2021 TOYOTA YARIS battery

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YARIS(HB) Owner's Manual_Europe_MK0001_en
6-3. Do-it-yourself maintenance
6-3.Do-it-y ours elf main ten ance
Do-it-yourself service
precautions
If you perform maintenance by
yourself, be sure to follow the
correct procedure as given in
these sections.
Maintenance
ItemsParts and tools
Battery con-
dition
( →P.325)
•Warm water
• Baking soda
• Grease
• Conventional wrench
(for terminal clamp
bolts)
Engine cool-
ant level
( →P.324)
• “Toyota Super Long
Life Coolant” or a simi-
lar high quality eth-
ylene glycol-based
non-silicate, non-
amine, non-nitrite and
non-borate coolant
with long-life hybrid
organic acid technol-
ogy.
“Toyota Super Long
Life Coolant” is pre-
mixed with 50% cool-
ant and 50% deionized
water.
• Funnel (used only for
adding coolant)
Engine oil
level
( →P.321)
• “Toyota Genuine Motor
Oil” or equivalent
• Rag or paper towel
• Funnel (used only for
adding engine oil)
Fuses
( →P.348)
• Fuse with same
amperage rating as
original
Light bulbs
( →P.351)
• Bulb with same num-
ber and wattage rating
as original
• Flathead screwdriver
•Wrench
Radiator,
condenser
( →P.324)
⎯
Tire inflation
pressure
( →P.340)
• Tire pressure gauge
• Compressed air
source
Washer fluid
( →P.329)
• Water or washer fluid
containing antifreeze
(for winter use)
• Funnel (used only for
adding water or
washer fluid)
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 on 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 and
rags, in the engine compartment.
ItemsParts and tools

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YARIS(HB) Owner's Manual_Europe_MK0001_en
6-3. Do-it-yourself maintenance
Maintenance and care
1Pull the hood lock release lever.
The hood will pop up slightly.
2Push the auxiliary catch lever to
the left and lift the hood.
WARNING
●Do not smoke, cause sparks or expose an open flame to fuel or the
battery. Fuel and battery fumes are flammable.
●Be extremely cautious when work-ing on the battery. It contains poi-sonous and corrosive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and dam-
age painted surfaces. If fluid gets on your hands or in your eyes, flush the affected area with clean water
immediately. If you still experience discomfort, consult a doctor.
■When working near the electric cooling fan or radiator grille
Be sure the engine switch is OFF. With the engine switch in ON, the electric cooling fan may automatically
start to run if the air conditioning is on and/or the coolant temperature is high. ( →P.324)
■Safety glasses
Wear safety glasses to prevent flying
or falling material, fluid spray, etc. from getting in your eyes.
NOTICE
■If you remove the air cleaner fil-ter
Driving with the air cleaner filter
removed may cause excessive engine wear due to dirt in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.If the reservoir needs frequent refill-
ing, it may indicate a serious problem.
Hood
Opening the hood

321
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YARIS(HB) Owner's Manual_Europe_MK0001_en
6-3. Do-it-yourself maintenance
Maintenance and care
Washer fluid tank (→P.329)
Fuse boxes (→P.348)
Engine oil filler cap (→P.322)
Engine oil level dipstick (→P.321)
Battery (→P.325)
Engine coolant reservoir (→P. 3 2 4 )
Radiator (→P.324)
Condenser (→P.324)
Electric cooling fan
With the engine at operating tem-
perature and turned off, check the
oil level on the dipstick.
■Checking the engine oil
1Park the vehicle on level
ground. After warming up the
engine and turning it off, wait
more than 5 minutes for the oil
to drain back into the bottom of
the engine.
2Holding a rag under the end,
pull the dipstick out.
1KR-FE engine
M15A-FKS engine
3Wipe the dipstick clean.
4Reinsert the dipstick fully.
Checking and adding the
engine oil

325
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YARIS(HB) Owner's Manual_Europe_MK0001_en
6-3. Do-it-yourself maintenance
Maintenance and care
Check the battery as follows.
■Battery exterior
Make sure that the battery termi-
nals are not corroded and that there
are no loose connections, cracks,
or loose clamps.
Terminals
Hold-down clamp
■Checking battery fluid
Check that the level is between the
“UPPER LEVEL/max.” and
“LOWER LEVEL/min.” lines.
“Upper line/max.” line
“Lower line/min.” line
Add distilled water before the fluid level
drops below the “Lower line/min.” line.
■Checking the battery condition
(vehicles with battery indica-
tor)
Check the battery condition by indi-
cator color.
Red and clear: Replacement is
necessary. Have the battery
checked by any authorized
Toyota retailer or Toyota autho-
rized repairer, or any reliable
repairer.
Clear and red: Charging is nec-
essary. Have the vehicle
inspected by any authorized
Toyota retailer or Toyota autho-
rized repairer, or any reliable
repairer.
Blue and red: Good condition
■Adding distilled water
1 Remove the vent plug.
2 Add distilled water.
If it is difficult to see the fluid level from
WARNING
■When the engine is hot
Do not touch the radiator or con-
denser as they may be hot and cause serious injuries, such as burns.
Battery

