SUBARU WRX 2018 Owners Manual

(532,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
.Under inflated tire(tread worn on
shoulders)Rolling resistance is high, so fuel con-
sumption is also higher..Over inflated tire(tread worn in the
center)
Ride comfort is poor. Also, the tire magni-
fies the effects of road-surface bumps and
dips, possibly resulting in vehicle damage.
If the tire placard shows tire pressures for
the vehicle when fully loaded, adjust the
tire pressures to the values that match the
loading conditions.
WARNING
Driving at high speeds with exces-
sively low tire pressures can cause
the tires to deform severely and to
rapidly heat up. A sharp increase in
temperature could cause tread se-
paration, and destruction of the
tires. The resulting loss of vehiclecontrol could lead to an accident.
&Wheel balanceEach wheel was correctly balanced when
your vehicle was new, but the wheels will
become unbalanced as the tires become
worn during use. Wheel imbalance causes
the steering wheel to vibrate slightly at
certain vehicle speeds and detracts from
the vehicle’s straight-line stability. It can
also cause steering and suspension sys-
tem problems and abnormal tire wear. If
you suspect that the wheels are not
correctly balanced, have them checked
and adjusted by your SUBARU dealer.
Also have them adjusted after tire repairs
and after tire rotation.
CAUTION
Loss of correct wheel alignment
causes the tires to wear on one side
and reduces the vehicle’s running
stability. Contact your SUBARU
dealer if you notice abnormal tire
wear.
Maintenance and service/Tires and wheels
11-34

(533,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
NOTEThe suspension system is designed to
hold each wheel at a certain alignment
(relative to the other wheels and to the
road) for optimum straight-line stability
and cornering performance.&Wear indicators1) New tread
2) Worn tread
3) Tread wear indicatorEach tire incorporates a tread wear in-
dicator, which becomes visible when the
depth of the tread grooves decreases to
0.063 in (1.6 mm). Replace the tire when
the tread wear indicator appears as a solid
band across the tread.
WARNING
When a tire’s tread wear indicator
becomes visible, the tire is worn
beyond the acceptable limit and you
must replace it immediately. With a
tire in this condition, driving at high
speeds in wet weather can cause the
vehicle to hydroplane. The resulting
loss of vehicle control can lead to an
accident.NOTEFor safety, inspect tire tread regularly
and replace the tires before their tread
wear indicators become visible.
&Rotational direction of tiresExample of rotational direction marked on
the sidewall
1) FrontIf the tires have specific rotational direc-
tion, refer to the arrow marked on the side
wall.
The arrow should be pointing forward
when the wheels are fitted.
–CONTINUED–
Maintenance and service/Tires and wheels
11-35
11

(534,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Tire rotationVehicles equipped with 4 non-unidirec-
tional tires
1) Front
Vehicles equipped with unidirectional
tires
1) FrontTire wear varies from wheel to wheel.
Move the tires to the positions shown in the
illustration each time they are rotated. For
the tire rotation schedule, refer to the
“Warranty and Maintenance Booklet”.
Replace any damaged or unevenly worn
tires at the time of rotation. After tire
rotation, adjust the tires pressures and
make sure the wheel nuts are correctly
tightened.
After driving approximately 600 miles
(1,000 km), check the wheel nuts again
and retighten any nut that has become
loose.
&Tire replacementThe wheels and tires are important and
integral parts of your vehicle’s design; they
cannot be changed arbitrarily. The tires
fitted as standard equipment are optimally
matched to the characteristics of the
vehicle and were selected to give the best
possible combination of running perfor-
mance, ride comfort, and service life. It is
essential for every tire to have a size and
construction matching those shown on the
tire placard and to have a speed symbol
and load index matching those shown on
the tire placard.
Using tires of a non-specified size detracts
from controllability, ride comfort, braking
performance, speedometer accuracy and
odometer accuracy. It also creates incor-
rect body-to-tire clearances and inappro-
priately changes the vehicle’s ground
clearance.
All four tires must be the same in terms of
manufacturer, brand (tread pattern), con-
struction, and size. You are advised to
replace the tires with new ones that are
identical to those fitted as standard equip-
ment.
For safe vehicle operation, SUBARU
recommends replacing all four tires at the
same time.
Maintenance and service/Tires and wheels
11-36

