Get For safety and security -> Hybrid system Guide for Toyota Avanza SUV Third Generation (2022-2026)

70

1-2. Hybrid system

Hybrid system features

Your vehicle is a hybrid vehicle. It has characteristics different

from conventional vehicles. Be sure you are closely familiar with

the characteristics of your vehicle, and operate it with care.

The hybrid system combines the use of a gasoline engine and

an electric motor (traction motor) according to driving condi-

tions, improving fuel efficiency and reducing exhaust emis-

sions.

The illustration is an example for explanation and may differ from the

actual item.

Gasoline engine

1

Electric motor (traction motor)

2

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1-2. Hybrid system

◆ When stopped/during start off

The gasoline engine stops when the vehicle is stopped. During

start off, the electric motor (traction motor) drives the vehicle. At

slow speeds or when traveling down a gentle slope, the engine is

stopped and the electric motor (traction motor) is used.

When the shift lever is in N, the hybrid battery (traction battery) is

not being charged.

1

When the hybrid battery (traction battery) requires charging or the engine

is warming up, etc., the gasoline engine will not automatically stop.

(→P. 72)

◆ During normal driving

The gasoline engine is predominantly used. The electric motor

(traction motor) charges the hybrid battery (traction battery) as nec-

essary.

◆ When accelerating sharply

When the accelerator pedal is depressed heavily, the power of the

hybrid battery (traction battery) is added to that of the gasoline

engine via the electric motor (traction motor).

◆ When braking (regenerative braking)

The wheel operates the electric motor (traction motor) as a power

generator, and the hybrid battery (traction battery) is charged.

Vehicle proximity notification system

When driving with the gasoline engine stopped, a sound, which

changes in accordance with the driving speed, will be played in order

to warn people nearby of the vehicle’s approach. The sound will stop

when the vehicle speed exceeds approximately 15 mph (25 km/h).

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1-2. Hybrid system

■Regenerative braking

In the following situations, kinetic energy is converted to electric energy and

deceleration force can be obtained in conjunction with the recharging of the

hybrid battery (traction battery).

●The accelerator pedal is released while driving with the shift lever in D or S.

●The brake pedal is depressed while driving with the shift lever in D or S.

■EV indicator

The EV indicator comes on when the

vehicle is driven using only the electric

motor (traction motor) or the gasoline

engine is stopped.

■Conditions in which the gasoline engine may not stop

The gasoline engine starts and stops automatically. However, it may not stop

automatically in the following conditions

●During gasoline engine warm-up

●During hybrid battery (traction battery) charging

●When the temperature of the hybrid battery (traction battery) is high or low

●When the heater is switched on

■Charging the hybrid battery (traction battery)

As the gasoline engine charges the hybrid battery (traction battery), the bat-

tery does not need to be charged from an outside source. However, if the

vehicle is left parked for a long time the hybrid battery will slowly discharge.

For this reason, be sure to drive the vehicle at least once every few months

for at least 30 minutes or 10 miles (16 km). If the hybrid battery becomes fully

discharged and you are unable to start the hybrid system, contact your Toyota

dealer.

■Charging the 12-volt battery

→P. 426

■After the 12-volt battery has discharged or when the terminal has been

removed and installed during exchange, etc.

The gasoline engine may not stop even if the vehicle is being driven by the

hybrid battery (traction battery). If this continues for a few days, contact your

Toyota dealer.

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1-2. Hybrid system

■Sounds and vibrations specific to a hybrid vehicle

There may be no engine sound or vibration even though the vehicle is able to

move with the “READY” indicator is illuminated. For safety, apply the parking

brake and make sure to shift the shift lever to P when parked.

The following sounds or vibrations may occur when the hybrid system is

operating and are not a malfunction

●Motor sounds may be heard from under the vehicle.

1

●Sounds may be heard from the hybrid battery (traction battery) behind the

rear seats when the hybrid system starts or stops.

●Relay operating sounds such as a snap or soft clank will be emitted from the

hybrid battery (traction battery), behind the rear seats, when the hybrid sys-

tem is started or stopped.

●Sounds from the hybrid system may be heard when the trunk lid is open.

●Sounds may be heard from the transmission when the gasoline engine

starts or stops, when driving at low speeds, or during idling.

●Engine sounds may be heard when accelerating sharply.

