Lexus NX350h (2024 year). Manual in english - page 20

"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 12-volt 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 is indicated on the meter

631

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.

"Maintenance Required for Traction Battery Cooling Parts See Own-
er's Manual"

Cause

Remedy

The air intake vent or filter of the hybrid
battery (traction battery) may be clogged,
the air intake vent may be blocked, or there
may be a gap in the duct. Therefore, per-
form the following correction procedure.

●

Clean the hybrid battery (traction
battery) air intake vent.

If the warning message is shown
even if the vents are cleaned, have
the vehicle inspected by your Lexus
dealer.

 Related Links 

Cleaning the air intake vent(P. 543)

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

632

"EV Mode Unavailable"

Cause

Remedy

The EV drive mode is not available.
The reason the EV drive mode is not available (the vehicle is
idling, battery charge is low, vehicle speed is higher than the
EV drive mode operating speed range or accelerator pedal is
depressed too much) may be displayed.

Use the EV drive
mode when it be-
comes available.

"EV Mode Deactivated"

Cause

Remedy

The EV drive mode is not available.
The reason the EV drive mode is not available (the
battery charge is low, vehicle speed is higher than the
EV drive mode operating speed range or accelerator
pedal is depressed too much) may be displayed.

Drive the vehicle for a
while before attempting
to turn on the EV drive
mode again.

"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.

"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.

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

633

9

When tr

ouble arises

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.

"Shift System Malfunction 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 is indicated on the meter

634

"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.

"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)

●

 PDA (Proactive Driving Assist)

*

●

 BSM (Blind Spot Monitor)

●

 RCTA (Rear Cross Traffic Alert)

●

 Automatic Rear Flashing Hazard Lights

●

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

* : 

If equipped

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

635

9

When tr

ouble arises

Cause

Remedy

●

 Safe Exit Assist

●

Intuitive parking assist

*

●

 PKSB (Parking Support Brake)

*

●

 RCD (Rear camera detection)

*

●

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

"System Stopped See Owner's Manual"

Cause

Remedy

Indicates one of the fol-
lowing systems is disa-
bled.

●

PCS (Pre-Collision
System)

●

LDA (Lane Departure
Alert)

●

LTA (Lane Tracing As-
sist)

●

 LCA (Lane

Change Assist)

*

●

AHB (Automatic High
Beam)

*

●

AHS (Adaptive High-
beam System)

*

●

Dynamic radar cruise
control system

●

 RSA (Road Sign

Assist)

*

●

PDA (Proactive Driv-
ing Assist)

●

 BSM (Blind Spot

Monitor)

●

Follow the following correction methods.

●

Check the voltage of the 12-volt battery

●

Check the sensors that the Lexus Safety System + 3
uses for foreign matter covering them. Remove them
if any. 

(

→

 P.342)

●

Check if the back door is open.

* : 

If equipped

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

636

Cause

Remedy

●

 RCTA (Rear Cross

Traffic Alert)

●

 Safe Exit Assist

●

Intuitive parking assist

*

●

 PKSB (Parking

Support Brake)

*

●

 RCD (Rear camera

detection)

*

●

Follow the following correction methods.

●

Check the voltage of the 12-volt battery

●

Check the sensors that the Lexus Safety System + 3
uses for foreign matter covering them. Remove them
if any. 

(

→

 P.342)

●

Check if the back door is open.

Indicates the sensors may
not be operating properly.

(

→

 P.345)

●

Check the rear bumper around the sensors
used by the BSM, RCTA, Automatic Rear Flash-
ing Hazard Lights, or Safe Exit Assist for for-
eign matter covering them. Remove them if any.

(

→

 P.330,411,434,442,422)

●

Check the sensors including camera sensors
used by the Lexus parking assist-sensor, PKSB, or
RCD for foreign matter covering them. Remove
them if any. 

(

→

 P.411,418)

●

Check the sensors including camera sensors
used by the Lexus parking assist-sensor, PKSB, or
RCD for foreign matter covering them. Remove
them if any. 

(

→

 P.427)

●

When problems are solved and the sensors are
operational, this indication may disappear by it-
self.

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

637

9

When tr

ouble arises

"System Stopped Front Camera Low Visibility See Owner's Manual"

Cause

Remedy

Indicates one of the following systems is dis-
abled.

