maintenance SUBARU WRX 2016 Owner's Manual

Starting and operating/Remote engine start system (dealer option)
! Stopping the engine
Press and hold the lock button to stop the
engine with remote engine start system.
! Automatic engine shutdown
The remote engine start system will
automatically shut down or will not start
the engine under the following conditions.
. The total run-time has exceeded 20
minutes.
. Any door is opened.
. The select lever is moved to any
position other than “ P ” .
. The engine hood is opened.
. Thepush-buttonignitionswitchis
pressed.
. The brake pedal is depressed.
. The engine speed is 3,000 rpm or
more.
The time setting until the engine auto-
matically stops can be changed. To
change it, please contact your SUBARU
dealer. Note that some settings may
violate state, provincial, or local laws and
regulations. Check the laws in your area to
determine which setting is permitted. & Entering the vehicle while it
is running via remote start 1. Unlock the vehicle doors using the
keyless access function. If the vehicle ’ s
doors are unlocked manually using the
key, the vehicle ’ s alarm system will trigger
(if the alarm system is armed prior to
activating the remote engine start system)
and the engine will turn off. Perform either
of the following procedures to disarm the
alarm system. Refer to “ Alarm system ”
F 2-25.
. Switch the ignition to the “ ACC ” or
“ ON ” state by pressing the push-button
ignition switch once or twice, respec-
tively.
. Press any button on the access key/
transmitter.
2. Enter the vehicle.
3. The engine will shut down when any
door is opened.
4. Press the push-button ignition switch
while depressing the brake pedal to restart
the engine.
& Entering the vehicle follow-
ing remote engine start shut-
down
An alarm trigger may occur if the vehicle is
opened by the remote keyless entry
transmitter within a few seconds immedi- ately following remote engine start shut-
down.
& Pre-heating or pre-cooling
the interior of the vehicle Before exiting the vehicle, set the tem-
perature controls to the desired setting
and operation. After the system starts the
engine, the heater or air conditioning will
activate and heat or cool the interior to
your setting.
& System maintenance For models with “ keyless access with
push-button start system ” :
Perform the procedure described in “ Re-
placing battery of access key ” F 11-50.7-16

Driving tips/Periodic inspections
operates at very high tempera-
tures.
. Keep everyone and flammable
materials away from the exhaust
pipe while the engine is running.
The exhaust gas is very hot.
Periodic inspections To keep your vehicle in the best condition
at all times, always have the recom-
mended maintenance services listed in
the maintenance schedule in the “ War-
ranty and Maintenance Booklet ” per-
formed at the specified time or mileage
intervals.
Driving in foreign countries When planning to use your vehicle in
another country:
. Confirm the availability of the correct
fuel. Refer to “ Fuel requirements ” F 7-3.
. Comply with all regulations and re-
quirements of each country.
8-4

Driving tips/Driving precaution
conditions than a two wheel drive vehicle.
There is little difference in handling,
however, during extremely sharp turns or
sudden braking. Therefore, when driving
down a slope or turning corners, be sure
to reduce your speed and maintain an
ample distance from other vehicles.
. Always check the cold tire pressure
before starting to drive. The recom-
mended tire pressure is provided on the
tire placard, which is located under the
door latch on the driver ’ s side.
. Frequent driving of an AWD vehicle
under hard-driving conditions such as
steep hills or dusty roads will necessitate
more frequent replacement of the follow-
ing items than that specified in the
“ Warranty and Maintenance Booklet ” .
– Engine oil
– Brake fluid
– Rear differential gear oil
– Manual transmission oil (MT mod-
els)
– Continuously variable transmission
fluid (CVT models)
– Front differential gear oil (CVT
models)
. There are some precautions that you
must observe when towing your vehicle.
For detailed information, refer to “ Towing ”
F 9-12. Driving precaution 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. Winter driving & Operation during cold
weather Carry some emergency equipment, such
as a window scraper, a bag of sand,
flares, a small shovel and jumper cables.
Check the battery and cables. Cold
temperatures reduce battery capacity.
The battery must be in good condition to
provide enough power for cold winter
starts.
It normally takes longer to start the engine
in very cold weather conditions. Use an
engine oil of a proper grade and viscosity
for cold weather. Using heavy summer oil
will make it harder to start the engine.
Keep the door locks from freezing by
squirting them with deicer or glycerin.
Forcing a frozen door open may damage
or separate the rubber weather strips
around the door. If the door is frozen,
use hot water to melt the ice, and after-
wards thoroughly wipe the water away.
Use a windshield washer fluid that con-
tains an antifreeze solution. Do not use
engine antifreeze or other substitutes
because they may damage the paint of
the vehicle.8-6