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YARIS(HB) Owner's Manual_Europe_MK0001_en
6-3. Do-it-yourself maintenance
the side, check it by looking directly into
the cell.
LOW
O.K.
3 Put the vent plug back on and
close it securely.
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the fol- lowing precautions before recharging:
●If recharging with the 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 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 possi-ble immediately after reconnecting the
battery. If this happens, use the wire- less remote control or the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACC. The engine may not
start with the engine switch turned off. However, the engine will operate nor-mally from the second attempt.
●The engine switch mode is recorded by the vehicle. If the battery is recon-
nected, the vehicle will return the
engine switch mode to the status it was in before the battery was discon-nected. Make sure to turn off the
engine before disconnecting the bat- tery. Take extra care when connecting the battery if the engine switch mode
prior to discharge is unknown.
If the system will not start even after
multiple attempts, contact any autho-
rized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
■Removing the battery holder (Bat- tery size LN1)
1 Remove the bolt.
2 Detach from the fitting hole while
pulling the battery holder for-
ward.
3 Pull the battery holder forward, point
the end upward and take out.

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YARIS(HB) Owner's Manual_Europe_MK0001_en
6-3. Do-it-yourself maintenance
Maintenance and care
■Removing the battery holder (Bat-
tery size LN2)
1 Remove the bolt.
2 Detach from the fitting hole while
pulling the battery holder for-
ward.
3 Pull the battery holder forward, point the end upward and take out.
■Installing the battery holder (Bat-tery size LN1)
1 Place the battery in the battery tray and press it toward the rear and
inside of the vehicle.
2 Point the end of the battery holder
upward.
3 Lower the battery holder down until it
makes contact with the battery tray.
4 Pull the battery holder forward and
push into the battery tray fitting hole. ( →P.328)
5 Align the battery holder with bolt hole and tighten the bolt.
15.4 N•m (1.6 kgf•m, 11.4 ft•lbf)

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YARIS(HB) Owner's Manual_Europe_MK0001_en
6-3. Do-it-yourself maintenance
■Installing the battery holder (Bat-
tery size LN2)
1 Place the battery in the battery tray and press it toward the rear and inside of the vehicle.
2 Point the end of the battery holder upward.
3 Lower the battery holder down until it makes contact with the battery tray.
4 Pull the battery holder forward and push into the battery tray fitting hole.
( →P.328)
5 Align the battery holder with bolt hole
and tighten the bolt.
15.4 N•m (1.6 kgf•m, 11.4 ft•lbf)
■Battery size
The hole for inserting the battery holder
may differ depending on the size of the battery.
If the battery size is LN1 insert the bat-
tery holder into hole , if LN2 insert
into hole .
Battery size LN1
Battery size LN2
WARNING
■Chemicals in the battery
The battery contains poisonous and corrosive sulfuric acid and may pro-duce hydrogen gas which is flamma-
ble and explosive. To reduce the risk of death or serious injury, take the fol-lowing 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.

329
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YARIS(HB) Owner's Manual_Europe_MK0001_en
6-3. Do-it-yourself maintenance
Maintenance and care
If the washer fluid level is at “1/2”,
add washer fluid.
WARNING
●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 bat-tery.
■Where to safely charge the bat-tery
Always charge the battery in an open
area. Do not charge the battery in a garage or closed room where there is insufficient ventilation.
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyesFlush 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 med-ical attention immediately.
●If electrolyte gets on your clothesIt can soak through clothing on to
your skin. Immediately take off the clothing and follow the procedure above if necessary.
●If you accidentally swallow electro-lyte
Drink a large quantity of water or milk. Get emergency medical atten-tion immediately.
■When disconnecting the battery
Do not disconnect the negative (-) ter-
minal on the body side. The discon- nected negative (-) terminal may touch the positive (+) terminal, which
may cause a short and result in death or serious injury.
NOTICE
■When recharging the battery
Never recharge the battery while the
engine is running. Also, be sure all accessories are turned off.
Adding the washer fluid
WARNING
■When adding washer fluid
Do not add washer fluid when the engine is hot or running 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, as well as
damaging the pump leading to prob- lems of the washer fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as nec- essary.
Refer to the freezing temperatures listed on the label of the washer fluid bottle.