Lexus NX450H+ (2022 year). Manual in english

Using the dedicated floor mats

Using the dedicated floor mats correctly

Use only floor mats designed specifically for vehicles of the same model and model
year as your vehicle. Fix them securely in place onto the carpet.

WARNING

●

When installing a driver's side floor mat, do not use floor mats designed for other
models or different model year vehicles, even if they are Lexus Genuine floor mats.

●

Only use floor mats designed for the driver’s seat.

●

Do not use two or more floor mats on top of each other.

●

Do not place the floor mat bottomside up or upside-down.

Securing the floor mats

WARNING

Check the following before driving.

●

Check that the floor mat is securely fixed in the correct place with all the provided
retaining hooks (clips). Be especially careful to perform this check after cleaning the
floor.

●

With the hybrid system stopped and the shift position in P, fully depress each pedal to
the floor to make sure it does not interfere with the floor mat.

Insert the retaining hooks (clips) into the floor
mat eyelets.

WARNING

Always install the floor mat securely using the retaining hooks (clips) provided.

1-1. Using the dedicated floor mats

Important points for the plug-in hybrid system

Plug-in hybrid system features

The plug-in hybrid system is a system excellent in both economical efficiency
of electric vehicles and practicality of hybrid electric vehicles.EV driving can be
performed using electricity charged from an external power source.If the amount
of electricity remaining in the hybrid battery (traction battery) becomes low, the
vehicle is automatically controlled in such a way that it can be riven as a hybrid
electric vehicle through the joint use of the gasoline engine.

WARNING

The driver should pay extra attention to pedestrians when the vehicle is powered only
by the electric motor (traction motor). As there is no engine noise, the pedestrians may
misjudge the vehicle's movement. Even though the vehicle is equipped with the acoustic
vehicle alerting system, drive with care as pedestrians in the vicinity may still not notice
the vehicle if the surrounding area is noisy.

INFORMATION

■

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.
Through a customization setteing, the on/off operation of the EV indicator can be
changed.

■

Sounds and vibrations specific to a hybrid electric vehicle

Because there is no engine sound or vibration, it is easy to mistake the hybrid electric
vehicle for being off when it is actually still running, as indicated by the "READY"
indicator being illuminated. For safety, make sure to always shift the shift position 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 malfunction:

*1 :

The EV driving range will vary in accordance with conditions such as vehicle speed,

the amount of charge remaining in the hybrid battery (traction battery) and the usage

of the air conditioning system. The gasoline engine may also be used simultaneously in

accordance with driving conditions.

1-2. Important points for the plug-in hybrid system

●

Motor sounds may be heard from the engine compartment.

●

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 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 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.

●

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

●

Cooling fan sounds may be heard from the air intake vents under the rear seats.

●

Sounds may be heard from near the hybrid battery (traction battery) in accordance
with the operation of the air conditioning system or Traction battery cooler.

■

Maintenance, repair, recycling, and disposal

Contact your Lexus dealer regarding maintenance, repair, recycling and disposal. Do not
dispose of the vehicle yourself.

System components

WARNING

Check the following regarding handling of the 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 collected through Lexus
dealers. Do not dispose of the battery yourself.
If the hybrid battery (traction battery) is not properly collected, the following may
occur.

•

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.

1-2. Important points for the plug-in hybrid system

Befor

e driving

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.

●

In the event that your vehicle must be disposed of, the hybrid battery must be disposed
of by your Lexus dealer or a qualified service shop. 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.
If the hybrid battery is not disposed of properly, it may lead to electric shock.

●

If the vehicle under floor area receives strong shock or impact while driving, stop the
vehicle in a safe area and check around the bottom of the vehicle.
If there is damage to the hybrid battery (traction battery) or liquid leakage, it may lead
to a vehicle fire, etc. Do not touch the vehicle and immediately contact your Lexus
dealer.

●

Do not modify the vehicle to make the height lower. It is easier for the hybrid battery
(traction battery) in the under floor area to come in contact with the ground when the
vehicle is lowered. If the hybrid battery (traction battery) is damaged, a vehicle fire
may occur which could lead to death or serious injury.

NOTICE

Do not carry large amounts of water such as water cooler bottles in the vehicle.
If water spills onto the DC/DC converter, the converter may be damaged.
Have the vehicle inspected by your Lexus dealer.

