overheating SUBARU IMPREZA 2011 4.G Owners Manual

2
Chapter 4: Climate control
This chapter informs you how to operate
the climate control.
Chapter 5: Audio
This chapter informs you how to operate
your audio system.
Chapter 6: Interior equipment
This chapter informs you how to operate
interior equipment.
Chapter 7: Starting and operating
This chapter informs you how to start and
operate your SUBARU.
Chapter 8: Driving tips
This chapter informs you how to drive your
SUBARU in various conditions and ex-
plains some safety tips on driving.
Chapter 9: In case of emergency
This chapter informs you what to do if you
have a problem while driving, such as a
flat tire or engine overheating.
Chapter 10: Appearance care
This chapter informs you how to keep your
SUBARU looking good.
Chapter 11: Maintenance and service
This chapter informs you when you need
to take your SUBARU to the dealer for
scheduled maintenance and informs you
how to keep your SUBARU running
properly.Chapter 12: Specifications
This chapter informs you about dimen-
sions and capacities of your SUBARU.
Chapter 13: Consumer information and
Reporting safety defects
This chapter informs you about Uniform
tire quality grading standards and Report-
ing safety defects.
Chapter 14: Index
This is an alphabetical listing of all that
’sin
this manual. You can use it to quickly find
something you want to read.
& Safety warnings
You will find a number of WARNINGs,
CAUTIONs and NOTEs in this manual.
These safety warnings alert you to poten-
tial hazards that could result in injury to
you or others.
Please read these safety warnings as well
as all other portions of this manual care-
fully in order to gain a better understand-
ing of how to use your SUBARU vehicle
safely.
WARNING
A WARNING indicates a situation in
which serious injury or death could
result if the warning is ignored.
CAUTION
A CAUTION indicates a situation in
which injury or damage to your
vehicle, or both, could result if the
caution is ignored.
NOTE
A NOTE gives information or sugges-
tions how to make better use of yourvehicle. & Safety symbol
You will find a circle with a slash through it
in this manual. This symbol means “Do
not ”, “Do not do this ”,or “Do not let this
happen ”, depending upon the context.

&Temperature gauge (turbo models)
1) Normal operating range
The temperature gauge shows engine
coolant temperature when the ignition
switch is in the “ON ”position.
The coolant temperature will vary in
accordance with the outside temperature
and driving conditions.
We recommend that you drive moderately
until the pointer of the temperature gauge
reaches near the middle of the range.
Engine operation is optimum with the
engine coolant at this temperature range
and high revving operation when the
engine is not warmed up enough should
be avoided.
CAUTION
If the pointer exceeds the normal
operating range, safely stop the
vehicle as soon as possible.
Refer to “Engine overheating ”F9-
13. REV indicator light and buz-
zer (STI)
The REV alarm system issues a warning
using the REV indicator light (and a
buzzer if additionally selected) when the
engine speed reaches a level previously
set using the trip knob.
If you press the trip knob, the odometer/
trip meter will show the engine speed that
has already been set.Instruments and controls
3-11
– CONTINUED –

NOTE
This light also illuminates when the fuel
filler cap is not tightened until it clicks.
If you have recently refueled your vehicle,
the cause of the CHECK ENGINE warning
light/malfunction indicator lamp illuminat-
ing could be a loose or missing fuel filler
cap. Remove the cap and retighten it until
it clicks. Make sure nothing is interfering
with the sealing of the cap. Tightening the
cap will not make the CHECK ENGINE
warning light turn off immediately. It may
take several driving trips. If the light does
not turn off, take your vehicle to your
authorized SUBARU dealer immediately. !If the light is blinking
If the light is blinking while driving, an
engine misfire condition has been de-
tected which may damage the emission
control system.
To prevent serious damage to the emis-
sion control system, you should do thefollowing. . Reduce vehicle speed.
. Avoid hard acceleration.
. Avoid steep uphill grades.
. Reduce the amount of cargo, if possi-
ble. The CHECK ENGINE warning light may
stop blinking and illuminate steadily after
several driving trips. You should have your
vehicle checked by an authorized
SUBARU dealer immediately.
& Coolant temperature
low indicator light (non-
turbo models)/Coolant
temperature high warn-
ing light (non-turbo models)
CAUTION
. After turning the ignition switch
to the “ON ”position, if this
indicator light/warning light be-
haves in any of the following
ways, the electrical system may
be malfunctioning. Contact your
SUBARU dealer immediately for
an inspection. – It remains blinking in RED.
– It remains illuminated in RED
for more than 2 seconds.
– It remains blinking in RED and
BLUE alternately.
. While driving, if this indicator
light/warning light behaves in
any of the following ways, take the specified appropriate mea-
sure listed below. –
Blinking or illuminated in
RED:
Safely stop the vehicle as
soon as possible, and refer
to the emergency steps to
take in the case of engine
overheating. After that, have
the system checked by your
nearest SUBARU dealer. Referto “Engine overheating ”F9-
13.
– Blinking in RED and BLUE
alternately:
The electrical system may be
malfunctioning. Contact your
SUBARU dealer for an inspec-tion.
This coolant temperature low indicator
light/coolant temperature high warning
light has the following three functions. . Illumination in BLUEindicates insuffi-
cient warming up of the engine. Blinking in REDindicates that the
engine is close to overheating. Illumination in REDindicates overheat-
ing condition of the engine
For a system check, this indicator light/
warning light illuminates in REDfor
Instruments and controls
3-17
– CONTINUED –

3-18Instruments and controls
approximately 2 seconds when the igni-
tion switch is turned to the “ON ”position.
After that, this indicator light/warning light
changes to BLUEand maintains illumina-
tion in BLUE. This BLUE illuminated light
turns off when the engine is warmed up
sufficiently.
If the engine coolant temperature in-
creases over the specified range, the
indicator light/warning light blinks inRED . At this time, the engine is close to
overheating.
If the engine coolant temperature in-
creases further, the indicator light/warning
light illuminates in REDcontinuously. At
this time, the engine may be overheating.
When the indicator light/warning light
blinks in REDor illuminates in RED, safely
stop the vehicle as soon as possible, and
refer to the emergency steps to take in the
case of engine overheating. Refer to“ Engine overheating ”F 9-13. After that,
have the system checked by your nearest
SUBARU dealer.
Also, if the indicator light/warning light
often blinks in RED, the electrical system
may be malfunctioning. Contact your
SUBARU dealer for an inspection. NOTE
If the engine is restarted after a certain
driving condition, this indicator light/
warning light may illuminate in RED.
However, this is not a malfunction if the
indicator light/warning light turns off
after a short time. &
Charge warning light
If this light illuminates when the engine is
running, it may indicate that the charging
system is not working properly.
If the light illuminates while driving or does
not turn off after the engine starts, stop the
engine at the first safe opportunity and
check the alternator belt. If the belt is
loose, broken or if the belt is in good
condition but the light remains illuminated,
contact your nearest SUBARU dealer
immediately. &Oil pressure warning light
If this light illuminates when the engine is
running, it may indicate that the engine oil
pressure is low and the lubricating system
is not working properly.
If the light illuminates while driving or does
not turn off after the engine starts, stop the
engine at the first safe opportunity and check the engine oil level. If the oil level is
low, add oil immediately. If the engine oil is
at the proper level but the light remains
illuminated, contact your nearest
SUBARU dealer immediately.
For details about checking the engine oil
level or adding the engine oil, refer to“
Engine oil ”F 11-10.
CAUTION
Do not operate the engine with the
oil pressure warning light illumi-
nated. This may cause serious en-
gine damage.
& AT OIL TEMP warning
light (AT models)
If this light illuminates when the engine is
running, it may indicate that the automatic
transmission fluid temperature is too hot.
If the light illuminates while driving, im-
mediately stop the vehicle in a safe place
and let the engine idle until the warning
light turns off. !Automatic transmission control
system warning
If the “AT OIL TEMP ”warning light flashes
after the engine starts, it may indicate that
the automatic transmission control system