If you park your vehicle in case of an
emergency ........................................................ 9-2
Temporary spare tire ........................................... 9-2
Maintenance tools ............................................... 9-3
Flat tires ............................................................... 9-4Changing a flat tire .............................................. 9-4
Tire pressure monitoring system (TPMS)
(U.S.-spec. models) ........................................... 9-8
Jump starting ...................................................... 9-9How to jump start ................................................ 9-9
Engine overheating ............................................ 9-11If steam is coming from the engine
compartment .................................................... 9-11
If no steam is coming from the engine
compartment .................................................... 9-11 Towing ................................................................ 9-12 Towing and tie-down hooks. ............................... 9-12
Using a flat-bed truck. ........................................ 9-14
Towing with all wheels on the ground ................. 9-15
Electronic parking brake – if the electronic
parking brake cannot be released
(models with electronic parking brake
system) ............................................................ 9-16
Access key – if access key does not
operate properly ............................................. 9-16Locking and unlocking ....................................... 9-16
Switching power ................................................ 9-16
Starting engine .................................................. 9-17
Moonroof (if equipped) – if the moonroof
does not close ................................................ 9-18
If your vehicle is involved in an accident ........ 9-18In case of emergency
9

The temporary spare tire is smaller and
lighter than a conventional tire and is
designed for emergency use only. Re-
move the temporary spare tire and re-
install the conventional tire as soon as
possible because the spare tire is de-
signed only for temporary use.
Check the inflation pressure of the tem-
porary spare tire periodically to keep the
tire ready for use. The correct pressure is
as follows.
Mexico models: 33 psi (230 kPa, 2.3
kgf/cm 2
)
Other models: 60 psi (420 kPa, 4.2
kgf/cm 2
)
When using the temporary spare tire, note
the following.
. Do not exceed 50 mph (80 km/h).
. Do not put a tire chain on the temporary
spare tire. Because of the smaller tire size,
a tire chain will not fit properly.
. Do not use two or more temporary
spare tires at the same time.
. Do not drive over obstacles. This tire
has a smaller diameter, so road clearance
is reduced. 1) Tread wear indicator bar
2) Indicator location mark
. When the wear indicator appears on
the tread, replace the tire.
. The temporary spare tire must be used
only on a rear wheel. If a front wheel tire
gets punctured, replace the wheel with a
rear wheel and install the temporary spare
tire in place of the removed rear wheel.
. Always set the driver ’ s control center
differential to the manual mode and adjust
the initial LSD torque to the minimum. Maintenance tools Your vehicle is equipped with the following
maintenance tools.
. Jack
. Jack handle
. Screwdriver
. Towing hook (eye bolt)
. Wheel nut wrench In case of emergency/Maintenance tools
– CONTINUED –9-3

. Always turn off the engine before
raising the flat tire off the ground
using the jack. Never swing or
push the vehicle supported with
the jack. The jack can come out
of the jacking point due to a jolt
and this can result in a severe
accident.
1. Park on a hard, level surface, when-
ever possible, then stop the engine.
2. Set the parking brake securely and
shift the shift lever in reverse (MT models)
or the select lever to the “ P ” (Park)
position (CVT models).
3. Turn on the hazard warning flasher
and have everyone get out of the vehicle.
4. Put wheel blocks at the front and rear
of the tire diagonally opposite the flat tire. 5. Take out the jack, jack handle and
wheel nut wrench.
The tools and the spare tire are stored
under the floor of the trunk. Refer to
“ Maintenance tools ” F 9-3.
NOTE Make sure that the jack is well lubri-
cated before using it.
6. Take out the tool bucket and turn the
attaching bolt counterclockwise, then take
the spare tire out.
NOTE If the spare tire provided in your vehicle
is a temporary spare tire, carefully read
“ Temporary spare tire ” F 9-2 and
strictly follow the instructions. 7. Loosen the wheel nuts using the wheel
nut wrench but do not remove the nuts.
Jack-up points
8. Place the jack under the side sill at the
front or rear jack-up point closest to the flat
tire. In case of emergency/Flat tires
– CONTINUED –9-5

