Lexus NX350 (2024 year). Manual in english

When the tire inflation pressure is to be other than specified, such as when tires
other than the specified size are used, etc., set the tire inflation pressure using
the current pressure. Make sure to adjust the tire inflation pressure of each tire
to the appropriate level before performing tire pressure setting. The tire pressure
warning system operates based on this tire inflation pressure.

Related Links

Setting by selecting a specified tire inflation pressure(P. 536)
Setting using the current tire inflation pressure(P. 537)

Setting by selecting a specified tire inflation pressure

Start the engine.

The tire inflation pressure cannot be set while the vehicle is moving.

Select

on the center display.

Select [Vehicle customize].

Select [Tire pressure].

Select [Set indicated air pressure] and then select the desired front and rear
tire pressures.

Select [OK].

The tire pressure warning light will slowly blink 3
times.
After setting the tire inflation pressure, a message
indicating that setting has been completed will be
displayed on the multi-information display.

INFORMATION

■

If the tire inflation pressure cannot be set easily

●

If the tire pressure warning light does not blink 3 times when starting the tire
inflation pressure setting procedure, the procedure may not have started. Perform
the procedure again from the beginning.

●

If tire inflation pressure setting procedure cannot be completed after performing
the above procedure, contact your Lexus dealer.

8-5. Tire maintenance

536

Setting using the current tire inflation pressure

WARNING

Make sure to adjust the tire inflation pressure of each tire to the appropriate level before
performing tire pressure setting. Otherwise, the tire pressure warning light may not
illuminate even if the tire inflation pressure drops or may illuminate even though the tire
inflation pressure is normal.

INFORMATION

■

Warning performance of the tire pressure warning system

●

When performing the tire pressure setting using the current tire inflation pressure,
the warning timing of the tire pressure warning system will vary according to the
conditions under which tire pressure setting was performed. Therefore, a warning may
be output even if the tire inflation pressure drops slightly or if the tire inflation pressure
increases above that when the tire inflation pressure was set.

●

Make sure to perform the tire pressure setting procedure after adjusting the tire
inflation pressure. Also, make sure the tires are cold before performing the tire
pressure setting procedure or adjusting the tire inflation pressure.

Adjust the tire inflation pressure of each tire to the appropriate level.

Make sure to adjust the tire inflation pressure with the tires cold.

Start the engine.

The tire inflation pressure cannot be set while the vehicle is moving.

Select

on the center display.

Select [Vehicle customize].

Select [Tire pressure].

Select [Set current air pressure].

Select [Continue].

The tire pressure warning light will slowly blink 3
times and a message indicating that tire inflation
pressure is being set will be displayed on the mul-
ti-information display.
After setting the tire inflation pressure, a message
indicating that setting has been completed will be
displayed on the multi-information display.

8-5. Tire maintenance

537

Maintenance and car

INFORMATION

■

Tire inflation pressure setting procedure

●

If the engine switch is turned off while setting the tire inflation pressure, the next
time the engine switch is turned to ON, the setting procedure will resume and it
will not be necessary to restart the procedure.

●

If the tire inflation pressure setting procedure is started unnecessarily, adjust the
tire inflation pressure to the specified level with the tires cold and then perform
setting by selecting a specified tire inflation pressure, or perform the tire inflation
pressure setting procedure with the current tire inflation pressure.

■

If the tire inflation pressure cannot be set easily

●

Normally, the tire inflation pressure setting procedure can be completed in 2 or 3
minutes.

●

If tire inflation pressure setting procedure cannot be completed after performing
the above procedure, contact your Lexus dealer.

Registering ID codes

The tire pressure warning valve and transmitter is equipped with a unique ID code.
When new tire pressure warning valves and transmitters are installed, new ID
codes must be registered in the tire pressure warning computer.

INFORMATION

●

ID codes can be registered by yourself, but depending on the driving conditions and
driving environment, registration may take some time to complete.

●

When using a wheel set which all of the ID codes have already been registered, the
wheel set can be changed in a short amount of time.

Before performing ID code registration, make sure that no wheels with tire pres-
sure warning valve and transmitters installed are near the vehicle.

Park the vehicle in a safe place, turn the engine switch off and wait 15 minutes
or more.

Start the engine.

The ID code registration procedure cannot be performed while the vehicle is moving.

Select

on the center display.

Select [Vehicle customize].

8-5. Tire maintenance

538

Select [Tire pressure].

