2016 SUBARU IMPREZA check engine

CAUTION
Trapping 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)
CAUTION
Do 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.
& Starting engine
! General precautions when starting
engine
WARNING
.Never start the engine from out-
side the vehicle (except when
using the remote engine start
system). 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 procedure.
(1) Turn the ignition switch to the
“LOCK” /“OFF ”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”/
“ OFF ”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 ”/“OFF ”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.
7-10

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 procedure.
(1) Turn the ignition switch to the
“LOCK”/ “OFF”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”/
“OFF ”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
theignitionswitchagaintothe
“LOCK”/ “OFF”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.
CAUTION
If 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”/“OFF ”posi-
tion 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

1) Operation indicator
2) Push-button ignition switch
When the push-button ignition switch is
pressed while depressing the brake pedal,
the engine will start. The starting proce-
dure for the engine is as follows.
1. Carry the access key, and sit in the
driver’s seat.
2. Apply the parking brake.
3. Shift the select lever into the “P ”
position. 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.
& Stopping engine
1. Stop the vehicle completely.
2. Move the select lever to the “P ”
position.
3. Press the push-button ignition switch.
The engine will stop, and the power will be
switched 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
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)
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 place, and contact a
SUBARU dealer immediately.
CAUTION
.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 9-18.
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 allows 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 bound by local
laws and regulations. Check the local
rules when using the remote engine
start system.
7-14

Starting and operating/Remote engine start system (dealer option)
&Models without “keyless ac-
cess with push-button start
system ”
Remote engine starter transceiver (fob)
1) Fob button
!Starting the engine
NOTE
All vehicle doors (including rear gate/
trunk lid) and the engine hood must be
closed prior to activating the remote
engine start system. Any open entry
point will prevent starting or cause the
engine to stop.
The remote engine start system is acti-
vated by pressing the fob button on your
remote engine starter transceiver (fob)
twice within 3 seconds. If the fob is within operating range of the system and the
start request is received, the following
phenomena will occur.
.
The fob flashes and beeps once.
. The horn sounds once.
. The side marker lights, tail lights, and
parking lights flash once.
If the fob is not within range (the user is
too far away from the vehicle), the fob will
indicate two long flashes without beeping.
The system will check certain safety
preconditions before starting, and if all
conditions are met, the engine will start
within 5 seconds. After the engine starts,
the following phenomena will occur.
. The fob flashes and beeps twice.
. The horn sounds once.
. The side marker lights, tail lights, and
parking lights flash once.
While the engine is idling via the remote
engine start system, the following phe-
nomena will occur.
. The side marker lights, tail lights, and
parking lights remain illuminated.
. The fob button flashes once every 3
seconds.
. The power windows are disabled.
If the engine turns over but does not start
(or starts and stalls) the remote engine start system will power off and then
attempt to start the engine 3 additional
times. The system will not attempt to
restart the engine if it determines a vehicle
malfunction is preventing starting. If the
engine does not start after 3 additional
attempts, the remote engine start request
will be aborted.
!
Stopping the engine
Press and hold the fob button for at least 2
seconds to stop the engine. The fob will
flash and beep three times, indicating the
engine has stopped. If the stop request is
not received (for example, if the user is too
far away from the vehicle), the fob will
continue to flash once every 3 seconds.
The system will automatically stop the
engine after 15 minutes.
! Remote start safety features
For safety and security reasons, the
remote engine start system will prevent
starting (or stop the engine if running) and
sound the horn twice if any of the following
conditions is detected. In addition, the fob
will flash and beep 3 times.
. The brake pedal is depressed
. A key is in the ignition switch
. The engine hood is open
. The remote start system “Service
mode ”is engaged
. The engine idle speed exceeds 3,500
7-16

Starting and operating/ABS (Anti–lock Brake System)
cate any malfunctions, and the brake
assist system is operating properly.
. You might feel that the brake pedal
is applied by lighter force and gener-
ates 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.
If a squeaking or scraping noise is heard
from the disc brakes while braking, im-
mediately have your vehicle checked by
your SUBARU dealer.
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
driving –overconfidence because
you are driving a vehicle with the
ABS could easily lead to a serious
accident.
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 deep newly fallen snow,
stopping distances may be long-
er 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 tire chains are installed,
stopping distances may be long-
er for a vehicle with the ABS than
one without. Be sure to reduce
your speed and maintain a safe
distance from the vehicle in front.
. 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.
& 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
7-32

Starting and operating/Vehicle Dynamics Control system
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
during 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 ”F 11-16.
. 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
properly. If the light remains
illuminated, have the brakes in-
spected by a SUBARU dealer
immediately.
. If at all in doubt about whether
the brakes are operating prop-
erly, do not drive the vehicle.
Have your vehicle towed to the
nearest SUBARU dealer for re-
pair.
Vehicle Dynamics Control
system
& Safety precautions
WARNING
Always use the utmost care in
driving –overconfidence because
you are driving a vehicle with the
Vehicle Dynamics Control system
could easily lead to a serious acci-
dent.
CAUTION
. Even if your vehicle is equipped
with Vehicle Dynamics Control
system, winter tires should be
used when driving on snow-cov-
ered or icy roads; in addition,
vehicle speed should be reduced
considerably. Simply having a
Vehicle Dynamics Control sys-
tem does not guarantee that the
vehicle will be able to avoid
accidents in any situation.
. Activation of the Vehicle Dy-
namics Control system is an
indication that the road being
travelled on has a slippery sur-
7-34