battery TOYOTA YARIS 2012 Repair Manual

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Maintenance and care
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Before recharging
When recharging, the battery produces hydrogen gas which is flammable
and explosive. Therefore, observe the following 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 smart entry
& start system)
Unlocking the doors using the smart entry & start system may not be
possible immediately after reconnecting the battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the
doors.
Start the engine with the “ENGINE START STOP” switch in ACCES-
SORY mode. The engine may not start with the “ENGINE START STOP”
switch turned off. However, the engine will operate normally from the sec-
ond attempt.
The “ENGINE START STOP” switch mode is recorded by the vehicle. If
the battery is reconnected, the vehicle will return the “ENGINE START
STOP” switch mode to the status it was in before the battery was discon-
nected. Make sure to turn off the engine before disconnect the battery.
Take extra care when connecting the battery if the “ENGINE START
STOP” switch mode prior to discharge is unknown.
If the engine will not start even after multiple attempts, contact any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.

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CAUTION
Chemicals in the battery
Batteries contain 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 insufficient ventilation.
How to recharge the battery
Only perform a slow charge (5 A or less). The battery may explode if
charged at a quicker rate.
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.

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Maintenance and care
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Washer fluid
If the washer fluid level is less
than “FULL” line, add washer
fluid to “FULL” line.
NOTICE
When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
CAUTION
When adding washer fluid
Do not add washer fluid when the engine is hot or running (except hybrid
vehicle) or the hybrid system is hot or operating (hybrid vehicle) as washer
fluid contains alcohol and may catch fire if spilled on the engine etc.
NOTICE
Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

487
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Maintenance and care
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12-volt batter y (hybrid vehicle)
Location
The 12-volt battery is located
under the rear right seat.
Removing the 12-volt battery cover
Ty p e A
Remove the cover after
removing the clips.
Ty p e B
Remove the cover after
removing the clips.

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Remove the cover after
removing the clip.
Exterior
Make sure that the 12-volt battery terminals are not corroded
and that there are no loose connections, cracks, or loose
clamps.
Terminals
Hold-down clamp

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Maintenance and care
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Installing the 12-volt battery cover
Ty p e A
Install the cover with the clips.

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Maintenance and care
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Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following precautions before
recharging:
If recharging with the 12-volt battery installed on the vehicle, be sure to
disconnect the ground cable.
Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the 12-volt battery.
When disconnecting the 12-volt battery terminals
Always disconnect the negative (-) terminal first.
After recharging/reconnecting the 12-volt battery
Unlocking the doors using the smart entry & start system may not be
possible immediately after reconnecting the 12-volt battery. If this hap-
pens, use the wireless remote control or the mechanical key to lock/
unlock the doors.
Vehicles with an electronic key: Start the hybrid system with the
“POWER” switch in ACCESSORY mode. The hybrid system may not
start with the “POWER” switch turned off. However, the hybrid system will
operate normally from the second attempt.
Caution symbols
The meanings of each caution symbol on the top of the battery are
as follows:
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating
instructions
Keep away from childrenExplosive gas

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Vehicles with an electronic key: The “POWER” switch mode is recorded
by the vehicle. If the 12-volt battery is reconnected, the vehicle will return
the “POWER” switch mode to the status it was in before the 12-volt bat-
tery was disconnected. Make sure to turn off the power before discon-
nect the 12-volt battery. Take extra care when connecting the 12-volt
battery if the “POWER” switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
CAUTION
Chemicals in the 12-volt battery
The 12-volt 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 12-volt battery:
Do not cause sparks by touching the 12-volt battery terminals with tools.
Do not smoke or light a match near the 12-volt battery.
Avoid contact with eyes, skin and clothes.
Never inhale or swallow electrolyte.
Wear protective safety glasses when working near the 12-volt battery.
Keep children away from 12-volt battery.
Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt
battery in a garage or closed room where there is insufficient ventilation.
When disconnecting the 12-volt battery terminals
Always disconnect the negative (-) terminal first. If the positive (+) terminal is
disconnected first and touches a surrounding metal surface sparks will be
produced, possibly starting a fire. It could also result in an electric shock or
serious injury.
How to recharge the 12-volt battery
Only perform a slow charge (3.5 A or less). The 12-volt battery may explode
if charged at a quicker rate.

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Maintenance and care
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CAUTION
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.
When replacing the 12-volt battery
Use a 12-volt battery designed for this vehicle. Failure to do so may cause
gas (hydrogen) to enter the passenger compartment, causing a fire or explo-
sion.
For replacement of the 12-volt battery, contact any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
NOTICE
When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are turned off.

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Maintenance and care
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Wireless remote control/electronic 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 smart entry & start
system or a push-button start system), or CR2032 (vehicles
with a smart entry & start system or a push-button start sys-
tem)
Replacing the wireless remote control battery
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver
with a tape.
Remove the module.