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

Gasoline engine

1-2. Important points for the plug-in hybrid system

Caution label

High voltage cables (orange)

DC/DC converter

AC charging inlet

Junction box

Rear electric motor (traction motor)

Onboard traction battery charger

Service plug

Hybrid battery (traction battery)

Front electric motor (traction motor)

Power control unit

Air conditioning compressor

INFORMATION

■

Hybrid battery (traction battery) lifespan (lithium-ion battery)

The hybrid battery (traction battery) has a limited service life.
The hybrid battery (traction battery) capacity (the ability to hold a charge) reduces
with time and use in the same way as other rechargeable batteries. The extent at
which capacity reduces changes drastically depending on the environment (ambient
temperature, etc.) and usage conditions, such as how the vehicle is driven and how the
hybrid battery (traction battery) is charged. This is a natural characteristic of lithium-ion
batteries, and is not a malfunction. Also, even though the EV driving range becomes
shorter when the hybrid battery (traction battery) capacity reduces, vehicle performance
does not significantly become worse.

■

Starting the hybrid system in an extremely cold environment

When the hybrid battery (traction battery) is extremely cold (below approximately -22°F
[-30°C]) 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 temperature
of the hybrid battery increases due to the outside temperature increase etc.

Plug-in hybrid system operation mode

The plug-in hybrid system operates in the following modes.

The multi-information display can be used to check which mode the plug-in hybrid system
is currently being driven in.

1-2. Important points for the plug-in hybrid system

Befor

e driving

■

EV mode

When a sufficient amount of electricity is remain-
ing after charging

, EV driving is performed us-

ing electricity stored in the hybrid battery (trac-
tion battery).

When in EV mode, the EV drive mode indicator illu-
minates.

■

AUTO EV/HV mode

Normally, the electricity stored in the hybrid bat-
tery (traction battery) is used for EV driving.
However, when more power is required, such as
for driving uphill or accelerating suddenly, the
gasoline engine starts and provides powerful ac-
celeration by strongly depressing the accelerator
pedal.
When the vehicle is in a condition where EV driv-
ing is possible, EV mode and AUTO EV/HV mode can be switched by operating
the switch.

When in AUTO EV/HV mode, the AUTO EV/HV mode indicator illuminates.

■

HV mode

When in HV mode, the vehicle is driven using
both the gasoline engine and electric motor.

●

If electricity needed for EV driving in EV mode or AUTO EV/HV mode is not
remaining, the operation mode will be automatically switched to HV mode.

●

The operation mode can be switched to HV mode at any timing by operating
the switch to keep electricity for EV driving etc.

Switching to HV mode

when driving on a highway or when driving uphill is recommended in order to
conserve battery power.

*2 :

The amount of remaining charge can be checked on the SOC (State of Charge)

gauge.

*3 :

Depending on the situation, EV driving may be canceled and both gasoline engine

and electric motor are used.

1-2. Important points for the plug-in hybrid system

When in HV mode, the HV drive mode indicator illuminates.

■

Hybrid battery (traction battery) charge mode

Electricity generated in the gasoline engine can
be charged in the hybrid battery (traction bat-
tery) by switching to the hybrid battery (traction
battery) charge mode when electricity needed
for EV driving is not remaining.

●

The system may not be able to switch to the hybrid battery (traction battery)
charge mode due to the state of the plug-in hybrid system.

●

Charging time differs depending on the driving state of the vehicle when driving
in hybrid battery (traction battery) charge mode.

When in the hybrid battery (traction battery) charge mode, the hybrid battery charge
mode indicator illuminates.

INFORMATION

■

Hybrid battery (traction battery) charge mode

●

The following may occur to protect the system, etc.

•

Cannot switch to hybrid battery (traction battery) charge mode or cannot cancel it

•

Gasoline engine does not start or stops even after switching to hybrid battery
(traction battery) charge mode

●

If a load to the system is large, such as when the power consumption of the air
conditioning system is large or when the temperature of the engine coolant is high,
it may take longer time than usual to charge using the hybrid battery (traction bat-
tery) charge mode, or charging to the hybrid battery (traction battery) may not be
performed.

■

If the plug-in hybrid system operation mode cannot be changed

In the following situations, the plug-in hybrid system operation mode cannot be changed
even if the AUTO EV/HV mode switch or EV/HV mode selection switch is pressed.
When either switch is pressed, a warning message will be displayed on the multi-informa-
tion display.

