TOYOTA YARIS CROSS 2023 Manual Online

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1-4. Hybrid system
For safety and security
The illustration is an example for explanation and may differ from the actual item.
Warning label
Service plug
Rear inverter*
Rear electric motor (traction motor)*
Hybrid battery (traction battery)
High voltage cables (orange)
Front electric motor (traction motor)
Air conditioning compressor
Hybrid system precautions
Take care when handling the hybrid system, as it is a high volt age
system (about 580V at maximum) as well as contains parts that
become extremely hot when the hybrid system is operating. Obey
the warning labels attached to the vehicle.
System components

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1-4. Hybrid system
Power control unit
*: AWD models only
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started,
refuel the vehicle with at least enough gasoline to make the low fuel level warn-ing light ( P.438) go off. If there is only
a small amount of fuel, the hybrid sys- tem may not be able to start. (The stan-dard amount of fuel is about 6.3 L [1.7
gal., 1.4 Imp. gal.] when the vehicle is on a level surface. This value may vary when the vehicle is on a slope. Add
extra fuel when the vehicle is inclined.)
■Electromagnetic waves
●High voltage parts and cables on
hybrid electric vehicles incorporate electromagnetic shielding, and there-fore emit approximately the same
amount of electromagnetic waves as conventional gasoline powered vehi-cles or home electronic appliances.
●Your vehicle may cause sound inter-ference in some third party-produced
radio parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has
a limited service life. The lifespan of the hybrid battery (traction battery) can change in accordance with driving style
and driving conditions.
■Starting the hybrid system in an extremely cold environment
When the hybrid battery (traction bat-
tery) is extremely cold (below approxi- mately -30°C [-22°F]) under the influence of the outside temperature, it
may not be possible to start the hybrid system. In this case, try to start the hybrid system again after the tempera-
ture of the hybrid battery increases due to the outside temperature increase etc.
■Declaration of conformity
This model conforms to hydrogen emis-
sions according to regulation ECE100
(Battery electric vehicle safety).
WARNING
■High voltage precautions
This vehicle has high voltage DC and AC systems as well as a 12-volt sys-tem. DC and AC high voltage is very
dangerous and can cause severe burns and electric shock that may result in death or serious injury.
●Never touch, disassemble, remove or replace the high voltage parts,
cables or their connectors.
●The hybrid system will become hot
after starting as the system uses high voltage. Be careful of both the high voltage and the high tempera-
ture, and always obey the warning labels attached to the vehicle.
●Never try to open the service plug access hole located under the left side of the rear seat. The service
plug is used only when the vehicle is serviced and is subject to high voltage.
■Road accident cautions
Observe the following precautions to
reduce the risk of death or serious injury:
●Pull your vehicle off the road, apply the parking brake, shift the shift lever to P, and turn the hybrid sys-
tem off.

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1-4. Hybrid system
For safety and security
WARNING
●Do not touch the high voltage parts, cables and connectors.
●If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
●If a fire occurs in the hybrid electric vehicle, leave the vehicle as soon as possible. Never use a fire extin-
guisher that is not meant for electric fires. Using even a small amount of water may be dangerous.
●If your vehicle needs to be towed, do so with the front wheels (2WD
models) or four wheels (AWD mod- els) raised. If the wheels connected to the electric motor (traction motor)
are on the ground when towing, the motor may continue to generate electricity. This may cause a fire.
( P.429)
●Carefully inspect the ground under
the vehicle. If you find that liquid has leaked onto the ground, the fuel system may have been damaged.
Leave the vehicle as soon as possi- ble.
●Do not touch the battery if liquid is leaking from or adhering to it. If electrolyte (carbonate ester-based
organic electrolyte) from the hybrid battery (traction battery) comes into contact with the eyes or skin, it
could cause blindness or skin wounds. In the unlikely event that it comes into contact with the eyes or
skin, wash it off immediately with a large amount of water, and seek immediate medical attention.
●If electrolyte is leaking from the hybrid battery (traction battery), do not approach the vehicle. Even in
the unlikely event that the hybrid battery (traction battery) is dam-aged, the internal construction of
the battery will prevent a large amount of electrolyte from leaking out. However, any electrolyte that
does leak out will give off a vapor. This vapor is an irritant to skin and eyes and could cause acute poi-
soning if inhaled.
●Do not bring burning or high-tem-
perature items close to the electro- lyte. The electrolyte may ignite and cause a fire.
■Hybrid battery (traction battery)
●Your vehicle contains a sealed lith-
ium-ion battery.
●Never resell, hand over or modify
the hybrid battery. To prevent acci- dents, hybrid batteries that have been removed from a disposed
vehicle are collected through any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer. Do not dispose of the bat- tery yourself.
Unless the battery is properly col-
lected, the following may occur,
resulting in death or serious injury:
• The hybrid battery may be illegally disposed of or dumped, and it is
hazardous to the environment or someone may touch a high voltage part, resulting in an electric shock.
• The hybrid battery is intended to be used exclusively with your hybrid
electric vehicle. If the hybrid battery is used outside of your vehicle or modified in any way, accidents such
as electric shock, heat generation, smoke generation, an explosion and electrolyte leakage may occur.

