Toyota Sienna Hybrid (2023 year). Manual in english - page 5

P.112)

■

Conditions in which the gaso-

line 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 bat-

tery) charging

●

When the temperature of the

hybrid battery (traction battery) is

high or low

●

When the heater is switched on

: Depending on the circumstances,

the gasoline engine may also not
stop automatically in other situa-
tions.

■

Charging the hybrid battery

(traction battery)

As the gasoline engine charges the

hybrid battery (traction battery), the

battery does not need to be charged

from an outside source. However, if

the vehicle is left parked for a long

time the hybrid battery (traction bat-

tery) 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 (traction

battery) becomes fully discharged

and you are unable to start the

1-4. Hybrid system

For
safety and secu

rity

hybrid system, contact your Toyota

dealer.

■

Charging the 12-volt battery

P.506

■

After the 12-volt battery has dis-

charged 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, con-

tact your Toyota dealer.

■

Sounds and vibrations specific

to a Hybrid Electric Vehicle

There may be no engine sound or

vibration even though the vehicle is

able to move with the “READY” indi-

cator is illuminated. For safety,

make sure to shift the shift lever to P

and apply the parking brake when

parked.
The following sounds or vibrations

may occur when the hybrid system

is operating and are not a malfunc-

tion:

●

Motor sounds may be heard from

the engine compartment.

●

Sounds may be heard from the

hybrid battery (traction battery)

under the front 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), under the front seats,

when the hybrid system is started

or stopped.

●

Sounds from the hybrid system

may be heard when the back door

is open.

●

Sounds may be heard from the

transmission when the gasoline

engine starts or stops, when driv-

ing 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.

●

Vibration may be felt when the

gasoline engine starts or stops.

●

Cooling fan sounds may be heard

from the air intake vent under the

front seat.

■

Maintenance, repair, recycling,

and disposal

Contact your Toyota dealer regard-

ing maintenance, repair, recycling

and disposal. Do not dispose of the

vehicle yourself.

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
22 mph (35 km/h).

■

Acoustic Vehicle Alerting Sys-

tem

In the following cases, the Acoustic

Vehicle Alerting System may be dif-

ficult for surrounding people to hear.

●

In very noisy areas

●

In the wind or the rain

■

If “Acoustic Vehicle Alerting

System Malfunction Visit Your

Dealer” is displayed on the

multi-information display

The system may be malfunctioning.

Have the vehicle inspected by your

Toyota dealer.

Acoustic Vehicle Alerting
System

1-4. Hybrid system

: This function can only be used in

the mainland U.S.A. It cannot be
used in other states and territo-
ries, including Alaska and Hawaii.

This system operates based on
the driving situation and traffic
information to enhance fuel
economy.
For details about Predictive effi-
cient drive, refer to “NAVIGA-
TION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.

■

Predictive deceleration sup-
port



When the vehicle approaches
to predictive deceleration sup-
port points registered in the
navigation system, the “Refer-
ence operation range” (

) of

the ECO Accelerator Guid-
ance (



P.108) on the multi-

information display will be
turned off to encourage the
driver to reduce excessive
acceleration.



The engine braking force will

be increased according to the
driving conditions to more effi-
ciently charge the hybrid bat-
tery (traction battery) after the
accelerator pedal is released.

■

Predictive SOC

control

The following types of control
are performed based on data
such as road and traffic informa-
tion during route guidance by
the navigation system to help
ensure that the vehicle effi-
ciently uses electricity.



When there is a long downhill
slope along the route, the sys-
tem reduces the hybrid bat-
tery (traction battery) level
before reaching the slope to
help ensure charging capacity
for regenerative braking while
traveling downhill.



When traffic congestion is

predicted along the route, the

system helps ensure a certain

battery level before reaching

congested roads to reduce

the frequency of starting the

engine to charge the hybrid

battery (traction battery) due

to low battery levels.

: SOC means state of charge

Predictive efficient drive
(vehicles with navigation
system)

1-4. Hybrid system

For
safety and secu

rity

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

Warning label

Service plug

Rear electric motor (traction motor)

Hybrid battery (traction battery)

High voltage cables (orange)

Front electric motor (traction motor)

Power control unit

Air conditioning compressor

: AWD models only

Hybrid system precautions

Take care when handling the hybrid system, as it is a high
voltage system (about 650V 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

1-4. Hybrid system

■

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 (

go off. If there is only a small

amount of fuel, the hybrid system

may not be able to start. (The stan-

dard amount of fuel is about 3.1 gal.

[11.9 L, 2.6 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 incorpo-

rate electromagnetic shielding,

and therefore emit approximately

the same amount of electromag-

netic waves as conventional gaso-

line 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 lifes-

pan of the hybrid battery (traction

battery) can change in accordance

with driving style and driving condi-

tions.

WARNING

■

High voltage precautions

This vehicle has high voltage DC

and AC systems as well as a 12-

volt system. DC and AC high volt-

age 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 volt-

age parts, cables or their con-

nectors.

●

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 warning labels

attached to the vehicle.

●

Never try to open the service

plug access hole located under-

neath the console box. The ser-

vice 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 seri-

ous injury:

●

Pull your vehicle off the road,

shift the shift lever to P, apply

the parking brake, 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 bat-

tery). 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 imme-

diate medical attention.

1-4. Hybrid system

For
safety and secu

rity

There are air intake vents under
the front seats with the purpose

WARNING

●

If a fire occurs in the Hybrid

Electric Vehicle, leave the vehi-

cle 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 four 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.460)

●

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.

■

Hybrid battery (traction bat-

tery)

●

Never resell, hand over or mod-

ify the hybrid battery. To prevent

accidents, hybrid batteries that

have been removed from a dis-

posed vehicle are collected

through Toyota dealer. Do not

dispose of the battery yourself.

Unless the battery is properly col-

lected, the following may occur,

resulting in death or serious

injury:
• The hybrid battery may be ille-

gally disposed of or dumped,

and it is hazardous to the envi-

ronment 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.

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 hav-

ing 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 bat-

tery must be disposed of by

your Toyota dealer or a qualified

service shop. 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 bat-

tery)

Do not carry large amounts of

water such as water cooler bottles

in the vehicle. If water spills onto

the hybrid battery (traction bat-

tery), the battery may be dam-

aged. Have the vehicle inspected

by your Toyota dealer.

Hybrid battery (traction
battery) air intake vents

1-4. Hybrid system

of cooling the hybrid battery
(traction battery).
If the vents are blocked, it may
interfere with the cooling of the
hybrid battery (traction battery).

If input/output of the hybrid battery
(traction battery) becomes limited
and the distance that the vehicle
can be driven using the electric
motor (traction motor) is reduced,
the fuel economy 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 mini-
mize the risk of electrocution
and fuel leakage. If the emer-
gency shut off system activates,
your vehicle will not restart. To
restart the hybrid system, con-
tact your Toyota dealer.

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
instructions.

■

If a warning light comes on, a

warning message is displayed,

or the 12-volt battery is discon-

nected

The hybrid system may not start. In

NOTICE

■

Hybrid battery (traction bat-

tery) air intake vents

●

Make sure not to block the air

intake vents with anything, such

as a seat cover, plastic cover, or

luggage. The input/output of the

hybrid battery (traction battery)

may be restricted, leading to a

reduction in hybrid battery (trac-

tion battery) output and a mal-

function.

●

Periodically clean the air intake

vents to prevent them from clog-

ging. (



P.440)

●

Do not get water or foreign

materials in the air intake vents

as this may cause a short circuit

and damage the hybrid battery

(traction battery).

Emergency shut off sys-
tem

Hybrid warning message

1-5. Theft deterrent system

1-5.Theft deterrent system

The indicator light flashes after
the power switch has been
turned to OFF to indicate that
the system is operating.
The indicator light stops flashing
after the power switch has been
turned to ACC or ON to indicate
that the system has been can-
celed.

■

System maintenance

The vehicle has a maintenance-free

type immobilizer system.

■

Conditions that may cause the

system to malfunction

●

If the grip portion of the key is in

contact with a metallic object

●

If the key is in close proximity to or

touching a key to the security sys-

tem (key with a built-in transpon-

der chip) of another vehicle

Immobilizer system

The vehicle’s keys have
built-in transponder chips
that prevent the hybrid sys-
tem 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 oper-

ates correctly

Do not modify or remove the sys-

tem. If modified or removed, the

proper operation of the system

cannot be guaranteed.

1-5. Theft deterrent system

For
safety and secu

rity

: If equipped

■

Items to check before lock-
ing the vehicle

To prevent unexpected trigger-
ing of the alarm and vehicle
theft, make sure of the following:



Nobody is in the vehicle.



The side windows and moon
roof (if equipped) are closed
before the alarm is set.



No valuables or other per-
sonal items are left in the
vehicle.

■

Setting

Close the doors and hood, and
lock all the doors. The system
will be set automatically after 30

seconds.

The security indicator changes from
being on to flashing when the sys-
tem is set.

If all doors are closed with hood
open, alarm system can be set.

■

Canceling or stopping

Do one of the following to deac-
tivate or stop the alarm:



Unlock the doors using the
entry function or wireless
remote control.



Turn the power switch to ACC
or ON, or start the hybrid sys-
tem. (The alarm will be deacti-
vated or stopped after a few
seconds.)

■

System maintenance

The vehicle has a maintenance-free

type alarm system.

