cooling TOYOTA YARIS 2022 User Guide

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HV Owner's Manual_Europe_M52N30_en
7-2. Steps to take in an emergency
●If “Low Auxiliary Battery” is shown,
• When the display goes off after sev- eral seconds (displays for about 6 seconds): Maintain the hybrid system
operation for more than 15 minutes and charge the 12-volt battery.• When the display does not go off:
Start up the hybrid system using the procedures: P.409
●If “Maintenance Required for Traction Battery Cooling Parts See Owner’s Manual” is shown, the filters may be
clogged, the air intake vents may be blocked, or there may be a gap in the duct. Therefore, perform the following
correction procedure. • If the air intake vents and filters of the hybrid battery (traction battery) are
dirty, perform the procedure on P.348 to clean them.• If the warning message is shown
when the air intake vents and filters of the hybrid battery (traction battery) are not dirty, have the vehicle inspected
by any authorized Toyota retailer or Toyota authorized repairer, or any reli-able repairer immediately.
If you have a flat tire
(vehicles with an emer-
gency tire puncture
repair kit)
Your vehicle is not equipped
with a spare tire, but instead is
equipped with an emergency
tire puncture repair kit.
A puncture caused by a nail or
screw passing through the tire
tread can be repaired tempo-
rarily using the emergency tire
puncture repair kit. (The kit
contains a bottle of sealant.
The sealant can be used only
once to temporarily repair one
tire without removing the nail
or screw from the tire.)
Depending on the damage, this
kit cannot be used to repair the
tire. ( P.387)
After temporarily repairing the
tire with the kit, have the tire
repaired or replaced by any
authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer. Repairs
conducted using the emer-
gency tire puncture repair kit
are only a temporary measure.
Have the tire repaired and
replaced as soon as possible.

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7-2. Steps to take in an emergency
If the engine coolant temperature
gauge enters the red zone or
“Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the multi-
information display
1 Stop the vehicle in a safe place
and turn off the air conditioning
system, and then stop the hybrid
system.
2 If you see steam: Carefully lift
the hood after the steam sub-
sides.
If you do not see steam: Care-
fully lift the hood.
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entangled in the cooling fan, etc.
■To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-
volt battery from another vehicle in an emergency. It cannot be used to jump start another vehicle.
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The engine coolant tempera-
ture gauge ( P.94, 99) is in
the red zone or a loss of hybrid
system power is experienced.
(For example, the vehicle
speed does not increase.)
 “Engine Coolant Temp High
Stop in a Safe Place See
Owner’s Manual” or “Hybrid
System Overheated Output
Power Reduced” is shown on
the multi-information display.
 Steam comes out from under
the hood.
Correction procedures

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HV Owner's Manual_Europe_M52N30_en
7-2. Steps to take in an emergency
When trouble arises
3After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
4 The coolant level is satisfactory
if it is between the “F” and “L”
lines on the reservoir.
Reservoir
“F” line
“L” line
5 Add coolant if necessary.
Water can be used in an emergency if
coolant is unavailable.
6 Start the hybrid system and turn
the air conditioning system on to
check that the radiator cooling
fan operates and to check for
coolant leaks from the radiator
or hoses.
The fan operates when the air condi- tioning system is turned on immediately
after a cold start. Confirm that the fan is operating by checking the fan sound and air flow. If it is difficult to check
these, turn the air conditioning system on and off repeatedly. (The fan may not operate in freezing temperatures.)
7 If the fan is not operating: Stop
the hybrid system immediately
and contact any authorized
Toyota retailer or Toyota autho-
rized repairer, or any reliable
repairer.
If the fan is operating: Have the
vehicle inspected at the nearest
any authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer.
If “Hybrid System Overheated
Output Power Reduced” is
shown on the multi-information
display
1 Stop the vehicle in a safe place.

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HV Owner's Manual_Europe_M52N30_en
7-2. Steps to take in an emergency
2Stop the hybrid system and
carefully lift the hood.
3 After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) for
any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
4 The coolant level is satisfactory
if it is between the “F” or “L”
lines on the reservoir.
Reservoir
“F” line
“L” line
5 Add coolant if necessary.
If water was added in an emergency, have the vehicle inspected at any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer as soon as possible.
6 After stopping the hybrid system
and waiting for 5 minutes or
more, start the hybrid system
again and check for the multi-
information display.
If the message does not disap-
pear: Stop the hybrid system
and contact any authorized
Toyota retailer or Toyota autho-
rized repairer, or any reliable
repairer.
If the message is not displayed:
The hybrid system temperature
has dropped and the vehicle
may be driven normally.
However, if the message appears again
frequently, contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
WARNING
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.

