Lexus NX350h (2024 year). Manual in english

●

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

535

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

Vehicles with rain-sensing windshield wipers:
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

8-1. Exterior maintenance and care

536

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 the hybrid battery
(traction battery) air vents, and in the luggage compartment. Doing so may cause the
hybrid battery, 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

538

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

539

Maintenance and car

Cleaning the areas with satin-finish metal accents

●

Remove dirt using a water-dampened soft cloth or synthetic chamois.

●

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

INFORMATION

■

Cleaning the areas with satin-finish metal accents

The metal areas use a layer of real metal for the surface. It is necessary to clean
them regularly. If dirty areas are left uncleaned for long periods of time, they may be
difficult to clean.

8-2. Cleaning and protecting the vehicle interior

540

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

541

Maintenance and car

Cleaning the air intake vent

To prevent the fuel economy from being affected, visually inspect the hybrid
battery (traction battery) air intake vents periodically for clogs. If it is dusty or
clogged or if "Maintenance Required for Traction Battery Cooling Parts See
Owner's Manual" is displayed 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 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 Traction Battery 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 displayed, it may cause a
malfunction or output restriction of the hybrid battery (traction battery).

Cleaning the 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
hybrid battery (traction battery) or other components, a malfunction or fire may occur.

●

Do not touch the service plug located near the air intake vent.

●

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

543

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 hybrid battery (traction battery).

■

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

544

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

545

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 Traction Battery Cooling Parts See Owner's Manual"
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

546

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

548

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

549

Maintenance and car

General maintenance

General maintenance items should be performed at the intervals specified in the
"Warranty and Service Guide" or "Owner’s Manual Supplement". This can be
done by yourself or by a Lexus dealer. It is recommended that any problem you
notice should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

WARNING

If the hybrid system is on, turn the power switch off and ensure that there is adequate
ventilation before performing maintenance checks.

8-3. Maintenance

551

Maintenance and car

Engine compartment maintenance items list

Items

Check points

Brake fluid

Is the brake fluid at the correct level?

→

P.565

Engine/power control

unit coolant

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

→

P.563

Engine oil

Is the engine oil at the correct level?

→

P.561

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.564

Washer fluid

Is there sufficient washer fluid?

→

P.567

8-3. Maintenance

552

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

554

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

555

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

556

Inspection of consumables

Do-it-yourself service precautions

If you perform maintenance by yourself, be sure to follow the correct procedure as
given in the section for each part.

WARNING

The engine compartment contains many mechanisms and fluids that may move suddenly,
become hot, or become electrically charged. Observe the following precautions.

■

When working on the engine compartment

●

Make sure that the "IGNITION ON" on the multi-information display and the
"READY" indicator are both off.

●

Keep hands, clothing and tools away from the moving fan and engine drive belt.

●

Be careful not to touch the engine, power control unit, radiator, exhaust manifold, etc.,
right after driving as they may be hot. Oil and other fluids may also be hot.

●

Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.

●

Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are flamma-
ble.

■

When working near the electric cooling fan or radiator grille

Be sure the power switch is OFF.
With the power switch in ON, the electric cooling fan may automatically start to run if the
air conditioning is on or the coolant temperature is high.

■

Safety glasses

Wear safety glasses to prevent flying or falling material, fluid spray, etc., from getting in
your eyes.

NOTICE

■

If you remove the air cleaner filter

Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in
the air.

Maintenance

Items which require maintenance and the necessary parts and tools to perform
maintenance on those items are as follows:

■

12-volt battery condition

●

Grease

●

Conventional wrench (for terminal clamp bolts)

8-4. Inspection of consumables

557

Maintenance and car

■

Brake fluid level

●

FMVSS No.116 DOT 3 or SAE J1703; FMVSS No.116 DOT 4 or SAE J1704
brake fluid

●

Rag or paper towel

●

Funnel (used only for adding brake fluid)

■

Engine/power control unit coolant level

●

"Toyota Super Long Life Coolant" or a similar high quality ethylene glycol-based
non-silicate, non-amine, nonnitrite and non-borate coolant with long-life hybrid
organic acid technology
For the U.S.A.: "Toyota Super Long Life Coolant" is pre-mixed with 50% coolant
and 50% deionized water.
For Canada: "Toyota Super Long Life Coolant" is pre-mixed with 55% coolant
and 45% deionized water.

