2003 SUBARU IMPREZA WRX automatic transmission fluid

Maintenance and service
11-27
– CONTINUED –
SAE viscosity No. and Applicable Temperature Automatic transmission fluid
Checking the fluid level
The automatic transmission fluid expands largely as
its temperature rises; the fluid level differs according
to fluid temperature. Therefore, there are two differ-ent scales for checking the level of hot fluid andcold fluid on the dipstick.
Though the fluid level can be checked without
warming up the fluid on the “COLD” range, we rec-
ommend checking the fluid level when the fluid is at
operating temperature.
Checking the fluid level when the fluid is hot
Check the fluid level monthly.
1. Drive the vehicle several miles to raise the tem-
perature of the transmission fluid up to normal oper-
ating temperature; 158 to 176 °F (70 to 80 °C) is nor-
mal.
2. Park the vehicle on a level surface and set theparking brake.
3. First shift the selector lever in each position. Then shift it in the “P” position, and run the engine at id-
ling speed.

Maintenance and service
11-28
1) Yellow handleA) HOT range
B) COLD range1) Upper level
2) Lower level
4. Pull out the dipstick and check the fluid level on the gauge. If it is below the lower level on the “HOT”
range, add the recommended automatic transmis- sion fluid up to the upper level.
Checking the fluid level when the fluid is cold
When the fluid level has to be checked without time
to warm up the automatic transmission, check tosee that the fluid level is between the lower leveland upper level on the “COLD” range. If it is below
that range, add fluid up to the upper level. Be care-
ful not to overfill.

Maintenance and service
11-29
– CONTINUED –
Recommended fluid
“ Dexron III ” Type Automatic Transmission FluidFront differential gear oil
(AT vehicles) Checking the oil level
1) Yellow handle
Check the differential oil level monthly.
1. Park the vehicle on a level surface and stop the engine.
2. Pull out the dipstick, wipe it clean, and insert itagain.

Maintenance and service
11-33
– CONTINUED –
1) Specified range
2. Check the fluid level of the reservoir tank.
When the fluid is hot after the vehicle has been run:Check that the oil level is between “HOT MIN ” and
“ HOT MAX ” on the surface of the reservoir tank.
When the fluid is cool before the vehicle is run: Check that the oil level is between “COLD MIN ” and
“ COLD MAX ” on the surface of the reservoir tank.
3. If the fluid level is lower than the applicable “MIN”
line, add the recommended fluid as necessary to bring the level between the “MIN” and “MAX” line.
If the fluid level is extreme low, it may indicate pos-
sible leakage. Consult your SUBARU dealer for in- spection.
WARNING
Be careful not to burn yourself because the fluid may be hot.
CAUTION

When power steering fluid is being added,
use only clean fluid, and be careful not to al- low any dirt into the tank. And never use dif-
ferent brands together. Avoid spilling fluid when adding it in the
tank.
Recommended fluid
“ Dexron III ” Type Automatic Transmission Fluid

Specifications
12-4
Capacities
Fuel tank
15.9 US gal (60 liters, 13.2 Imp gal)
Engine oil2.5-liter engine model4.2 US qt (4.0 liters, 3.5 Imp qt)
2.0-liter turbo engine model4.8 US qt (4.5 liters, 4.0 Imp qt)
Transmission oil (MT)3.7 US qt (3.5 liters, 3.1 Imp qt)
Transmission oil (AT)10.0 US qt (9.5 liters, 8.4 Imp qt)
Power steering gear fluid0.7 US qt (0.7 liter, 0.6 Imp qt)
Engine coolant2.5-liter engine modelMT7.4 US qt (7.0 liters, 6.2 Imp qt)
AT7.3 US qt (6.9 liters, 6.1 Imp qt)
2.0-liter turbo engine modelMT8.1 US qt (7.7 liters, 6.8 Imp qt)
AT8.0 US qt (7.6 liters, 6.7 Imp qt)
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
14-4
Door locks 2-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door open warning lights 3-14 . . . . . . . . . . . . . . . . . . . . . .
Drive belts 11-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving
Drinking 9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drugs 9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign countries 8-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mobile phone 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pets 11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tired or sleepy 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tips 7-13, 8-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Snowy and icy roads 8-12 . . . . . . . . . . . . . . . . . . . . . . . .
E
Electrical system 12-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency Locking Retractor (ELR) 1-14 . . . . . . . . . .
Engine Compartment overview 11-8 . . . . . . . . . . . . . . . . . . . . .
Coolant 11-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust gas (Carbon monoxide) 8, 8-3 . . . . . . . . . . .
Hood 11-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil 11-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheating 9-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting 7-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stopping 7-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior care 10-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F
Flat tires
9-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor mat 6-13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid level Automatic transmission 11-27 . . . . . . . . . . . . . . . . . . . . .
Brake 11-34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch 11-35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power steering 11-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog light switch 3-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Folding down the rear seat 1-11 . . . . . . . . . . . . . . . . . . . .
Fore and aft adjustment 1-3 . . . . . . . . . . . . . . . . . . . . . . . .
Front
Differential gear oil 11-29 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog light 11-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seatbelt pretensioners 1-27 . . . . . . . . . . . . . . . . . . . . .
Seats 1-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side marker light 11-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn signal light and parking light 11-64 . . . . . . . . . .
Front-wheel drive warning light 3-15 . . . . . . . . . . . . . . .
Fuel 7-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Economy hints 8-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filler lid and cap 7-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gauge 3-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements 7-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 11-56
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses and circuits 12-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index
14-6
Manual transmission oil 11-25. . . . . . . . . . . . . . . . . . . . . . . .
Map light 11-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum load limits 8-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Meters and gauges 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirrors 3-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N
New vehicle break-in driving –
the first 1,000 miles (1,600 km) 8-2 . . . . . . . . . . . .
O
Odometer/Trip meter 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off road driving 8-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil pressure warning light 3-12 . . . . . . . . . . . . . . . . . . . . . .
Oil filter 11-11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil level Engine 11-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual transmission 11-25 . . . . . . . . . . . . . . . . . . . . . . . .
Rear differential 11-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside mirrors 3-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheating engine 9-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PParking Brake 7-26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake stroke 11-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Light switch 3-20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tips 7-26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Door locking switches 2-5 . . . . . . . . . . . . . . . . . . . . . .
Steering 7-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering fluid 11-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RRear Combination lights 11-70 . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential gear oil 11-31 . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate 2-30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seats 1-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viscous limited slip differential (LSD) 7-21 . . . . .
Rear seat
Folding down (Wagon) 1-11 . . . . . . . . . . . . . . . . . . . . . .
Rear window
Defogger switch 3-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and washer switch 3-24 . . . . . . . . . . . . . . . . . .
Reclining the seatback 1-4 . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended
Automatic transmission fluid 11-29 . . . . . . . . . . . . . . .
Brake fluid 11-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch fluid 11-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power steering fluid 11-33 . . . . . . . . . . . . . . . . . . . . . . . . .
Grade and viscosity 11-15, 11-26, 11-30, 11-32