Lexus NX450H+ (2024 year). Manual in english

Subscription

After you have signed the Telematics Subscription Service Agreement and are
enrolled, you can begin receiving services.
A variety of subscription terms is available for purchase. Contact your Lexus
dealer, call the following or push the [SOS] button in your vehicle for further
subscription details.

●

The United States
1-800-25-LEXUS (1-800-255-3987)

●

Canada
1-800-26-LEXUS (1-800-265-3987)

●

Puerto Rico
1-877-539-8777

INFORMATION

■

Safety Connect Services Information

●

Phone calls using the vehicles Bluetooth

technology will not be possible during

Safety Connect.

●

Safety Connect is available beginning Fall 2009 on select Lexus models (in the
contiguous United States only). Contact with the Safety Connect response center
is dependent upon the telematics device being in operative condition, cellular connec-
tion availability, and GPS satellite signal reception, which can limit the ability to reach
the response center or receive emergency service support. Enrollment and Telematics
Subscription Service Agreement required. A variety of subscription terms is available;
charges vary by subscription term selected and location.

●

Automatic Collision Notification, Emergency Assistance and Stolen Vehicle Location
will function in the United States, including Hawaii and Alaska, Puerto Rico and in
Canada, and Enhanced Roadside Assistance will function in the United States, Puerto
Rico and in Canada.

●

Automatic Collision Notification, Emergency Assistance, Stolen Vehicle and En-
hanced Road Assistance will not function in the United States Virgin Islands. For
vehicles first sold in the USVI, no Safety Connect services will function in and outside
the United States Virgin Islands.

●

Safety Connect services are not subject to section 255 of the Telecommunications
Act and the device is not TTY compatible.

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567

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■

Languages

The Safety Connect response center will offer support in multiple languages. The Safety
Connect system will offer voice prompts in English, Spanish, and French. Please indicate
your language of choice when enrolling.

■

When contacting the response center

You may be unable to contact the response center if the network is busy.

Safety Connect LED light Indicators

When the power switch is turned to ON, the red indicator light comes on for 2
seconds then turns off. Afterward, the green indicator light comes on, indicating
that the service is active.The following indicator light patterns indicate specific
system usage conditions:

●

Green indicator light on = Active service

●

Green indicator light flashing = Safety Connect call in process

●

Red indicator light (except at vehicle start-up) = System malfunction (contact
your Lexus dealer)

●

No indicator light (off) = Safety Connect service not active

Safety Connect services

■

Automatic Collision Notification

In case of either airbag deployment or severe rear-end collision, the system is
designed to automatically call the response center. The responding agent receives
the vehicle’s location and attempts to speak with the vehicle occupants to assess
the level of emergency. If the occupants are unable to communicate, the agent
automatically treats the call as an emergency, contacts the nearest emergency
services provider to describe the situation, and requests that assistance be sent to
the location.

■

Stolen Vehicle Location

If your vehicle is stolen, Safety Connect can work with local authorities to assist
them in locating and recovering the vehicle. After filing a police report, call the
Safety Connect response center at 1-800-25-LEXUS (1-800-255-3987) in the
United States, 1-877-539-8777 in Puerto Rico or 1-800-265-3987 in Canada,
and follow the prompts for Safety Connect to initiate this service.
In addition to assisting law enforcement with recovery of a stolen vehicle, Safety-
Connect-equipped vehicle location data may, under certain circumstances, be
shared with third parties to locate your vehicle. Further information is available at
Lexus.com.

7-1. Connected Services

568

■

Emergency Assistance Button ([SOS])

In the event of an emergency on the road, push the [SOS] button to reach the
Safety Connect response center. The answering agent will determine your vehicle’s
location, assess the emergency, and dispatch the necessary assistance required.
If you accidentally press the [SOS] button, tell the response-center agent that you
are not experiencing an emergency.

■

Enhanced Roadside Assistance

Enhanced Roadside Assistance adds GPS data to the already included warranty-
based Lexus roadside service.
Subscribers can press the [SOS] button to reach a Safety Connect response-cen-
ter agent, who can help with a wide range of needs, such as: towing, flat tire, fuel
delivery, etc. For a description of the Roadside Assistance services and their limita-
tions, please see the Safety Connect Terms and Conditions, which are available at
Lexus.com.

