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5328-2. Steps to take in an emergency
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The warning lights and warning buzzers operate as follows depending
on the content of the message. If a message indicates the need for
inspection by a dealer, have the vehicle inspected by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer
immediately.
*: A buzzer sounds the first time a message is shown on the multi-information
display.
Messages and warnings
System
warning
light
Warning
buzzer*Warning
Comes on—Sounds
Indicates an important situation, such as
when a system related to driving is mal-
functioning or that danger may result if
the correction procedure is not per-
formed
—
Comes
on or
flashesSounds
Indicates an important situation, such as
when the systems shown on the multi-
information display may be malfunction-
ing
Flashes—Sounds
Indicates a situation, such as when
damage to the vehicle or danger may
result
Comes on—Dose not
sound
Indicates a condition, such as malfunc-
tion of electrical components, their con-
dition, or indicates the need for
maintenance
Flashes—Dose not
sound
Indicates a situation, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly
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5338-2. Steps to take in an emergency
8
When trouble arises
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■Warning messages
The warning messages explained below may differ from the actual
messages according to operation conditions and vehicle specifica-
tions.
■If “Visit your dealer” is shown
The system or part shown on the multi-information display is mal-
functioning.
Have the vehicle inspected by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
■If a message about an operation is shown
● If a message about an operation of the power switch is shown
An instruction for operation of the power switch is shown when
the incorrect procedure for starting the engine is performed or the
power switch is operated incorrectly. Follow the instructions
shown on the multi-information display to operate the power
switch again.
● If a message about a shift lever operation is shown
To prevent the shift lever from being operated incorrectly or the
vehicle from moving unexpectedly, a message that requires shift-
ing the shift lever may be shown on the multi-information display.
In that case, follow the instruction of the message and shift the
shift lever.
● If a message or image about an open/close state of a part or
replenishment of a consumable is shown
Confirm the part indicated by the multi-information display or a
warning light, and then perform the coping method such as clos-
ing the open door or replenishing a consumable.
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5548-2. Steps to take in an emergency
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WARNING
■Driving to spread the liquid sealant evenly
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or
serious injury.
● Drive the vehicle carefully at a low speed. Be especially careful when turn-
ing and cornering.
● If the vehicle does not drive straight or you feel a pull through the steering
wheel, stop the vehicle and check the following.
• Tire condition. The tire may have separated from the wheel.
• Tire inflation pressure. If the tire inflation pressure is 130 kPa (1.3 kgf/cm2
or bar, 19 psi) or less, the tire may be severely damaged.
NOTICE
■ When performing an emergency repair
● A tire should only be repaired with the emergency tire puncture repair kit if
the damage is caused by a sharp object such as nail or screw passing
through the tire tread.
Do not remove the sharp object from the tire. Removing the object may
widen the opening and disenable emergenc y repair with the repair kit.
● The repair kit is not waterproof. Make sure that the repair kit is not
exposed to water, such as when it is being used in the rain.
● Do not put the repair kit directly onto dusty ground such as sand at the
side of the road. If the repair kit vacuums up dust etc., a malfunction may
occur.
● Do not turn the bottle upside down when using it, as doing so may cause
damage to the compressor.
Page 579 of 632

5798-2. Steps to take in an emergency
8
When trouble arises
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■ Precautions when the 12-volt battery is discharged (vehicles with a
smart entry & start system)
● In some cases, it may not be possible to unlock the doors using entry func-
tion of the smart entry & start system immediately after the 12-volt battery
has been disconnected and reconnected. Use the wireless remote control
or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged.
Before disconnecting the 12-volt battery, turn the power switch off. If the
power switch was in ACCESSORY or ON mode before the 12-volt battery
was discharged, the audio system and/or air conditioning system may oper-
ate when the 12-volt battery is reconnected.
WARNING
■ Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the 12-volt battery:
● Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with anything other than the intended ter-
minal.
● Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
● Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open flame near
the 12-volt battery.
■ After recharging the 12-volt battery
Have the 12-volt battery inspected at any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer as soon as possible. If
the 12-volt battery is deteriorating, continued use may cause the 12-volt
battery to emit a malodorous gas, whic h may be detrimental to the health of
passengers.
Page 582 of 632
5828-2. Steps to take in an emergency
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■If the high engine coolant temperature warning light comes on
or flashes
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor 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.
The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL”
“LOW”
Radiator cap
Correction procedures
1
2
3
1
2
4
1
2
3
4
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5838-2. Steps to take in an emergency
8
When trouble arises
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Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
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 immedi-
ately 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 condi-
tioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the hybrid system immediately and contact any authorized
Toyota retailer or Toyota authorized 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.
5
6
7
Page 609 of 632
6099-2. Customization
9
Vehicle specifications
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■Automatic air conditioning system ( P. 386)
FunctionDefault
setting
Customized
setting
Air conditioning control of Eco
drive mode ON OFF — O O
WARNING
■ During customization
As the hybrid system needs to be operating during customization, ensure
that the vehicle is parked in a place with adequate ventilation. In a closed
area such as a garage, exhaust gases including harmful carbon monoxide
(CO) may collect and enter the vehicle. This may lead to death or a serious
health hazard.
NOTICE
■ During customization
To prevent 12-volt battery discharge, ens ure that the hybrid system is oper-
ating while customizing features.
123
Page 612 of 632

612What to do if... (Troubleshooting)
YARIS_HV_OM_Europe_OM52J66E
What to do if... (Troubleshooting)
●If you lose your keys, new genuine keys can be made by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
( P. 143)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immediately. ( P. 151)
●Is the key battery weak or depleted? (P. 477)
●Vehicles with a smart entry & start system:
Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( P. 222)
●Vehicles with a smart entry & start system:
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. ( P. 143, 168)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. ( P. 157)
If you have a problem, check the following before contacting any
authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened