Lexus NX250 (2022 year). Manual in english — page 34

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:
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
intermittenly 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.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

564

Rear passengers’ seat belt reminder lights (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.

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

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

565

9

When tr

ouble arises

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
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.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

566

WARNING

●

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).
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

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

567

9

When tr

ouble arises

WARNING

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.

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.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

568

PCS warning light (warning buzzer)

Condition

Cause / Remedy

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

●

Illuminates when the PCS (Pre-Collision System) or VSC (Vehicle
Stability Control) system is disabled.

LTA indicator (warning buzzer)

Condition

Cause / Remedy

（

Or-

ange

）

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

●

Follow the instructions displayed on the multiinformation
display.

LDA indicator (warning buzzer)

Condition

Cause / Remedy

（

Or-

ange

）

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

●

Follow the instructions displayed on the multiinformation
display.

Dynamic radar cruise control indicator (warning buzzer)

Condition

Cause / Remedy

（

Or-

ange

）

Indicates a malfunction in the dynamic radar cruise control
system.

●

Follow the instructions displayed on the multiinformation
display.

Cruise control indicator (warning buzzer)

Condition

Cause / Remedy

（

Or-

ange

）

Indicates a malfunction in the cruise control system.

●

Follow the instructions displayed on the multiinformation
display.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

569

9

When tr

ouble arises

Driving assist infomation indicator

Condition

Cause / Remedy

Indicates one of the following systems is malfunctioning or disabled.

●

PCS (Pre-Collision System)

●

LDA (Lane Departure Alert)

●

PKSB (Parking Support Brake)

*

●

RCD (Rear Camera Detection)

*

●

BSM (Blind Spot Monitor)

●

RCTA(Rear cross traffic alert)

●

Safe Exit Assist (with door opening control)

●

Automatic Rear Flashing Hazard Lights

●

Follow the instructions displayed on the multiinformation display.

Slip indicator

Condition

Cause / Remedy

(illumi-

nates)

Indicates a malfunction in:

●

The VSC system;

●

The Trailer Sway Control system;

●

The TRAC system;

●

The Trail Mode function

*

; or

●

The hill-start assist control system

Have the vehicle checked by your Lexus dealer immediately.

* :

If equipped

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

570

Parking brake indicator

Condition

Cause / Remedy

(U.S.A.)

(flashes) or

(Canada) (flashes)

It is possible that the parking brake is not fully engaged or
released
Operate the parking brake switch once again.
This light comes on when the parking brake is not released.
If the light turns off after the parking brake is fully released,
the system is operating normally.

Indicates a malfunction in the parking brake system
Have the vehicle checked by your Lexus dealer immedi-
ately.

Brake hold operated indicator (warning buzzer)

Condition

Cause / Remedy

(flashes)

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

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

571

9

When tr

ouble arises

If a warning message is displayed

The multi-information display shows warnings for system malfunctions and incor-
rectly performed operations, and messages that indicate a need for maintenance.
When a message is displayed, perform the appropriate corrective action for the
message.
If a warning message is displayed again after the appropriate actions have been
performed, contact your Lexus dealer.
Additionally, if a warning light comes on or flashes at the same time that a warning
message is displayed, take the appropriate corrective action for the warning light.

INFORMATION

■

Warning messages

The warning messages explained below may differ from the actual messages according
to operation conditions and vehicle specifications.

■

Warning buzzer

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

"Engine Oil Level Low Add or Replace"

Cause

Remedy

The engine oil
level may be
low.

Check the level of the engine oil, and add engine oil if necessa-
ry.
This message may be displayed if the vehicle is stopped on
a slope. Move the vehicle to a level surface and check if the
message disappears.

Related Links

Checking and adding the engine oil(P. 514)

"Engine Stopped Steering Power Low"

Cause

Remedy

This message is displayed if
the engine is stopped while
driving.

When steering wheel operations are heavier than
usual, grip the steering wheel firmly and operate it
using more force than usual.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

572

"Auto Power OFF to Conserve Battery"

Cause

Remedy

Power was turned off due
to the automatic power off
function.

Next time when starting the engine, increase the
engine speed slightly and maintain that level for
approximately 5 minutes to recharge the battery.

Related Links

Changing the engine switch mode(P. 145)

"12-Volt Battery Charging System Malfunction Stop in a Safe Place See
Owner's Manual"

Cause

Remedy

It may indicate a mal-
function.

Immediately stop the vehicle and contact your Lexus
dealer. Continuing to drive the vehicle may be danger-
ous.

"Tire Set Switching Incomplete Try Tire Set Registration Again See
Owner's Manual"

Cause

Remedy

The wheel set change
could not be completed.

Check which wheel set is installed and perform the
change procedure again from the beginning.

Related Links

Selecting wheel set(P. 542)

"Headlight System Malfunction Visit Your Dealer"

Cause

Remedy

The system may be malfunction-
ing.

Have the vehicle checked by your Lexus
dealer.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

573

9

When tr

ouble arises

"AWD System Overheated 2WD Mode Engaged"

*

Cause

Remedy

This message may be
displayed when driving
under extremely high
load conditions.

●

Drive the vehicle at low speeds or stop the vehicle
in a safe place with the engine running until the
message is cleared.

