ECU SUBARU WRX 2016 Repair Manual

3. Screw the towing hook into the thread
hole until its thread can no longer be seen.
4. Tighten the towing hook securely
using the wheel nut wrench.
After towing, remove the towing hook from the vehicle and stow it in the tool bucket.
Fit the towing hook cover on the bumper.
WARNING. Do not use the towing hook
except when towing your vehicle.
. Be sure to remove the towing
hook after towing. Leaving the
towing hook mounted on the
vehicle could interfere with prop-
er operation of the SRS airbag
system in a frontal collision.
Rear towing hook:
1. Take the towing hook, screwdriver and
wheel nut wrench out of the tool bucket.
2. Pry off the cover on the rear bumper
using a screwdriver, and you will find a threaded hole for attaching the towing
hook.
3. Screw the towing hook into the thread
hole until its thread can no longer be seen.
4. Tighten the towing hook securely
using the wheel nut wrench. In case of emergency/Towing
– CONTINUED –9-13

position for CVT models. Shift the shift
lever into the “ 1st ” position for MT models.
2. Apply the parking brake firmly.
3. Secure the vehicle onto the carrier
properly with safety chains. Each safety
chain should be equally tightened and
care must be taken not to pull the chains
so tightly that the suspension bottoms out.
CAUTIONIf your vehicle has a front under-
spoiler and rear underspoiler (both
optional), be careful not to scrape
them when placing the vehicle on
the carrier and when removing the
vehicle from the carrier. & Towing with all wheels on the
ground
1. Release the parking brake and put the
transmission in the “ N ” /neutral position.
2. The ignition switch should be in the
“ ON ” position while the vehicle is being
towed.
3. Take up slack in the towline slowly to
prevent damage to the vehicle.
WARNING
. Never turn the ignition switch to
the “ LOCK ” / “ OFF ” position while
the vehicle is being towed be-
cause the steering wheel and the
direction of the wheels will be
locked. . Remember that the brake booster
and power steering do not func-
tion when the engine is not
running. Because the engine is
turned off, it will take greater
effort to operate the brake pedal
and steering wheel.
CAUTION. If transmission failure occurs,
transport your vehicle on a flat-
bed truck.
. For CVT models, the traveling
speed must be limited to less
than 20 mph (30 km/h) and the
traveling distance to less than 31
miles (50 km). For greater speeds
and distances, transport your
vehicle on a flat-bed truck. In case of emergency/Towing
9-15

Engine hood To open the hood:
1. If the wiper blades are lifted off the
windshield, return them to their original
position.
2. Pull the hood release knob under the
instrument panel. 3. Release the secondary hood release
by moving the lever between the front
grille and the hood toward the left.
4. Lift up the hood.
To close the hood:
1. Lower the hood to a height of approxi-
mately 11.8 in (30 cm) above its closed
position and then let it drop.
2. After closing the hood, be sure the
hood is securely locked.
If this does not close the hood, release it
from a slightly higher position. Do not push
the hood forcibly to close it. It could
deform the metal. WARNINGAlways check that the hood is
properly locked before you start
driving. If it is not, it might fly open
while the vehicle is moving and
block your view, which may cause
an accident and serious bodily in-
jury.
CAUTION. When you open the engine hood,
do not stand the wiper blades up.
Furthermore, while the hood is
open, do not operate the wind-
shield wipers. Doing so could
result in damage to the engine
hood and wiper blades.
. Be extremely careful not to catch
fingers or other objects when
closing the engine hood.
. Do not push the hood forcibly to
close it. It could deform the
metal.
. Be extremely careful opening the
engine hood when the wind is
strong. The engine hood could
close suddenly, possibly causing
injuries from slamming.
. Do not install accessories other Maintenance and service/Engine hood
– CONTINUED –11-9

Maintenance and service/Engine oil
Except STI
4. Drain out the engine oil by removing
the drain plug while the engine is still
warm. The used oil should be drained into
an appropriate container and disposed of
properly.
WARNING
Be careful not to burn yourself with
hot engine oil.
5. Wipe the seating surface of the drain
plug with a clean cloth and tighten it
securely with a new sealing washer after
the oil has completely drained out.
CAUTION
Thoroughly wipe off any engine oil that has spilled over the exhaust
pipe and/or under-cover. If spilled oil
is not promptly wiped up, the oil
could cause a fire.
6. Pour engine oil through the filler neck.
For the oil capacity (guideline), refer to
“ Engine oil ” F 12-4.
The oil quantity indicated above is only
guideline.
The necessary quantity of oil depends on
the quantity of oil that has been drained.
The quantity of drained oil differs slightly
depending on the temperature of the oil
and the time the oil is left flowing out. After
refilling the engine with oil, therefore, you
must use the level gauge to confirm that
the level is correct.
7. Start the engine and make sure that no
oil leaks appear around the drain plug.
8. Run the engine until it reaches the
normal operating temperature. Then stop
the engine and wait a few minutes to allow
the oil drain back. Check the oil level
again and if necessary, add more engine
oil.
CAUTION
Be careful not to spill engine oil
when adding it. If oil touches the exhaust pipe, it may cause a bad
smell, smoke, and/or a fire.
& Recommended grade and
viscosity CAUTIONUse only engine oil with the recom-
mended grade and viscosity.
Refer to “ Engine oil ” F 12-4.
NOTE Engine oil viscosity (thickness) affects
fuel economy. Oils of lower viscosity
provide better fuel economy. However,
in hot weather, oil of higher viscosity is
required to properly lubricate the en-
gine.
& Synthetic oil You must follow the oil and filter changing
intervals shown in the Warranty and
Maintenance booklet.
NOTE Synthetic oil of the grade and viscosity
noted in chapter 12 is the recom-
mended engine oil for optimum engine
performance. Conventional oil may be11-16