●

When the charge of the hybrid battery (traction battery) is insufficient for EV driving:
The operation mode will not be changed to EV mode or AUTO EV/HV mode.

*4 :

The EV driving range may reduce even after switching to HV mode.

*5 :

When in the hybrid battery (traction battery) charge mode, the hybrid battery can be

charged while driving. However, the gasoline engine runs to charge the battery and

fuel consumption becomes higher compared with driving in HV mode.

1-2. Important points for the plug-in hybrid system

Befor

e driving

●

When the hybrid battery (traction battery) is nearly fully charged:
The operation mode will not be changed to hybrid battery (traction battery) charge
mode.

■

When switching from EV mode to another mode using the switch

If the power switch is turned off while in HV mode or hybrid battery (traction battery)
charge mode, the operation mode will be EV mode the next time the hybrid system is
started.

■

After EV mode has switched to HV mode due to low hybrid battery (traction
battery) charge

If the hybrid battery (traction battery) is regenerated by driving continuously down a long
slope, the EV driving range etc. will be displayed on the multi-information display and EV
mode will be automatically switched to.
If EV mode is not switched to even though EV driving range is being displayed, EV mode
can be switched to by pressing the EV/HV mode selection switch.

Control when driving in each mode

■

When in EV mode

In EV mode, EV driving (driving using only the electric motor)

is possible. How-

ever, depending on the situation, EV driving may be canceled and both gasoline
engine and electric motor are used. Also, if a little electricity is remaining in the
hybrid battery (traction battery), HV mode is automatically selected. To drive in EV
mode long, observe the followings.

●

Avoid sudden acceleration and sudden deceleration, and be sure to drive
smoothly. If you repeatedly accelerate, the hybrid battery (traction battery)
charge will deplete quickly. Also, EV driving may be canceled by rapid accelera-
tion or vehicle speed.

●

Restrain your speed as much as possible. The distance that can be driven in EV
mode will reduce considerably at high speeds.

■

When in AUTO EV/HV mode

Only the electric motor is used for EV driving

during normal driving, but when

the accelerator pedal is strongly depressed, the gasoline engine starts.
Also, when the hybrid battery (traction battery) level is low, the mode switches to
HV mode automatically the same as in EV mode.

*6 :

If there is not enough charge remaining in the hybrid battery (traction battery) to

allow EV driving, the system switches to HV mode.

*7 :

The EV driving range can be checked using the multi-information display.

1-2. Important points for the plug-in hybrid system

■

When in HV mode

The vehicle can be used in the same way as a standard hybrid electric vehicle.
When in HV mode the vehicle will normally operate as follows, according to the
driving conditions.

●

The gasoline engine stops

when the vehicle is stopped.

●

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

●

During normal driving, the gasoline engine and electric motor (traction motor)
are controlled effectively, and the vehicle is driven with optimum fuel efficiency.
Also, when necessary, the electric motor (traction motor) operates as an electri-
cal generator to charge the hybrid battery (traction battery).

●

When the accelerator pedal is depressed heavily, drive force from both the
gasoline engine and the electric motor (traction motor) is used to accelerate.

■

When braking (regenerative braking)

The electric motor (traction motor) charges the hybrid battery (traction battery).
The EV driving range can be extended by actively using this regenerative braking
to store electricity in the hybrid battery (traction battery).
Moreover, as fuel consumption is also reduced when in HV mode, the regenerative
braking system can be used effectively.

INFORMATION

■

Gasoline engine operation in EV mode or AUTO EV/HV mode

Even if there is a sufficient amount of electricity remaining in the hybrid battery (traction
battery) and EV driving range is being displayed on the multi-information display, EV
driving (driving using only the electric motor) may be canceled and both gasoline engine
and electric motor are used depending on the situation.
EV driving will be returned to automatically after EV driving becomes possible again.

EV driving may be canceled automatically in the following circumstances

●

When vehicle speed is more than approximately 84 mph (135 km/h).

●

When in AUTO EV/HV mode:

*8 :

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

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

*9 :

The gasoline engine may also operate in circumstances other than those listed

above, depending on conditions.