(535,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
WARNING
.When replacing or installing
tire(s), all four tires must be the
same for the following items.
(a) Size
(b) Circumference
(c) Speed symbol
(d) Load index
(e) Construction
(f) Manufacturer
(g) Brand (tread pattern)
(h) Degrees of wear
For items (a) to (d), you must
obey the specification that is
printed on the tire placard. The
tire placard is located on the
driver’s door pillar.
If all four tires are not the same in
items (a) to (h), there is a possi-
bility that it may lead to serious
mechanical damage to the drive
train of your car and affect the
following factors.
—Ride
—Handling
—Braking—Speedometer/Odometer
calibration
—Clearance between the body
and the tires
It also may be dangerous and
lead to loss of vehicle control,
and it can lead to an accident.
.Use only radial tires. Do not use
radial tires together with belted
bias tires and/or bias-ply tires.
Doing so can dangerously re-
duce controllability, resulting in
an accident.
&Wheel replacementWhen replacing wheels due, for example,
to damage, make sure the replacement
wheels match the specifications of the
wheels that are fitted as standard equip-
ment. Replacement wheels are available
from SUBARU dealers.
WARNING
Use only those wheels that are
specified for your vehicle. Wheels
not meeting specifications could
interfere with brake caliper opera-
tion and may cause the tires to rub
against the wheel well housing dur-ing turns. The resulting loss of
vehicle control could lead to an
accident.
NOTEWhen any of the wheels are removed
and replaced for tire rotation or to
change a flat tire, always check the
tightness of the wheel nuts after driving
approximately 600 miles (1,000 km). If
any nut is loose, tighten it to the
specified torque.
Maintenance and service/Tires and wheels
11-37
11

(536,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Alloy wheelsAlloy wheels can be scratched and da-
maged easily. Handle them carefully to
maintain their appearance, performance,
and safety.
.When any of the wheels are removed
and replaced for tire rotation or to change a
flat tire, always check the tightness of the
wheel nuts after driving approximately 600
miles (1,000 km). If any nut is loose,
tighten it to the specified torque.
.Never apply oil to the threaded parts,
wheel nuts, or tapered surface of the
wheel.
.Never let the wheel rub against sharp
protrusions or curbs.
.When wheel nuts, balance weights, or
the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for alloy wheels.
Windshield washer fluid
CAUTION
Never use engine coolant as washer
fluid because it could cause paint
damage.Windshield washer fluid warning in-
dicator
When there is only a small amount of
washer fluid remaining, the windshield
washer fluid warning indicator will illumi-
nate. When this occurs, refill the washer
fluid as follows.
Remove the washer tank filler cap, then
add windshield washer fluid until it reaches
the“FULL”mark on the tank. If windshield
washer fluid is unavailable use clean
water.
In areas where water freezes in winter, use
an anti-freeze type windshield washer
fluid. SUBARU Windshield Washer Fluid
contains 58.5% methyl alcohol and 41.5%
surfactant, by volume. Its freezing tem-
perature varies according to how much it is
diluted, as indicated in the following table.
Maintenance and service/Alloy wheels
11-38

(537,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Washer Fluid
ConcentrationFreezing
Temperature
30%
10.48F(128C)
50%48F(208C)
100%498F(458C)
In order to prevent freezing of washer fluid,
check the freezing temperatures in the
table above when adjusting the fluid
concentration to the outside temperature.
If you fill the reservoir tank with a fluid with
a different concentration from the one
used previously, purge the old fluid from
the piping between the reservoir tank and
washer nozzles by operating the washer
for a certain period of time. Otherwise, if
the concentration of the fluid remaining in
the piping is too low for the outside
temperature, it may freeze and block the
nozzles.
CAUTION
.Adjust the washer fluid concen-
tration appropriately for the out-
side temperature. If the concen-
tration is inappropriate, sprayed
washer fluid may freeze on the
windshield and obstruct your
view, and the fluid may freeze in
the reservoir tank.
.State or local regulations on
volatile organic compounds may
restrict the use of methanol, a
common windshield washer anti-
freeze additive. Use washer fluids
containing non-methanol anti-
freeze agents only if they provide
cold weather protection without
damaging your vehicle’s paint,
wiper blades or washer system.
Replacement of wiper bladesGrease, wax, insects, or other material on
the windshield or the wiper blade results in
jerky wiper operation and streaking on the
glass. If you cannot remove the streaks
after operating the windshield washer or if
the wiper operation is jerky, clean the outer
surface of the windshield and the wiper
blades using a sponge or soft cloth with a
neutral detergent or mild-abrasive cleaner.
After cleaning, rinse the windshield and
wiper blades with clean water. The wind-
shield is clean if beads do not form when
you rinse the windshield with water.
CAUTION
.Do not clean the wiper blades
with gasoline or a solvent, such
as paint thinner or benzine. This
will cause deterioration of the
wiper blades.
.When you are going to raise the
passenger-side wiper arm, first
raise the driver-side wiper arm.
Otherwise, the passenger-side
wiper assembly and driver-side
wiper assembly will touch each
other, possibly resulting in
scratches.
.Return the passenger-side wiper
–CONTINUED–
Maintenance and service/Replacement of wiper blades
11-39
11