If the message is not cleared, have the vehicle inspected
by your Lexus dealer.

"Engine Coolant Temp High Stop in a Safe Place See Owner's Manual"

Remedy

Take the corrective actions for overheating.

Related Links

If your vehicle overheats(P. 664)

"Access System with Elec.Key malfunction See owner's manual"

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

"Braking Power Low Stop in a Safe Place See Owner's Manual"

Cause

Remedy

It may indicate a mal-
function.

Immediately stop the vehicle and contact your Lexus
dealer. Continuing to drive the vehicle may be danger-
ous.

"Braking power low Stop in a safe place See owners manual"

Cause

Remedy

It may indicate a mal-
function.

Immediately stop the vehicle and contact your Lexus
dealer. Continuing to drive the vehicle may be danger-
ous.

* :

If equipped

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

574

"Oil pressure low Stop in a safe place See owner's manual"

Cause

Remedy

It may indicate a mal-
function.

Immediately stop the vehicle and contact your Lexus
dealer. Continuing to drive the vehicle may be danger-
ous.

"High Power Consumption Power to Climate Temporarily Limited"

Cause

Remedy

If this message is displayed frequently, there is a
possible malfunction relating to the charging sys-
tem or the battery may be deteriorating.

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

A message that indicates the need for visiting your Lexus dealer

Cause

Remedy

The system or part shown on the multi-in-
formation display is malfunctioning.

Have the vehicle inspected by your
Lexus dealer immediately.

"A New Key has been Registered Contact Your Dealer for Details"

Cause

Remedy

This message will be displayed each
time the driver’s door is opened when
the doors are unlocked from the out-
side for approximately 10 days after
a new electronic key has been regis-
tered.

If this message is displayed but you have
not had a new electronic key registered,
ask your Lexus dealer to check if an un-
known electronic key (other than those
in your possession) has been registered.

"Parking Brake Temporarily Unavailable"

Cause

Remedy

If the parking brake is operated repeatedly
over a short period of time, the system may
restrict operation to prevent overheating.

If this happens, refrain from operat-
ing the parking brake. Normal oper-
ation will return after about 1 minute.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

575

9

When tr

ouble arises

"EPB Activation Stopped Incompletely"

Cause

Remedy

Operate the parking brake switch. If the message
does not disappear after operating the switch several
times, the system may be malfunctioning.

Have the vehicle
checked by your Lexus
dealer.

"Parking Brake Unavailable"

Cause

Remedy

Operate the parking brake switch. If the message
does not disappear after operating the switch several
times, the system may be malfunctioning.

Have the vehicle
checked by your Lexus
dealer.

"Brake Hold Malfunction Press Brake to Deactivate Visit Your Dealer"

Cause

Remedy

The system may be malfunc-
tioning.

Have the vehicle checked by your Lexus dealer
immediately.

"Transmission Oil Temp High Stop in a Safe Place and See Owner's
Manual"

Cause

Remedy

Transmission will automatically shift
up.

Have the vehicle checked by your Lexus
dealer.

"Shift System Malfunction Shifting Unavailable Drive to a Safe Place
and Stop"

Cause

Remedy

There is a malfunction in the shift
control system.

Have the vehicle checked by your Lexus
dealer immediately.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

576

"Shift System Malfunction Driving Unavailable"

Cause

Remedy

There is a malfunction in the shift
control system.

Have the vehicle checked by your Lexus
dealer immediately.

If a message that indicates the need for the shift lever operation is
displayed

Cause

Remedy

To prevent the shift lever from being operated incorrectly
or the vehicle from moving unexpectedly, a message that
requires shifting the shift position may be displayed on
the multi-information display.

Follow the instruction
of the message and
shift the shift position.

"Shift System Malfunction Apply Parking Brake Securely When Parking
See Owner's Manual"

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

"P Switch Malfunction Apply Parking Brake Securely When Parking
See Owner's Manual"

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

"Shift System Unavailable Apply Parking Brake Securely When Parking
See Owner's Manual"

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

577

9

When tr

ouble arises

"Shift System Malfunction See Owner's Manual"

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

"Shift System Malfunction Stop in a Safe Place See Owner's Manual"

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

"Battery Low Shifting Unavailable See Owner's Manual"

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

"Key Battery Low Replace Key Battery"

Cause

Remedy

The electronic key has a low battery.

Replace the electronic key battery.

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

578

"System Malfunction Visit Your Dealer"

Cause

Remedy

Indicates one of the following systems is disabled.

●

PCS (Pre-Collision System)

●

LDA (Lane Departure Alert)

●

LTA (Lane Tracing Assist)

●

LCA (Lane Change Assist)

*

●

AHB (Automatic High Beam)

●

AHS (Adaptive High-beam System)

*

●

Dynamic radar cruise control system

●

RSA (Road Sign Assist)

*

●

BSM (Blind Spot Monitor)

●

RCTA (Rear Cross Traffic Alert)

●

Automatic Rear Flashing Hazard Lights

●

Safe Exit Assist (with door opening control)

●

Intuitive parking assist

*

●

PKSB (Parking Support Brake)

*

●

RCD (Rear camera detection)

*

●

Have the vehicle inspected
by your Lexus dealer im-
mediately.

* :

If equipped

9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter

579

9

When tr

ouble arises