Left-hand side
1. Left-hand side: Use a screwdriver to
remove the secured clip of the washer
tank. To make it easy to access the bulb,
turn the neck of the washer fluid filler pipe
as illustrated. Right-hand side
Right-hand side: Use a screwdriver to
undo the clips on the air intake duct, then
remove the air intake duct.
2. Disconnect the electrical connector
from the bulb as pushing the tab. Left-hand side
Right-hand side
3. Left-hand side: Remove the bulb
from the headlight assembly by turning it
counterclockwise.
Right-hand side: Remove the bulb fromMaintenance and service/Replacing bulbs
– CONTINUED –11-45

Maintenance and service/Replacing bulbs
the headlight assembly by turning it clock-
wise.
4. Replace the bulb with new one. At this
time, use care not to touch the bulb
surface.
5. To install the bulb to the headlight
assembly, turn it to the reverse direction
until it clicks.
6. Reconnect the electrical connector.
7. Left-hand side: Set the washer fluid
filler pipe to the original place and secure it
by clip.
Right-hand side: Install the air intake
duct with clips.
& Low beam headlight (models
without LED headlights),
front side marker light (if
equipped), parking light
(models without LED head-
lights) and front turn signal
light
NOTE . If headlight aiming is required, con-
sult your SUBARU dealer for proper
adjustment of the headlight aim.
. It may be difficult to replace the
bulbs. Have the bulbs replaced by your
SUBARU dealer if necessary.
1. Start the engine and turn the steering wheel fully in the opposite direction of the
bulb to be replaced.
2. Stop the engine.
3. Remove the clips from the mud guard.
4. Pull off the mud guard. ! Low beam headlight
1. Disconnect the electrical connector
from the bulb as pushing the tab.11-46

2. Open the rear portion of the trunk trim
panel as illustrated.
NOTE Make sure that the “
* ” part of the trunk
trim in the illustration does not contact
the trunk lid stay. If the “
* ” part is bent,
the trunk trim may be torn.
1) Rear side marker light
2) Backup light
3) Rear turn signal light
3. Remove the bulb socket from the rear
combination light assembly by turning it
counterclockwise.
4. Pull the bulb out of the bulb socket and
replace it with a new one.
5. Set the bulb socket into the rear
combination light assembly and turn it clockwise until it locks.
6. Secure the rear trunk trim panel with
the clips.
NOTE When replacing a bulb of the rear side
marker light, detach the bulb socket of
the backup light in advance. After
replacing the bulb, first attach the side
marker light, and then attach the back-
up light.
& License plate light
1. Open the trunk and remove the clips
from the trunk lid trim with a flat-head
screwdriver.
2. Turn over the trunk lid trim. 3. Turn the bulb socket counterclockwise
and pull out the socket.
4. Pull the bulb out of the socket.
5. Install a new bulb.
6. Reinstall the bulb socket and the trunk
lid trim.
& Other bulbs It may be difficult to replace the bulbs.
Have the bulbs replaced by your
SUBARU dealer if necessary. Maintenance and service/Replacing bulbs
11-49

Consumer information and Reporting safety defects/Tire information
.
Tread rib
A tread section running circumfer-
entially around a tire. .
Tread separation
Pulling away of the tread from the
tire carcass. .
Treadwear indicators (TWI)
The projections within the principal
grooves designed to give a visual
indication of the degrees of wear of
the tread. .
Vehicle capacity weight
The rated cargo and luggage load
plus 150 lbs (68 kg) times the
vehicle ’ s designated seating capa-
city. .
Vehicle maximum load on the
tire
Load on an individual tire that is
determined by distributing to each
axle its share of the maximum
loaded vehicle weight and dividing
by two. .
Vehicle normal load on the tire
Load on an individual tire that is
determined by distributing to each
axle its share of the curb weight, accessory weight, and normal oc-
cupant weight (distributed in accor-
dance with Table 1 that is ap-
pended to the end of this section)
and dividing by 2. .
Wheel-holding fixture
The fixture used to hold the wheel
and tire assembly securely during
testing.13-8