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HV Owner's Manual_Europe_M52N30_en
7-2. Steps to take in an emergency
When trouble arises
1Stop the hybrid system. Set the
parking brake and shift the shift
lever to P.
2 Remove the mud, snow or sand
from around the front wheels.
3 Place wood, stones or some
other material under the front
wheels to help provide traction.
4 Restart the hybrid system.
5 Shift the shift lever to D or R and
release the parking brake. Then,
while exercising caution,
depress the accelerator pedal.
■When it is difficult to free the vehi-
cle
Press the switch to turn off TRC.
A message will be shown on the multi-
information display.
WARNING
●If steam is seen coming from under the hood, do not open the hood
until the steam has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned off, check that the “READY”
indicator is off. When the hybrid system is operating, the gasoline engine may automatically start, or
the cooling fan may suddenly oper- ate even if the gasoline engine stops. Do not touch or approach
rotating parts such as the fan, which may lead to fingers or cloth-ing (especially a tie, a scarf or a
muffler) getting caught, resulting in serious injury.
●Do not loosen the coolant reservoir caps while the hybrid system and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine/power con-trol unit coolant
Add coolant slowly after the hybrid
system has cooled down sufficiently. Adding cool coolant to a hot hybrid system too quickly can cause dam-
age to the hybrid system.
■To prevent damage to the cooling
system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
If the vehicle becomes
stuck
Carry out the following proce-
dures if the tires spin or the
vehicle becomes stuck in mud,
dirt or snow:
Recovering procedure

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8-1. Specifications
Vehicle specifications
Cooling system
Capacity
(Reference)
Gasoline
engine
Right-hand drive vehicles
5.11 L (5.4 qt., 4.5 Imp. qt.)
Left-hand drive vehicles
5.09 L (5.4 qt., 4.5 Imp. qt.)
Power con-
trol unit1.3 L (1.4 qt., 1.1 Imp. qt.)
Coolant type
Use either of the following:
 “Toyota Super Long Life Coolant”
 Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO FC16HR-Q8
NGK DILKAR6T8
Gap0.8 mm (0.031 in.)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system (12-volt battery)
Open voltage at 20°C (68°F):
12.0 V or higher
(Turn the power switch off and turn on the high
beam headlights for 30 seconds.)
Charging rates
Quick charge
Slow charge
15 A max.
5 A max.

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Alphabetical Index
Brightness control
Instrument panel light control98, 103
BSM (Blind Spot Monitor) ............ 248
Enabling/disabling the Blind Spot
Monitor..................................... 250
C
Care ....................................... 312, 315
Aluminum wheels ....................... 312
Exterior....................................... 312
Interior ........................................ 315
Seat belts ................................... 315
Cargo and luggage ....................... 166
Chains ........................................... 285
Child restraint system .................... 47
Points to remember...................... 47
Riding with children ...................... 46
Child safety ..................................... 46
12-volt battery precautions. 331, 413
Airbag precautions ....................... 41
Child restraint system .................. 47
Heated steering wheel and seat
heater precautions ................... 293
How your child should wear the seat
belt ............................................. 34
Installing child restraints............... 47
Power window lock switch ......... 158
Power window precautions ........ 157
Rear door child-protectors ......... 137
Removed electronic key battery pre-
cautions ................................... 354
Seat belt precautions ................... 46
Child-protectors............................ 137
Cleaning ................................ 312, 315
Aluminum wheels ....................... 312
Exterior....................................... 312
Interior ........................................ 315
Radar sensor ............................. 205
Seat belts ................................... 315
Clock ............................ 94, 97, 99, 102
Coat hooks .................................... 308
Condenser ..................................... 329
Console box .................................. 299
Consumption screen .................... 120
Cooling system .............................327
Engine overheating .................... 414
Hybrid system overheating......... 414
Cruise control
Dynamic radar cruise control with
full-speed range .......................230
Cup holders ...................................298
Current fuel consumption .... 105, 110
Curtain shield airbags ....................36
Customizable features ................. 431
D
Daytime running light system ..... 190
Deck board .................................... 299
Defogger
Outside rear view mirrors ........... 290
Rear window .............................. 290
Windshield.................................. 290
Dimensions ...................................420
Display
Consumption screen ..................120
Dynamic radar cruise control with
full-speed range .......................230
Energy monitor ........................... 120
Head-up display ......................... 116
LTA (Lane Tracing Assist)........... 225
Multi-information display ....103, 109
Speed limiter .............................. 242
Toyota parking assist-sensor...... 253
Warning message ...................... 383
Display change button ...........96, 101
Distance until next engine oil change
...............................................97, 101
Do-it-yourself maintenance ......... 318
Door
Double locking system ................. 85