Check if the desired wheel set ([Set 1] or [Set
2]) is displayed.

ID codes will be registered to the displayed wheel
set.
To change the wheel set to be registered, select
the displayed set, and then select the wheel set
you wish to register.
If ID codes have already been registered for that
wheel set, the tire pressure warning light will slowly blink 3 times, and a message
indicating that change is occurring will be displayed on the multi-information display.

Select [New tire registration].

Select [Continue].

The tire pressure warning light will slowly blink 3
times and a message indicating that ID code reg-
istration is being performed will be displayed on
the multi-information display. Wheel set changing
will be canceled and registration will begin.
When registration is being performed, the tire
pressure warning light will blink for approximately
1 minute then illuminate and "---" will be displayed for the inflation pressure of each tire
on the multi-information display.

INFORMATION

If the tire pressure warning light does not blink 3 times when starting ID code
registration procedure, the procedure may not have started. Perform the procedure
again from the beginning.

Drive straight (with occasional left and right turns) at approximately 25 mph
(40 km/h) or more for approximately 10 to 30 minutes.

When registration is complete, the tire pressure warning light will turn off and a
message indicating that registration has been completed will be displayed on the
multi-information display.
Registration may take longer than normal to complete if the vehicle speed cannot be
maintained at approximately 25 mph (40 km/h) or more. If registration cannot be
completed after driving for 1 hour or more, perform the registration procedure again
from the beginning.

8-5. Tire maintenance

539

Maintenance and car

INFORMATION

■

When registering ID codes

●

Normally, wheel position registration can be completed within approximately 30
minutes.

●

ID code registration is performed while driving at a vehicle speed of approximate-
ly 25 mph (40 km/h) or more.

■

If ID codes are not registered easily

●

In the following situations, ID code registration may take longer than usual to be
completed or may not be possible.

•

When the vehicle has not been parked for approximately 15 minutes or more
before being driven

•

Vehicle is not driven at approximately 25 mph (40 km/h) or more

•

Vehicle is driven on unpaved roads

•

Vehicle is driven near other vehicles and system cannot recognize tire pressure
warning valve and transmitters of your vehicle over those of other vehicles

•

Wheel with tire pressure warning valve and transmitter installed is inside or
near the vehicle

●

If the vehicle is reversed during registration, all data collected until then will be
cleared. Perform driving again.

●

If registration does not complete after driving for 1 hour or more, perform the ID
code registration procedure again from the beginning.

●

If the ID codes cannot be registered even when performing the above procedure,
contact your Lexus dealer.

If the tire inflation pressure of the wheel set installed differs from that of the
previous set, it will be necessary to perform the tire inflation pressure setting
procedure of the tire pressure warning system.

If the specified tire inflation pressure is the same, it will not be necessary to perform the
tire inflation pressure setting procedure.

Related Links

Setting the tire pressure(P. 535)

Canceling ID code registration

To cancel ID code registration after it has been started, select [New tire registra-
tion] again on the center display.

If ID code registration has been canceled, the tire pressure warning light will turn off.

8-5. Tire maintenance

540

If the warning light does not turn off, ID code registration may not have been cancelled
correctly. To cancel registration, select [New tire registration] again on the center display.

Selecting wheel set

Your vehicle is equipped with a tire pressure warning system with a function to
register two sets of ID codes. This allows for registration of a second wheel set, for
example a winter set.

●

The wheel set can be changed only if a second wheel set has been registered to
the system. If a second wheel set has not been registered, "Set 2(Unregistered)"
will be displayed and it will not be possible to change to the selected wheel set.
ID codes can be registered by yourself.

●

Only a change between both registered wheel set is possible, mixing between
these wheel sets is not supported.

●

While registering ID codes, it may not be possible to change between wheel
sets normally. Cancel registration before changing between wheel sets.

Install the desired wheel set.

Select

on the center display.

Select [Vehicle customize].

Select [Tire pressure].

Select the wheel set ([Set 1] or [Set 2]) displayed for the set selection setting.

Select the wheel set you wish to register, and then select [OK].