1-2. Important points for the plug-in hybrid system

Befor

e driving

When power is temporarily needed, such as when the accelerator pedal is fully
depressed or when accelerating suddenly.

*10

●

When the temperature of the hybrid system is high, such as after the vehicle has been
parked in an extremely hot environment, or is driven at high speeds or up a slope, etc.

●

When the temperature of the hybrid system is low.

●

When the heater is switched on when the outside temperature is below about 14°F
(-10°C).

●

When the windshield defogger switch is pressed.

●

When the system determines that the gasoline engine needs to be started.

■

Conditions in which the gasoline engine may not stop

Although the gasoline engine stops and starts automatically according to the vehicle
condition, it may not stop automatically in the following situations:

*11

●

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

■

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 position in D or S.

●

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

Switching the plug-in hybrid system operation modes

Press the AUTO EV/HV mode switch or EV/HV mode selection switch to change
modes as the following table shows.

When the operation mode is changed, the illuminated indicator will also change.

In order to make EV mode or AUTO EV/HV mode available, charge the hybrid
battery (traction battery) from an external power source before using the vehicle.
Even if charging the hybrid battery (traction battery) has not been completed,
the vehicle can be driven. However, if there is not enough charge remaining, it is

*10 :

When driving in AUTO EV/HV mode. Even in EV mode, the gasoline engine may

start, depending on the condition of the hybrid battery (traction battery).

*11 :

Depending on the circumstances, the gasoline engine may also not stop automatical-

ly in other situations.

1-2. Important points for the plug-in hybrid system

possible that the vehicle cannot be driven in EV mode or AUTO EV/HV mode or
the EV driving range will become shorter.

Current mode

Mode after switching

EV mode

AUTO EV/HV mode

AUTO EV/HV mode EV mode

HV mode

AUTO EV/HV mode

*12

Current mode

Mode after switching

EV mode

HV mode

AUTO EV/HV mode HV mode

HV mode

EV mode

*13

Switching to the hybrid battery (traction battery) charge mode

WARNING

Observe the following precautions when the vehicle is parked while in hybrid battery
(traction battery) charge mode, as the gasoline engine will operate.

●

Do not stop the vehicle near flammable materials.

●

Do not use the hybrid battery (traction battery) charge mode in a closed area where
ventilation is insufficient, such as in a garage or area with snow buildup.

▶

AUTO EV/HV mode switch

▶

EV/HV mode selection

switch

*12 :

If there is not enough charge remaining in the hybrid battery (traction battery) to allow

EV driving, AUTO EV/HV mode will not be selectable.

*13 :

If there is not enough charge remaining in the hybrid battery (traction battery) to allow

EV driving, EV mode will not be selectable.

1-2. Important points for the plug-in hybrid system

Befor

e driving

Press and hold the EV/HV mode selection
switch.

Take your hand off the switch once the hybrid battery
charge mode indicator starts to blink.
The hybrid battery charge mode indicator illuminates
when the switch to hybrid battery (traction battery)
charge mode is complete.
When the hybrid battery (traction battery) is fully
charged

*14

, the hybrid battery (traction battery) charge mode is automatically canceled

and the operation mode will be switched to HV mode.
The hybrid battery (traction battery) charge mode will be canceled by pressing AUTO
EV/HV mode switch or EV/HV mode selection switch.

Acoustic vehicle alerting system

When driving with the gasoline engine stopped, a sound, which changes in ac-
cordance 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).

INFORMATION

■

Acoustic vehicle alerting system operating sounds

In the following cases, the acoustic vehicle alerting system may be difficult for surround-
ing people to hear.

●

In very noisy areas

●

In the wind or the rain

Predictive efficient drive (predictive deceleration support)

*15

This function operates based on the driving situation and traffic information of the
road being driven on, helping to ensure excellent fuel economy. For details about
Predictive efficient drive, refer to" MULTIMEDIA OWNER'S MANUAL".
When the vehicle approaches to predictive deceleration support points registered
in the navigation system, the engine braking force will be increased according
to the driving conditions to more efficiently charge the hybrid battery (traction
battery) after the accelerator pedal is released.

*14 :

The maximum charge amount in the hybrid battery (traction battery) charge mode is

approximately 80% of the fully charged capacity for the charging from an external

power source.

*15 :

This function can only be used in the mainland U.S.A. It cannot be used in other states

and territories, including Alaska and Hawaii.