Safety information for Safety Connect

Important! Read this information about exposure to radio frequency signals before
using Safety Connect;The Safety Connect system installed in your vehicle is a
low-power radio transmitter and receiver. It receives and also sends out radio
frequency (RF) signals.In August 1996, the Federal Communications Commission
(FCC) adopted RF exposure guidelines with safety levels for mobile wireless
phones. Those guidelines are consistent with the safety standards previously set by
the following U.S. and international standards bodies.

●

ANSI (American National Standards Institute) C95.1 [1992]

●

NCRP (National Council on Radiation Protection and Measurement) Report
86 [1986]

●

ICNIRP (International Commission on Non-Ionizing Radiation Protection)
[1996]

Those standards were based on comprehensive and periodic evaluations of the
relevant scientific literature. Over 120 scientists, engineers, and physicians from
universities, and government health agencies and industries reviewed the available
body of research to develop the ANSI Standard (C95.1).
The design of Safety Connect complies with the FCC guidelines in addition to
those standards.

7-1. Connected Services

569

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Remote Connect

Remote Connect is a smartphone application that lets you view and remotely
control certain aspects of your vehicle.For details about the functions and services
of this application, refer to

http://www.lexus.com/enform/

.Function of the Remote

Connect is achieved by using an embedded cellular device in the vehicle (DCM:
Data Communication Module).

Remote Connect subscription

After you sign the Telematics Subscription Service Agreement, download the
Lexus App from your smartphone’s app store, and register within the app (or enroll
and complete registration at the dealer), you can begin using these services.A
variety of subscription terms are available. Contact your Lexus dealer, or call
1-800-25-LEXUS (1-800-255-3987) for further subscription details.

INFORMATION

■

Availability of service

Remote Connect is not available in some countries or areas.

■

Remote Connect Information

●

Remote Connect should only be used by authorized users.

●

Laws in some communities may require that the vehicle be within view of the user
when operating Remote Connect. In some states, use of Remote Connect may violate
state or local laws. Before using Remote Connect, check your state and local laws.

●

Any malfunction of the Lexus should be repaired by your Lexus dealer.

●

Remote Connect is designed to work at temperatures above -22°F (-30°C). This
specification is related to the Remote Connect operation, but is dependent on the
vehicle’s operating temperature range which may be different.

●

Content is subject to change without notice.

●

Some features of the Remote Connect may not be available on some models.

●

Additional information can be found at

https://www.lexus.com/enform/

●

Availability of functions of the Remote Connect service is dependent on network
reception level.

■

Safety information for Remote Connect

Refer to the safety information for Safety Connect:

→

P.569

7-1. Connected Services

570

Service Connect

Service Connect uses embedded telematics hardware to collect and transmit
vehicle data that allows Lexus to provide:

●

Vehicle Health Report (VHR) (Safety Recalls, Service Campaigns, Current
Vehicle Alerts, Required Maintenance, and Vehicle Condition Status)

●

Maintenance Notifications

●

Vehicle Alert Notifications

For details about this service and how to register, refer to

http://www.lexus.com/

enform/

. The Service Connect is achieved by using a Data Communication Mod-

ule (DCM) built in the vehicle.

INFORMATION

■

Availability of service

Service Connect is not available in some countries or areas.

■

Service Connect Information

Availability of functions of the Service Connect is dependent on network reception level.

■

Safety information for Service Connect

Refer to the safety information for Safety Connect:

→

P.569

7-1. Connected Services

571

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Maintenance and care

8-1. Exterior maintenance and care

Washing the vehicle ...............

574

8-2. Cleaning and protecting the ve-

hicle interior

Cleaning the vehicle interi-

or ................................................

580

Cleaning the areas with sat-

in-finish metal accents.......

582

Cleaning the leather areas.

583

Cleaning the synthetic

leather areas..........................

584

Cleaning DC/DC convert-

er air intake vent...................

585

8-3. Maintenance

Maintenance requirements

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

590

Scheduled maintenance

outline.........................................

591

Do-it-yourself maintenance

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

592

General maintenance ...........

593

Engine compartment main-

tenance items list ..................

594

Luggage compartment

maintenance item list ..........

595

Vehicle interior mainte-

nance items list ......................

596

Vehicle exterior mainte-

nance items list ......................

597

Emission inspection and

maintenance (I/M) pro-
grams........................................

598

8-4. Inspection of consumables

Do-it-yourself service pre-

cautions ....................................

599

Opening the hood ..................

601

Engine compartment.............