The tire pressure warning light will slowly blink 3 times, a message indicating that
change is occurring will be displayed, and the wheel set change will begin.
Wheel set change will begin and the tire pressure warning light will blink for 1 minute
and then illuminate. Also, while the change is being performed, "---" will be displayed
for the tire inflation pressure of each tire on the multi-information display.
After approximately 2 minutes, the wheel set
change will complete, the tire pressure warning
light will turn off, and a completion message will
be displayed on the multi-information display.
If changing does not complete after approximate-
ly 4 minutes, a message indicating that the change
could not be completed will be displayed.
Check which wheel set is installed and perform
the change procedure again from the beginning.

8-5. Tire maintenance

541

Maintenance and car

Checking tire inflation pressure

You should check tire inflation pressure every two weeks, or at least once a
month.Do not forget to check the spare.

WARNING

In order to ensure the performance of the tires, maintain proper tire inflation pressure.
If the tires are not properly inflated, the following may occur:

●

Excessive wear

●

Uneven wear

●

Poor handling

●

Possibility of blowouts resulting from overheated tires

●

Air leaking from between tire and wheel

●

Wheel deformation and/or tire damage

●

Greater possibility of tire damage while driving (due to road hazards, expansion joints,
sharp edges in the road, etc.)

NOTICE

After inspecting and adjusting tire inflation pressure, make sure to install the tire valve
caps.
If a valve cap is not installed, dirt or moisture may get into the valve and cause an air leak,
resulting in decreased tire inflation pressure.

Driving with incorrect tire inflation pressure may result in the following:

●

Reduced fuel economy

●

Reduced driving comfort and poor handling

●

Reduced tire life due to wear

●

Reduced safety

●

Damage to the drive train

If a tire needs frequent inflating, have it checked by your Lexus dealer.

■

Instructions for checking tire inflation pressure

When checking tire inflation pressure, observe the following:

●

Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for
more than 1 mile or 1.5 km, you will get an accurate cold tire inflation pressure
reading.

8-5. Tire maintenance

543

Maintenance and car

●

Always use a tire pressure gauge.
It is difficult to judge if a tire is properly inflated based only on its appearance.

●

It is normal for the tire inflation pressure to be higher after driving as heat is
generated in the tire. Do not reduce tire inflation pressure after driving.

●

Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is balanced.

Checking the specified tire inflation pressure

The recommended cold tire inflation pressure
and tire size are displayed on the tire and loading
information label.

Tire inflation pressure inspection and adjustment procedure

Tire valve

Tire pressure gauge

Remove the tire valve cap.

Press the tip of the tire pressure gauge onto
the tire valve.

Read the pressure using the gauge gradations.

If the tire inflation pressure is not at the recom-
mended level, adjust the pressure.

If you add too much air, press the center of the
valve to deflate.

After completing the tire inflation pressure measurement and adjustment, apply
soapy water to the valve and check for leakage.

Put the tire valve cap back on.

8-5. Tire maintenance

544

Wheels

If a wheel is bent, cracked or heavily corroded, it should be replaced. Otherwise,
the tire may separate from the wheel, causing a loss of handling control.

Wheel selection

When replacing wheels, care should be taken to ensure that they are equivalent to
those removed in load capacity, diameter, rim width and inset

Replacement wheels are available at your Lexus dealer.
Lexus does not recommend using the following:

●

Wheels of different sizes or types

●

Used wheels

●

Bent wheels that have been straightened

INFORMATION

■

When replacing wheels

The wheels of your vehicle are equipped with tire pressure warning valves and transmit-
ters that allow the tire pressure warning system to provide advance warning in the event
of a loss in tire inflation pressure.
Whenever wheels are replaced, tire pressure warning valves and transmitters must be
installed.

WARNING

■

When replacing wheels

●

Do not use wheels that are a different size from those recommended in the Owner’s
Manual, as this may result in a loss of handling control.

●

Never use an inner tube in a leaking wheel which is designed for a tubeless tire. Doing
so may result in an accident, causing death or serious injury.

●

Use the correct wheel bolts for the wheels to be installed.
For details, contact your Lexus dealer.

■

Wheel bolts

Observe the following precautions to reduce the risk of death or serious injury:

●

Do not over tighten.

●

Never use oil or grease on the wheel bolts. Oil and grease may cause the wheel bolts
to be excessively tightened, leading to bolt or disc wheel damage. In addition, the oil

*1 :

Conventionally referred to as offset.

8-5. Tire maintenance

547

Maintenance and car

WARNING

or grease can cause the wheel bolts to loosen and the wheel may fall off, causing a
serious accident. Remove any oil or grease from the wheel bolts.