●

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)

*

●

 PDA (Proactive Driving Assist)

●

Follow the following correction
methods.

●

Using the windshield wipers, re-
move the dirt or foreign matter
from the windshield.

●

Using the air conditioning sys-
tem, defog the windshield.

●

Close the hood, remove any
stickers, etc. to clear the ob-
struction in front of the front
camera.

* : 

If equipped

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

638

"System Stopped Front Camera Out of Temperature Range Wait until
Normal Temperature"

Cause

Remedy

Indicates one of the following sys-
tems 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 Sys-
tem)

*

●

Dynamic radar cruise control sys-
tem

●

 RSA (Road Sign Assist)

*

●

 PDA (Proactive Driving As-

sist)

●

Follow the following correction meth-
ods.

●

If the front camera is hot, such as after
the vehicle is parked in the sun, use the
air conditioning system to decrease the
temperature around the front camera

●

If a sunshade was used when the vehicle
was parked, depending on its type, the
sunlight reflected from the surface of the
sunshade may cause the temperature of
the front camera to become excessively
high

●

If the front camera is cold, such after the
vehicle is parked in an extremely cold
environment, use the air conditioning sys-
tem to increase the temperature around
the front camera

* : 

If equipped

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

639

9

When tr

ouble arises

"System Stopped Front Radar Sensor Blocked Clean Radar Sensor"

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 As-

sist)

*

●

AHB (Automatic High
Beam)

*

●

AHS (Adaptive High-beam
System)

*

●

Dynamic radar cruise control
system

●

 PDA (Proactive Driving

Assist)

●

Follow the following correction methods.

●

Check if there is any foreign matter attached
to the radar sensor or radar sensor cover and
clean them if necessary.

→

 P.342

●

This message may be displayed when driving
in an open area with few nearby vehicles or
structures, such as a desert, grasslands, sub-
urbs, etc.
The message may be cleared by driving the
vehicle in an area with structures, vehicles,
etc. nearby.

"System Stopped Front Radar Sensor Out of Temperature Range Wait
until Normal Temperature"

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

●

 PDA (Proactive Driving Assist)

●

The temperature of the ra-
dar sensor is outside of the
operating range. Wait for
the temperature to become
appropriate.

* : 

If equipped

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

640

"System Stopped Front Radar In Self Calibration See Owner's Manual"

Cause

Remedy

Indicates one of the following sys-
tems 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 Sys-
tem)

*

●

Dynamic radar cruise control sys-
tem

●

 PDA (Proactive Driving As-

sist)

●

Follow the following correction meth-
ods.

●

Check if there is any foreign matter
attached to the radar sensor or radar
sensor cover and clean them if necessa-
ry.

→

 P.342

●

The radar sensor may be misaligned and
will be adjusted automatically while driv-
ing. Continue driving for a while.

"Cruise Control Unavailable See Owner's Manual"

Cause

Remedy

Indicates one of the following systems is disabled.

●

Dynamic radar cruise control

●

Cruise control

A message is displayed when the driving assist switch is
pushed repeatedly.

●

Press the driving as-
sist switch quickly
and firmly.

"Parking Assist Unavailable Low Visibility See Owner's Manual"

Cause

Remedy

Indicates one of the following systems is disa-
bled.

●

RCD (Rear camera detection)

*

●

PKSB (Parking Support Brake)

*

●

Remove any dirt or foreign
matter from the front/rear
cameras.

* : 

If equipped

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

641

9

When tr

ouble arises

"Parking Assist Unavailable Sensor Blocked"

Cause

Remedy

A sensor may be covered with
water drops, ice, snow, dirt, etc.

●

Remove the water drops, ice, snow, dirt,
etc., from the sensor to return the system to
normal.

If a sensor is dirty, the position of the dirty sen-
sor will be shown on the display.

Due to ice forming on a sensor
at low temperatures, a warning
message may be displayed or the
sensor may not be able to detect
an object.

●

Once the ice melts, the system will return
to normal.

If a warning message is displayed
even if the sensor is clean, there
may be a sensor malfunction.

●

Have the vehicle inspected by your Lexus
dealer.Have the vehicle inspected by any
authorized Lexus retailer or Lexus author-
ized repairer, or any reliable repairer.

"Check Engine"

Cause

Remedy

It may indicate a malfunc-
tion.

