ECO mode SUBARU WRX 2016 Repair Manual

CAUTIONTrapping small animals in the cool-
ing fan and belts of the engine may
result in a malfunction. Check that
no small animal enters the engine
compartment and under the vehicle
before starting the engine.
NOTE Engine oil, engine coolant, brake fluid,
washer fluid and other fluid levels
should be checked daily, weekly or at
fuel stops. Starting and stopping the
engine (models without
push-button start system) & Starting engine CAUTIONDo not operate the starter motor
continuously for more than 10 sec-
onds. If the engine fails to start after
operating the starter for 5 to 10
seconds, wait for 10 seconds or
more before trying again.
NOTE It may be difficult to start the engine
when the battery has been discon-
nected and reconnected (for mainte-
nance or other purposes). This diffi-
culty is caused by the electronically
controlled throttle ’ s self-diagnosis
function. To overcome it, keep the
ignition switch in the “ ON ” position
for approximately 10 seconds before
starting the engine. ! General precautions when starting
engine
WARNING. Never start the engine from out-
side the vehicle. It may result in
an accident.
. Do not leave the engine running
in locations with poor ventilation,
such as a garage and indoors.
The exhaust gas may enter the
vehicle or indoors, and it may
result in carbon monoxide poi-
soning.
. Do not start the engine near dry
foliage, paper, or other flam-
mable substances. The exhaust
pipe and exhaust emissions can
create a fire hazard at high
temperatures.
CAUTION
. If the engine is stopped during
driving, the catalyst may over-
heat and burn.Starting and operating/Starting and stopping the engine (models without push – button start system)
– CONTINUED –7-9

Starting and operating/Starting and stopping the engine (models without push – button start system)
. When starting the engine, be sure
to sit in the driver ’ s seat (except
when using the remote engine
start system).
NOTE . Avoid rapid racing and rapid accel-
eration immediately after the engine
has started.
. For a short time after the engine has
started, the engine speed is kept high.
When the warm-up is completed, the
engine speed lowers automatically.
. On rare occasions, it may be difficult
to start the engine depending on the
fuel and the usage condition (repeated
driving of a distance in which the
engine has not warmed up sufficiently).
In such a case, it is recommended that
you change to a different brand of fuel.
. On rare occasions, transient knock-
ing may be heard from the engine when
the accelerator is operated rapidly
such as a rapid start-up and a rapid
acceleration. This is not a malfunction.
. The engine starts more easily when
the headlights, air conditioner and rear
window defogger are turned off.
. After the engine starts, the engine
speed will be kept high until the engine
has warmed up sufficiently. ! MT models
1. Apply the parking brake.
2. Turn off unnecessary lights and ac-
cessories.
3. Depress the clutch pedal to the floor
and shift the shift lever into neutral. Hold
the clutch pedal to the floor while starting
the engine.
The starter motor will only operate when
the clutch pedal is depressed fully to the
floor.
4. Turn the ignition switch to the “ ON ”
position and check the operation of the
warning and indicator lights. Refer to
“ Warning and indicator lights ” F 3-13.
5. Turn the ignition switch to the “ START ”
position without depressing the accelera-
tor pedal. Release the key immediately
after the engine has started.
If the engine does not start, try the
following.
(1) Turn the ignition switch to the
“ LOCK ” position and wait for at least
10 seconds. After checking that the
parking brake is firmly set, turn the
ignition switch to the “ START ” position
while depressing the accelerator pedal
slightly (approximately a quarter of the
full stroke). Release the accelerator
pedal as soon as the engine starts.
(2) If this fails to start the engine, turn the ignition switch back to the “ LOCK ”
position and wait for at least 10
seconds. Then fully depress the accel-
erator pedal and turn the ignition
switch to the “ START ” position. If the
engine starts, quickly release the
accelerator pedal.
(3) If this fails to start the engine, turn
the ignition switch again to the “ LOCK ”
position. After waiting for 10 seconds
or longer, turn the ignition switch to the
“ START ” position without depressing
the accelerator pedal.
(4) If the engine still refuses to start,
contact your nearest SUBARU dealer
for assistance.
6. Confirm that all warning and indicator
lights have turned off after the engine has
started. The fuel injection system auto-
matically lowers the idle speed as the
engine warms up.
! CVT models
1. Apply the parking brake.
2. Turn off unnecessary lights and ac-
cessories.
3. Shift the select lever to the “ P ” or
“ N ”
position
(preferably the “ P ” position).
The starter motor will only operate when
the select lever is at the “ P ” or “ N ” position.
4. Turn the ignition switch to the “ ON ”7-10