●Sounds may be heard due to regenerative braking when the brake pedal is

depressed or as the accelerator pedal is released.

●Operating sounds or motor sounds that occur when the brake pedal is oper-

ated.

●Vibration may be felt when the gasoline engine starts or stops.

●Cooling fan sounds may be heard from the air intake vents on the left side of

the rear seatback.

■Vehicle proximity notification system

In the following cases, the vehicle proximity notification system may be diffi-

cult for surrounding people to hear.

●In very noisy areas

●In the wind or the rain

Also, as the vehicle proximity notification system is installed on the front of

the vehicle, it may be more difficult to hear from the rear of the vehicle com-

pared to the front.

■Maintenance, repair, recycling, and disposal

Contact your Toyota dealer regarding maintenance, repair, recycling and dis-

posal. Do not dispose of the vehicle yourself.

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1-2. Hybrid system

Hybrid system precautions

Take care when handling the hybrid system, as it is a high volt-

age system (about 650 V 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.

The illustration is an example for explanation and may differ from the

actual item.

Air conditioning compressor

Service plug

1

2

5

6

7

Power control unit with DC/DC

converter

Electric motor (traction motor)

Caution label

High voltage cables (orange)

3

4

Hybrid battery (traction bat-

tery)

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1-2. Hybrid system

Hybrid battery (traction battery) air intake vent

There is an air intake vent on the

left side of the rear seatback for

the purpose of cooling the hybrid

battery (traction battery). If the

vent becomes blocked, the hybrid

battery may overheat, leading to a

reduction in hybrid battery output.

1

Emergency shut off system

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 activates, your vehicle will not restart.

To restart the hybrid system, contact your Toyota dealer.

Hybrid warning message

A message is automatically displayed 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

instructions. (→P. 407)

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1-2. Hybrid system

■If a warning light comes on, a warning 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 your Toyota dealer.

■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

warning light (→P. 401) go off. If there is only a small amount of fuel, the

hybrid system may not be able to start. (The standard amount of fuel about

3.0 gal. [11.3 L, 2.5 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 vehi-

cle is inclined.)

■Electromagnetic waves

●High voltage parts and cables on hybrid vehicles incorporate electromag-

netic shielding, and therefore emit approximately the same amount of elec-

tromagnetic waves as conventional gasoline powered vehicles or home

electronic appliances.

●Your vehicle may cause sound interference 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.

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1-2. Hybrid system

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.

1

●The hybrid system will become hot after starting as the system uses high

voltage. Be careful of both the high voltage and the high temperature, and

always obey the caution labels attached to the vehicle.

●Never try to open the service plug

access hole located behind the rear

seats. The service plug is used only

when the vehicle is serviced and is sub-

ject 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 system off.

●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 fluid leak occurs, do not touch the fluid as it may be strong alkaline

electrolyte from the hybrid battery (traction battery). If it comes into contact

with your skin or eyes, wash it off immediately with a large amount of water

or, if possible, boric acid solution. Seek immediate medical attention.

●If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.

Never use a fire extinguisher 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 front wheels 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. 394)

●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 possible.

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1-2. Hybrid system

WARNING

■Hybrid battery (traction battery)

●Never resell, hand over or modify the hybrid battery. To prevent accidents,

hybrid batteries that have been removed from a disposed vehicle are col-

lected through Toyota dealer. Do not dispose of the battery yourself.

Unless the battery is properly collected, the following may occur, resulting

in death or serious injury

• The hybrid battery may be illegally disposed of or dumped, and it is haz-

ardous 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

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.

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 without the hybrid battery having been

removed, there is a danger of serious 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 your

Toyota dealer or a qualified service shop. If the hybrid battery is not dis-

posed of properly, it may cause electric shock that can result in death or

serious injury.

NOTICE

■Hybrid battery air intake vent

●Do not place objects that will block the air intake vent. The hybrid battery

(traction battery) may overheat and be damaged.

●Clean the air intake vent regularly to prevent the hybrid battery (traction

battery) from overheating.

●Do not wet or allow foreign substances to enter the air intake vent as this

may cause a short circuit and damage the hybrid battery (traction battery).

●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 your Toyota dealer.

For safety and security -> Hybrid system for Your Toyota Avanza SUV Third Generation (2022-2026)

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