602

Adding washer fluid ..............

609

12-volt battery............................

610

Air conditioning filter main-

tenance......................................

613

8-5. Tire maintenance

Tire maintenance ......................

615

Tire inspection items................

616

Run-flat tire features................

619

Operation of the tire pres-

sure warning system............

620

Checking tire inflation pres-

sure..............................................

631

Lifting the vehicle with a

floor jack...................................

633

Rotating the tires......................

634

Wheels.........................................

635

Replacing the tire ....................

637

Headlight aim...........................

646

573

Maintenance and car

Exterior maintenance and care

Washing the vehicle

WARNING

●

When washing the vehicle, do not apply water to the inside of the engine compart-
ment.
If water contacts electrical components, it may cause the vehicle to catch fire.

●

Exhaust gasses cause the exhaust pipes to become quite hot.
When washing the vehicle, be careful not to touch the exhaust pipes until they have
cooled sufficiently. Touching a hot exhaust pipe can cause burns.

NOTICE

■

To prevent paint deterioration and corrosion of the body and components (wheels,
etc.)

●

Wash the vehicle immediately in the following cases:

•

After driving near the sea coast

•

After driving on salted roads

•

If coal tar or tree sap is present on the paint surface

•

If dead insects, insect droppings or bird droppings are present on the paint surface

•

After driving in an area contaminated with soot, oily smoke, mine dust, iron powder
or chemical substances

•

If the vehicle becomes heavily soiled with dust or mud

•

If liquids such as benzine or gasoline are spilled on the paint surface

●

If the paint is chipped or scratched, have it repaired immediately.

●

To prevent the wheels from corroding, remove any dirt and store in a place with low
humidity when storing the wheels.

■

To prevent damage to the windshield wiper arms

When lifting the wiper arms away from the windshield, pull the driver side wiper arm
upward first, and repeat for the passenger side. When returning the wipers to their
original position, do so from the passenger side first.

Perform cleaning in a manner appropriate to each component and its material.

●

Working from top to bottom, liberally apply water to the vehicle body, wheel
wells and underside of the vehicle to remove any dirt and dust.

●

Wash the vehicle body using a sponge or soft cloth, such as a chamois.

●

For hard-to-remove marks, use car wash soap and rinse thoroughly with water.

●

Wipe away any water.

8-1. Exterior maintenance and care

574

INFORMATION

■

Self-restoring coat

The vehicle body has a self-restoring coating that is resistant to small surface scratches
caused by a car wash, etc.

●

The coating lasts for 5 to 8 years from when the vehicle is delivered from the plant.

●

The restoration time differs depending on the depth of the scratch and outside
temperature.
The restoration time may become shorter when the coating is warmed by applying
warm water.

●

Deep scratches caused by keys, coins, etc., cannot be restored.

●

Do not use waxes that contain abrasives.

■

When using a car wash

If the door handle becomes wet while the electronic key is within the effective range,
the door may lock and unlock repeatedly. In that case, follow the following correction
procedures to wash the vehicle:

●

Place the key in a position 6 ft. (2 m) or more separate from the vehicle while the
vehicle is being washed.
Take care to ensure that the key is not stolen.

●

Set the electronic key to battery-saving mode to disable the smart access system with
push-button start.

■

Brake pads and calipers

Rust may form if the vehicle is parked with wet brake pads or disc rotors, causing them
to stick. Before parking the vehicle after it is washed, drive slowly and apply the brakes
several times to dry the parts.

Using an automatic car wash

NOTICE

When using an automatic car wash, move the wiper lever to the off position.
If the wiper lever is in the AUTO position, the wipers may operate unintentionally and the
wiper blades may be damaged.

●

Perform the following before washing your vehicle:

•

Fold the mirrors.

•

Vehicles with power back door:
Turn off the power back door.

Start washing from the front of the vehicle.

8-1. Exterior maintenance and care

575

Maintenance and car

Extend the mirrors before driving.

●

Brushes used in automatic car washes may scratch the vehicle surface, parts
(wheel, etc.) and harm your vehicle’s paint.

●

Depending on the automatic car wash, the rear spoiler may become caught,
preventing it from being washed or causing damage to it.

●

When the shift position needs to be held in N, refer to

P.198

Using a high pressure washer to wash the vehicle

NOTICE

●

When washing the vehicle, do not spray any of the cameras or their surrounding area
directly. The shock from high pressure water may cause a camera to malfunction.

