2003 SUBARU IMPREZA battery

Maintenance and service
11-54
1) Stopper
Be sure to position the claws at the end of the metal
support between the stoppers on the rubber as
shown. If the rubber is not retained properly, thewiper blade may scratch the windshield.
6. Install the wiper blade assembly to the wiper
arm. Make sure that it locks in place.
7. Slowly lower the arm in position. Battery
WARNING

Before beginning work on or near any bat-
tery, be sure to extinguish all cigarettes,
matches, and lighters. Never expose a batteryto an open flame or electric sparks. Batteriesgive off a gas which is highly flammable andexplosive. For safety, in case an explosion does occur,
wear eye protection or shield your eyes when
working near any battery. Never lean over a
battery. Do not let battery fluid contact eyes, skin,
fabrics, or paint because battery fluid is a cor- rosive acid. If battery fluid gets on your skin or in your eyes, immediately flush the area
with water thoroughly. Seek medical help im-
mediately if acid has entered the eyes.If battery fluid is accidentally swallowed,
immediately drink a large amount of milk or
water, and seek medical attention immediately. To lessen the risk of sparks, remove rings,
metal watchbands, and other metal jewelry.
Never allow metal tools to contact the positive

Maintenance and service
11-55
– CONTINUED –
battery terminal and anything connected to it WHILE you are at the same time in contactwith any other metallic portion of the vehicle
because a short circuit will result.Keep everyone including children away
from the battery. Charge the battery in a well-ventilated area.
Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California to
cause cancer and reproductive harm.
Wash
hands after handling.
1) Cap
2) Upper level 3) Lower level
It is unnecessary to periodically check the battery
fluid level or periodically refill with distilled water.
However, if the battery fluid level is below the lower
level, remove the cap. Fill to the upper level with dis-
tilled water.
CAUTION
Never use more than 10 amperes when charg- ing the battery because it will shorten battery life.

Specifications
12-3
– CONTINUED –
Engine
Engine model
EJ251
(2.5-liter, SOHC, non-turbo)EJ205
(2.0-liter, DOHC, turbo)
Engine typeHorizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine
Displacement cu in. (cc)150 (2,457)122 (1,994)
Bore × Stroke in. (mm)3.9 × 3.1 (99.5 × 79.0)3.6 × 2.9 (92.0 × 75.0)
Compression ratio10.0 : 18.0 : 1
Firing order1 – 3 – 2 – 4
Electrical system
Battery type and
it (5HR)MT12V-48AH (55D23L)capacity (5HR)ATWith 2.5-liter engine12V-52AH (75D23L)
With 2.0-liter turbo engine12V-52AH (65D23L)
Alternator2.5-liter engine12V – 75A
2.0-liter turbo engine12V – 75A
Spark plugs2.5-liter engineRC10YC4 (Champion)
BKR6E-11 (NGK)
BKR5E-11 (NGK)
2.0-liter turbo enginePFR6G (NGK)
AT : Automatic transmission MT : Manual transmission

Index
14-2
A
ABS (Anti-lock Brake System) 7-23. . . . . . . . . . . . . . . . .
Warning light 3-13, 7-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory power outlet 6-8, 6-11 . . . . . . . . . . . . . . . . .
Accessories 5-2, 11-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air cleaner element 11-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air conditioner operation 4-9 . . . . . . . . . . . . . . . . . . . . . .
Air filtration system 4-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air flow selection 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum wheels 11-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ambient temperature indicator 3-9 . . . . . . . . . . . . . . . .
Antenna system 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-lock Brake System (ABS) 7-23 . . . . . . . . . . . . . . . .
Arming the system 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Armrest 1-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ashtray 6-12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AT OIL TEMPerature warning light 3-13 . . . . . . . . . . . .
Audio set 5-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto-dimming mirror /compass 3-27 . . . . . . . . . . . . . . . .
Automatic/Emergency Locking Retractor
(A/ELR) 1-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 7-14 . . . . . . . . . . . . . . . . . . . . . . . .
Capacities 12-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 11-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selector lever 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift lock release 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature warning light 3-13 . . . . . . . . . . . . . . . . . . B
Battery
11-54
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump starting 9-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement (Remote keyless entry system) 2-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake
Booster 11-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 11-34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pad and lining 11-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pedal 11-37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system 7-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning light 3-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking 7-22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tips 7-22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Breaking-in of new brake pads and linings 11-40
Brake pedal
Free play 11-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reserve distance 11-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Chart 12-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing 11-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CCapacities 12-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo Anchorage hooks 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Area light 6-2, 11-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index
14-7
Spark plugs 11-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote keyless entry system 2-6 . . . . . . . . . . . . . . . . .
Replacement Brake pad and lining 11-39 . . . . . . . . . . . . . . . . . . . . . . . .
Windshield wiper blades 11-50 . . . . . . . . . . . . . . . . . . .
Replacing bulbs 11-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo area light 11-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Doom light 11-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front fog light 11-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front turn signal light 11-64 . . . . . . . . . . . . . . . . . . . . . . . .
Front side marker light 11-69 . . . . . . . . . . . . . . . . . . . . . .
Headlight 11-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High mount stop light 11-74 . . . . . . . . . . . . . . . . . . . . . . .
License plate light 11-72 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Map light 11-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking light 11-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear combination light 11-70 . . . . . . . . . . . . . . . . . . . . . .
Trunk light 11-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing
Lost transmitters (keyless entry system) 2-10 . .
Air cleaner element 11-20 . . . . . . . . . . . . . . . . . . . . . . . . .
Battery (remote keyless entry system) 2-8 . . . . .
Rocking the vehicle 8-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roof rail and crossbar 8-18 . . . . . . . . . . . . . . . . . . . . . . . . .
S Seatbelt 6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance 1-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pretensioners 1-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety tips 1-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning light and chime 1-15, 3-10 . . . . . . . . . . . . . . .
Seatbelts 1-12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Cushion height adjustment (driver ’s seat) 1-5 .
Fabric 10-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater 1-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security system 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selector lever 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift lock release 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift position indicator 3-15 . . . . . . . . . . . . . . . . . . . . . . . . .
Side ventilators 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Snow tires 8-13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sounding a panic alarm 2-8, 2-17 . . . . . . . . . . . . . . . . . . .
Spark plugs 11-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 12-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS airbag (Supplemental Restraint System airbag) 6, 1-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS airbag system warning light 3-11 . . . . . . . . . . . . . .
SRS frontal airbag 1-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS side airbag 1-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting the engine 7-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State emission testing (U.S. only) 7-6 . . . . . . . . . . . . . . . .
Stopping the engine 7-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . .