2003 SUBARU IMPREZA WRX brakes

Instruments and controls
3-14
The warning light comes on right after the
engine is started but goes out immediately, remaining off. The warning light remains on after the engine
has been started, but it goes out when the
vehicle speed reaches about 8 mph (12 km/h). The warning light comes on during driving, but
it goes out immediately and remains off.
When driving with an insufficient battery voltage
such as when the engine is jump started, the ABS
warning light may come on. This is due to the low
battery voltage and does not indicate a malfunction.
When the battery becomes fully charged, the lightwill go out. Brake system warning light
WARNING
Driving with the brake system warning light
on is dangerous. This indicates your brake
system may not be working properly. If thelight remains on, have the brakes inspected
by a SUBARU dealer immediately. If at all in doubt about whether the brakes are operating properly, do not drive the ve-
hicle. Have your vehicle towed to the nearest
SUBARU dealer for repair.
This light has the following two functions: Parking brake warning
The light comes on with the parking brake applied while the ignition switch is in the “ON” position. It
goes out when the parking brake is fully released.
Brake fluid level warning
This light comes on when the brake fluid level has
dropped to near the “MIN” level of the brake fluid
reservoir with the ignition switch in the “ON” position
and with the parking brake fully released.
If the brake system warning light should come on
while driving (with the parking brake fully releasedand with the ignition switch positioned in “ON”), it
could be an indication of leaking of brake fluid or
worn brake pads. Have your vehicle checked by a
SUBARU dealer immediately. Door open warning lights
The door open warning light comes on if any door or
the rear gate is not fully closed.
(U.S.)
(Canada)

Starting and operating
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2.5 liter models (non-turbo)
mph (km/h)
RSTS, OUTBACK
1st29 (46)28 (45)
2nd48 (77)47 (75)
3rd68 (110)66 (106)
2.0 liter models (turbo)mph (km/h)
WRX
1st35 (56)
2nd61 (98)
3rd87 (140)
WARNING
When shifting down a gear, ensure that the
vehicle is not travelling at a speed exceedingthe Maximum Allowable Speed for the gearwhich is about to be selected. Failure to observe this precaution can lead to engine
over-revving and this in turn can result inengine damage.In addition, sudden application of engine
brakes when the vehicle is travelling on a slip-pery surface can lead to wheel locking; as a
consequence, control of the vehicle may be lost and the risk of an accident increased.
Driving tips
Do not drive with your foot resting on the clutch ped- al and do not use the clutch to hold your vehicle at a standstill on an upgrade. Either of those actions maycause clutch damage.
Do not drive with your hand resting on the shift lever.This may cause wear on the transmission compo-nents.
When it is necessary to reduce vehicle speed due to
slow traffic, turning corners, or driving up steep hills,
downshift to a lower gear before the engine starts to

Starting and operating
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labor.
On steep downgrades, downshift the transmission
to 4th, 3rd or 2nd gear as necessary; this helps to
maintain a safe speed and to extend brake pad life.
In this way, the engine provides a braking effect. Re-
member, if you “ride” (over use) the brakes while de-
scending a hill, they may overheat and not work
properly.
The engine may, on rare occasions, knock when the
vehicle rapidly accelerates or rapidly pulls away
from a standstill. This phenomenon does not indi-
cate a fault. Automatic transmission
The automatic transmission is electronically con-
trolled with 4-forward speeds and 1-reverse speed. NOTE
Immediately after a disconnected battery is re-
connected or ATF (automatic transmission fluid) is replaced, you may feel that the automatic
transmission operation is somewhat unusual.
This results from erasure or invalidation of data
the on-board computer has collected and storedin memory to allow the transmission to shift at the most appropriate times for the current condi- tion of your vehicle. Optimized shifting will be re-stored as the vehicle continues to be driven for awhile.
WARNING
Do not shift from the
“P” or “N” position into
the “D”, “3”, “2”, “1” or “R” position while de-
pressing the accelerator pedal. This may
cause the vehicle to jump forward or back- ward.

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NOTE
In order to prevent over-revving during decelera-
tion of the vehicle, the transmission will remain
in the current gear if the speed of the vehicle isin excess of the Maximum Allowable Speed for
the gear to which the selector lever has beenmoved.
WARNING
When shifting down a gear, ensure that the
vehicle is not travelling at a speed exceeding the Maximum Allowable Speed for the gear which is about to be selected. Failure toobserve this precaution can lead to engine
over-revving and this in turn can result inengine damage.In addition, sudden application of engine
brakes when the vehicle is travelling on a slip- pery surface can lead to wheel locking; as a
consequence, control of the vehicle may belost and the risk of an accident increased.
Driving tips
Always apply the foot or parking brake when the
vehicle is stopped in the “D”, “3”, “2”, “1” or “R”
position. Always set the parking brake when parking your
vehicle. Do not hold the vehicle with only the trans-mission. Do not keep the vehicle in a stationary position on
an uphill grade by using the “D”, “3”, “2”, or “1”
position. Use the brake instead.
The engine may, on rare occasions, knock when the
vehicle rapidly accelerates or rapidly pulls away
from a standstill. This phenomenon does not indi-
cate a fault.
Shift lock release
If the selector lever does not move from the “P” posi-
tion with the brake pedal depressed and the ignitionswitch in the “ON” position, perform the following
steps:
To override the shift lock:
1. Set the parking brake and stop the engine.
2. Take out the screwdriver from the tool bag.
3. Remove the cover by prying on the edge with the
regular screwdriver.

