Get FEATURES ON NEW TOYOTA VEHICLE Toyota hybrid system Guide for Toyota Prius 4 Door Second Generation (2004-2009)

SECTION 1– 2

FEATURES ON NEW TOYOTA VEHICLE

Toyota hybrid system

Toyota hybrid systemm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Toyota hybrid system operating condition . . . . . . . . . . . . . . . . . . . . . . 10

Starting your vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

For efficient use of your vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Precautions for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

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Toyota hybrid system

operating condition

Toyota hybrid system

Toyota hybrid system combines a gaso-

line engine and electric motor power to

improve the fuel economy and minimize

the emissions as well as to provide

better power performance than the ordi-

nary gasoline−powered vehicles.

Basic operations are described below. Be-

sides, Toyota hybrid system performs vari-

ous controls depending on the operating

condition: The “Energy Monitor” screen

tells you which power is used currently.

Depending on the driving condition, the

vehicle runs on the best combination of;

ꢀ Gasoline engine power

ꢀ Electric motor power generated by

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the gasoline engine

ꢀ Electric motor power of the hybrid

battery

Furthermore, the energy is efficiently used

in the following ways:

ꢀ When stopping the vehicle, the gaso-

line engine is automatically stopped.

Electric power

in use

ꢀ When applying the brakes or decelerat-

ing, electricity is converted from the

turning force of the wheels and stored

in the hybrid battery. (This is called

regenerative brake.)

When starting or backing up, etc., the

vehicle runs on electric power from hybrid

battery, because the gasoline engine effi-

ciency is low.

Since the battery is charged by the

gasoline engine as needed, it does not

require charging from an outside

source like an electric vehicle.

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Gasoline power

in use

Electric and gasoline

power in use

Storing electric power

During normal driving, the vehicle runs

mainly on gasoline power. However, the

electric motor, using electric power gener-

ated by the gasoline engine, can supple-

ment the gasoline engine power.

When driving at full throttle, additional

electric power is applied from the hybrid

battery. Vehicle performance improves.

When decreasing speed or applying the

brakes, the turning force of the wheels

makes the electric motor operate as

a

generator and additional electricity is

stored in the hybrid battery (regenerative

brake).

The vehicle controls the optimum ratio of

the gasoline and electric power to help

use energy more efficiently.

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Starting your vehicle

Your vehicle is equipped with push but-

ton start system. The hybrid system

will start automatically by pressing the

“POWER” switch briefly with the brake

pedal depressed.

With smart function

1. Carry the key with you.

2. Press the “POWER” switch briefly with

the brake pedal depressed.

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Without smart function

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1. Insert the key.

2. Press the “POWER” switch briefly with

the brake pedal depressed.

The “READY” light flashes and stays on.

Two beeps sound after

a

few seconds,

and the hybrid system will start. (If the

ambient temperature is low such as during

winter, it may take time until the “READY”

light comes on.) You cannot start your

vehicle when the brake pedal is not de-

pressed. (For details, see “How to start

the hybrid system—” on page 348.)

Not in use

When stopping, the gasoline engine auto-

matically shuts off.

Charging hybrid battery

When the hybrid battery power is insuffi-

cient, the gasoline engine charges the hy-

brid battery. The system always supplies

electricity at a constant level.

The engine may not start even with the

“READY” light on.

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For efficient use of your

vehicle

Drive your vehicle with a smooth accel-

eration and deceleration.

When parking, be sure to put the hy-

brid transaxle in “P”. While driving, use

the hybrid transaxle in “D”.

INFORMATION:

The gasoline engine starts and stops

automatically. (It stops during

load driving, deceleration or when the

vehicle is stopped.)

ꢀ While driving, energy is recovered

through the regenerative brake as the

vehicle decelerates. However, for more

efficient use, do not accelerate or de-

celerate your vehicle more than neces-

sary.

a

low

ꢀ In “N”, the gasoline engine operates

but electricity cannot be generated. The

battery will be discharged requiring un-

necessary engine power to recharge.