●

If there are any cracks or deformations in the wheel bolts, or if the surface treatment
becomes worn, have the wheel bolts replaced at your Lexus dealer. Failure to follow
these precautions could cause the wheel bolts to loosen and the tire to fall off, resulting
in death or serious injury.

■

Use of defective wheels prohibited

Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an accident.

NOTICE

■

Replacing tire pressure warning valves and transmitters

●

Because tire repair or replacement may affect the tire pressure warning valves and
transmitters, make sure to have tires serviced by your Lexus dealer or other qualified
service shop. In addition, make sure to purchase your tire pressure warning valves and
transmitters at your Lexus dealer.

●

Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-genuine
wheels.

Aluminum wheel precautions

Observe the following precautions when handling the aluminum wheels.

●

Use only Lexus wheel bolts and wrenches designed for use with your aluminum
wheels.

●

When rotating, repairing or changing your tires, check that the wheel bolts are
still tight after driving 621 miles (1000 km).

●

Be careful not to damage the aluminum wheels when using tire chains.

●

Use only Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels.

8-5. Tire maintenance

548

Headlight aim

Vertical movement adjusting bolts

▶

Type A

Adjustment bolt A

Adjustment bolt B

▶

Type B

Adjustment bolt A

Adjustment bolt B

Checking the headlight aim

Before checking the headlight aim, confirm the following.

●

The vehicle has a full tank of gasoline and the area around the headlight is not
deformed.

●

The vehicle is parked on level ground.

●

The tire inflation pressure is at the specified level.

●

Someone is sitting in the driver's seat.

●

The vehicle has been bounced several times after being parked.

8-5. Tire maintenance

549

Maintenance and car

Adjusting the headlight aim

Using a Phillips-head screwdriver, turn bolt A
in either direction. Remember the turning di-
rection and the number of turns.

Turn bolt B the same number of turns and in
the same direction as step 1.

If the headlight cannot be adjusted using this pro-
cedure, take the vehicle to your Lexus dealer to
adjust the headlight aim.

▶

Type A

▶

Type B

▶

Type A

▶

Type B

8-5. Tire maintenance

550

When trouble arises

9-1. What to do if a problem occurs

while driving

What to do if a problem oc-

curs while driving..................

553

9-2. If a warning is indicated on the

meter

If a warning light turns on/

flashes........................................

557

If a warning message is dis-

played........................................

570

9-3. If the engine will not start

When the engine will not

start even though the
starter operates....................

585

When the starter operates

slowly and the engine can-
not be started........................

586

When the starter does not

operate and the engine
cannot be started .................

587

When the interior lights or

headlights are dim and the
engine cannot be started .

589

When the interior lights or

headlights do not illumi-
nate and the engine can-
not be started.........................

595

When the horn sounds at a

low volume and the engine
cannot be started .................

596

When the horn does not

sound and the engine can-
not be started.........................

597

9-4. If a tire is flat

Repairing a tire with the

emergency tire puncture
repair kit (vehicles with an
emergency tire puncture
repair kit).................................

598

Replacing a tire with a spare

tire (vehicles with a spare
tire) .............................................

620

If you get a flat front tire on a

snowy or icy road (vehi-
cles with a spare tire) ..........

632

Precautions for when you

have a flat tire (vehicles
with run-flat tires)..................

633

9-5. If a door cannot be opened or

locked

If a key has been lost...............

634

When the doors/windows/

moon roof cannot be op-
erated using an electronic
key...............................................

635

If a door cannot be opened

using the door opener
switch.........................................

644

If the rear doors cannot be

opened from the inside ......

647

If the back door cannot be

opened.....................................

648

9-6. If the moon roof/sunshade mal-

functions

If the moon roof does not

operate correctly.................

650

551

When tr

ouble arises

If the panoramic moon roof/

electronic sunshade does
not operate correctly...........

651

9-7. If the rear seats does not oper-

ate correctly

Initialize rear seats (Vehi-

cles with power seat) ..........

652

9-8. If refueling cannot be per-

formed

If the fuel filler door cannot

be opened ...............................

653

9-9. If an indicator on an interior fea-

ture illuminates or flashes

When the wireless charger

operation indicator light
(on the charging tray)
flashes........................................

654

9-10. If the vehicle cannot move

When the engine can be

started but the vehicle
does not move .......................

655

If the transmission makes

abnormal sounds..................

656

Towing with a tow truck.........

657

Using a flatbed truck...............

661

Towing with another vehicle

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

662

Getting unstuck from mud,

sand, or snow..........................

665

9-11. If you think something is wrong

If a vehicle abnormality is

found..........................................

666

If abnormal sounds are

emitted from the vehicle....

667

If the vehicle behaves ab-

normally...................................

668

9-12. Items to check before contact-

ing a dealership

If the windows do not open

or close by operating the
power window switches.....

669

The engine switch is turned

off automatically.....................

671

If your vehicle overheats.......

672

If electrical components

cannot be used or do not
operate when a switch is
operated...................................

676

If a light does not illuminate

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

677

552

What to do if a problem occurs while driving

Using the emergency flashers to warn other drivers

Use the emergency flashers to inform other drivers of the presence of your vehicle
when it is stopped on the road, such as if the vehicle has broke down.
Press the switch.

All the turn signal lights will flash. To turn them off,
press the switch once again.

INFORMATION

■

Emergency flashers

●

If the emergency flashers are used for a long time with the engine stopped, the battery
may become discharged.

●

If any of the SRS airbags deploy (inflate) or in the event of a strong rear impact, the
emergency flashers will turn on automatically.
The emergency flashers will turn off automatically after operating for approximately
20 minutes. To manually turn the emergency flashers off, press the switch twice. (The
emergency flashers may not turn on automatically depending on the force of the
impact and conditions of the collision.)

Stopping the vehicle in an emergency

Stop the vehicle using the following procedure only in an emergency, such as if it
becomes impossible to stop the vehicle in the normal way:

WARNING

■

If the engine has to be stopped while driving

Power assist for the brakes and steering wheel will be lost, making the brake pedal harder
to depress and the steering wheel heavier to turn. Decelerate as much as possible before
stopping the engine.

Steadily step on the brake pedal with both feet and firmly depress it.

Do not pump the brake pedal repeatedly as this will increase the effort required to slow
the vehicle.

9-1. What to do if a problem occurs while driving

553

When tr

ouble arises

Change the shift position to N.

●

If the shift position is changed to N:
After slowing down, stop the vehicle in a safe place by the road.
Stop the engine.

●

If the shift position cannot be changed to N:
Keep depressing the brake pedal with both feet to reduce vehicle speed as much as
possible.
To stop the engine, press and hold the engine switch for 2 consecutive seconds or
more, or press it briefly 3 times or more in succession.

Stop the vehicle in a safe place by the road.

WARNING

To restart the engine after performing an emergency shutdown, change the shift
position to N and then press the engine switch.

If the vehicle is submerged or water on the road is rising

This vehicle is not designed to be able to drive on roads that are deeply flooded
with water. Do not drive on roads where the roads may be submerged or the water
may be rising. It is dangerous to remain in the vehicle, if it is anticipated that the
vehicle will be flooded or set adrift.
Remain calm and follow the following.

●

If the door can be opened, open the door and exit the vehicle.

●

If the door cannot be opened, open the window using the power window switch
and ensure an escape route.

●

If the window can be opened, exit the vehicle through the window.

●

If the door and window cannot be opened due to the rising water, remain calm,
wait until the water level inside the vehicle rises to the point that the water
pressure inside of the vehicle equals the water pressure outside of the vehicle
and then open the door after waiting for the rising water to enter the vehicle, and
exit the vehicle.

9-1. What to do if a problem occurs while driving

554

When the outside water level exceeds half the height of the door, the door cannot be
opened from the inside due to water pressure.

INFORMATION

■

Water level exceeds the floor

When the water level exceeds the floor and time has passed, the electrical equipment will
get damaged, the power windows will not operate, the engine stop, and the vehicle may
not be able to get moving.

■

Using an emergency escape hammer

Laminated glass

is used in the windshield and the windows on this vehicle. Laminated

glass cannot be shattered with an emergency hammer

■

How to distinguish laminated glass

When looking from the cross-sectional view point, laminated glass is two sheets of glass
pasted together.

Laminated glass

Tempered glass

WARNING

■

Caution while driving

Do not drive on roads where the roads may be submerged or the water may be rising.
Otherwise the vehicle may be damaged and cannot move, as well as become flooded
and set adrift, which may lead to death.

Operation of the fuel pump shut off system

When a certain level of impact is detected by an impact sensor due to a collision
and an airbag deploys or the engine is stopped, the fuel pump shut off system
operates to stop the supply of fuel and minimize the risk of fuel leakage.

* :

If equipped

*1 :

Contact your Lexus dealer or aftermarket accessory manufacturer for further infor-

mation about an emergency hammer.

9-1. What to do if a problem occurs while driving

555

When tr

ouble arises

If a warning is indicated on the meter

If a warning light turns on/flashes

Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessarily
indicate a malfunction in the system. However, if this continues to occur, have the
vehicle inspected by your Lexus dealer.

INFORMATION

■

Warning buzzer

In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.

Brake system warning light (warning buzzer)

Condition

Cause / Remedy

(U.S.A.) or

(red) (Canada)

Indicates that:

●

The brake fluid level is low; or

●

The brake system is malfunctioning

Immediately stop the vehicle and contact your Lexus dealer. Con-
tinuing to drive the vehicle may be dangerous.

WARNING

If both the ABS and the brake system warning lights remain on, stop your vehicle in a safe
place immediately and contact your Lexus dealer.
The vehicle will become extremely unstable during braking, and the ABS system may fail,
which could cause an accident resulting in death or serious injury.

Brake system warning light (warning buzzer)

Condition

Cause / Remedy

(yellow)

Indicates a malfunction in the parking brake
Have the vehicle checked by your Lexus dealer immediately.

WARNING

If both the ABS and the brake system warning lights remain on, stop your vehicle in a safe
place immediately and contact your Lexus dealer.

9-2. If a warning is indicated on the meter

557

When tr

ouble arises

WARNING

The vehicle will become extremely unstable during braking, and the ABS system may fail,
which could cause an accident resulting in death or serious injury.

High coolant temperature warning light (warning buzzer)

Condition

Cause / Remedy

This light illuminates on the

multi-information display.

Indicates that the engine coolant temperature is too
high
Immediately stop the vehicle in a safe take the cor-
rective actions for overheating.

Related Links

If your vehicle overheats(P. 672)

Charging system warning light (warning buzzer)

Condition

Cause / Remedy

This light illuminates on the

multi-information display.

Indicates a malfunction in the vehicle’s charging
system
Immediately stop the vehicle in a safe place and
contact your Lexus dealer.

Low engine oil pressure warning light (warning buzzer)

Condition

Cause / Remedy

This light illuminates on the

multi-information display.

Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe place and
contact your Lexus dealer.

9-2. If a warning is indicated on the meter

558

Malfunction indicator lamp

Condition

Cause / Remedy

(U.S.A.) or

(Canada)

Indicates a malfunction in:

●

The electronic engine control system;

●

The electronic throttle control system; or

●

The electronic transmission control system

Immediately stop the vehicle in a safe place and contact your Lexus
dealer.

INFORMATION

■

If the malfunction indicator lamp comes on while driving

First check the following:

●

Is the fuel tank empty?
If it is, fill the fuel tank immediately.

●

Is the fuel tank cap loose?
If it is, tighten it securely.

The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon as
possible.

SRS warning light

Warning light

Details / Actions

●

The SRS airbag system is malfunctioning

●

The seat belt pretensioner system is malfunctioning

Have the vehicle checked by your Lexus dealer immediately.

SRS warning light

This warning light indicates problems with the following:

●

Airbag sensor assembly

●

Front impact sensors

●

Side impact sensors (front door)

●

Side impact sensors (front)

9-2. If a warning is indicated on the meter

559

When tr

ouble arises

●

Front passenger occupant classification sensors

●

Driver’s seat position sensor

●

Driver’s seat belt buckle switch

●

Front passenger’s seat belt buckle switch

●

"AIR BAG ON" indicator light

●

"AIR BAG OFF" indicator light

●

Seat belt pretensioners

●

Air bags

●

Interconnecting wiring and power sources.

Related Links

SRS airbags(P. 463)

ABS warning light (warning buzzer)

Condition

Cause / Remedy

(U.S.A.) or

(Canada)

Indicates a malfunction in:

●

The ABS; or

●

The brake assist system

Have the vehicle checked by your Lexus dealer immediately.

WARNING

9-2. If a warning is indicated on the meter

560

Inappropriate pedal operation warning light (warning buzzer)

Condition

Cause / Remedy

This light illuminates

on the multi-information

display.

When a buzzer sounds:
Indicates a malfunction in:

●

The Brake Override System

●

The Drive-Start Control

Have the vehicle checked by your Lexus dealer imme-
diately.

