warning light TOYOTA YARIS HATCHBACK 2021 Workshop Manual

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4-5. Using the driving support systems
WARNING
●The vehicle hydroplanes while driv- ing at high speed on wet or slick
roads.
■Stopping distance when the ABS
is operating may exceed that of normal conditions
The ABS is not designed to shorten
the vehicle’s stopping distance. Always maintain a safe distance from the vehicle in front of you, especially
in the following situations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with pot-holes or uneven surfaces
■TRC/VSC may not operate effec-tively when
Directional control and power may not be achievable while driving on slip-pery road surfaces, even if the
TRC/VSC system is operating. Drive the vehicle carefully in conditions where stability and power may be
lost.
■Active Cornering Assist does not
operate effectively when
●Do not overly rely on Active Corner- ing Assist. Active Cornering Assist
may not operate effectively when accelerating down slopes or driving on slippery road surfaces.
●When Active Cornering Assist fre-quently operates, Active Cornering
Assist may temporarily stop operat- ing to ensure proper operation of the brakes, TRC and VSC.
■Hill-start assist control does not operate effectively when
●Do not overly rely on hill-start assist
control. Hill-start assist control may not operate effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist control is not intended to hold
the vehicle stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an acci-dent.
■When the TRC/VSC/Trailer Sway Control is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause an accident. Exercise particular
care when the indicator light flashes.
■When the TRC/VSC/Trailer Sway
Control systems are turned off
Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are the systems to help ensure vehicle stability and driv-ing force, do not turn the
TRC/VSC/Trailer Sway Control sys- tems off unless necessary.Trailer Sway Control is part of the
VSC system and will not operate if VSC is turned off or experiences a malfunction.
■Replacing tires
Make sure that all tires are of the
specified size, brand, tread pattern and total load capacity. In addition, make sure that the tires are inflated to
the recommended tire inflation pres- sure level.The ABS, TRC Trailer Sway Control
and VSC systems will not function correctly if different tires are installed on the vehicle.
Contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer for further information
when replacing tires or wheels.

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5-3. Using the storage features
Interior features
5-3.Using the s torage feature s
Bottle holders (→P.294)
Glove box ( →P.293)
Cup holders ( →P.294)
Pull up the lever to open the glove
box.
List of storage features
Location of the storage features
WARNING
■Items that should not be left in the storage spaces
Do not leave glasses, lighters or
spray cans in the storage spaces, as this may cause the following when cabin temperature becomes high:
●Glasses may be deformed by heat or cracked if they come into contact
with other stored items.
●Lighters or spray cans may
explode. If they come into contact with other stored items, the lighter may catch fire or the spray can may
release gas, causing a fire hazard.
Glove box

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5-4. Other interior features
type of cover and/or accessory
attached, it may not be possible to charge the portable device. If the porta-ble device is placed on the charging
area and does not charge, remove the cover and/or accessories.
■If interference is heard in AM radio broadcasts while charging
Turn off the wireless charger and check if the noise is reduced. If noise is reduced, press and hold the power sup-
ply switch of the wireless charger for 2 seconds. The frequency of the wireless charger is changed and noise may be
reduced. When the frequency is changed, the operation indicator light will blink (orange) 2 times.
■Charging precautions
●If the electronic key cannot be detected in the cabin, charging cannot
be performed. When a door is opened and closed, charging may be tempo-rarily suspended.
●While charging, the wireless charger and the portable device will become
warm. This is not a malfunction.If a portable device becomes warm while charging
and charging stops due to the protec- tion function of the portable device, wait until the portable device cools
down and charge it again.
■Sound generated during operation
When the power supply switch is turned on or while a portable device is being
identified, operation sounds may be heard. This is not a malfunction.
■Cleaning the wireless charger
→ P. 3 1 1
WARNING
■Caution while driving
When charging a portable device while driving, for safety reasons, the
driver should not operate the portable device.
■Caution regarding interference with electronic devices
People with implantable cardiac pace-
makers, cardiac resynchronization therapy pacemakers or implantable cardioverter defibrillators, as well as
any other electrical medical device, should consult their physician about the usage of the wireless charger.
Operations of the wireless charger may have an affect on medical devices.
■To prevent damage or burns
Observe the following precautions.
Failure to do so may result in the pos- sibility of fire, equipment failure or damage, or burns due to heat.
●Do not put any metallic objects between the charging area and the
portable device while charging.
●Do not attach metallic objects, such
as aluminum stickers, to the charging area.
●Do not cover the wireless charger with a cloth or other object while charging.
●Do not attempt to charge portable devices which are not compatible
with the Qi wireless charging stan- dard.
●Do not disassemble, modify or remove the wireless charger.
●Do not apply force or impact to the wireless charger.
NOTICE
■Conditions in which the wireless
charger may not operate cor- rectly
In the following situations, the wire-
less charger may not operate cor- rectly:
●When a portable device is fully
charged

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5-4. Other interior features
■To prevent battery discharge
If the vanity lights remain on when the
engine switch is OFF, the lights will go off automatically after 20 minutes.
An assist grip installed on the ceil-
ing can be used to support your
body while sitting on the seat.
Front
Rear (if equipped)
The coat hooks are provided with
the rear assist grips.
Typ e A
NOTICE
■To prevent the battery from being discharged
Do not leave the vanity lights on for
extended periods while the engine is stopped.
Assist grips
WARNING
■Assist grip
Do not use the assist grip when get- ting in or out of the vehicle or rising
from your seat.
NOTICE
■To prevent damage to the assist grip
Do not hang any heavy object or put a
heavy load on the assist grip.
Coat hooks

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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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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

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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.

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6-3. Do-it-yourself maintenance
Front
To equalize tire wear and help extend
tire life, Toyota recommends that tire
rotation is carried out approximately
every 10000 km (6000 miles).
When rotating front and rear tires which
have different tire inflation pressures,
do not fail to initialize the tire pressure
warning system after tire rotation.
Your vehicle is equipped with a tire
pressure warning system that uses
tire pressure warning valves and
transmitters to detect low tire infla-
tion pressure before serious prob-
lems arise.
The tire pressure warning system
of this vehicle adopts a 2-type
warning system.
zWhen “Adjust Pressure” is dis-
played (Normal Warning)
A warning with the tire pressure warn-
ing light and warning buzzer when
there is an unknown level of low tire
pressure with the appearance of the tire
due to natural air leakage as well as the
pressure lowering due to changes in
the pressure according to the outside
temperature. (Ways of coping: →P.375,
417)
zWhen “Immediately Check tire
when Safe” is displayed (Emer-
gency Warning)
A warning with the tire pressure warn-
ing light and warning buzzer when
there is a known level of low tire pres-sure with the appearance of the tire due
to pressure suddenly lowering. (Ways
of coping: →P.379, 389)
However, the system may not be able
to detect sudden tire ruptures (bursting,
etc.).
The tire pressure detected by the
tire pressure warning system can
be displayed on the multi-informa-
tion display.
The unit can be changed.
■How to change the unit
1Park the vehicle in a safe place
and turn the engine switch off.
Changing the unit cannot be performed
while the vehicle is moving.
2Turn the engine switch to ON.
3Press / (vertical display)
or / (horizontal display)
of the meter control switch to
select .
4Press / (vertical display)
or / (horizontal display)
to select “Vehicle Settings” and
then press and hold .
Tire pressure warning sys-
tem

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6-3. Do-it-yourself maintenance
When new tire pressure warning
valves and transmitters are
installed, new ID codes must be
registered in the tire pressure warn-
ing computer and the tire pressure
warning system must be initialized.
Have tire pressure warning valves
and transmitter ID codes regis-
tered any authorized Toyota retailer
or Toyota authorized repairer, or
any reliable repairer. ( →P.336)
■Replacing tires and wheels
If the ID code of the tire pressure warn- ing valve and transmitter is not regis-tered, the tire pressure warning system
will not work properly. After driving for about 10 minutes, the tire pressure warning light blinks for 1 minute and
stays on to indicate a system malfunc- tion.■The tire pressure warning sys-
tem must be initialized in the
following circumstances:
z When rotating front and rear tires
which have different tire inflation
pressures.
z When changing the tire size.
z When the tire inflation pressure
is changed such as when chang-
ing traveling speed or load
weight.
z When changing between two
registered wheel sets.
When the tire pressure warning
system is initialized, the current tire
inflation pressure is set as the
benchmark pressure.
NOTICE
■Repairing or replacing tires,
wheels, tire pressure warning valves, transmitters and tire valve caps
●When removing or fitting the wheels, tires or the tire pressure warning valves and transmitters,
contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer as
the tire pressure warning valves and transmitters may be damaged if not handled correctly.
●Make sure to install the tire valve caps. If the tire valve caps are not
installed, water could enter the tire pressure warning valves and the tire pressure warning valves could
be bound.
●When replacing tire valve caps, do not use tire valve caps other than those specified. The cap may
become stuck.
■To avoid damage to the tire pres-
sure warning valves and trans- mitters
When a tire is repaired with liquid
sealants, the tire pressure warning valve and transmitter may not operate properly. If a liquid sealant is used,
contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer as soon as possible.
Make sure to replace the tire pressure warning valve and transmitter when replacing the tire. ( →P.333)
Initializing the tire pressure
warning system

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6-3. Do-it-yourself maintenance
Maintenance and care
■How to initialize the tire pres-
sure warning system
1Park the vehicle in a safe place
and turn the engine switch off.
Initialization cannot be performed while
the vehicle is moving.
2Adjust the tire inflation pressure
to the specified cold tire inflation
pressure level. (→P.417)
Make sure to adjust the tire pressure to
the specified cold tire inflation pressure
level. The tire pressure warning system
will operate based on this pressure
level.
3Turn the engine switch to ON.
4Press / (vertical display)
or / (horizontal display)
of the meter control switch to
select .
5Press / (vertical display)
or / (horizontal display)
to select “Vehicle Settings” and
then press and hold .
6Press / to select “TPWS
setting” and then press .
7Press / to select “Setting
Pressure”. Then press and hold
until the tire pressure warn-
ing light blinks 3 times.
Then a message will be displayed on
the multi-information display. “--” will be
displayed on the multi-information dis-
play for the inflation pressure of each tire while initialization is being per-
formed.
8Drive straight (with occasional
left and right turns) at approxi-
mately 40 km/h (25 mph) or
more for approximately 10 to 30
minutes.
Initialization is complete when the posi-
tion of each tire is determined and the
inflation pressure of each tire is dis-
played on the multi-information display.
Initialization may take longer than
approximately 1 hour in certain situa-
tions, such as when the vehicle is
stopped for a long time at traffic lights,
etc. (→P.337)
■Initialization procedure
●Make sure to carry out initialization
after adjusting the tire inflation pres-
sure.
Also, make sure the tires are cold
before carrying out initialization or tire
inflation pressure adjustment.
●If you have accidentally turned the
engine switch off during initialization, it
is not necessary to press the reset
switch again as initialization will
restart automatically when the engine
switch is turned to ON the next time.
●If you accidentally press the reset
switch when initialization is not neces-
sary, adjust the tire inflation pressure
to the specified level when the tires
are cold, and conduct initialization
again.
●While the position of each tire is being