●

Have the vehicle inspected by your Lexus dealer
immediately.

"Hybrid System Malfunction"

Cause

Remedy

It may indicate a malfunc-
tion.

●

Have the vehicle inspected by your Lexus dealer
immediately.

"Accelerator System Malfunction"

Cause

Remedy

It may indicate a malfunc-
tion.

●

Have the vehicle inspected by your Lexus dealer
immediately.

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

642

"Traction battery system malfunction"

Cause

Remedy

It may indicate a malfunc-
tion.

●

Have the vehicle inspected by your Lexus dealer
immediately.

"Hybrid System Stopped"

Cause

Remedy

The vehicle may have run
out of fuel.

●

Stop the vehicle in a safe place and, if the fuel level
is low, refuel the vehicle.

"Engine stopped No Fuel"

Cause

Remedy

The vehicle may have run
out of fuel.

●

Stop the vehicle in a safe place and, if the fuel level
is low, refuel the vehicle.

"Unavailable Activation Condition not Satisfied See Owner's Manual"

*

Cause

Remedy

 The LCA function cannot be used as

the operating conditions have not been
met.

→

 P.366

●

Operate the turn signal lever again
after all of the operating conditions
are met.

* : 

If equipped

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

643

9

When tr

ouble arises

If the hybrid system will not start

When the hybrid system cannot be started even though the correct
starting procedure is being followed

Cause

Remedy

If the smart access system with
push-button start has been disabled
by a setting, the electronic key may
not operate normally.

Make sure that the smart access system
with push-button start has not been disa-
bled by a customization setting. If the func-
tion has been disabled, enable it.

If the electronic key has been set
to battery saving mode, it may not
operate normally.

Check if electronic key has been set to
battery saving mode. If it is, cancel the
mode.

There may not be sufficient fuel in
the vehicle’s tank.

Refuel the vehicle.

There may be a malfunction in the
immobilizer system.

●

If the key is touching or is covered by
a metallic object, move the key away
from the object.

●

If the key is near to or touching a key to
the security system (key with a built-in
transponder chip) of another vehicle,
move the key away from the other key.

The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery de-
pletion or a blown fuse.

However, depending on the type of mal-
function, a temporary measure is available
to start the hybrid system.

There may be a malfunction in the
shift control system.

*1

Contact your Lexus dealer.

There is a possibility that the tem-
perature of the hybrid battery (trac-
tion battery) is extremely low (ap-
proximately below -22°F [-30°C]).

Try to start the hybrid system again after
the temperature of the hybrid battery in-
creases due to the outside temperature
increase etc.

 Related Links 

Starting the hybrid system in an emergency(P. 645)
Starting the hybrid system when the electronic key is not operating normally (P. 645)
If a warning message is displayed(P. 625)

*1 : 

It may not be possible to shift the shift position from P.

9-3. If the hybrid system will not start

644

Key types(P. 52)
Refueling(P. 177)
Starting the hybrid system(P. 140)
Enable the immobilizer system(P. 74)
Changing the power switch mode(P. 142)

Starting the hybrid system in an emergency

Do not use this starting procedure except in cases of emergency.

1

Pull the parking brake switch to check that the parking brake is set.

Parking brake indicator will come on.

2

Check that the shift position is in P.

3

Turn the power switch to ACC 

*2

.

*3

4

Press and hold the power switch for about 15 seconds while depressing the
brake pedal firmly.

Even if the hybrid system can be started using the above steps, the system may be
malfunctioning.
Have the vehicle checked by your Lexus dealer immediately.

Starting the hybrid system when the electronic key is not operating
normally

1

Ensure that the shift position is in P and depress the brake pedal.

2

Touch the Lexus emblem side of the electronic key to the power switch.

When the electronic key is detected, a buzzer will sound and the power switch mode
will change to ON.
If the smart access system with push-button start has been disabled by a customization
setting, the power switch mode will change to ACC.

*2 : 

ACC mode can be enabled/disabled on a customize setting.

*3 : 

When ACC is disabled, turn the power switch to ON then OFF, and perform the

following steps within 5 seconds.

9-3. If the hybrid system will not start

645

9

When tr

ouble arises

3

Firmly depress the brake pedal and check that a message is shown on the
multi-information display.

4

Press the power switch.

In the event that the hybrid system still cannot be started, contact your Lexus dealer.

INFORMATION

■

Stopping the hybrid system

Shift the shift position to P, set the parking brake and press the power switch as you
normally do when stopping the hybrid system.

■

Electronic key battery

As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.

■

Changing power switch modes

Release the brake pedal and press the power switch in step 

4

 above. The hybrid

system will not start and the mode will be changed each time the switch is pressed.

 Related Links 

Replace the electronic key battery(P. 680)

9-3. If the hybrid system will not start

646

When the interior lights or headlights are dim and the hybrid system
cannot be started

Cause

Remedy

The 12-volt battery may be dis-
charged.

Restarting the hybrid system using the jump-
er (or booster) cables.

The 12-volt battery terminals may
be loose or corroded.

Check if a 12-volt battery terminal is loose or
corroded.

 Related Links 

Restarting the hybrid system when the 12-volt battery is discharged(P. 685)
If the vehicle 12-volt battery is discharged(P. 647)
Key types(P. 52)
Opening/closing the doors(P. 63)
Using the mechanical key(P. 683)
If a door cannot be opened using the door opener switch(P. 689)
When removing the 12-volt battery terminals(P. 651)
Items to initialize(P. 770)

If the vehicle 12-volt battery is discharged

WARNING

■

When replacing the 12-volt battery

●

When the vent plug and indicator are close to the hold down clamp, the battery fluid
(sulfuric acid) may leak.

●

For information regarding 12-volt battery replacement, contact your Lexus dealer.

If the 12-volt battery discharges, it may not be possible to shift the shift position to
other positions.
In this case, the vehicle cannnot be towed without lifting both front wheels because
the front wheels will be locked.

INFORMATION

■

When the 12-volt battery is removed or discharged

●

In some cases, it may not be possible to unlock the doors using the smart access
system with push-button start after the 12-volt battery has been replaced.

9-3. If the hybrid system will not start

647

9

When tr

ouble arises

Use the wireless remote control or the mechanical key to lock or unlock the doors.

●

If the hybrid system cannot be started the first time the power switch is pressed
after removing and installing the 12-volt battery, touch the Lexus emblem side of the
electronic key to the power switch to start the hybrid system.

●

The power switch mode is memorized by the vehicle.
After the 12-volt battery has been recharged or replaced, the power switch will return
to the mode it was in before it was discharged or removed.
Before disconnecting the 12-volt battery, turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery was
discharged, be especially careful when reconnecting the 12-volt battery.

●

Some systems may require initialization.

■

To prevent 12-volt battery discharge

●

Turn off the headlights and the audio system while the hybrid system is off.

●

Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.

■

If the vehicle 12-volt battery is discharged

●

The doors cannot be locked or unlocked using the Smart access system with push-
button start or wireless remote control, and the door opener switches will not operate.
Use the mechanical key to enable/disable manual release handle operation. By
enabling manual release handle operation, the door can be opened.

●

Information recorded by various computers will be cleared.
If the 12-volt battery has become discharged, have the vehicle inspected by your
Lexus dealer.

●

Some systems may require initialization.

■

Charging the 12-volt battery

The electricity stored in the 12-volt battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical
appliances.
If the vehicle is left for a long time, the 12-volt battery may discharge, and the hybrid
system may be unable to start.
(The 12-volt battery recharges automatically while the hybrid system is operating.)

■

When replacing the 12-volt battery

●

Use a 12-volt battery that the case size is same as the previous one (LN2), 20 hour
rate capacity (20HR) is equivalent (60Ah) or greater, and performance rating (CCA)
is equivalent (345A) or greater.

•

If the sizes differ, the 12-volt battery cannot be properly secured.

9-3. If the hybrid system will not start

648

•

If the 20 hour rate capacity of the replacement battery is low, even if the vehicle is
used frequently, the 12-volt battery may discharge and hybrid system may not be
able to start.

●

After replacing the 12-volt battery, install the following to the exhaust holes of the new
12-volt battery.

*1

•

Use the exhaust hose that was attached to the removed 12-volt battery and make
sure that it is securely engaged to the hole in the vehicle.

•

Use the exhaust hole plug that is included with the new 12-volt battery or the one
installed to the removed 12-volt battery.

Contact your Lexus dealer for details.

