battery SUBARU BRZ 2017 1.G Service Manual

347 4-3. Do-it-yourself maintenance
4
Maintenance and care
WARNING
■Chemicals in the battery
A battery contains poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the
battery:
●Do not cause sparks by touching the battery terminals with tools.
●Do not smoke or light a match near the battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when working near the battery.
●Keep children away from the battery.
■Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room where there is not sufficient ventilation.
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
●If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
●If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.

348 4-3. Do-it-yourself maintenance
Washer fluid
If the washer fluid level is at
“LOW”, add washer fluid.
CAUTION
■When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
■When adding distilled water
Avoid overfilling. Water spilled during battery recharging may cause corro-
sion.
■Using the gauge
The washer fluid level can be checked by
observing the position of the level on the
liquid-covered holes in the gauge.
If the level falls below the second hole
from the bottom (the “LOW” position),
refill the washer fluid.
CTH43AS134
Current
fluid level

367
4-3. Do-it-yourself maintenance
4
Maintenance and care
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

368 4-3. Do-it-yourself maintenance
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

369 4-3. Do-it-yourself maintenance
4
Maintenance and care
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

370 4-3. Do-it-yourself maintenance
■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.

371 4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control.
●Do not bend either of the battery terminals.

When trouble arises5
391
5-1. Essential information
Hazard warning
flashers .......................... 392
If your vehicle needs to
be towed ........................ 393
If you think something is
wrong ............................. 400
Fuel pump shut off
system ........................... 4015-2. Steps to take in an
emergency
If a warning light turns
on or a warning buzzer
sounds... ....................... 402
If a warning message is
displayed ........................ 414
If you have a flat tire......... 431
If the engine will
not start .......................... 444
If the select lever cannot
be shifted from P ............ 447
If you lose your keys ........ 448
If the access key does not
operate properly ............. 449
If the battery is
discharged ..................... 453
If your vehicle
overheats ....................... 458
If the vehicle becomes
stuck .............................. 461

392
5-1. Essential information
Hazard war ning flashers
■Hazard warning flashers
If the hazard warning flashers are used for a long time while the engine is
not operating, the battery may discharge. The hazard warning flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.
Press the switch.
All the turn signal lights will
flash. To turn them off, press
the switch once again.

444
5-2. Steps to take in an emergency
If the engine will not star t
If the engine will not start even though correct starting procedures
are being followed (oP. 169, 178), 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. (oP. 169, 178)
●There may be a malfunction in the engine immobilizer system.
(oP. 80)
■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. (oP. 453)
●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.
(oP. 445)