position and check the operation of the
warning and indicator lights. Refer to
“ Warning and indicator lights ” F 3-13.
5. Turn the ignition switch to the “ START ”
position without depressing the accelera-
tor pedal. Release the key immediately
after the engine has started.
If the engine does not start, try the
following.
(1) Turn the ignition switch to the
“ LOCK ” position and wait for at least
10 seconds. After checking that the
parking brake is firmly set, turn the
ignition switch to the “ START ” position
while depressing the accelerator pedal
slightly (approximately a quarter of the
full stroke). Release the accelerator
pedal as soon as the engine starts.
(2) If this fails to start the engine, turn
the ignition switch back to the “ LOCK ”
position and wait for at least 10
seconds. Then fully depress the accel-
erator pedal and turn the ignition
switch to the “ START ” position. If the
engine starts, quickly release the
accelerator pedal.
(3) If this fails to start the engine, turn
the ignition switch again to the “ LOCK ”
position. After waiting for 10 seconds
or longer, turn the ignition switch to the
“ START ” position without depressing
the accelerator pedal. (4) If the engine still refuses to start,
contact your nearest SUBARU dealer
for assistance.
6. Confirm that all warning and indicator
lights have turned off after the engine has
started. The fuel injection system auto-
matically lowers the idle speed as the
engine warms up.
While the engine is warming up, make
sure that the select lever is at the “ P ” or
“ N ” position and that the parking brake is
applied.
CAUTIONIf you restart the engine while the
vehicle is moving, shift the select
lever into the “ N ” position. Do not
attempt to place the select lever of a
moving vehicle into the “ P ” posi-
tion.
& Stopping the engine The ignition switch should be turned off
only when the vehicle is stopped and the
engine is idling.
WARNING
Do not stop the engine when the
vehicle is moving. This will cause
loss of power to the power steering and the brake booster, making steer-
ing and braking more difficult. It
could also result in accidental acti-
vation of the “ LOCK ” position on the
ignition switch, causing the steering
wheel to lock.Starting and operating/Starting and stopping the engine (models without push – button start system)
7-11

Starting and operating/Starting and stopping engine (models with push – button start system)
Starting and stopping engine
(models with push-button
start system) & Safety precautionsRefer to “ Safety precautions ” F 2-10.
& Operating range for push-
button start systemRefer to “ Operating range for push-button
start system ” F 3-6.
& Starting engine
WARNING. There are some general precau-
tions when starting the engine.
Carefully read the precautions
described in “ General precau-
tions when starting engine ” F 7-
9.
. If the indicator on the push-
button ignition switch flashes in
green after the engine has
started, never drive the vehicle.
The steering is still locked, and it
may result in an accident. CAUTION. When the operation indicator on
the push-button ignition switch is
flashing in orange, there may be
a malfunction with the vehicle.
Contact a SUBARU dealer imme-
diately.
. If the indicator on the push-
button ignition switch is flashing
in green after the engine has
started, it means that the steering
is still locked. Depress the brake
pedal while moving the steering
wheel to the right and left, and
press the push-button ignition
switch.
. Do not continue pushing the
push-button ignition switch for
more than 10 seconds. Doing so
could cause a malfunction. If the
engine does not start, stop push-
ing the push-button ignition
switch and turn off the engine.
Wait 10 seconds, and then push
the push-button ignition switch
to start the engine.
NOTE
. When the push-button ignition
switch is pressed while depressing the clutch pedal (MT models) or the
brake pedal (CVT models), the engine
starter operates for a maximum of 10
seconds and after starting the engine,
the starter stops automatically.
. When the push-button ignition
switch is pressed while depressing
the clutch pedal (MT models) or the
brake pedal (CVT models), the engine
can be started regardless of the status
of the push-button ignition switch.
. If the security indicator light illumi-
nates when you attempt to start the
engine but the engine does not start,
press the push-button ignition switch
to switch the power to “ OFF ” and then
try to start the engine again.
. If the engine does not start, press
the push-button ignition switch without
depressing the clutch pedal (MT mod-
els) or the brake pedal (CVT models) to
switch the power to “ OFF ” . Then, while
depressing the clutch pedal (MT mod-
els) or the brake pedal (CVT models)
more forcefully, press the push-button
ignition switch.
. The engine start procedures may
not function depending on the radio
wave conditions around the vehicle. In
such a case, refer to “ Starting engine ”
F 9-17.
. If the vehicle battery is discharged,
the steering cannot be unlocked.7-12