1-2. Important points for the plug-in hybrid system

Plug-in Hybrid system precautions

Take care when handling the hybrid system, as it is a high voltage 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.

WARNING

■

High voltage precautions

This vehicle has high voltage DC and AC systems as well as a 12-volt system.
Observe the following, otherwise you may suffer burns or electric shock.

●

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 temperature, and always obey the
warning labels attached to the vehicle.

●

Never try to open the service plug access hole
located underneath the rear seats. The service
plug is used only when the vehicle is serviced and
is subject to high voltage.

■

If the vehicle is involved in a collision

Observe the following.

●

Stop the vehicle in a safe place to prevent subsequent accidents. While depressing the
brake pedal, apply the parking brake and shift the shift position to P to stop the hybrid
system. Then, slowly release the brake pedal.

●

Do not touch the high voltage parts, cables and connectors.

●

Never touch exposed electric wires. If electric wires are exposed inside or outside
your vehicle, an electric shock may occur.

●

If a fluid leak occurs, do not touch the fluid as it may be strong alkaline electrolyte from
the hybrid battery (traction battery).
If the strongly alkaline electrolyte of the hybrid battery (traction battery) comes into
contact with your eyes or skin, it may cause blindness or injury to the skin. If it comes
into contact with your 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.

1-2. Important points for the plug-in hybrid system

Befor

e driving

WARNING

Even in the unlikely event that the hybrid battery (traction battery) is damaged, 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 poisoning if inhaled.

●

Do not bring burning or high-temperature items close to the electrolyte.
The electrolyte may ignite and cause a fire.

●

If a fire occurs in the hybrid electric 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 the 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.

●

Check the ground under the vehicle. If a liquid other than water from the air condition-
ing system is found, the fuel system may have been damaged.
Do not start the hybrid system. If it is started as is, the leaked fuel may ignite.
Leave the vehicle as soon as possible, and contact your Lexus dealer.

INFORMATION

■

Electromagnetic waves

●

High voltage parts and cables on hybrid electric vehicles incorporate electromagnetic
shielding, and therefore emit approximately the same amount of electromagnetic
waves as conventional gasoline powered vehicles or home electronic appliances.

●

Your vehicle may cause sound interference in some third party-produced radio parts.

■

Effect of magnetic forces

If objects that generate strong magnetic forces, such as large speakers, are placed
inside the luggage compartment or installed nearby, the generated magnetic forces may
negatively affect the hybrid system.

■

Refilling fuel

Plug-in hybrid electric vehicles can be driven using electricity charged from an external
power source. However, as the gasoline engine is used depending on the situation even if
in EV mode or AUTO EV/HV mode, and the gasoline engine is provided on board as a
power source for driving in HV mode, it is needed to refueling the vehicle.

■

If the vehicle is not used for a long time

●

The 12-volt battery may discharge. In this event, charge the 12-volt battery.

1-2. Important points for the plug-in hybrid system

In order to prevent the hybrid battery (traction battery) from becoming extremely low
in charge, charge the hybrid battery (traction battery) from external power source or
start the hybrid system at least once every 2 or 3 months, and turn the power switch
off after the gasoline engine has stopped automatically.
If the gasoline engine does not start up even after approximately 10 seconds have
passed since the "READY" indicator came on, the power switch can be turned to off
without any further action.

●

When the vehicle is left with the AC charging cable connected, the electricity con-
sumption amount of the 12-volt battery increases due to controls, such as the system
checking, operating. When the AC charging cable is not needed, immediately remove
it from the vehicle.

DC/DC converter air intake vent

There is an air intake vent under the rear seat
for cooling the DC/DC converter. Blocking the
air intake vent may prevent the plug-in hybrid
system from operating properly.

NOTICE

Observe the following precautions regarding the DC/DC converter air intake vent.

●

Make sure not to block the air intake vent with anything, such as a seat cover, plastic
cover, or luggage.
Blocking the air intake vent may prevent the plug-in hybrid system from operating
properly.

●

When dust etc. has accumulated in the air intake vent, periodically clean it with a
vacuum cleaner to prevent the vent from clogging.

●

Do not wet or allow foreign substances to enter the air vent as this may cause a short
circuit and damage the DC/DC converter.

●

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.

Lexus NX450H+ (2022 year). Manual in english - page 1