3-36Instruments and controls
Front fog light switch (if equipped)
The front fog lights operate only when the
light switch is in the “”position.
However, the front fog lights turn off when
the headlights are switched to high beam.
To turn on the front fog lights, turn the front
fog light switch on the turn signal lever
upward to the “
”position. To turn off the
front fog lights, turn the switch back down
to the “OFF ”position.
Turbo models
Non-turbo models
The indicator light on the combination
meter will illuminate when the front fog
lights are illuminated. Wiper and washer
WARNING
In freezing weather, do not use the
windshield washer until the wind-
shield is sufficiently warmed by the
defroster.
Otherwise the washer fluid can
freeze on the windshield, blocking
your view.
CAUTION
. Do not operate the washer con-
tinuously for more than 10 sec-
onds, or when the washer fluid
tank is empty. This may cause
overheating of the washer motor.
Check the washer fluid level
frequently, such as at fuel stops.
. Do not operate the wipers when
the windshield or rear window is
dry. This may scratch the glass,
damage the wiper blades and
cause the wiper motor to burn
out. Before operating the wiper
on a dry windshield or rear
window, always use the wind-
shield washer.

tight for the accessory power
outlet, this can result in a poor
contact or cause the plug to get
stuck. Only use plugs that fit
properly.
. Use of an electric appliance in the
accessory power outlet for a long
period of time while the engine is
not running can cause batterydischarge.
. Before driving your vehicle, make
sure that the plug and the cord
on your electrical appliance will
not interfere with your shifting
gears and operating the accel-
erator and brake pedals. If they
do, do not use the electrical
appliance while driving. &
Use with a cigarette lighter (if equipped)
To use the accessory power outlet below
the climate control as a cigarette lighter
socket, purchase the cigarette lighter plug,
which is an optional accessory. A cigarette
lighter plug is available from your
SUBARU dealer.
The cigarette lighter operates only when
the ignition switch is in the “ON ”or “Acc ”
position.
To use the cigarette lighter, push in the
knob and wait a few moments. It will
automatically spring up when ready foruse.
WARNING
To avoid being burned, never grasp
the lighter by the end with the
heating element. Doing so could
result in injury and could also
damage the heating element.
CAUTION
. Do not hold the lighter pushed in,
because it will overheat.
. The electrical power socket lo-
cated in the center console is
originally designed to use a gen- uine SUBARU cigarette lighter
plug. Do not use a non-genuine
cigarette lighter plug in the sock-
et. Doing so may cause a short-
circuit and overheating, resulting
in a fire.
. If the socket is ever used for a
plug-in accessory such as a cell
phone, that may damage the
portion of the socket ’s internal
mechanism that causes a cigar-
ette lighter plug to “pop out ”
after its lighter element is heated.
Therefore, do not place a cigar-
ette lighter plug in a socket that
has been used, even once, to
power a plug-in accessory. Doing
so may cause the plug to stick
and overheat, creating a potential
fire hazard. Interior equipment
6-9

Power steering
The power steering 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. 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 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 diag-
onally 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 thevehicle. ! 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, result-
ing 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 dis-
tance will increase. Starting and operating
7-31
– CONTINUED –

If you park your vehicle in case of anemergency ........................................................ 9-2
Temporary spare tire ........................................... 9-2
Precautions for AWD models with automatic transmission ..................................................... 9-3
Maintenance tools ............................................... 9-4
Tool bag. ............................................................. 9-4
Under the rear floor ............................................. 9-5
Flat tires ............................................................... 9-6
Changing a flat tire .............................................. 9-6
Tire pressure monitoring system (TPMS) (U.S.-spec. models) .......................................... 9-10
Jump starting ..................................................... 9-11
How to jump start ............................................... 9-11 Engine overheating
........................................... 9-13
If steam is coming from the engine compartment ................................................... 9-13
If no steam is coming from the engine compartment ................................................... 9-13
Towing ................................................................ 9-14
Towing and tie-down hooks. ............................... 9-14
Using a flat-bed truck. ........................................ 9-17
Towing with all wheels on the ground ................. 9-17
Rear gate –if the rear gate cannot be
unlocked .......................................................... 9-18
Moonroof –if moonroof cannot be closed ...... 9-19
In case of emergency
9