Appearance care/Corrosion protection
Corrosion protection Your SUBARU has been designed and
built to resist corrosion. Special materials
and protective finishes have been used on
most parts of the vehicle to help maintain
fine appearance, strength, and reliable
operation.
& Most common causes of
corrosionThe most common causes of corrosion
are:
. The accumulation of moisture retaining
dirt and debris in body panel sections,
cavities, and other areas.
. Damage to paint and other protective
coatings caused by gravel and stone
chips or minor accidents.
Corrosion is accelerated on the vehicle
when:
. It is exposed to road salt or dust control
chemicals, or used in coastal areas where
there is more salt in the air, or in areas
where there is considerable industrial
pollution.
. It is driven in areas of high humidity,
especially when temperatures range just
above freezing.
. Dampness in certain parts of the vehicle remains for a long time, even
though other parts of the vehicle may be
dry.
. High temperatures will cause corrosion
to parts of the vehicle which cannot dry
quickly due to lack of proper ventilation.
& To help prevent corrosion Wash the vehicle regularly to prevent
corrosion of the body and suspension
components. Also, wash the vehicle
promptly after driving on any of the
following surfaces.
. roads that have been salted to prevent
them from freezing in winter
. mud, sand, or gravel
. coastal roads
After the winter has ended, it is recom-
mended that the underbody be given a
very thorough washing.
Before the beginning of winter, check the
condition of underbody components, such
as the exhaust system, fuel and brake
lines, brake cables, suspension, steering
system, floor pan, and fenders. If any of
them are found to be rusted, they should
be given an appropriate rust prevention
treatment or should be replaced. Contact
your SUBARU dealer to perform this kind
of maintenance and treatment if you need assistance.
Repair chips and scratches in the paint as
soon as you find them.
Check the interior of the vehicle for water
and dirt accumulation under the floor mats
because that could cause corrosion.
Occasionally check under the mats to
make sure the area is dry.
Keep your garage dry. Do not park your
vehicle in a damp, poorly ventilated
garage. In such a garage, corrosion can
be caused by dampness. If you wash the
vehicle in the garage or put the vehicle
into the garage when wet or covered with
snow, that can cause dampness.
If your vehicle is operated in cold weather
and/or in areas where road salts and other
corrosive materials are used, the door
hinges and locks, and hood latch should
be inspected and lubricated periodically.10-4

Maintenance schedule ....................................... 11-3
Maintenance precautions ................................... 11-3Before checking or servicing in the engine
compartment .................................................... 11-4
When checking or servicing in the engine
compartment .................................................... 11-5
When checking or servicing in the engine
compartment while the engine is running .......... 11-5
Maintenance tips ................................................ 11-6Removing and reinstalling clips .......................... 11-6
Engine hood ....................................................... 11-9
Engine compartment overview ........................ 11-11STI................................................................... 11-11
Except STI ....................................................... 11-12
Engine oil .......................................................... 11-13Engine oil consumption .................................... 11-13
Checking the oil level ....................................... 11-13
Changing the oil and oil filter ............................ 11-15
Recommended grade and viscosity .................. 11-16
Synthetic oil ..................................................... 11-16
Cooling system ................................................ 11-17Cooling fan, hose and connections ................... 11-17
Engine coolant ................................................. 11-18
Air cleaner element .......................................... 11-19
Replacing the air cleaner element ..................... 11-19
Spark plugs ...................................................... 11-21
Recommended spark plugs .............................. 11-21
Drive belts ........................................................ 11-22
Manual transmission oil .................................. 11-23
Recommended grade and viscosity .................. 11-23 Continuously variable transmission fluid ...... 11-23
Front differential gear oil (CVT models) and
rear differential gear oil ................................ 11-23Recommended grade and viscosity .................. 11-23
Power steering fluid (STI) ............................... 11-24Checking the fluid level .................................... 11-24
Recommended fluid ......................................... 11-24
Brake fluid ........................................................ 11-25Checking the fluid level .................................... 11-25
Recommended brake fluid ............................... 11-25
Clutch fluid (MT models) ................................. 11-26Checking the fluid level .................................... 11-26
Recommended clutch fluid ............................... 11-26
Brake booster .................................................. 11-27
Brake pedal ...................................................... 11-27Checking the brake pedal free play .................. 11-27
Checking the brake pedal reserve distance ....... 1 1-28
Clutch pedal (MT models) ............................... 11-28Checking the clutch function ............................ 11-28
Checking the clutch pedal free play .................. 11-28
Hill start assist system .................................... 11-29
Replacement of brake pad and lining ............ 11-29Breaking-in of new brake pads (models with
electronic parking brake system) .................... 11-29
Breaking-in of new brake pads and linings
(models without electronic parking brake
system) ......................................................... 11-30
Parking brake stroke (models without
electronic parking brake system) ................ 11-30Maintenance and service
11