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1-4. Hybrid system
There is an air intake vent under
the left side of the rear seat for the
purpose of cooling the hybrid bat-
tery (traction battery). If the vent
becomes blocked, the hybrid bat-
tery (traction battery) input and out-
put may be reduced.
When a certain level of impact is
detected by the impact sensor, the
emergency shut off system blocks
the high voltage current and stops
the fuel pump to minimize the risk
of electrocution and fuel leakage. If
the emergency shut off system acti-
WARNING
When reselling or handing over your vehicle, the possibility of an accident
is extremely high because the person receiving the vehicle may not be aware of these dangers.
●If your vehicle is disposed of with-out the hybrid battery having been
removed, there is a danger of seri- ous electric shock if high voltage parts, cables and their connectors
are touched. In the event that your vehicle must be disposed of, the hybrid battery must be disposed of
by any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer. If the hybrid bat-
tery is not disposed of properly, it may cause electric shock that can result in death or serious injury.
NOTICE
■Hybrid battery (traction battery) air intake vent
Do not carry large amounts of water such as water cooler bottles in the vehicle. If water spills onto the hybrid
battery (traction battery), the battery may be damaged. Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
Hybrid battery (traction bat-
tery) air intake vent
NOTICE
■Hybrid battery (traction battery) air intake vent
●Make sure that the air intake vent is not blocked, such as by a seat cover, plastic cover, or luggage. If
the vent is blocked, the hybrid bat- tery (traction battery) input and out-put may be restricted, possibly
leading to a malfunction.
●Clean the air intake vent regularly
to prevent the hybrid battery (trac- tion battery) from overheating.
●Do not get water or foreign materi-als in the air intake vent as this may cause a short circuit and damage
the hybrid battery (traction battery).
●A filter is installed to the air intake
vent. When the filter remains noticeably dirty even after cleaning the air intake vent, filter cleaning or
replacement is recommended. Refer to P.406 for details on how to clean the filters.
Emergency shut off system

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1-4. Hybrid system
For safety and security
vates, your vehicle will not restart.
To restart the hybrid system, con-
tact any authorized Toyota retailer
or Toyota authorized repairer, or
any reliable repairer.
A message is automatically dis-
played when a malfunction occurs
in the hybrid system or an improper
operation is attempted.
If a warning message is shown on
the multi-information display, read
the message and follow the instruc-
tions.
■If a warning light comes on, a warn- ing message is displayed, or the 12-volt battery is disconnected
The hybrid system may not start. In this case, try to start the system again. If the “READY” indicator does not come on,
contact any authorized Toyota retailer or Toyota authorized repairer, or any reli-able repairer.
Hybrid warning message

