tempera-
ture, the brake pads and disc rotors may
be frozen and stuck together. In this case,
it may be difficult to start the vehicle.
Brake dust
Due to the material used for the brake
pads, the wheels may become covered in
brake dust. This is not a malfunction, and
will not affect the brake performance.
ABS (Anti-lock Brake Sys-
tem)
The ABS prevents the lock-up of wheels
which may occur during sudden braking or
braking on slippery road surfaces. This
helps prevent the loss of steering control
and directional stability caused by wheel
lock-up.
When the ABS is operating, you may hear
a chattering noise or feel a slight vibration
in the brake pedal. This is normal when the
ABS operates.
The ABS will not operate when the vehicle
speed is below approximately 6 mph (10
km/h).
WARNING
Always use the utmost care in driv-
ing – overconfidence because you
are driving a vehicle with the ABS
could easily lead to a serious acci-
dent.
Starting and operating/ABS (Anti-lock Brake System)
7-34
(299,1)
CAUTION
.
The ABS does not always de-
crease stopping distance. You
should always maintain a safe
following distance from other
vehicles.
.
When driving on badly surfaced
roads, gravel roads, icy roads, or
over newly fallen snow, stopping
distances may be longer for a
vehicle with the ABS than one
without. When driving under
these conditions, therefore, re-
duce your speed and leave ample
distance from other vehicles.
.
When you feel the ABS operating,
you should maintain constant
brake pedal pressure. Do not
pump the brake pedal since
doing so may defeat the opera-
tion of the ABS system.
&
ABS self-check
Just after the vehicle is started, you may
feel on the brake pedal a vibration similar
to when the ABS operates, and you may
also hear the sound of the ABS working
from the engine compartment. This is
caused by an automatic functional test of
the ABS being carried out and does not
indicate any abnormal condition.
&
ABS warning light
Refer to “ABS warning light”
Electronic Brake Force Dis-
tribution (EBD) system
The EBD system maximizes the effective-
ness of the brakes by allowing the rear
brakes to supply a greater proportion of the
braking force. It functions by adjusting the
distribution of braking force to the rear
wheels in accordance with the vehicle’s
loading condition and speed.
The EBD system is an integral part of the
ABS and uses some of the ABS compo-
nents to perform its function of optimizing
the distribution of braking force. If any of
the ABS components used by the EBD
system malfunction, the EBD system also
stops working.
When the EBD system is operating, you
may hear a chattering noise or feel a slight
vibration in the brake pedal. This is normal
and does not indicate a malfunction.
– CONTINUED –
Starting and operating/Electronic Brake Force Distribution (EBD) system
7-35
7
(300,1)
&
Steps to take if EBD system
malfunctions
Brake and ABS warning light
If a malfunction occurs in the EBD system,
the system stops working and the brake
system warning light and ABS warning
light illuminate simultaneously.
The EBD system may be malfunctioning if
the brake system warning light and ABS
warning light illuminate simultaneously
while driving.
Even if the EBD system malfunctions, the
conventional braking system will still func-
tion. However, the rear wheels will be more
prone to locking when the brakes are
applied harder than usual and the vehicle’s
motion may therefore become somewhat
harder to control.
If the brake system warning light and ABS
warning light illuminate simultaneously,
take the following steps.
1. Stop the vehicle in the nearest safe, flat
location.
2. Apply the parking brake and turn off the
engine.
3. Restart the engine.
4. Release the parking brake.
Even if both warning lights turn off:
The EBD system may be malfunctioning.
Drive carefully to the nearest SUBARU
dealer and have the system inspected.
If both warning lights illuminate again
and remain illuminated after restarting
the engine:
1. Turn off the engine again.
2. Apply the parking brake.
3. Check the brake fluid level. For details
about checking the brake fluid level, refer
to “Checking the fluid level”
.
If the brake fluid level is not below the
“MIN” mark, the EBD system may be
malfunctioning. Drive carefully to the
nearest SUBARU dealer and have the
system inspected.
.
If the brake fluid level is below the “MIN”
mark, DO NOT drive the vehicle. Instead,
have the vehicle towed to the nearest
SUBARU dealer for repair.
WARNING
.
Driving with the brake system
warning light illuminated is dan-
gerous. This indicates your brake
system may not be working prop-
erly. If the light remains illumi-
nated, have the brakes inspected
by a SUBARU dealer immedi-
ately.
.
If at all in doubt about whether the
brakes are operating properly, do
not drive the vehicle. Have your
vehicle towed to the nearest
SUBARU dealer for repair.
Starting and operating/Electronic Brake Force Distribution (EBD) system
7-36
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