(538,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
arm to its original position before
returning the driver-side wiper
arm to its original position. Other-
wise, the passenger-side wiper
assembly and driver-side wiper
assembly will touch each other,
possibly resulting in scratches.
.While removing the wiper blades
from the wiper arms, do not
return the wiper arms to the
original positions. Otherwise,
the windshield surface may be
scratched.
.When returning the raised wiper
arms to the original positions,
carefully return the wiper arms
on the windshield by hand. You
should not return the wiper arms
to the windshield only by the
return spring. Otherwise, the wi-
per arms may be deformed and/or
the windshield surface may be
scratched.
If you cannot eliminate the streaking even
after following this method, replace the
wiper blades using the following proce-
dures.
&Windshield wiper blade as-
sembly1. Raise the wiper arm off the windshield.1) Stopper2. Remove the wiper blade assembly by
holding its pivot area and pushing it in the
direction shown by the arrow while depres-
sing the wiper blade stopper.
3. Install the wiper blade assembly to the
wiper arm. Make sure that it locks in place.
4. Hold the wiper arm by hand and slowly
lower it in position.
&Windshield wiper blade rub-
ber1) Metal support1. Grasp the locked end of the blade
rubber assembly and pull it firmly until the
stoppers on the rubber are free of the
metal support.
Maintenance and service/Replacement of wiper blades
11-40

(539,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
1) Metal spines2. If the new blade rubber is not provided
with two metal spines, remove the metal
spines from the old blade rubber and install
them in the new blade rubber.3. Align the claws of the metal supportwith the grooves in the rubber and slide the
blade rubber assembly into the metal
support until it locks.
1) Stopper4. 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, the wiper blade may
scratch the windshield.
Battery
WARNING
.Before beginning work on or near
any battery, be sure to extinguish
all cigarettes, matches, and light-
ers. Never expose a battery to an
open flame or electric sparks.
Batteries give off a gas which is
highly flammable and explosive.
.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 be-
cause battery fluid is a corrosive
acid. If battery fluid gets on your
skin or in your eyes, immediately
flush the area with water thor-
oughly. Seek medical help imme-
diately 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 im-
mediately.
.To lessen the risk of sparks,
–CONTINUED–
Maintenance and service/Battery
11-41
11

(540,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
remove rings, metal watchbands,
and other metal jewelry. Never
allow metal tools to contact the
positive battery terminal and any-
thing connected to it WHILE you
are at the same time in contact
with any other metallic portion of
the vehicle because a short cir-
cuit will result.
.Keep everyone including children
away from the battery.
.Charge the battery in a well-
ventilated area.
.Battery posts, terminals and re-
lated accessories contain lead
and lead compounds, chemicals
known to the State of California
to cause cancer and reproductive
harm. Batteries also contain
other chemicals known to the
State of California to cause can-
cer.
Wash hands after handling
.
1) Cap
2) Upper level
3) Lower levelIt 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 distilled water.
CAUTION
Never use more than 10 amperes
when charging the battery because
it will shorten battery life.
Fuses
CAUTION
Never replace a fuse with one having
a higher rating or with material other
than a fuse because serious damage
or a fire could result.
The fuses are designed to melt during an
overload to prevent damage to the wiring
harness and electrical equipment. The
fuses are located in two fuse boxes.One is located under the instrument panel
behind the fuse box cover on the driver’s
seat side. To remove the cover, pull it out.
Maintenance and service/Fuses
11-42

(541,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
1) Spare fusesThe other one (main fuse box) is housed in
the engine compartment. Also, the spare
fuses are stored in the fuse box cover.The fuse puller is stored in the main fuse
box in the engine compartment.
1) Good
2) BlownIf any lights, accessories or other electrical
controls do not operate, inspect the corre-
sponding fuse. If a fuse has blown, replace
it.
1. Turn the ignition switch to the“LOCK”/
“OFF”position and turn off all electrical
accessories.
2. Remove the cover.
3. Determine which fuse may be blown.
Look at the back side of each fuse box
cover and refer to“Fuses and circuits”
F12-10.
4. Pull out the fuse with the fuse puller.
5. Inspect the fuse. If it has blown,
replace it with a spare fuse of the same
rating.
6. If the same fuse blows again, this
indicates that its system has a problem.
Contact your SUBARU dealer for repairs.
Maintenance and service/Fuses
11-43
11