 

A

Exhaust hole plug

B

Exhaust hole

C

Exhaust hose

D

Hole in vehicle

When the doors cannot be locked from outside the vehicle after the 12-volt
battery was discharged

The doors cannot be locked using the Smart access system with push-button start
or wireless remote control.

Disabling the operation of the driver’s door

1

Insert a plastic card, etc. into the gap in the
door handle to pry up the cover.

To avoid damage, do not apply excessive force to
the cover.

*1 : 

The exhaust holes of the new 12-volt battery may be plugged.

9-3. If the hybrid system will not start

649

9

When tr

ouble arises

2

Remove the cover by pressing it on the rear.

3

Using the mechanical key, turn the door lock
to the lock side to disable the door.

4

Check that the door cannot be opened.

Disabling the operation of doors other than the driver’s door

1

Open the door. Using the mechanical key,
slide the cover as shown in the illustration.

To avoid damage, do not apply excessive force to
the cover.

2

Insert the mechanical key into the opening.

3

Remove the mechanical key and slide the
emergency lock cover back to its original
position.

9-3. If the hybrid system will not start

650

4

Check that all of the doors cannot be opened.

When removing the 12-volt battery terminals

When disconnecting a 12-volt battery terminal, contact your Lexus dealer.
If a 12-volt battery terminal is disconnected, the doors will not be able to be opened
using the door opener switches and the electronic key may become trapped in the
vehicle.
To prevent the electronic key (mechanical key) from being locked inside the
vehicle, make sure to remove it from the vehicle before disconnecting a 12-volt
battery terminal.

If the electronic key (mechanical key) is to be left in the vehicle, make sure to open
a window so an inside manual release handle can be operated.

WARNING

■

When removing the 12-volt battery terminals

Always remove the negative (-) terminal first. If the positive (+) terminal contacts any
metal in the surrounding area when the positive (+) terminal is removed, a spark may
occur, leading to a fire in addition to electrical shocks and death or serious injury.

■

Avoiding 12-volt battery fires or explosions

Observe the following precautions to prevent accidentally igniting the flammable gas that
may be emitted from the 12-volt battery:
Do not smoke, use matches, cigarette lighters or allow open flame near the 12-volt
battery.

9-3. If the hybrid system will not start

651

9

When tr

ouble arises

WARNING

■

12-volt battery precautions

The 12-volt battery contains poisonous and corrosive acidic electrolyte, while related
parts contain lead and lead compounds. Observe the following precautions when han-
dling the 12-volt battery:

●

When working with the 12-volt battery, always wear safety glasses and take care not
to allow any battery fluids (acid) to come into contact with skin, clothing or the vehicle
body.

●

Do not lean over the 12-volt battery.

●

In the event that battery fluid comes into contact with the skin or eyes, immediately
wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.

●

Always wash your hands after handling the 12-volt battery support, terminals, and
other battery-related parts.

●

Do not allow children near the 12-volt battery.

INFORMATION

■

If a 12-volt battery terminal has been disconnected

●

If a 12-volt battery terminal has been disconnected, the doors cannot be locked or
unlocked using the Smart access system with push-button start system or wireless
remote control, and the door opener switches will not operate.
Make sure to remove the electronic key (mechanical key) from the vehicle before
disconnecting a 12-volt battery terminal.
If the electronic key (mechanical key) is to be left in the vehicle, open a window so an
inside manual release handle can be operated.

●

The doors may not be able to be unlocked using the Smart access system with
push-button start immediately after a 12-volt battery terminal is disconnected and
reconnected.
If the doors cannot be unlocked, use the wireless remote control or mechanical key to
lock and unlock the doors.

●

When a 12-volt battery terminal is disconnected, information recorded by various
computers will be cleared.

●

Some systems may require initialization.

9-3. If the hybrid system will not start

652

When the interior lights or headlights do not illuminate and the hybrid
system cannot be started

Cause

Remedy

The 12-volt battery
may be discharged.

Restarting the hybrid system using the jumper (or boos-
ter) cables.
Contact your Lexus dealer if the problem cannot be
repaired, or if repair procedures are unknown.

One or both of the 12-
volt battery terminals
may be disconnected.

Check if a 12-volt battery terminal is disconnected.
Contact your Lexus dealer if the problem cannot be
repaired, or if repair procedures are unknown.