If the “READY” light remains on, you

can start your vehicle using the electric

motor even with the gasoline engine

stopped.

ꢀ The hybrid system automatically re-

charges the hybrid battery when the

remaining battery power is reduced.

However, the charging is not available

if the hybrid transaxle is “N”.

ꢀ Avoid abrupt acceleration and decelera-

tion.

The gasoline engine may not stop auto-

matically in the following conditions:

ꢀ The remaining capacity of the hybrid

battery can be confirmed on the energy

monitor screen of the multi−information

display. See “Information” on page 166

for details. Gradual or non−abrupt ac-

celeration or deceleration will more ef-

fectively use the benefits of an electric

motor without having to use gasoline

engine power.

z During gasoline engine warm−up

z During hybrid battery charging

z During low or high hybrid battery

temperature

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Precautions for use

The vehicle runs in combination with

the gasoline and electric power. Pay

special attention to the following items.

Hybrid battery

These high voltage parts or cables

consisting of an electromagnetic

shielding structure produce relatively

the same amount of electromagnetic

waves as conventional gasoline−

fueled vehicles or home electric ap-

pliances.

Service

plug

Be careful of high voltage and high

temperature.

High voltage

cables

Your vehicle is equipped with the orange

colored cables connected to the hybrid

battery (about 200 V) and to other compo-

nents that are all high voltage.

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As unwanted noise may occur in the

reception of mobile radios, contact

your Toyota dealer for installation or

removal.

High volt-

age cables

CAUTION

Inverter unit

Electric motor

Air conditioning

compressor

Do not touch or come in contact with

orange cables or battery terminals.

Electric shock may cause serious in-

jury or death. Read all caution labels.

Always keep your hybrid vehicle’s driv-

ing characteristics in mind.

Do not touch the service plug.

The service plug is installed in the left

side trim of the luggage compartment. It

is provided to disable high voltage current

from the hybrid battery when the vehicle

is in need of repairs at your

dealer.

CAUTION

An electric motor, coolant radiator and

some other parts reach high temperature

while driving. Caution labels are applied to

these parts. Carefully observe the instruc-

tions on these caution labels.

The driver should pay full attention

around the vehicle especially when it

is driven only by the electric motor

(with the gasoline engine stopped).

People in the immediate area might

misjudge the hybrid vehicle move-

ment based on the absence of the

regular engine noise.

Toyota

CAUTION

ꢀ The shaded parts in the illustration

are subjected to high voltage.

Never remove or disassemble any

high voltage part, high voltage cables

(orange color) and their connectors.

It may cause death or serious injury.

ꢀ Inappropriate handling may cause

an electric shock resulting in seri-

ous injury or death. Never touch

any item in shaded area.

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ꢀ As the vehicle runs with both the gaso-

line engine and electric motor, you may

hear a motor sound coming from the

engine compartment.

When you leave your vehicle, apply the

parking brake to put the hybrid trans-

axle in “P” and be sure to carry the

key with you and lock all the doors.

CAUTION

ꢀ When you leave your vehicle, be

sure to shut off the hybrid system.

ꢀ When the hybrid system is started or

stopped, you may hear a sound coming

from the hybrid battery in the luggage

compartment. However, this does not

indicate any trouble.

If you leave the hybrid system in “ACC”

or “IG−ON”, the hybrid system may not

start because the 12 volt battery will be

discharged.

ꢀ Be sure to put the hybrid transaxle

in “P” because the vehicle can start

with the “READY” light on and the

engine stopped (no engine sound

and vibration). When the “READY”

light is on, if you leave your ve-

hicle in shift position other than

“P” and “N”, the vehicle will creep

and start abruptly with the accelera-

tor pedal being depressed by mis-

take. This may cause death or seri-

ous injury.

If the vehicle is parked for a long time,

the hybrid battery will discharge gradually.

To keep the hybrid battery in good condi-

tion, drive the vehicle at least once every

several months for at least 30 minutes or

ten miles. If the hybrid battery becomes

fully discharged and the vehicle will not

start even with a jump−start to the 12 volt

battery, contact your Toyota dealer.

