2007 SUBARU IMPREZA WRX engine

3-8Instruments and controls
&Fuel gauge
1) Low fuel warning light
The fuel gauge shows the approximate
amount of fuel remaining in the tank.
When the ignition switch is in the “LOCK ”
or “Acc ”position, the fuel gauge shows “E ”
even if the fuel tank contains fuel.
The gauge may move slightly during
braking, turning or acceleration due to fuel
level movement in the tank. NOTE
You will see the
“”sign in the fuel
gauge meter.
This indicates that the fuel filler door
(lid) is located on the right side of thevehicle. ! Low fuel warning light
The low fuel warning light comes on when
the tank is nearly empty [Approximately
2.3 US gal (9.0 liters, 1.9 Imp gal)].
It only operates when the ignition switch is
in the “ON ”position.
NOTE
This light does not go out unless the
tank is replenished up to an internal fuel quantity of approximately 4.0 US
gal (15 liters, 3.3 Imp gal).
CAUTION
Promptly put fuel in the tank when-
ever the low fuel warning light
comes on. Engine misfires as a
result of an empty tank could cause
damage to the engine.
& Temperature gauge
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.
See the “In case of emergency ”in
chapter 9. &
Outside temperature indica- tor
1) U.S.-spec. models
2) Canada-spec. models
The outside temperature indicator shows
the outside temperature in a range from 22 to 122 8F( 30 to 50 8C).
The indicator can give a false reading
under any of the following conditions: . When there is too much sun.
. During idling; while running at low
speeds in a traffic jam; when the engine
is restarted immediately following a shut- down. . When the actual outside temperature
falls outside the specified indicator range. REV indicator light and buz-
zer (WRX-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 REV setting knob.
If you press the trip knob when the ignition
switch is in the
“LOCK ”position, the
outside temperature indicator will show
the engine speed that has already beenset. Instruments and controls
3-9
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3-10Instruments and controls
NOTE
Even if the REV alarm system is not set,
the REV indicator light will come on
whenever the engine speed enters thetachometer ’s red zone.
& Setting the alarm-level en-
gine speed
1. Turn the REV setting knob clockwise
or counterclockwise, then release it and
let it return to its initial position. The buzzer
will sound. The REV alarm system is now
ready to be set.
2. Turn the REV setting knob to select
the desired alarm-level engine speed.
At this time, the outside temperature
indicator will show the engine-speed setting. .
Counterclockwise ( ): Speed setting
changes downward by 100 rpm. . Clockwise (+): Speed setting
changes upward by 100 rpm.
The speed setting will stop changing if
it reaches 0 rpm or the maximum
engine speed.

The alarm-level engine speed can be set
(in 100 rpm steps) within the range from
2,000 rpm to 7,000 rpm.
The indicator shows the setting as follows:
Speed (rpm) Indication 00 0
2,000 20
2,100 21 ––
7,000 70
Approximately 3 seconds after you stop
turning the knob, the REV alarm system
will automatically enter its next setting
mode (step 3 below), in which you can
activate or deactivate the buzzer.
3. Activate or deactivate the buzzer as
desired using the REV setting knob. .Turn the knob clockwise (+) to
activate the buzzer. The indicator willshow “ON ”, and the buzzer will sound three times. With the buzzer activated,
engine-speed warnings are given by
both the REV indicator light and the
buzzer. .
Turn the knob counterclockwise ( )
to deactivate the buzzer. The indicator
will show “– –”, and the buzzer will not
sound. With the buzzer deactivated,
engine-speed warnings are given only
by the REV indicator light.
Approximately 3 seconds after you stop
turning the knob, the buzzer will sound
once to indicate the end of the setting
procedure. The indicator will return to
showing the outside temperature.
Also, the tachometer needle will return to approximately “0 ”.
NOTE . The REV alarm system does not
operate while settings are being en- tered.. The speed-setting mode terminates
if 0 rpm is selected.. The speed-setting mode is canceled
if the ignition switch is turned to OFF or
the vehicle starts moving before the
setting procedure is finished.. Speed setting is impossible when
the vehicle is moving.. The set engine speed may differ

from the engine speed shown by the
tachometer. Use the engine speed
shown by the tachometer as a roughguide. &Deactivating the REV alarm system
To deactivate the REV alarm system ’s
REV indicator light and buzzer functions,
set the alarm-level engine speed to 0
(zero) rpm. Meters and gauges (Except WRX-STI) NOTE
Liquid-crystal displays are used in
some of the meters and gauges in the
combination meter. You will find their
indications hard to see if you wear
polarized glasses. &
Speedometer
The speedometer shows the vehicle speed. & Odometer/Trip meter
1) Trip meter
2) Odometer This meter displays the odometer and two
trip meters. !
Odometer
The odometer shows the total distance
that the vehicle has been driven. ! Double trip meter
The trip meter shows the distance that the
vehicle has been driven since you last set
it to zero.
To change the mode indication, briefly
push the knob.
Each press of the knob changes the
function alternately.
Instruments and controls 3-11
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3-12Instruments and controls
To set the trip meter to zero, select the A
trip or B trip meter by pushing the knob
and keep the knob pushed for more than 2seconds.
CAUTION
To ensure safety, do not attempt to
change the function of the indicator
during driving, as an accident couldresult.
NOTE
If the connection between the combina-
tion meter and battery is broken for any
reason such as vehicle maintenance or
fuse replacement, the data recorded on
the trip meter will be lost. & Tachometer
The tachometer shows the engine speed
in thousands of revolutions per minute.
CAUTION
Do not operate the engine with the
pointer of the tachometer in the red
zone. In this range, fuel injection will
be cut by the engine control module
to protect the engine from overrev-
ving. The engine will resume run-
ning normally after the engine speed is reduced below the red zone.
& Fuel gauge
1) Low fuel warning light
The fuel gauge shows the approximate
amount of fuel remaining in the tank.
The gauge does not return to “E ” even
though the ignition switch is in the “Acc ”or
“ LOCK ”position.
The gauge may move slightly during
braking, turning or acceleration due to fuel
level movement in the tank. NOTE
You will see the
“FUEL DOOR”
sign in the fuel gauge.
This indicates that the fuel filler door
(lid) is located on the right side of thevehicle. ! Low fuel warning light
The low fuel warning light comes on when
the tank is nearly empty [approximately
2.3 US gal (9.0 liters, 1.9 Imp gal]. It only
operates when the ignition switch is in the“ ON ”position.
NOTE
This light does not go out unless the
tank is replenished up to an internal