When a buzzer sounds:
Indicates that the shift position was changed and
Drive-Start Control was operated while depressing
the accelerator pedal.
Momentarily release the accelerator pedal.

When a buzzer sounds:
PKSB (Parking Support Brake)

has operated

Follow the instructions displayed on the multi-informa-
tion display.

When a buzzer does not sound:
Indicates that the accelerator and brake pedals are be-
ing depressed simultaneously, and the Brake Override
System is operating.
Release the accelerator pedal and depress the brake
pedal.

Electric power steering system warning light (warning buzzer)

Condition

Cause / Remedy

(red/yellow)

Indicates a malfunction in the EPS (Electric Power Steering) system
Have the vehicle checked by your Lexus dealer immediately.

* :

If equipped

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When tr

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INFORMATION

■

Electric power steering system warning light (warning buzzer)

When the battery charge becomes insufficient or the voltage temporarily drops, the
electric power steering system warning light may come on and the warning buzzer may
sound.

WARNING

When the electric power steering system warning light comes on yellow, the assist to
the power steering is restricted. When the light comes on red, the assist to the power
steering is lost and handling operations of the steering wheel become extremely heavy.
When steering wheel operations are heavier than usual, grip the steering wheel firmly
and operate it using more force than usual.

Low fuel level warning light

Condition

Cause / Remedy

Indicates that remaining fuel is approximately 2.3 gal. (8.5 L, 1.9 Imp.
gal.) or less
Refuel the vehicle.

Driver’s and front passenger’s seat belt reminder light (warning buzzer)

Condition

Cause / Remedy

Warns the driver and/or front passenger to fasten their seat belts
Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s seat
belt also needs to be fastened to make the warning light (warning
buzzer) turn off.

INFORMATION

■

Driver’s and front passenger’s seat belt warning buzzer

●

Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt
is not fastened. Once the engine switch is turned to ON, the buzzer sounds. If the
seat belt is still unfastened, the buzzer sounds intermittently for a certain period of time
after the vehicle reaches a certain speed.

●

Front passenger’s seat belt warning buzzer:

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The front passenger’s seat belt warning buzzer sounds to alert the front passenger that
his or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds
intermittently for a certain period of time after the vehicle reaches a certain speed.

■

Front passenger detection sensor, seat belt reminder and warning buzzer

●

If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a
passenger is not sitting in the seat.

●

If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.

Rear passengers’ seat belt reminder light (warning buzzer)

Condition

Cause / Remedy

(Vehicles without a head-up display)

(Vehicles with a head-up display)

Warns the rear passengers to fasten their
seat belts
Fasten the seat belt.

INFORMATION

■

Rear passengers’ seat belt warning buzzer

The rear passengers’ seat belt warning buzzer sounds to alert the rear passenger that
his or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds
intermittently for a certain period of time, after the seat belt is fastened and unfastened
and the vehicle reaches a certain speed.

Tire pressure warning light (warning buzzer)

Condition

Cause / Remedy

When the light comes on after blinking for approximately 1 minute (a
buzzer does not sounds):
Malfunction in the tire pressure warning system
Have the system checked by your Lexus dealer.

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When tr

ouble arises

Condition

Cause / Remedy

When the light comes on (a buzzer sounds):
Low tire inflation pressure from natural causes
After the temperature of the tires has lowered sufficiently, check the
inflation pressure of each tire and adjust them to the specified level.

When the light comes on (a buzzer sounds):
Low tire inflation pressure from flat tire
Immediately stop the vehicle in a safe place and perform the necessa-
ry actions

INFORMATION

■

If the tire pressure warning light comes on

Inspect the tires to check if a tire is punctured.

●

If a tire is punctured:

→

P.598

●

If none of the tires are punctured: Turn the engine switch off then turn it to ON. Check
if the tire pressure warning light comes on or blinks.

•

If the tire pressure warning light blinks for approximately 1 minute then stays on
There may be a malfunction in the tire pressure warning system. Have the vehicle
inspected by your Lexus dealer immediately.

•

If the tire pressure warning light comes on
After the temperature of the tires has lowered sufficiently, check the inflation
pressure of each tire and adjust them to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check
that the inflation pressure of each tire is at the specified level and perform the tire
inflation pressure setting procedure.
If the warning light does not turn off even after several minutes have elapsed since
performing the tire inflation pressure setting procedure, have the vehicle inspected
by your Lexus dealer immediately.