Engine overheating
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has fully cooled down.
When the engine is hot, the coolant
is under pressure. Removing the
cap while the engine is still hot
could release a spray of boiling hot
coolant, which could burn you very
seriously.
If the engine overheats, safely pull off the
road and stop the vehicle in a safe place. & If steam is coming from the
engine compartment
Turn off the engine and get everyone
away from the vehicle until it cools down. & If no steam is coming from
the engine compartment
NOTE
For details about how to check the
coolant level or how to add coolant,
refer to “Engine coolant ”F 11-14.
1. Keep the engine running at idlingspeed. 2. Open the hood to ventilate the engine
compartment. Refer to
“Engine hood ”
F 11-5.
Confirm that the cooling fan is turning. If
the fan is not turning, immediately turn off
the engine and contact your authorized
dealer for repair.
3. After the engine coolant temperature
has dropped, turn off the engine.
If any of the following conditions occur,
turn off the engine. .The temperature gauge stays in the
overheated zone (turbo models). Referto “Temperature gauge (turbo models) ”
F 3-11.
. The coolant temperature high warn-
ing light remains illuminated (non-
turbo models). Refer to “Coolant tem-
perature low indicator light (non-turbo
models)/Coolant temperature high
warning light (non-turbo models) ”F 3-
17.
4. After the engine has fully cooled down,
check the coolant level in the reservetank.
If the coolant level is below the “LOW ”
mark, add coolant up to the “FULL ”mark.
5. If there is no coolant in the reserve
tank, add coolant to the reserve tank.
Then remove the radiator cap and fill the
radiator with coolant. If you remove the radiator cap from a hot
radiator, first wrap a thick cloth around the
radiator cap, then turn the cap counter-
clockwise slowly without pressing down
until it stops. Release the pressure from
the radiator. After the pressure has been
fully released, remove the cap by pressing
down and turning it.
In case of emergency
9-13

Exhaust gas (carbon monoxide)............................. 6, 8-2
Hood .................................................................... 11-5
Oil............................................................... 11-10, 12-5 Overheating .......................................................... 9-13
Starting ................................................................... 7-9
Stopping ............................................................... 7-10
Exterior care .............................................................. 10-2
F
Flat tires ..................................................................... 9-6
Floor mat .................................................................. 6-11
Fluid level Automatic transmission .......................................... 11-22
Brake .................................................................. 11-25
Clutch .................................................................. 11-26
Power steering ..................................................... 11-24
Fog light
Bulb .................................................................... 11-50
Indicator light ......................................................... 3-27
Switch .................................................................. 3-36
Folding mirror switch .................................................. 3-48
Front Differential gear oil ........................................ 11-23, 12-8
Fog light ...................................................... 3-36, 11-50
Fog light indicator light ............................................ 3-27
Seatbelt pretensioners ............................................ 1-19
Turn signal light .................................................... 11-50
Front seats .................................................................. 1-2
Active head restraint ................................................. 1-5
Forward and backward adjustment ............................. 1-3
Head restraint adjustment ......................................... 1-4 Reclining
................................................................ 1-3
Seat cushion height adjustment ... .............................. 1-4
Fuel ........................................................................... 7-3
Consumption indicator ............................................. 3-29
Economy hints ........................................................ 8-2
Filler lid and cap ...................................................... 7-4
Gauge ................................................................... 3-10
Requirements ................................................. 7-3, 12-4
Fuses ..................................................................... 11-45
Main fuse ............................................................ 11-46
Fuses and circuits .................................................... 12-12
G
GAWR (Gross Axle Weight Rating) .. ............................. 8-13
Glove box ................................................................... 6-5
GVWR (Gross Vehicle Weight Rating) ........................... 8-13
H
Hands-free system. ..................................................... 5-46
Hazard warning flasher .......................................... 3-5, 9-2
Head restraint adjustment
Front seat ............................................................... 1-4
Rear seat ............................................................... 1-8
Headlight Beam leveler. ......................................................... 3-34
Bulb replacement ................................................. 11-47
Bulb replacing ...................................................... 11-47
Bulb wattage ........................................................ 12-16
Control switch ........................................................ 3-31
Flasher .................................................................. 3-32
Indicator light ......................................................... 3-27 Index
14-5