Charge the battery.
. After the engine starts, the engine
speed will be kept high until the engine
has warmed up sufficiently.
1) Operation indicator
2) Push-button ignition switch
When the push-button ignition switch is
pressed while depressing the clutch pedal
(MT models)/brake pedal (CVT models),
the engine will start. The start procedure
of the engine is as follows.
! MT models
1. Carry the access key, and sit in the
driver ’ s seat.
2. Apply the parking brake.
3. Shift the shift lever in neutral.
4. Depress the brake pedal.
5. Depress the clutch pedal until the indicator on the push-button ignition
switch turns green.
6. While depressing the clutch pedal,
press the push-button ignition switch.
NOTE In case the engine does not start by the
normal engine start procedure, move
the shift lever to the neutral position,
and switch the power to “ ACC ” . De-
press the clutch pedal, and press the
push-button ignition switch for at least
15 seconds. The engine may start. Only
use this engine start procedure in case
of emergency.
! CVT models
1. Carry the access key, and sit in the
driver ’ s seat.
2. Apply the parking brake.
3. Shift the select lever in the “ P ” posi-
tion. The engine can also start when the
select lever is in the “ N ” position, however,
for safety reasons, start in the “ P ” position.
4. Depress the brake pedal until the
operation indicator on the push-button
ignition switch turns green. When starting
with the select lever in the “ N ” position, the
indicator does not turn green.
5. While depressing the brake pedal,
press the push-button ignition switch. NOTE . While pressing the select lever but-
ton in, the indicator on the push-button
ignition switch will not turn green even
when the select lever is in the “ P ”
position.
. In case the engine does not start by
the normal engine start procedure,
move the select lever to the “ P ” posi-
tion, and switch the power to “ ACC ” .
Depress the brake pedal, and press the
push-button ignition switch for at least
15 seconds. The engine may start. Only
use this engine start procedure in case
of emergency.
. When the engine is not started, the
brake pedal may feel stiff. In such a
case, depress the brake pedal more
forcefully than usual. Check that the
operation indicator on the push-button
ignition switch turns green, and press
the push-button ignition switch to start
the engine.Starting and operating/Starting and stopping engine (models with push – button start system)
– CONTINUED –7-13

Starting and operating/Remote engine start system (dealer option)
& Stopping engine1. Stop the vehicle completely.
2. Move the select lever to the “ P ”
position (CVT models).
3. Press the push-button ignition switch.
The engine will stop, and the power will be
switched to “ OFF ” .
WARNING. Do not touch the push-button
ignition switch during driving.
When the push-button ignition
switch is operated as follows,
the engine will stop.
– The switch is pressed and held
for 3 seconds or longer.
– The switch is pressed briefly 3
times or more in succession.
When the engine stops, the brake
booster will not function. A great-
er foot pressure will be required
on the brake pedal.
The power steering system will
not operate either. A greater
force will be required to steer,
and it may result in an accident.
. If the engine stops during driving,
do not operate the push-button
ignition switch or open any of the doors until the vehicle is stopped
in a safe location. It is dangerous
because the steering lock may be
activated. Stop the vehicle in a
safe location, and contact a
SUBARU dealer immediately.
CAUTIONFor CVT models:
. Do not stop the engine while the
select lever is in a position other
than the “ P ” position.
. If the engine is stopped while the
select lever is in a position other
than the “ P ” position, the power
will be in “ ACC ” . If the vehicle is
left in this condition, the battery
may be discharged.
NOTE Although you can stop the engine by
operating the push-button ignition
switch, do not stop the engine during
driving except in an emergency.
& When access key does not
operate properly
Refer to “ Access key – if access key does
not operate properly ” F 9-16.Remote engine start system
(dealer option) WARNING. There are some general precau-
tions when starting the engine.
Carefully read the precautions
described in “ General precau-
tions when starting engine ” F 7-
9.
. Do not remote start a vehicle in
an enclosed environment (e.g.
closed garage). Prolonged opera-
tion of a motor vehicle in an
enclosed environment can cause
a harmful build-up of Carbon
Monoxide. Carbon Monoxide is
harmful to your health. Exposure
to high levels of Carbon Monox-
ide can cause headaches, dizzi-
ness or in extreme cases uncon-
sciousness and/or death.
. Before performing any servicing
of the vehicle, temporarily place
the remote engine start system in
service mode to prevent the
system from unexpectedly start-
ing the engine.
The remote engine start system allows7-14