Starting and operating
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Braking Braking tips
WARNING
Never rest your foot on the brake pedal while driving. This can cause dangerous overheat- ing of the brakes and needless wear on thebrake 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 dis-
tance will be longer. To dry the brakes, drive the ve-
hicle at a safe speed while lightly depressing thebrake pedal to heat up the brakes.
Use of engine braking
Remember to make use of engine braking in addi-
tion to foot braking. When descending a grade, if
only the foot brake is used, the brakes may start
working improperly because of brake fluid overheat-
ing, caused by overheated brake pads. To help pre-
vent 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 controlof 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 diagonally across the vehicle. If
one circuit of the brake system should fail, the other
half of the system still works. If one circuit fails, thebrake 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 the vehicle.
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,
resulting 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 push the pedal

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much harder than normal and the braking distance
will increase. Disc brake pad wear warning indica- tors
The disc brake pad wear warning indicators on the
disc brakes give a warning noise when the brake
pads are worn.
If a squeaking or scraping noise is heard from the disc brakes while braking, immediately have your
vehicle checked by your SUBARU dealer. ABS (Anti-lock Brake System)
The ABS system prevents the lock-up of wheels which may occur during sudden braking or braking
on slippery road surfaces. This helps prevent the
loss of steering control and directional stability caused by wheel lock-up.
When the ABS system is operating, you may hear a
chattering noise or feel a slight vibration in the brake
pedal. This is normal when the ABS operates. The ABS system will not operate when the vehicle
speed is below approximately 6 mph (10 km/h).
WARNING
Always use the utmost care in driving
– over-
confidence because you are driving with an
ABS equipped vehicle could easily lead to aserious accident.

Driving tips
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aid kit and portable phone or citizens band radio. Drive carefully. Do not take unnecessary risks by
driving in dangerous areas or over rough terrain. Slow down and employ extra caution at all times.
When driving off-road, you will not have the benefit
of marked traffic lanes, banked curves, traffic signs and the like. Do not drive across steep slopes. Instead, drive
either straight up or straight down the slopes. A ve-
hicle can much more easily tip over sideways than it
can end over end. Avoid driving straight up or down
slopes that are too steep. Avoid sharp turning maneuvers, especially at
higher speeds. Do not grip the inside or spokes of the steering
wheel. A bad bump could jerk the wheel and injureyour hands. Instead drive with your fingers andthumbs on the outside of the rim. If driving through water, such as when crossing
shallow streams, first check the depth of the water
and the bottom of the stream bed for firmness and
ensure that the bed of the stream is flat. Drive slowly
and completely through the stream. The water
should be shallow enough that it does not reach the
vehicle’ s undercarriage. Water entering the engine
air intake or the exhaust pipe or water splashing
onto electrical parts may damage your vehicle and may cause it to stall. Never attempt to drive through
rushing water; regardless of its depth, it can wash
away the ground from under your tires, resulting in
possible loss of traction and even vehicle rollover.
Always check your brakes for effectiveness im-
mediately after driving in sand, mud or water. Do
this by driving slowly and stepping on the brake
pedal. Repeat that process several times to dry outthe brake discs and brake pads. Do not drive or park over or near flammable mate-
rials such as dry grass or fallen leaves, as they may
burn easily. The exhaust system is very hot while the
engine is running and right after the engine stops.
This could create a fire hazard. After driving through tall grass, mud, rock, sand,
rivers, etc., check that there is no grass, bush, pa-
per, rags, stones, sand, etc. adhering to or trapped
on the underbody. Clear off any such matter from
the underbody. If the vehicle is used with these ma-
terials trapped or adhering to the underbody, a
mechanical breakdown or fire could occur. Secure all cargo carried inside the vehicle and
make certain that it is not piled higher than the seat-
backs. During sudden stops or jolts, unsecured car-
go could be thrown around in the vehicle and cause
injury. Do not pile heavy loads on the roof. Thoseloads raise the vehicle ’s center of gravity and make

Driving tips
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cold weather. Heavy summer oil will cause harder
starting.
Keep the door locks from freezing by squirting themwith deicer or glycerin.
Forcing a frozen door open may damage or sepa-
rate the rubber weather strips around the door. If the
door is frozen, use hot water to melt the ice, and af-
terwards thoroughly wipe the water away. Use a windshield washer fluid that contains an anti-
freeze solution. Do not use engine antifreeze or oth-
er substitutes because they may damage the paint of the vehicle.
Before driving your vehicle
Before entering the vehicle, remove any snow or ice
from your shoes because that could make the ped-
als slippery and dangerous.
While warming up the vehicle before driving, check that the accelerator pedal, brake pedal, and all oth-
er controls operate smoothly. Clear away ice and snow that has accumulated un-
der the fenders to avoid making steering difficult.
During severe winter driving, stop when and where it is safe to do so and check under the fenders peri-
odically.
Parking in cold weather
Do not use the parking brake when parking for long
periods in cold weather since it could freeze in that
position. Instead, observe the following:
1. Place the shift lever in “1” or “R” for manual trans-
mission vehicles, and in “P” for automatic transmis-
sion vehicles.
2. Use tire stops under the tires to prevent the ve-
hicle from moving.
When the vehicle is parked in snow or when it
snows, raise the wiper blades off the glass to pre-vent damage to them.
When the vehicle has been left parked after use on
roads heavily covered with snow, or has been left
parked during a snowstorm, icing may develop onthe brake system, which could cause poor braking
action. Check for snow or ice buildup on the sus-
pension, disc brakes and brake hoses underneath the vehicle.
If there is caked snow or ice, remove it, being care-ful not to damage the disc brakes and brake hoses
and ABS harness.