●

Do not bring the tip of the nozzle close to connectors or the boots (rubber or resin
cover) of the following parts.
The parts may be damaged if sprayed by high-pressure water.

•

Drivetrain related parts

•

Steering parts

•

Suspension parts

•

Brake parts

●

Keep the tip of the nozzle at least 11.9 in. (30 cm) away from the vehicle body.
Otherwise resin parts, such as the moldings, bumpers, etc., may be deformed and
damaged. Also, do not continuously spray water on the same place.

●

Do not spray the lower part of the windshield continuously. If water enters the air
conditioning system intake located near the lower part of the windshield, the air
conditioning system may not operate correctly.

●

Do not wash the underside of the vehicle using a high pressure washer.

●

Do not use the washer on the area around the charging port lid. Water could get into
the AC charging inlet and could damage the vehicle.

When using a high pressure washer, as water may enter the cabin, do not bring the
tip of the nozzle near the gaps around the doors or perimeter of the windows, or
spray these areas continuously.

Cleaning the wheels and wheel ornaments

Perform the following:

●

Remove any dirt immediately using a neutral cleaning agent.

●

Wash detergent off with water immediately after use.

8-1. Exterior maintenance and care

576

●

To protect the finish from damage, make sure to observe the following precau-
tions.

•

Do not use acidic, alkaline or abrasive cleaners

•

Do not use hard brushes

•

Do not use detergent on the wheels when they are hot, such as after driving or
parking in hot weather

Cleaning the bumpers

WARNING

If the paint of the front or rear bumper is chipped or scratched, the following systems may
not function correctly. If this occurs, consult your Lexus dealer.

●

Lexus Safety System + 3

●

BSM

●

Safe Exit Assist (with door opening control)

●

RCTA

●

PKSB

Do not scrub with abrasive cleaners.

Cleaning and protecting the plated portions

If dirt cannot be removed, clean the parts as follows:

●

Use a soft cloth dampened with an approximately 5 % solution of neutral
detergent and water to clean the dirt off.

●

Wipe the surface with a dry, soft cloth to remove any remaining moisture.

●

To remove oily deposits, use alcohol wet wipes or a similar product.

INFORMATION

■

Black stainless steel window moldings

The stainless steel window moldings are made of black oxide coated stainless steel.
When cleaning the vehicle, do not scrub the moldings with an abrasive cleaner as
their finish may be damaged or the color may change.

* :

If equipped

8-1. Exterior maintenance and care

577

Maintenance and car

Cleaning the exterior lights

NOTICE

●

Wash carefully. Do not use organic substances or scrub with a hard brush.
Doing so may damage the surface of the lights.

●

Do not apply wax to the lights.
Wax may damage the lenses.

Cleaning the windshield

WARNING

Move the wiper lever to the off position.
If the wiper lever is in the AUTO position, the wipers may operate unexpectedly in the
following situations, possibly leading serious injury from a hand being caught, or damage
to the wiper blades.

Off

AUTO

●

When the upper part of the windshield where the raindrop sensor is located is
touched by hand

●

When a wet rag or similar is held close to the raindrop sensor

●

If something bumps against the windshield

●

If you directly touch the raindrop sensor body or if something bumps into the raindrop
sensor

8-1. Exterior maintenance and care

578

Cleaning and protecting the vehicle interior

Cleaning the vehicle interior

WARNING

■

Water in the vehicle

●

Do not splash or spill liquid in the vehicle, such as on the floor, in DC/DC converter
air intake vent, junction box and in the luggage compartment. Doing so may cause
DC/DC converter, electrical components, etc., to malfunction or catch fire.

●

Do not get any of the SRS components or wiring in the vehicle interior wet.
An electrical malfunction may cause the airbags to deploy or not function properly,
resulting in death or serious injury.

■

Cleaning the interior (especially instrument panel)

Do not use wax polish or a polishing cleaner on the instrument panel. The instrument
panel may reflect off the windshield, obstructing the driver’s view and leading to an
accident, resulting in death or serious injury.

NOTICE

■

Cleaning solvents

●

Do not use the following cleaning solvents, as they may discolor the vehicle interior or
cause streaks or damage to painted surfaces:

•

Areas other than the seats: Organic substances such as benzine or gasoline,
alkaline or acidic solutions, dye, and bleach

•

Seats: thinner, benzine, alcohol, or alkaline or acidic solutions

●

Do not use wax polish or a polishing cleaner. The painted surfaces of the instrument
panel or other interior parts may be damaged.