fuel quantity of approximately 4.0 US
gal (15 liters, 3.3 Imp gal).
CAUTION
(Turbo model only)
Promptly put fuel in the tank when-
ever the low fuel warning light
comes on. Engine misfires as a
result of an empty tank could cause
damage to the engine.
& Temperature gauge
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. See “In case of emergency ”in
chapter 9. &
Outside temperature indica- tor
1) U.S.-spec. models
2) Canada-spec. models
The outside temperature indicator shows
the outside temperature in a range from 22 to 122 8F( 30 to 50 8C).
The indicator can give a false reading
under any of the following conditions: . When there is too much sun.
. During idling; while running at low
speeds in a traffic jam; when the engine
is restarted immediately following a shut- down. . When the actual outside temperature
falls outside the specified indicator range. Instruments and controls
3-13

3-14Instruments and controls
Warning and indicator lights
Several of the warning and indicator lights
come on momentarily and then go out
when the ignition switch is initially turned
to the“ON ”position. This permits check-
ing the operation of the bulbs.
Apply the parking brake and turn the
ignition switch to the “ON ”position. The
following lights come on: . Seatbelt warning light
. SRS airbag system warning light
. Front passenger ’s frontal airbag ON
indicator light. Front passenger ’s frontal airbag OFF
indicator light. CHECK ENGINE warning light/Mal-
function indicator lamp. Charge warning light
. Oil pressure warning light
. AT OIL temperature warning light (AT
vehicles). ABS warning light
. Brake system warning light
. All-Wheel Drive warning light (AWD AT
vehicles). Cruise control indicator light
. Cruise control set indicator light
If any lights fail to come on, it indicates a
burned-out bulb or a malfunction of the corresponding system.
Consult your authorized SUBARU dealer
for repair. &
Seatbelt warning light
and chime
Your vehicle is equipped with a seatbelt
warning device at the driver ’s seat, as
required by current safety standards.
There is a seatbelt warning light in the
combination meter.
If the driver has not yet fastened the
seatbelt when the ignition switch is turned
to the “ON ”position, the seatbelt warning
light will flash for 6 seconds, to warn that
the seatbelt is unfastened. If the driver ’s
seatbelt is not fastened, a chime will also
sound simultaneously.
If the driver ’s seatbelt is still not fastened 6
seconds later, the warning light will remain
lit for 15 seconds. If the driver ’s seatbelt is
still not fastened even 15 seconds later
(21 seconds after turning ON the ignition
switch), the warning lights will alternate
between flashing and steady illumination
at 15-second intervals, and the chime will
sound while the warning light is flashing.
Alternate flashing and steady illumination
of the warning lights and sounding of the
chime will continue until the driver fastens
the seatbelt. NOTE .
If the driver unfastens the seatbelt
after fastening, the seatbelt warning
device operates as follows according
to the vehicle speed.
.At speeds lower than approxi-
mately 9 mph (15 km/h)
The warning light will alternate
between flashing and steady illumi-
nation at 15-second intervals. The
chime will not sound. . At speeds higher than approxi-
mately 9 mph (15 km/h)
The warning light will alternate
between flashing and steady illumi-
nation at 15-second intervals and
the chime will sound while the
warning light is flashing.
. It is possible to cancel the warning
operation that follows the 6-second
warning after turning ON the ignition
switch. When the ignition switch is
turned ON next time, however, the
complete sequence of the warning
operation resumes. For further details
about canceling the warning operation,
please contact your SUBARU dealer. & SRS airbag system
warning light
When the ignition switch is turned to the

3-16Instruments and controls
&CHECK ENGINE warn-
ing light/Malfunction in-
dicator lamp
CAUTION
If the CHECK ENGINE light comes
on while you are driving, have your
vehicle checked/repaired by your
SUBARU dealer as soon as possi-
ble. Continued vehicle operation
without having the emission control
system checked and repaired as
necessary could cause serious da-
mage, which may not be covered by
your vehicle ’s warranty.
If this light comes on steadily or blinks
while the engine is running, it may indicate
that there is a problem or potential
problem somewhere in the emission con-
trol system. ! If the light comes on steadily:
If the light comes on steadily while driving
or does not go out after the engine starts,
an emission control system malfunction
has been detected.
You should have your vehicle checked by
an authorized SUBARU dealer immedi-
ately. NOTE
This light also comes on 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 coming on
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 go out, 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.. Stop towing a trailer as soon as
possible. The CHECK ENGINE warning light may
stop blinking and come on steadily after
several driving trips. You should have your
vehicle checked by an authorized
SUBARU dealer immediately. &
Charge warning light
If this light comes on when the engine is
running, it may indicate that the charging
system is not working properly.
If the light comes on while driving or does
not go out 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 on, contact
your nearest SUBARU dealer immedi-
ately. &Oil pressure warning light
If this light comes on 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 comes on while driving or does
not go out 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 on,