air condition TOYOTA YARIS CROSS 2021 Workshop Manual

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5-1. Using the air conditioning system and defogger
Interior features
WARNING
■To prevent overheating and minor burn injuries
Observe the following precautions when using the seat heaters.
●Do not cover the seat with a blanket or cushion when using the seat heater.
●Do not use seat heater more than necessary.

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5-2. Using the interior lights
Interior features
Turns the lights on/off
■Illuminated entry system
The lights automatically turn on/off according to the power switch mode, the presence of the electronic key (vehicles
with entry function), whether the doors are locked/unlocked, and whether the doors are opened/closed.
■To prevent the 12-volt battery from
being discharged
If the interior lights remain on when the power switch is turned off, the lights will
go off automatically after 20 minutes.
■The interior lights may turn on automatically when
If any of the SRS airbags deploy (inflate)
or in the event of a strong rear impact, the interior lights will turn on automati-cally.
The interior lights will turn off automati- cally after approximately 20 minutes.The interior lights can be turned off man-
ually. However, in order to help prevent further collisions, it is recommended that they be left on until safety can be
ensured. (The interior lights may not turn on auto-matically depending on the force of the
impact and conditions of the collision.)
■Customization
Some functions can be customized. ( P.498)
Operating the personal
lights
NOTICE
■To prevent 12-volt battery dis- charge
Do not leave the lights on longer than necessary when the hybrid system is off.

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6
Maintenance and care
Maintenance and care
6-1. Maintenance and care
Cleaning and protecting the
vehicle exterior ............... 376
Cleaning and protecting the
vehicle interior ................ 379
6-2. Maintenance
Maintenance requirements 382
6-3. Do-it-yourself maintenance
Do-it-yourself service precau-
tions ................................ 384
Hood ................................. 386
Positioning a floor jack...... 387
Engine compartment ........ 389
12-volt battery ................... 394
Tires .................................. 396
Tire inflation pressure ....... 406
Wheels.............................. 408
Air conditioning filter ......... 410
Cleaning the hybrid battery
(traction battery) air intake
vent and filter .................. 412
Wireless remote control/elec-
tronic key battery ............ 415
Checking and replacing fuses
....................................... 418
Light bulbs ........................ 423

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6-1. Maintenance and care
NOTICE
• If liquids such as benzene and gas- oline are spilled on the paint sur-
face
●If the paint is chipped or scratched,
have it repaired immediately.
●To prevent the wheels from corrod-
ing, remove any dirt and store in a place with low humidity when stor-ing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic
substances or scrub with a hard brush.This may damage the surfaces of
the lights.
●Do not apply wax to the surfaces of
the lights. Wax may cause damage to the lenses.
■To prevent damage to the wind-shield wiper arms
When lifting the wiper arms away from the windshield, pull the driver side wiper arm upward first, and
repeat for the passenger side. When returning the wipers to their original position, do so from the passenger
side first.
■When using an automatic car
wash (vehicles with rain-sensing windshield wipers)
Set the wiper switch to the off posi-
tion. If the wiper switch is in “AUTO”, the wipers may operate and the wiper blades may be damaged.
■When using a high pressure car wash
●Vehicles with rear view monitor sys-
tem: When washing the vehicle, do not spray the camera or its sur-rounding area directly with a high
pressure washer. Shock applied from high pressure water may cause the device to not operate
normally.
●Do not spray water directly on the
radar which is equipped behind the emblem. Otherwise it may cause the device to be damaged.
●Do not bring the nozzle tip close to boots (rubber or resin manufac-
tured cover), connectors or the fol- lowing parts. The parts may be damaged if they come into contact
with high-pressure water.
• Traction related parts
• Steering parts
• Suspension parts
• Brake parts
●Keep the cleaning nozzle at least 30 cm (11.9 in.) away from the vehi-
cles body. Otherwise resin section, such as moldings and bumpers, may be deformed and damaged.
Also, do not continuously hold the nozzle in the same place.
●Do not spray the lower part of the windshield continuously. If water enters the air conditioning system
intake located near the lower part of the windshield, the air conditioning system may not operate correctly.
●Do not wash the underside of the vehicle using a high pressure car
washer.

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6-2. Maintenance
6-2.Mainte nance
■Where to go for maintenance ser-
vice?
In order to maintain your vehicle in the best possible condition, Toyota recom-
mends that maintenance service opera- tions as well as other inspections and repairs be carried out by authorized
Toyota retailers or Toyota authorized repairers, or any reliable repairers. For repairs and services covered by your
warranty, please visit an authorized Toyota retailer or repairer, who will use genuine Toyota parts in repairing any
difficulties you may encounter. There can also be advantages in utilizing authorized Toyota retailers or repairers
for non-warranty repairs and services, as members of the Toyota network will be able to expertly assist you with any
difficulties you may encounter.
Your Toyota retailer or Toyota authorized
repairer, or any reliable repairer will per- form all of the scheduled maintenance on your vehicle reliably and economi-
cally due to their experience with Toyota vehicles.
Scheduled maintenance should be
performed at specified intervals
according to the maintenance
schedule.
For full details of your maintenance
schedule, read the “Toyota Service
Booklet” or “Toyota Warranty Booklet”.
What about do-it-yourself mainte-
nance?
Many of the maintenance items are
easy to do yourself if you have a little
mechanical ability and a few basic
automotive tools.
Note, however, that some maintenance
tasks require special tools and skills.
These are best performed by qualified
technicians. Even if you’re an experi-
enced do-it-yourself mechanic, we rec-
ommend that repairs and maintenance
be conducted by any authorized Toyota
retailer or Toyota authorized repairer, or
any reliable repairer. Any authorized
Toyota retailer or repairer will keep a
record of maintenance, which could be
useful should you ever require War-
ranty Service. Should you choose to
select a qualified and equipped profes-
sional other than an authorized Toyota
repairer to service or maintain your
vehicle, we recommend that you
Maintenance require-
ments
To ensure safe and economical
driving, day-to-day care and
regular maintenance are
essential. Toyota recommends
the maintenance below.
WARNING
■If your vehicle is not properly
maintained
Improper maintenance could result in serious damage to the vehicle and
possible death or serious injury.
■Handling of the 12-volt battery
12-volt battery posts, terminals and related accessories contain lead and
lead compounds which are known to cause brain damage. Wash your hands after handling. ( P.394)
Scheduled maintenance
Do-it-yourself maintenance