■

Triggering of the alarm

The alarm may be triggered in the

following situations:

(Stopping the alarm deactivates the

alarm system.)

●

The doors are unlocked using 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 func-
tion (if equipped) or wireless
remote control. (The doors
will lock again automati-
cally.)



The hood is opened.

Setting/canceling/stop-
ping the alarm system

1-5. Theft deterrent system

If a door is unlocked using the

mechanical key while the alarm is

set, a warning will sound intermit-

tently for approximately 10 seconds.

If the alarm is not canceled or

stopped during this time, the warn-

ing pattern changes and the warn-

ing sounds for a certain period of

time.

●

A person inside the vehicle opens

a door or hood, or unlocks the

vehicle using an inside lock but-

ton.

●

The 12-volt battery is recharged or

replaced when the vehicle is

locked. (



P.504)

■

Alarm-operated door lock

In the following cases, depending

on the situation, the door may auto-

matically lock to prevent improper

entry into the vehicle:

●

When a person left in the vehicle

triggers the alarm by unlocking a

door or the back door.

●

When a person left in the vehicle

unlocks a door or the back door

while the alarm is operating.

●

When recharging or replacing the

12-volt battery.

NOTICE

■

To ensure the system oper-

ates correctly

Do not modify or remove the sys-

tem. If modified or removed, the

proper operation of the system

cannot be guaranteed.

Vehicle

statu

s information an

d in
dicator

Vehicle status informa-

tion and indicators

2-1. Instrument cluster

Warning lights and indica-

tors ...............................

Gauges and meters (with

4.2-inch display) ...........

Gauges and meters (with 7-

inch display) ..............

101

Multi-information display

..................................

104

Head-up display ..........

118

Energy monitor/consump-

tion screen.................

122

2-1. Instrument cluster

Vehicle

statu

s information an

d in
dicator

The units used on the meters and some indicators may differ depending on
the target region.

Warning lights inform the driver
of malfunctions in the indicated
vehicle’s systems.

Warning lights

(U.S.A.)

Brake system warning
light

(

(Canada)

(Red)

Brake system warning
light

(

(Yellow)

Brake system warning
light

(

Charging system warning
light

*1, 2

(

High coolant temperature
warning light

(



Hybrid system overheat
warning light

(



Low engine oil pressure
warning light

(



(U.S.A.)

Malfunction indicator
lamp

(

(Canada)

Malfunction indicator
lamp

(

SRS warning light

(

(U.S.A.)

ABS warning light

(

(Canada)

ABS warning light

(



(Red/yel-

low)

Electric power steering
system warning light

(



(Flashes

or illumi-

nates)

PCS warning light

(



P.467)

(Orange)

LTA indicator (

P.467)

Intuitive parking assist
OFF indicator

(if

equipped) (

P.467)

PKSB OFF indicator

(if

equipped) (

P.468)

RCTA OFF indicator

(if

equipped) (

P.468)

RCD OFF indicator (if
equipped) (

P.468)

Slip indicator

(



P.469)

Brake Override Sys-
tem/Drive-Start Con-
trol/PKSB (if equipped)
warning light

(

P.469)

(Flashes)

Brake hold operated indi-
cator

(

P.469)

(U.S.A.)

(Flashes)

Parking brake indicator
(



2-1. Instrument cluster

:These lights turn on when the

power switch is turned to ON to
indicate that a system check is
being performed. They will turn
off after the hybrid system is on,
or after a few seconds. There
may be a malfunction in a sys-
tem if the light does not come on,
or turn off. Have the vehicle
inspected by your Toyota dealer.

:This light illuminates on the

multi-information display with a
message.

:Intuitive parking assist OFF indi-

cator turns on when the power
switch is turned to ON while the
Intuitive parking assist function is
on. It will turn off after a few sec-
onds.

:This light illuminates on the cen-

ter panel.

The indicators inform the driver
of the operating state of the
vehicle’s various systems.

(Canada)
(Flashes)

Parking brake indicator
(

Tire pressure warning
light

(

Low fuel level warning
light (



Seat belt reminder light
(

P.471)

Rear passengers’ seat
belt reminder light

(

P.471)

WARNING

■

If a safety system warning

light does not come on

Should a safety system light such

as the ABS and SRS warning light

not come on when you start the

hybrid system, this could mean

that these systems are not avail-

able to help protect you in an acci-

dent, which could result in death

or serious injury. Have the vehicle

inspected by your Toyota dealer

immediately if this occurs.

Indicators

Turn signal indicator
(



P.245)

(U.S.A.)

Headlight indicator
(



P.251)

(Canada)

Tail light indicator
(



P.251)

Headlight high beam indi-
cator (



P.253)

Automatic High Beam
indicator (

P.253)

Fog light indicator (if
equipped) (