ꢀ If the “READY” light is on, you can

start even though the gasoline engine

may be off.

ꢀ When you shift the shift lever to “B”

and release it to its original position

and your foot from the accelerator ped-

al, engine braking will be applied. How-

ever, during high speed driving you

may feel that deceleration by engine

braking is less than that of ordinary

vehicle.

Be sure to put the hybrid transaxle in

“P” when parking.

In “N”, the hybrid battery assembly is not

charged, even if the gasoline engine is

operating. You cannot run your vehicle if

the hybrid transaxle is left in “N” for a

long time because the hybrid battery as-

sembly will be discharged.

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When the multi−information display

shows this message, the master warn-

ing light ( ) comes on in the instru-

ment cluster. Read the message and

follow the instruction.

ꢀ When you leave your vehicle, or stop

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or park for

a

while, put the hybrid

transaxle in “P”.

ꢀ Charging is necessary. In “N”, charging

will not be applied. The electric genera-

tor operates in “P”, “D” or “B”. If you

continue driving, put the hybrid trans-

axle in “D” or “B” and depress the

accelerator pedal. Do not leave the hy-

brid transaxle in “N”. When driving in

traffic jam, operate in “D”.

Type 1

Do not allow anyone to lean against the

side of the rear right seatback, nor put

any luggage or other obstructions on it.

ꢀ An air vent is provided on the side of

the rear right seatback to cool the hy-

brid battery. If this vent is covered, the

hybrid battery will overheat resulting in

a reduction of the output performance

of the hybrid system.

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ꢀ The seat belt not properly set in the

guide on the top of the rear seat may

block the air vent. Be sure to pass the

seat belt through the guide properly.

Type 2

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ꢀ Do not wet or put foreign objects over

the air vent. Otherwise, the hybrid bat-

tery may be adversely affected and be

damaged.

ꢀ If the fluid leaks or gets in some

part of the vehicle, never touch it

because it may be electrolyte

(strong alkali) from the hybrid bat-

tery. If it gets on your skin or eyes,

wash off immediately with a large

amount of water, if possible, with

boric acid solution, and get immedi-

ate medical attention in order to

help avoid serious injury.

CAUTION

If you are involved in an accident,

follow these precautions.

ꢀ You may hear a cooling fan noise from

ꢀ Move the vehicle to a safe place

and perform the followings to re-

duce the risk of high voltage elec-

tricity leakage.

the air vent.

For vehicle repairs or maintenance, be

sure to consult your Toyota dealer.

If your vehicle is beyond repair because

of accident or something, be sure to

consult your Toyota dealer.

ꢀ Depress the brake pedal and apply

the parking brake.

ꢀ If a vehicle fire occurs, extinguish

it using a fire extinguisher for the

exclusive use on electric fires. As

a small amount of water may be

dangerous, use a large amount of

water, for example from a fire hy-

ꢀ Press the “P” position switch and

stop the hybrid system.

As sealed Nickel−Metal hydride batteries

are used, be sure to consult your Toyota

dealer when disposing of your vehicle.

ꢀ If the key is inserted into key slot,

remove it.

ꢀ If your vehicle has experienced ma-

jor damage, you may get an electric

shock. To prevent this, never touch

the high voltage parts (hybrid bat-

tery assembly, etc.) or cables

(orange color) connecting these

parts. If some exposed electric

wires are protruding inside or out-

side of the vehicle, an electric

shock may also occur. Never touch

them.

drant, or wait for

team arrival.

a

fire−fighting

ꢀ If your vehicle needs to be towed,

do it with the front wheels or all

four wheels raised. If the front

wheels are on the ground when

towing, the electric motor may con-

tinue to generate electricity which

could leak electricity. A fire could

occur depending on the degree of

damage. See “If your vehicle needs

to be towed” on page 372.

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FEATURES ON NEW TOYOTA VEHICLE Toyota hybrid system for Your Toyota Prius 4 Door Second Generation (2004-2009)

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