■

Water on the floor

Do not wash the vehicle floor with water.
If water contacts audio system or other electrical components under the floor carpet, it
may cause the vehicle to malfunction. Water may also cause the body to rust.

■

When cleaning the inside of the windshield

Do not allow glass cleaner to contact the lens of the front camera. Also, do not touch the
lens.

■

Cleaning the inside of the windshield and rear window

●

Do not use glass cleaners to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with lukewarm
water to gently wipe the window clean. Wipe the window in strokes running parallel to
the heater wires or antenna.

●

Be careful not to scratch or damage the heater wires or antenna.

8-2. Cleaning and protecting the vehicle interior

580

Perform cleaning in a manner appropriate to each component and its material.

●

Remove dirt and dust using a vacuum cleaner. Wipe dirty surfaces with a cloth
dampened with lukewarm water.

●

If dirt cannot be removed, wipe it off with a soft cloth dampened with neutral
detergent diluted to approximately 1%.

Wring out any excess water from the cloth and thoroughly wipe off remaining traces of
detergent and water.

INFORMATION

■

Shampooing the carpets

Excellent results can be obtained by keeping the carpet as dry as possible. When
cleaning, use a commercially available foaming-type cleaner.
Use a sponge or brush to apply the foam and rub it in overlapping circles. Do not use
water. Wipe the surface to remove the cleaner and dirt and let it dry.

■

Handling the seat belts

Clean with mild soap and lukewarm water using a cloth or sponge. Also check the
belts periodically for excessive wear, fraying or cuts.

8-2. Cleaning and protecting the vehicle interior

581

Maintenance and car

Cleaning the leather areas

NOTICE

Observe the following precautions to avoid damage to and deterioration of leather
surfaces:

●

Remove any dust or dirt from leather surfaces immediately.

●

Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.

●

Do not place items made of vinyl, plastic, or containing wax on the upholstery, as they
may stick to the leather surface if the vehicle interior heats up significantly.

●

Remove dirt and dust using a vacuum cleaner.

●

Wipe off any excess dirt and dust with a soft cloth dampened with diluted
detergent.

Use a diluted water solution of approximately 5% neutral wool detergent.

●

Wring out any excess water from the cloth and thoroughly wipe off all remain-
ing traces of detergent.

●

Wipe the surface with a dry, soft cloth to remove any remaining moisture. Allow
the leather to dry in a shaded and ventilated area.

INFORMATION

■

Caring for leather areas

Lexus recommends cleaning the interior of the vehicle at least twice a year to
maintain the quality of the vehicle’s interior.

8-2. Cleaning and protecting the vehicle interior

583

Maintenance and car

Cleaning DC/DC converter air intake vent

To prevent the 12-volt battery from discharge, visually inspect the DC/DC Con-
verter air intake vent periodically for dust and clogs. If it is dusty or clogged or if
"Maintenance required for DCDC converter cooling parts See Owner's Manual"
is shown on the multi-information display, clean the air intake vent.

INFORMATION

■

Scheduled maintenance of the air intake vent is necessary when

In some situations such as when the vehicle is used frequently or in heavy traffic or
dusty areas, the air intake vent may need to be cleaned more regularly. For details, refer
to the "Warranty and Service Guide", "Owner’s Manual Supplement" or "Scheduled
Maintenance".

■

Cleaning the DC/DC converter air intake vent

Improper handling of the air intake vent cover and filter may result in damage to them. If
you have any concerns about cleaning the filter, contact your Lexus dealer.

NOTICE

If "Maintenance required for DCDC converter cooling parts See Owner's Manual" is
displayed on the multi-information display, clean the air intake vent immediately.
If the vehicle is continuously driven with the warning message (indicating that the cooling
performance/capacity of the DC/DC converter may become limited) displayed, the
DC/DC converter may malfunction.

Cleaning the DC/DC converter air intake vent

WARNING

When cleaning the air intake vent, observe the following:

●

Do not use water or other liquids to clean the air intake vent. If water is applied to the
DC/DC converter or other components, a malfunction or fire may occur.

●

Before cleaning the air intake vent, make sure to turn the power switch off to stop the
hybrid system.

●

Do not put a hand or leg in the air intake vent. If it is caught in a cooling fan, or if it
touches a high voltage part that results in an electric shock, death or serious injuries
may result.