you to start the engine from outside the
vehicle. In addition, the remote engine
start system can activate the heater or air
conditioner, providing you with a comfor-
table cabin upon entry.
NOTE The length of time for which it is
acceptable to allow the engine to
remain idling may be governed by local
laws and regulations. Check the local
rules when using the remote engine
start system. & Models with “ keyless access
with push-button start sys-
tem ”
NOTE For more details, refer to the Owner ’ s
Manual supplement for the remote
engine start system.
Access key
1) Lock button
An access key can be used as the remote
engine start transmitter. Operate the lock
button to start or stop the engine as
follows.
! Before starting the engine
Before using the remote engine start
system to start the engine, confirm the
following conditions. . The select lever is in the “ P ” position.
. All doors are closed.
. The engine hood is closed.
. The push-button ignition switch is in the
“ OFF ” position.
! Starting the engine
To start the engine with remote engine
start system, briefly press the lock button
twice within 2 seconds, then press and
hold the lock button for 3 seconds.
1. Press the lock button briefly. The
hazard warning flashers then flash once.
2. Within 2 seconds, press the lock
button briefly again. The hazard warning
flashers then flash once again.
3. After step 2, immediately press and
hold the lock button. The hazard warning
flashers then flash once.
4. Approximately 3 seconds after step 3,
release the lock button. The engine will
then start successfully.Starting and operating/Remote engine start system (dealer option)
– CONTINUED –7-15

Starting and operating/Remote engine start system (dealer option)
! Stopping the engine
Press and hold the lock button to stop the
engine with remote engine start system.
! Automatic engine shutdown
The remote engine start system will
automatically shut down or will not start
the engine under the following conditions.
. The total run-time has exceeded 20
minutes.
. Any door is opened.
. The select lever is moved to any
position other than “ P ” .
. The engine hood is opened.
. Thepush-buttonignitionswitchis
pressed.
. The brake pedal is depressed.
. The engine speed is 3,000 rpm or
more.
The time setting until the engine auto-
matically stops can be changed. To
change it, please contact your SUBARU
dealer. Note that some settings may
violate state, provincial, or local laws and
regulations. Check the laws in your area to
determine which setting is permitted. & Entering the vehicle while it
is running via remote start 1. Unlock the vehicle doors using the
keyless access function. If the vehicle ’ s
doors are unlocked manually using the
key, the vehicle ’ s alarm system will trigger
(if the alarm system is armed prior to
activating the remote engine start system)
and the engine will turn off. Perform either
of the following procedures to disarm the
alarm system. Refer to “ Alarm system ”
F 2-25.
. Switch the ignition to the “ ACC ” or
“ ON ” state by pressing the push-button
ignition switch once or twice, respec-
tively.
. Press any button on the access key/
transmitter.
2. Enter the vehicle.
3. The engine will shut down when any
door is opened.
4. Press the push-button ignition switch
while depressing the brake pedal to restart
the engine.
& Entering the vehicle follow-
ing remote engine start shut-
down
An alarm trigger may occur if the vehicle is
opened by the remote keyless entry
transmitter within a few seconds immedi- ately following remote engine start shut-
down.
& Pre-heating or pre-cooling
the interior of the vehicle Before exiting the vehicle, set the tem-
perature controls to the desired setting
and operation. After the system starts the
engine, the heater or air conditioning will
activate and heat or cool the interior to
your setting.
& System maintenance For models with “ keyless access with
push-button start system ” :
Perform the procedure described in “ Re-
placing battery of access key ” F 11-50.7-16

The auto mode has 3 modes as follows. Mode Operation
AUTO [+] This mode emphasizes traction
control and strengthens the
limitation of differential action
that is suitable for driving on
slippery roads for vehicle stabi-
lity.
AUTO This mode is suitable for most
driving situations.
AUTO [ − ] This mode is suitable when you
seek quick response from the
steering wheel and smooth
driving.
! Mode setting method
In most situations, it is recommended that
the “ AUTO ” mode is selected.
Push the control switch forward to select the “ AUTO [+] ” mode. After setting the
mode, “ AUTO [+] ” appears.
Pull the control switch rearward to select
the “ AUTO [ − ] ” mode. After setting the
mode, “ AUTO [ − ] ” appears.
When the “ AUTO [+] ” mode is selected,
pull the control switch rearward to change
to the “ AUTO ” mode. When the “ AUTO
[ − ] ” mode is set, push the control switch
forward to change to the “ AUTO ” mode.& 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.Starting and operating/Driver ’ s Control Center Differential (C.DIFF/DCCD) (STI)
– CONTINUED –7-21

– 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 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. 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.
WARNINGDo 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 applied or
when chocks are used in the
wheels. This may cause the
transmission fluid to overheat.
. Never move the vehicle rearwardStarting and operating/Continuously variable transmission
– CONTINUED –7-23