●

Funnel (used only for adding coolant)

■

Engine oil level

●

"Toyota Genuine Motor Oil" or equivalent

●

Rag or paper towel

●

Funnel (used only for adding engine oil)

■

Fuses

Fuse with same amperage rating as original

■

Light bulbs

Bulb with same number and wattage rating as original

■

Headlight aim

Phillips-head screwdriver

■

Radiator and condenser

■

Tire inflation pressure

●

Tire pressure gauge

●

Compressed air source

■

Washer fluid

●

Water or washer fluid containing antifreeze (for winter use)

●

Funnel (used only for adding water or washer fluid)

8-4. Inspection of consumables

558

Opening the hood

Pull the hood lock release lever.

The hood will pop up slightly.

Push the auxiliary catch lever to the left and
lift the hood.

INFORMATION

■

Closing the hood

When closing the hood, make sure to release it from a slightly high position (approxi-
mately 7.9 in. [20 cm]) to close it.
If the hood is pushed by hand to close it, it may not lock on both sides.

WARNING

■

Pre-driving check

Check that the hood is fully closed and locked.
If the hood is not locked properly, the hood may suddenly open while driving.

8-4. Inspection of consumables

559

Maintenance and car

Engine compartment

Engine compartment components

Fuse boxes

→

P.719

Engine oil filler cap

→

P.563

Engine oil level dipstick

→

P.561

Brake fluid reservoir

Radiator

Electric cooling fan

Washer fluid tank

Power control unit coolant reservoir

→

P.564

Engine coolant reservoir

→

P.563

Checking and adding the engine oil

INFORMATION

■

Engine oil consumption

A certain amount of engine oil will be consumed while driving. In the following situations,
oil consumption may increase, and engine oil may need to be added in between oil
maintenance intervals.

8-4. Inspection of consumables

560

●

When the engine is new, for example directly after purchasing the vehicle or after
replacing the engine

●

If low quality oil or oil of an inappropriate viscosity is used

●

When driving at high engine speeds or with a heavy load, when towing (vehicles with
towing package only), or when driving while accelerating or decelerating frequently

●

When leaving the engine idling for a long time, or when driving frequently through
heavy traffic

WARNING

●

Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation and skin cancer, so care should be taken to avoid
prolonged and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.

●

Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose
of used oil and filters in household trash, in sewers or onto the ground. Call your
Lexus dealer, service station or auto parts store for information concerning recycling
or disposal.

●

Do not leave used engine oil within the reach of children.

NOTICE

■

When replacing the engine oil

When replacing the engine oil, observe the following precautions.

●

Be careful not to spill engine oil on the vehicle components.

●

Avoid overfilling, or the engine could be damaged.

●

Check the oil level on the dipstick every time you refill the vehicle.

●

Be sure the engine oil filler cap is properly tightened.

■

If oil is spilled on the engine cover

To prevent the engine cover from being damaged, remove any engine oil from the engine
cover as soon as possible using a neutral detergent. Do not use an organic solvent such
as brake cleaner.

Checking the engine oil

With the engine at operating temperature and turned off, check the oil level on the
dipstick.

8-4. Inspection of consumables

561

Maintenance and car

NOTICE

To prevent serious engine damage, check the oil level on a regular basis.

Park the vehicle on level ground. After warming up the engine and turning off
the hybrid system, wait more than 5 minutes for the oil to drain back into the
bottom of the engine.

Holding a rag under the end, pull the dipstick
out.

Wipe the dipstick clean.

Reinsert the dipstick fully.

Holding a rag under the end, pull the dipstick out and check the oil level.

Low

Normal

Excessive

The shape of the dipstick may differ depending on
the type of vehicle or engine.

Wipe the dipstick and reinsert it fully.

Checking the oil type and preparing the items needed

Make sure to check the oil type and prepare the items needed before adding oil.

●