8-2. Cleaning and protecting the vehicle interior

585

Maintenance and car

NOTICE

■

When cleaning the air intake vent

Do not use an air blow gun, etc. Dust may be blown out, possibly causing a malfunction or
output restriction of the DC/DC converter.

■

To prevent damage to the vehicle

Observe the following precautions:

●

Do not allow liquid or foreign matter to enter the air intake vent.

●

Make sure to reinstall the filter and cover to their original positions after cleaning.

●

Do not install anything to the air intake vent other than the exclusive filter for this
vehicle or use the vehicle without the filter installed.

■

To prevent damage to the filter

Observe the following precautions. If the filter is damaged, have it replaced with a new
filter by your Lexus dealer.

●

Do not use an air blow gun, etc.

●

Do not press hard a vacuum cleaner, etc. against the filter.

●

Do not use a hard brush, such as a metal brush.

●

Do not break the fold of the filter.

Turn the power switch off.

Using a phillips-head screwdriver, remove the
clip.

8-2. Cleaning and protecting the vehicle interior

586

Pull the cover as shown in the illustration to
disengage the 8 claws, starting from the claw
in the upper right corner and pull the cover
toward the front of the vehicle to remove it.

Disengage the 4 center claws from the filter.

Disengage the claws in the order of and

to remove the filter from the cover.

If dust has accumulated on the air intake vent
cover, remove the dust with a vacuum cleaner, etc.

Remove the dust and sand from the filter.

Using a vacuum cleaner, etc., absorb dust and
sand from the filter by profiling the nozzle lightly
along the fold.

Hold the filter to the light and check if it is not
clogged.

If the dust or sand cannot be removed completely,
contact your Lexus dealer.

8-2. Cleaning and protecting the vehicle interior

587

Maintenance and car

INFORMATION

If the dust or sand on the filter cannot be removed, it is recommended to use a
vacuum cleaner with plastic brushes.

Engage the claws in the order of and .

Engage the 4 claws of the air intake vent
cover to install the filter.

Make sure that the filter is not crooked or de-
formed when installing it.

Insert the tab of the cover as shown in the
illustration and push the cover to engage the
8 claws.

Using a phillips-head screwdriver, install the
clip.

If "Maintenance required for DCDC converter cooling parts See Owner's Man-
ual" was displayed on the multi-information display

Start the hybrid system and check that the warning message is no longer
displayed.

8-2. Cleaning and protecting the vehicle interior

588

Maintenance

Maintenance requirements

To ensure safe and economical driving, day-to-day care and regular maintenance
are essential. It is the owner’s responsibility to perform regular checks. Lexus
recommends the following maintenance:

WARNING

■

If your vehicle is not properly maintained

Improper maintenance could result in serious damage to the vehicle and possible death
or serious injury.

■

Handling of the 12-volt battery

●

Engine exhaust, some of its constituents, and a wide variety of automobile components
contain or emit chemicals known to the State of California to cause cancer and birth
defects and other reproductive harm. Work in a well ventilated area.

●

Oils, fuels and fluids contained in vehicles as well as waste produced by component
wear contain or emit chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm. Avoid exposure and wash any affected area
immediately.

●

12-volt battery posts, terminals and related accessories contain lead and lead com-
pounds which are known to cause brain damage. Wash your hands after handling.

INFORMATION

■

Repair and replacement

It is recommended that genuine Lexus parts be used for repairs to ensure performance
of each system. If non-Lexus parts are used in replacement or if a repair shop other than a
Lexus dealer performs repairs, confirm the warranty coverage.

■

Allow inspection and repairs to be performed by a Lexus dealer

●

Lexus technicians are well-trained specialists and are kept up to date with the latest
service information. They are well informed about the operation of all systems on your
vehicle.

●

Keep a copy of the repair order. It proves that the maintenance that has been
performed is under warranty coverage. If any problem should arise while your vehicle
is under warranty, your Lexus dealer will promptly take care of it.

■

General maintenance

General maintenance should be performed on a daily basis. This can be done by yourself
or by a Lexus dealer.

8-3. Maintenance

590

Scheduled maintenance outline

Scheduled maintenance should be performed at specified intervals according to
the maintenance schedule.
For details about maintenance items and schedules, refer to the "Warranty and
Service Guide", "Owner’s Manual Supplement" or "Scheduled Maintenance".