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1-5. Theft deterrent system
1-5.Theft de terre nt sys te m
Vehicles without a smart entry &
start system
The indicator light flashes after the
key has been removed from the
power switch to indicate that the
system is operating.
The indicator light stops flashing
after the registered key has been
inserted into the power switch to
indicate that the system has been
canceled.
Vehicles with a smart entry &
start system
The indicator light flashes after the
power switch has been turned off to
indicate that the system is operat-
ing.
The indicator light stops flashing
after the power switch has been
turned to ACC or ON to indicate
that the system has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions that may cause the sys-
tem to malfunction
●If the grip portion of the key is in con-
tact with a metallic object
●If the key is in close proximity to or
touching a key to the security system (key with a built-in transponder chip) of another vehicle
■Certifications for the immobilizer
system
 P. 5 2 7
Immobilizer system
The vehicle’s keys have built-
in transponder chips that pre-
vent the hybrid system from
starting if a key has not been
previously registered in the
vehicle’s on-board computer.
Never leave the keys inside the
vehicle when you leave the
vehicle.
This system is designed to
help prevent vehicle theft but
does not guarantee absolute
security against all vehicle
thefts.
Operating the system
NOTICE
■To ensure the system operates
correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

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1-5. Theft deterrent system
For safety and security
*: If equipped
■Setting
Turn the power switch off, have all
the passengers exit the vehicle and
ensure that all the doors are closed.
Using the entry function (if
equipped): Touch the sensor area
on the outside door handle twice
within 5 seconds.
Using the wireless remote control:
Press twice within 5 seconds.
■Canceling
Using the entry function (if
equipped): Hold the outside door
handle.
Using the wireless remote control:
Press .
Using power back door (if
equipped): Using wireless remote
control ( P.142), or using Hands
Free Power Back Door ( P. 1 4 4 ) .
Double locking system*
Unauthorized access to the
vehicle is prevented by dis-
abling the door unlocking
function from both the interior
and exterior of the vehicle.
Vehicles employing this sys-
tem have labels on the window
glass of both front doors.
Setting/canceling the double
locking system
WARNING
■Double locking system precau- tion
Never activate the double locking sys-
tem when there are people in the vehicle because all the doors cannot be opened from inside the vehicle.

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1-5. Theft deterrent system
*: If equipped
■Items to check before locking
the vehicle
To prevent unexpected triggering of
the alarm and vehicle theft, make
sure of the following:
 Nobody is in the vehicle.
 The windows are closed before
the alarm is set.
 No valuables or other personal
items are left in the vehicle.
■Setting
Close the door and hood, and lock
all the doors using the entry func-
tion (if equipped) or wireless
remote control. The system will set
automatically after 30 seconds.
The indicator light changes from being
on to flashing when the system is set.
■Canceling or stopping
Do one of the following to deacti-
vate or stop the alarms:
 Unlock the doors using the entry
function (if equipped) or wireless
remote control.
 Starting the hybrid system. (The
alarm will be deactivated or
stopped after a few seconds.)
■Setting the alarm
The alarm can be set if all the doors are closed even with the hood open.
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Triggering of the alarm
The alarm may be triggered in the fol-
lowing situations: (Stopping the alarm deactivates the alarm system.)
●The doors are unlocked using the key or the mechanical key.
Alarm*
The alarm uses light and
sound to give an alert when an
intrusion is detected.
The alarm is triggered in the
following situations when the
alarm is set:
 A locked door is unlocked or
opened in any way other than
using the entry function (if
equipped) or wireless remote
control. (The doors will lock
again automatically.)
 The hood is opened.
Setting/canceling/stopping
the alarm system

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1-5. Theft deterrent system
For safety and security
●A person inside the vehicle opens a
door or hood, or unlocks the vehicle.
●The 12-volt battery is recharged or
replaced when the vehicle is locked. ( P.474)
■Alarm-operated door lock
In the following cases, depending on the situation, the door may automatically
lock to prevent improper entry into the vehicle:
●When a person remaining in the vehi-cle unlocks the door and the alarm is activated.
●While the alarm is activated, a person remaining in the vehicle unlocks the
door.
●When recharging or replacing the 12-
volt battery
■Customization
Some functions can be customized. ( P.494)
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of the system cannot be
guaranteed.

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1-5. Theft deterrent system