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6-3. Do-it-yourself maintenance
Maintenance and care
WARNING
●Keep hands, clothing and tools away from the moving fan.
●Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other flu-ids may also be hot.
●Do not leave anything that may burn easily, such as paper and
rags, in the engine compartment.
●Do not smoke, cause sparks or
expose an open flame to fuel or 12- volt battery. Fuel and 12-volt battery fumes are flammable.
●Be extremely cautious when work-ing on the 12-volt battery. It con-
tains poisonous 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 power switch is OFF.
With the power 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.393)
■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.

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6-3. Do-it-yourself maintenance
Maintenance and care
Check the radiator and condenser
and clear away any foreign objects.
If either of the above parts is
extremely dirty or you are not sure
of their condition, have your vehicle
inspected by any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
If the washer fluid level is at “1/2”,
add washer fluid.
NOTICE
■If you spill coolant
Be sure to wash it off with water to
prevent it from damaging parts or paint.
Checking the radiator and
condenser
WARNING
■When the hybrid system is hot
Do not touch the radiator or con-
denser as they may be hot and cause serious injuries, such as burns.
Adding the washer fluid
WARNING
■When adding washer fluid
Do not add washer fluid when the
hybrid system is hot or operating 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.

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6-3. Do-it-yourself maintenance
Maintenance and care
molded into the sidewall of each tire.
Replace the tires if the treadwear indi-
cators are showing on a tire.
■When to replace your vehicle’s tires
Tires should be replaced if:
●The treadwear indicators are showing on a tire.
●You have tire damage such as cuts, splits, cracks deep enough to expose
the fabric, and bulges indicating inter- nal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size or location of a cut or other damage
If you are not sure, consult with any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even if
it has seldom or never been used, or damage is not obvious.
■If the tread on snow tires wears down below 4 mm (0.16 in.)
The effectiveness of the tires as snow tires is lost.
■Checking the tire valves
When replacing the tires, check the tire
valves for deformation, cracks, and other damage.
Rotate the tires in the order shown.
WARNING
■When inspecting or replacing tires
Observe the following precautions to
prevent accidents. Failure to do so may cause damage to parts of the drivetrain as well as
dangerous handling characteristics, which may lead to an accident result-ing in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.Also, do not mix tires of remarkably
different treadwear.
●Do not use tire sizes other than
those recommended by Toyota.
●Do not mix differently constructed
tires (radial, bias-belted or bias-ply tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.Do not use tires if you do not know
how they were used previously.
NOTICE
■If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cushioning ability of the tires. In addi-
tion, driving on rough roads may cause damage to the tires them-selves, as well as the vehicle’s
wheels and body.
Tire rotation

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6-3. Do-it-yourself maintenance
computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large dis-play, airport or other facility that gen-
erates strong radio waves or electrical noise.• When carrying a portable radio, cellu-
lar phone, cordless phone or other wireless communication device.
●When the vehicle is parked, the time taken for the warning to start or go off could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the not to able detect.
■Warning performance of the tire pressure warning system
The warning of the tire pressure warning
system will change in accordance with driving conditions. For this reason, the system may give a warning even if the
tire pressure does not reach a low enough level, or if the pressure is higher than the pressure that was adjusted to
when the system was initialized.
When replacing tires or wheels, tire
pressure warning valves and trans-
mitters must also be installed.
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.403)
■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.
Installing tire pressure warn-
ing valves and transmitters
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, corrode the valve, and cause sticking and
air leaks.
●When replacing tire valve caps, do
not use tire valve caps other than those specified. The cap may become stuck.

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6-3. Do-it-yourself maintenance
Maintenance and care
●If ID code registration cannot be com-
pleted after performing the above pro- cedure, contact any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer.
Your vehicle is equipped with tire
pressure warning system with the
function to have ID codes regis-
tered for a second wheel set, for
example a winter set, by any autho-
rized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
After registration of a second wheel
set, either of these two wheel sets
can be selected for usage with the
tire pressure warning system.
■Operating conditions for the
function
 This function will perform the
change of wheel set only if a sec-
ond wheel set has been regis-
tered. If no second wheel set has
been registered, the ID cannot
be changed even if “Identifying
Each Wheel & Position” is
selected in the multi-information
display and waiting for 2 min-
utes.
 Only a change between both
registered wheel set is possible,
mixing between these wheel sets
is not supported.
■How to change between wheel
sets
1 Have the vehicle fitted with the
preferred wheel set.
2 Press / (7-inch display)
or / (4.2-inch display) of
the meter control switch to
select .
3 Press / (7-inch display)
or / (4.2-inch display) to
select “Vehicle Settings” and
then press .
4 Press / to select “TPWS
setting” and then press .
5 Press / to select “Identi-
fying Each Wheel & Position”.
Then press and hold until
the tire pressure warning light
blinks slowly 3 times. Afterward,
turns on after flashing for 1 min-
ute.
After 2 minutes, registration of a second
Selecting wheel set