key battery SUBARU BRZ 2018 Owner's Manual

Maintenance and care4
335
BRZ_U (A4450BE-A)
4-1. Maintenance and careCleaning and protecting the vehicle exterior......... 336
Cleaning and protecting the vehicle interior.......... 342
Cleaning and protecting the Alcantara
® area ....... 346
4-2. Maintenance Maintenance requirements .................. 348
General maintenance....... 351
Emission inspection and maintenance (I/M)
programs........................ 354 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions .................... 355
Engine hood ..................... 358
Engine compartment ........ 360
Tires ................................. 374
Tire inflation pressure ...... 382
Wheels ............................. 386
Air conditioning filter......... 389
Transmitter/ access key battery ......... 392
Checking and replacing fuses .............................. 397
Light bulbs........................ 405

357
4-3. Do-it-yourself maintenance
4
Maintenance and care
BRZ_U (A4450BE-A)
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
■
When working in the engine compartment
● Keep hands, clothing, and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
■ When working near the electric cooling fans or radiator grille
Vehicles without a keyless access with push button start system: Be sure the
engine switch is off. With the engine switch in the “ON” position, the electric
cooling fans may automatically start to run if the air conditioning is on and/or
the coolant temperature is high. ( →P. 366)
Vehicles with a keyless access with push button start system: Be sure the
push-button ignition switch is off. With the push-button ignition switch in
“ON” mode, the electric cooling fans may automatically start to run if the air
conditioning is on and/or the coolant temperature is high. ( →P. 366)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.
CAUTION
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air. Also a backfire could cause a fire in the engine compart-
ment.

370 4-3. Do-it-yourself maintenance
BRZ_U (A4450BE-A)
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable
and explosive. Therefore, before recharging:
●If recharging with the battery installed on the vehicle, be sure to discon-
nect the ground cable.
● Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the battery.
■ After recharging/reconnecting the battery (vehicles with a keyless
access with push button start system)
●Unlocking the doors using the keyless access with push button start sys-
tem may not be possible immediately after reconnecting the battery. If
this happens, use the remote keyless entry system or the mechanical
key to lock/unlock the doors.
● Start the engine with the push-button i gnition switch in “ACC” mode. The
engine may not start with the push-button ignition switch turned off. How-
ever, the engine will operate normally from the second attempt.
● The push-button ignition switch mode is recorded by the vehicle. If the
battery is reconnected, the vehicle will return the push-button ignition
switch mode to the status it was in before the battery was disconnected.
Make sure to turn off the engine before disconnect the battery. Take extra
care when connecting the battery if the push-button ignition switch mode
prior to discharge is unknown.
If the engine will not start even after multiple attempts, contact your
SUBARU dealer.

392
4-3. Do-it-yourself maintenance
BRZ_U (A4450BE-A)
Transmitter/access key batter y
Replace the battery with a new one if it is depleted.
■You will need the following items:
● Flathead screwdriver
● Lithium battery CR2016 (vehicles without a keyless access
with push button start system), or CR2032 (vehicles with a
keyless access with push button start system)
■ Replacing the battery (vehicles without a keyless access
with push button start system)
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver
with a rag.
To prevent the buttons from
being disassembled, face the
button surface downward.
Remove the module.
STEP1
STEP2

393
4-3. Do-it-yourself maintenance
4
Maintenance and care
BRZ_U (A4450BE-A)
Open the case cover using a
coin protected with tape and
remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
■
Replacing the battery (vehicles with a keyless access with
push button start system)
Take out the mechanical key.
Insert the tip of a flathead
screwdriver into the groove
and remove the cover.
To prevent damage to the key,
wrap the tip of the screwdriver
with protective tape.
STEP3
STEP1
STEP2Groove

394 4-3. Do-it-yourself maintenance
BRZ_U (A4450BE-A)
Remove the depleted battery.
To prevent damage to the key,
wrap the tip of the screwdriver
with protective tape.
Install a new battery with the
“+” terminal facing up, as
shown in the illustration.
Align the protruding part with
the slot and install the cover.
STEP3
STEP4
STEP5

395
4-3. Do-it-yourself maintenance
4
Maintenance and care
BRZ_U (A4450BE-A)
■
Use a CR2016 (vehicles without a keyless access with push button
start system) or CR2032 (vehicles with a keyless access with push but-
ton start system) lithium battery
● Batteries can be purchased at your SUBARU dealer, local electrical
appliance shops or camera stores.
● Replace only with the same or equivalent type recommended by the
manufacturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
● The keyless access with push button start system (if equipped) and
remote keyless entry system will not function properly.
● The operational range will be reduced.
■ When putting the module back (vehicles without a keyless access with
push button start system)
WARNING
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. Failure to do so could result in death or serious
injury.
Insert the module from directly above.
Inserting it on an angle may prevent the
key buttons from operating properly.

When trouble arises5
417
BRZ_U (A4450BE-A)
5-1. Essential informationHazard warning flashers .......................... 418
If your vehicle needs to be towed ........................ 419
If you think something is wrong ............................. 426
Fuel pump shut off system ........................... 427
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 428
If a warning message is displayed........................ 440
If you have a flat tire......... 457
If the engine will not start ................................ 471 If the select lever cannot
be shifted from P ............ 474
If you lose your keys ........ 475
If the access key does not operate properly....... 476
If the battery is discharged ..................... 480
If your vehicle overheats ....................... 485
If the vehicle becomes stuck .............................. 488

5
When trouble arises
471
5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
If the engine will not start
If the engine will not start even though correct starting procedures
are being followed ( →P. 172, 182), consider each of the following
points.
■ The engine will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 172, 182)
● There may be a malfunction in the engine immobilizer system.
(→ P. 82)
■ The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem.
●The battery may be discharged. ( →P. 480)
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over. (vehicles with a key-
less access with push button start system)
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine.
(→ P. 472)

472 5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
Emergency start function (vehicles with a keyless access with
push button start system)When the engine does not start, the following steps can be used as
an interim measure to start the engine if the push-button ignition
switch is functioning normally:
Vehicles with an automatic transmission Set the parking brake.
Put the select lever in P.
Set the push-button ignition switch to “ACC” mode.
Press and hold the push-button ignition switch about 15 sec-
onds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle checked by your SUBARU
dealer.
■ The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( →P. 480)
● There may be a malfunction in the steering lock system. (vehi-
cles with a keyless access with push button start system)
Contact your SUBARU dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
STEP 4