Resetting the message indicating maintenance is required

After the required maintenance is preformed according to the maintenance
schedule, the message must be reset. To reset the message, perform the following
procedure:

Select the

on the center display.

Select [Vehicle customize].

Select [Utility].

Select [Scheduled maintenance].

Select [Reset].

"The data has been reset" will be displayed on the center display when the reset
procedure has been completed.

Resetting the engine oil change message

After the engine oil has been replaced, the engine oil maintenance data should be
reset. Perform the following procedure:

Select the

on the center display.

Select [Vehicle customize].

Select [Utility].

Select [Oil maintenance].

Select [Reset].

"The data has been reset." will be displayed on the center display when the reset
procedure has been completed.

8-3. Maintenance

591

Maintenance and car

Engine compartment maintenance items list

Items

Check points

Brake fluid

Is the brake fluid at the correct level?

→

P.607

Engine/power control

unit coolant

Is the engine/power control unit coolant at the correct level?

→

P.605

Engine oil

Is the engine oil at the correct level?

→

P.603

Exhaust system

There should not be any fumes or strange sounds.

Radiator/condenser

The radiator and condenser should be free from foreign ob-
jects.

→

P.606

Washer fluid

Is there sufficient washer fluid?

→

P.609

8-3. Maintenance

594

Vehicle interior maintenance items list

Items

Check points

Accelerator

pedal

The accelerator pedal should move smoothly. There should be no un-
even pedal effort or catching.

Hybrid trans-

mission “Park”

mechanism

When parked on a slope and the shift position is in P, is the vehicle
securely stopped?

Brake pedal

●

Does the brake pedal move smoothly?

●

Does the brake pedal have appropriate clearance from the floor?

●

Does the brake pedal have the correct amount of free play?

Brakes

●

The vehicle should not pull to one side when the brakes are applied.

●

The brakes should work effectively.

●

The brake pedal should not feel spongy.

●

The brake pedal should not get too close to the floor when the brakes
are applied.

Head restraints Do the head restraints move smoothly and lock securely?

Indicators/

buzzers

Do the indicators and buzzers function properly?

Lights

●

Do all the lights come on?

●

Are the headlights aimed correctly?

Parking brake

●

Does the parking brake switch operate normally?

●

When parked on a slope and the parking brake is on, is the vehicle
securely stopped?

Seat belts

●

Do the seat belts operate smoothly?

●

The seat belts should not be damaged.

Seats

Do the seat controls operate properly?

Steering wheel

●

Does the steering wheel rotate smoothly?

●

Does the steering wheel have the correct amount of free play?

●

There should not be any strange sounds coming from the steering
wheel.

8-3. Maintenance

596

Vehicle exterior maintenance items list

Items

Check points

Doors

Do the doors operate smoothly?

Engine hood Does the engine hood lock system work properly?

Fluid leaks

There should not be any signs of fluid leakage after the vehicle has been
parked.

Tires

●

Is the tire inflation pressure correct?

●

The tires should not be damaged or excessively worn.

●

Have the tires been rotated according to the maintenance schedule?

●

The wheel nuts should not be loose.

Windshield

wipers/rear

window wiper

●

The wiper blades should not show any signs of cracking, splitting,
wear, contamination or deformation.

●

The wiper blades should clear the windshield/rear window without
streaking or skipping.

8-3. Maintenance

597

Maintenance and car

Emission inspection and maintenance (I/M) programs

Some states have vehicle emission inspection programs which include OBD (On
Board Diagnostics) checks. The OBD system monitors the operation of the emis-
sion control system.

When the malfunction indicator lamp comes on

The OBD system determines that a problem exists somewhere in the emission
control system.
Your vehicle may not pass the I/M test and may need to be repaired. Contact your
Lexus dealer to service the vehicle.

Situations your vehicle may not pass the I/M test

Your vehicle may not pass the I/M test in the following situations:

●

When the 12-volt battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased. Also, depend-
ing on your driving habits, the readiness codes may not be completely set.

●

When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary malfunction
and your vehicle may not pass the I/M test.

When the malfunction indicator lamp still remains on after several
driving trips

The error code in the OBD system will not be cleared unless the vehicle is driven
40 or more times.

When your vehicle does not pass the I/M test

Contact your Lexus dealer to prepare the vehicle for re-testing.

8-3. Maintenance

598

Lexus NX450H+ (2024 year). Manual in english - page 18