Maintenance and service
Tires and wheels .............................................. 11-31Types of tires ................................................... 11-31
Tire pressure monitoring system (TPMS) (if
equipped) ....................................................... 11-31
Tire inspection ................................................. 11-32
Tire pressures and wear ................................... 11-33
Wheel balance .................................................. 11-35
Wear indicators ................................................ 11-35
Tire rotation direction mark .............................. 11-36
Tire rotation ..................................................... 11-36
Tire replacement .............................................. 11-36
Wheel replacement ........................................... 11-37
Aluminum wheels ............................................. 11-38
Windshield washer fluid .................................. 11-38
Replacement of wiper blades .......................... 11-39Windshield wiper blade assembly ..................... 11-40
Windshield wiper blade rubber ......................... 11-40 Battery .............................................................. 11-41
Fuses ................................................................ 11-42
Installation of accessories .............................. 11-44
Replacing bulbs ............................................... 11-44Headlights (models with LED headlights) .......... 11-44
High beam headlight ........................................ 11-44
Low beam headlight (models without LED
headlights), front side marker light (if
equipped), parking light (models without LED
headlights) and front turn signal light ............. 11-46
Front fog light (if equipped) .............................. 11-47
Rear combination lights ................................... 11-48
License plate light ........................................... 11-49
Other bulbs ..................................................... 11-49
Replacing battery ............................................. 11-50Replacing battery of access key ....................... 11-50
Replacing transmitter battery ........................... 11-51

Maintenance schedule The scheduled maintenance items re-
quired to be serviced at regular intervals
are shown in the “ Warranty and Main-
tenance Booklet ” .
For details of your maintenance schedule,
read the separate “ Warranty and Main-
tenance Booklet ” .
NOTE For models with a multi function dis-
play, you can set a reminder to be
displayed when a scheduled mainte-
nance item is almost due. For details,
refer to “ Maintenance settings ” F 3-79.Maintenance precautions When maintenance and service are re-
quired, it is recommended that all work be
done by an authorized SUBARU dealer.
If you perform maintenance and service
by yourself, you should familiarize yourself
with the information provided in this
section on general maintenance and
service for your SUBARU.
Incorrect or incomplete service could
cause improper or unsafe vehicle opera-
tion. Any problems caused by improper
maintenance and service performed by
you are not eligible for warranty coverage.
WARNING
. Testing of an All-Wheel Drive
model must NEVER be per-
formed on a single two-wheel
dynamometer or similar appara-
tus. Attempting to do so will
result in transmission damage
and in uncontrolled vehicle
movement and may cause an
accident or injuries to persons
nearby.
. Always select a safe area when
performing maintenance on your
vehicle. . Always be very careful to avoid
injury when working on the vehi-
cle. Remember that some of the
materials in the vehicle may be
hazardous if improperly used or
handled, for example, battery
acid.
. Your vehicle should only be ser-
viced by persons fully competent
to do so. Serious personal injury
may result to persons not experi-
enced in servicing vehicles.
. Always use the proper tools and
make certain that they are well
maintained.
. Never get under the vehicle sup-
ported only by a jack. Always use
safety stands to support the
vehicle.
. Never keep the engine running in
a poorly ventilated area, such as
a garage or other closed areas.
. Do not smoke or allow open
flames around the fuel or battery.
This will cause a fire.
. Because the fuel system is under
pressure, replacement of the fuel
filter should be performed only
by your SUBARU dealer.
. Wear adequate eye protection toMaintenance and service/Maintenance schedule
– CONTINUED –11-3