14-6 Index
Bulb wattage ....................................................... 12-16
Control switch ........................................................ 3-94
Flasher ................................................................. 3-96
Indicator light ......................................................... 3-35
HID headlights .......................................................... 11-44
High beam indicator light ............................................ 3-35
High/low beam change (dimmer) .................................. 3-96
Hill Holder ................................................................. 7-46
Indicator light ................................................. 3-24, 7-48
Switch .................................................................. 7-47
Hill start assist .................................................. 7-49, 11-29
OFF indicator light .................................................. 3-24
To activate/deactivate ............................................. 7-51
Warning light ......................................................... 3-24
HomeLink ®
.............................................................. 3-105
Hook
Coat ..................................................................... 6-11
Towing and tie-down ............................................... 9-12
Horn ........................................................................ 3-114
Hose and connections ............................................... 11-17
I
Ignition switch .............................................................. 3-4
Light ....................................................................... 3-6
Illumination brightness control ...................................... 3-98
Immobilizer. ................................................................. 2-3
Indicator light (security indicator light) ....................... 3-33
Indicator light
BSD/RCTA OFF. .................................................... 3-37
BSD/RCTA warning ................................................ 3-37
Cruise control ........................................................ 3-35 Cruise control set ................................................... 3-35
Front fog light ......................................................... 3-35
Headlight ............................................................... 3-35
High beam ............................................................. 3-35
Hill Holder ............................................................. 3-24
Hill start assist OFF ................................................ 3-24
Immobilizer ............................................................ 3-33
REV. ..................................................................... 3-37
Security ................................................................. 3-33
Select lever/Gear position ........................................ 3-34
Shift-up ................................................................. 3-34
SI-DRIVE .............................................................. 3-34
Steering responsive fog lights OFF ... ........................ 3-37
Traction control OFF ............................................... 3-27
Turn signal ............................................................ 3-35
Vehicle Dynamics Control OFF ................................. 3-27
Vehicle Dynamics Control operation .......................... 3-26
Inside mirror ............................................................ 3-103
Interior lights ............................................................... 6-2
Internal trunk lid release handle .................................... 2-37
J
Jack-up point .............................................................. 9-4
Jump starting .............................................................. 9-9
K
Key............................................................................ 2-3
Number .................................................................. 2-3
Reminder chime ...................................................... 3-5
Replacement. .......................................................... 2-4
Keyless access entry function ...................................... 2-13

Rear view camera ...................................................... 6-12
Rear window
Defogger .............................................................. 3-112
Recommended
Brake fluid. ............................................................ 12-7
Clutch fluid ................................................... 11-26, 12-7
Engine oil .............................................................. 12-4
Front differential gear oil ......................................... 12-6
Manual transmission oil .......................................... 12-6
Power steering fluid ................................................ 12-7
Rear differential gear oil .......................................... 12-6
Spark plugs ........................................................... 12-8
Refueling .................................................................... 7-5
Remote engine start system ........................................ 7-14
Remote keyless entry system ...................................... 2-21
Replacement
Brake pad and lining ............................................. 11-29
Wiper blades ........................................................ 11-39
Replacing
Access key battery ................................................ 11-50
Air cleaner element ............................................... 11-19
Battery (keyless access with push-button start
system) ...................................................... 2-18, 11-50
Battery (remote keyless entry system) ............. 2-24, 11-51
Lost transmitters (remote keyless entry system) ......... 2-24
Remote keyless entry transmitter battery .................. 11-51
Replacing bulbs .............................................. 11-44, 12-16
Front fog light ....................................................... 11-47
Headlight ............................................................. 11-44
License plate light ................................................. 11-49
Rear combination light ........................................... 11-48 Rear side marker light ........................................... 11-48
Rear turn signal light ............................................. 11-48
Stop light ............................................................. 11-48
Tail light. .............................................................. 11-48
REV indicator light and buzzer ..................................... 3-12
Rocking the vehicle .................................................... 8-10
S
Safety
Precautions when driving ............................................. 3
Symbol ...................................................................... 2
Warnings ................................................................... 2
Seat
Fabric ................................................................... 10-5
Front ...................................................................... 1-2
Heater .................................................................... 1-6
Height adjustment .................................................... 1-4
Power .................................................................... 1-5
Rear ...................................................................... 1-7
Seatbelt. ................................................................ 3, 1-11
Fastening .............................................................. 1-13
Maintenance .......................................................... 1-16
Pretensioners ......................................................... 1-17
Safety tips ............................................................. 1-11
Warning light and chime .......................................... 3-14
Security
Alarm
system ......................................................... 2-25
Immobilizer ............................................................. 2-3
Indicator light ......................................................... 3-33
Shock sensors ....................................................... 2-31 Index
14-9