■

The tire pressure warning light may come on due to natural causes

The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caused by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).

■

When a tire is replaced with a spare tire (vehicles with a compact spare tire)

The spare tire is not equipped with a tire pressure warning valve and transmitter. If a tire
goes flat, the tire pressure warning light will not turn off even though the flat tire has been

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564

replaced with the spare tire. Replace the spare tire with the repaired tire and adjust the
tire inflation pressure. The tire pressure warning light will go off after a few minutes.

WARNING

■

If the tire pressure warning light comes on

Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.

●

Vehicles with run-flat tires:
Decelerate to the lowest appropriate speed as soon as possible. Do not drive over 50
mph (80 km/h).

●

Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.

●

If the tire pressure warning light comes on even after tire inflation pressure adjustment,
it is probable that you have a flat tire. Have the flat tire replaced by the nearest Lexus
dealer.

●

Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.

■

If a blowout or sudden air leakage should occur

The tire pressure warning system may not activate immediately.

■

Maintenance of the tires

Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recommended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label (tire and load information label). (If your
vehicle has tires of a different size than the size indicated on the vehicle placard or tire
inflation pressure label [tire and load information label], you should determine the proper
tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure moni-
toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure
telltale (tire pressure warning light) when one or more of your tires is significantly
under-inflated. Accordingly, when the low tire pressure telltale (tire pressure warning
light) illuminates, you should stop and check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a significantly under-inflated tire causes the tire
to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and
tire tread life, and may affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for proper
tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even
if under-inflation has not reached the level to trigger illumination of the TPMS low tire
pressure telltale (tire pressure warning light).

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WARNING

Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-
function indicator to indicate when the system is not operating properly. The TPMS (tire
pressure warning system) malfunction indicator is combined with the low tire pressure
telltale (tire pressure warning light). When the system detects a malfunction, the telltale
will flash for approximately one minute and then remain continuously illuminated. This
sequence will continue upon subsequent vehicle start-ups as long as the malfunction
exists. When the malfunction indicator is illuminated, the system may not be able to
detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety of reasons,
including the installation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS (tire pressure warning system) from functioning properly. Always
check the TPMS (tire pressure warning system) malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure that the replacement or alternate tires and
wheels allow the TPMS (tire pressure warning system) to continue to function properly.

NOTICE

■

To ensure the tire pressure warning system operates properly

Do not install tires with different specifications or makers, as the tire pressure warning
system may not operate properly.

Stop & Start cancel indicator (warning buzzer)

Condition

Cause / Remedy

(flashes)

The Stop & Start system may be malfunctioning.
Have the vehicle checked by your Lexus dealer immediately.

Stop & Start system indicator (warning buzzer)

Condition

Cause / Remedy

(flashes)

If the driver's door is opened when the engine is stopped by the
Stop & Start system and the shift lever is in D, a buzzer will sound
and the Stop & Start system indicator will flash.
To stop the buzzer, close the driver's door.

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566

Intuitive parking assist OFF indicator (warning buzzer)

Condition

Cause / Remedy

Indicates a malfunction in the intuitive parking assist function
Have the vehicle checked by your Lexus dealer immediately.

Indicates that the system is temporarily unavailable, possibly due to a
sensor being dirty or covered with ice, etc.
Follow the instructions displayed on the multi-information display.

PCS warning light (warning buzzer)

Condition

Cause / Remedy

Indicates a malfunction in the PCS (Pre-Collision System).
Follow the instructions displayed on the display.

●

If the PCS (Pre-Collision System) or VSC (Vehicle Stability Con-
trol) system is disabled, the PCS warning light will illuminate.

LTA indicator (warning buzzer)

Condition

Cause / Remedy

(Yellow)

Indicates a malfunction in the LTA (Lane Tracing Assist).

●

Follow the instructions displayed on the display.

LDA indicator (warning buzzer)

Condition

Cause / Remedy

(Yellow)

Indicates a malfunction in the LDA (Lane Departure Alert).

●

Follow the instructions displayed on the display.

Dynamic radar cruise control indicator (warning buzzer)

Condition

Cause / Remedy

(Yellow)

Indicates a malfunction in the dynamic radar cruise control system.

●

Follow the instructions displayed on the display.

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When tr

ouble arises

Lexus NX350 (2024 year). Manual in english - page 17