2003 SUBARU IMPREZA WRX engine

Keys and doors
2-15
– CONTINUED –
Arming the system
To arm the system using remote transmitter
1. Close all windows.
2. Remove the key from the ignition switch.
3. Open the doors and get out of the vehicle.
4. Make sure that the engine hood (and the trunk
lid) are locked.
5. Close all doors (and the rear gate on the wagon).
1) Press to Arm the system.
2) Press to Disarm the system.
Security system-indicator light
6. Briefly press the “LOCK/ARM” button (for less
than two seconds). All doors (and the rear gate on
the wagon) will lock, the horn will sound one time,the parking lights will flash one time and the indica-
tor light starts flashing slowly (approximately once
every two seconds).
If any of the doors (or the rear gate) is not fully
closed, the horn sounds three times, the parking
lights flash three times to alert you that the doors (or
the rear gate) are not properly closed. When you
close the door, the system will automatically arm and doors will automatically lock.

Keys and doors
2-16
To arm the system using power door locking switches
1. Close all windows.
2. Remove the key from the ignition switch.
3. Open the doors and get out of the vehicle.
4. Make sure that the engine hood (and the trunk
lid) are locked.
5. Close the doors (and the rear gate on the wagon) but leave only the driver ’s door or the front passen-
ger’ s door open.
6. Push the front side ( “LOCK” side) of the power
door locking switch to set the door locks.
7. Close the door. The horn will sound one time, the parking lights will flash one time and the indicator
light will start flashing slowly (approximately once
every two seconds) to inform you that the system
has armed.
NOTE The system can be armed even if the engine hood and/or the windows are opened. Always
make sure that they are fully closed before arm- ing the system. Disarming the system
Briefly press the “UNLOCK/DISARM” button (for less
than two seconds) on the remote transmitter. The
driver’ s door will unlock, the horn will sound two
times, the parking lights will flash two times and the
indicator light will go off.
To unlock all other doors (and the rear gate on the
wagon), briefly press the “UNLOCK/DISARM” button
a second time.
Emergency disarming
If you cannot disarm the system using the transmit-
ter (i.e. the transmitter is lost, broken or the transmit-
ter battery is too weak), you can disarm the system
without using the transmitter.

3
3-1
– CONTINUED –
Ignition switch 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOCK 3-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACC 3-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON 3-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START 3-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key reminder chime 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key interlock release (AT vehicles only) 3-4 . . . . . .
Hazard warning flasher 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Meters and gauges 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer 3-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer/Trip meter 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer 3-7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel gauge 3-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature gauge 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ambient temperature gauge (if equipped) 3-9 . . . .
Warning and indicator lights 3-10 . . . . . . . . . . . . . . . . . . . .
Seatbelt warning light and chime 3-10 . . . . . . . . . . . . . . .
SRS airbag system warning light 3-11 . . . . . . . . . . . . . . .
CHECK ENGINE warning light/ Malfunction indicator lamp 3-11 . . . . . . . . . . . . . . . . . . . .
Charge warning light 3-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil pressure warning light 3-12 . . . . . . . . . . . . . . . . . . . . . . .
AT OIL TEMPerature warning light (for AT vehicles) 3-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ABS warning light 3-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system warning light 3-14 . . . . . . . . . . . . . . . . . . . . .
Door open warning lights 3-14 . . . . . . . . . . . . . . . . . . . . . . . .
Front-wheel drive warning light (for AT vehicles – if equipped) 3-15 . . . . . . . . . . . . . . . . Shift position indicator (AT vehicles) 3-15
. . . . . . . . . .
Turn signal indicator lights 3-15 . . . . . . . . . . . . . . . . . . . . . .
High beam indicator light 3-15 . . . . . . . . . . . . . . . . . . . . . . . .
Clock 3-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Light control switch 3-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights 3-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High/low beam change (dimmer) 3-17 . . . . . . . . . . . . . . .
Headlight flasher 3-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daytime running light system 3-18 . . . . . . . . . . . . . . . . . . .
Turn signal lever 3-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination brightness control 3-19 . . . . . . . . . . . . . . . .
Parking light switch 3-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog light switch (if equipped) 3-20 . . . . . . . . . . . . . . . . . .
Wiper and washer 3-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield wiper and washer switches 3-22 . . . . . . .
Rear window wiper and washer switch – Wagon 3-24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear window defogger switch 3-25 . . . . . . . . . . . . . . . . . .
Mirrors 3-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside mirror 3-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside mirrors 3-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tilt steering wheel 3-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 3-32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instruments and controls

Instruments and controls
3-3
– CONTINUED –
The key can be turned from “ACC” to “LOCK” only
when the selector lever is in the “P” position.
Manual transmission vehicles
The key can be turned from “ACC” to “LOCK” only
when the key is pushed in while turning it.
WARNING
Never turn the ignition switch to “LOCK”
while the vehicle is being driven or towed be-
cause that will lock the steering wheel, pre-venting steering control. And when the engine is turned off, it takes a much greater effort
than usual to steer.

Instruments and controls
3-4
ACC
In this position the electrical accessories (radio, cig-
arette lighter, etc.) can be used. ON
This is the normal operating position after the engine
is started. START
The engine is started in this position. The starter
cranks the engine to start it. When the key is re-
leased (after the engine has started), the key auto-
matically returns to the “ON” position.
CAUTION
Do not turn the ignition switch to the “START”
position while the engine is running.
Key reminder chime
The reminder chime sounds when the driver ’s door
opens and the key is in the “LOCK” or “ACC” posi-
tions. The chime stops when the key is removed
from the ignition switch.
Key interlock release (AT vehicles only)
If the key can not be turned to the “LOCK” position
even when the selector lever is in the “P” position:
1. Take out the screwdriver from the tool bag.
2. Remove the cover under the steering column us-
ing a phillips screwdriver.

Instruments and controls
3-7
– CONTINUED –
Odometer
The odometer shows the total distance that the ve-
hicle has been driven.
Double trip meter
1) A trip meter 2) B 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 theknob.
Each press of the knob changes the function alter-
nately. A trip meter
B trip meter 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 2 seconds.
CAUTION
To ensure safety, do not attempt to change the
function of the indicator during driving, as an
accident could result.
NOTE If the connection between the combination meter
and battery is broken for any reason such as ve-hicle maintenance or fuse replacement, the data recorded on the trip meter will be lost. Tachometer
The tachometer shows the engine speed in thou-
sands 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 running normally

Instruments and controls
3-8
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, turn- ing or acceleration due to fuel level movement in thetank. NOTE
You will see the
“FUEL DOOR p” sign near the
fuel gauge. This indicates that the fuel filler door (lid) islocated on the right side of the vehicle.
Low fuel warning light
The low fuel warning light comes on when the tankis nearly empty [about 2.3 U.S. gal. (9.0 liters, 1.9
Imp. gal.]. It only operates when the ignition switchis in the “ON” position.

Instruments and controls
3-9
– CONTINUED –
NOTE This light does not go out unless the tank is
replenished up to an internal fuel quantity ofabout 4.0 U.S. gal. (15 liters, 3.3 Imp. gal.). Temperature gauge
1) Normal operating range
The temperature gauge shows engine coolant tem-
perature when the ignition switch is in the “ON” posi-
tion.
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 pos-sible.See
“In case of emergency ” in chapter 9.
Ambient temperature gauge (if equipped)
The ambient temperature gauge shows the ambient
temperature in a range from –22°F to 122 °F ( –30 °C
to 50 °C).
The gauge 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 shutdown. When the actual ambient temperature falls outside