 Related Links 

Restarting the hybrid system when the 12-volt battery is discharged(P. 685)
If the vehicle 12-volt battery is discharged(P. 647)
Key types(P. 52)
Locking/unlocking the doors(P. 67)
Opening/closing the doors(P. 63)
Using the mechanical key(P. 683)
If a door cannot be opened using the door opener switch(P. 689)
When removing the 12-volt battery terminals(P. 651)
Items to initialize(P. 770)

9-3. If the hybrid system will not start

653

9

When tr

ouble arises

When the horn sounds at a low volume and the hybrid system cannot be
started

Cause

Remedy

The 12-volt battery may be dis-
charged.

Restarting the hybrid system using the
jumper (or booster) cables.

The 12-volt battery terminal connec-
tions may be loose or corroded.

The 12-volt battery terminals may be loose
or corroded.

 Related Links 

Restarting the hybrid system when the 12-volt battery is discharged(P. 685)
If the vehicle 12-volt battery is discharged(P. 647)

9-3. If the hybrid system will not start

654

When the horn does not sound and the hybrid system cannot be started

Cause

Remedy

The 12-volt battery may
be discharged.

Restarting the hybrid system using the jumper (or boos-
ter) cables.
Contact your Lexus dealer if the problem cannot be
repaired, or if repair procedures are unknown.

One or both of the 12-
volt battery terminals
may be disconnected.

Check if a 12-volt battery terminal is loose.
Contact your Lexus dealer if the problem cannot be
repaired, or if repair procedures are unknown.

 Related Links 

If the vehicle 12-volt battery is discharged(P. 647)
Restarting the hybrid system when the 12-volt battery is discharged(P. 685)

9-3. If the hybrid system will not start

655

9

When tr

ouble arises

If a tire is flat

Repairing a tire with the emergency tire puncture repair kit (vehicles
with an emergency tire puncture repair kit)

Your vehicle is not equipped with a spare tire, but instead is equipped with an
emergency tire puncture repair kit.
A puncture caused by a nail or screw passing through the tire tread can be
repaired temporarily with the emergency tire puncture repair kit. (The kit contains
a bottle of sealant. The sealant can be used only once to temporarily repair one tire
without removing the nail or screw from the tire.)
After temporarily repairing the tire with the kit, have the tire repaired or replaced
by your Lexus dealer.

WARNING

Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the wheel beyond
repair.
Driving with a flat tire may cause a circumferential groove on the side wall. In such a case,
the tire may explode when using the emergency tire puncture repair kit, resulting in death
or serious injury.

INFORMATION

■

A flat tire that cannot be repaired with the emergency tire puncture repair kit

In the following cases, the tire cannot be repaired with the emergency tire puncture
repair kit.
Contact your Lexus dealer.

●

When the tire is damaged due to driving without sufficient air pressure

●

When the tire lost air pressure due to a crack or damage in the tire sidewall

●

When the tire is visibly separated from the wheel

●

When the cut or damage to the tread is 0.16 in. (4 mm) long or more

●

When the wheel is damaged

●

When two or more tires have been punctured

●

When there is more than one hole or cut in the damaged tire

●

When the sealant has expired

Preparing to use the emergency tire puncture repair kit

Before using the emergency tire puncture repair kit, perform the following.

9-4. If a tire is flat

656

●

Stop the vehicle in a safe place on a hard, flat surface.

●

Set the parking brake.

●

Change the shift position to P.

●

Stop the hybrid system.

●

Turn on the emergency flashers.

●

Check the degree of the tire damage.

A tire should only be repaired with the emergency tire puncture repair kit if the damage
is caused by a nail or screw passing through the tire tread.

•

Do not remove the nail or screw from the tire. Removing the object may widen the
opening and disenable emergency repair with the kit.

•

To avoid sealant leakage, move the vehicle until the area of the puncture, if known, is
positioned at the top of the tire.

Storage position of the emergency tire puncture repair kit and tool

A

Emergency tire puncture repair kit

B

Towing eyelet

*

* : 

If equipped

9-4. If a tire is flat

657

9

When tr

ouble arises

C

Screwdriver

Emergency tire puncture repair kit details/name of each part

WARNING

■

Precautions for handling the emergency tire puncture repair kit

●

The emergency tire puncture repair kit is made exclusively for your vehicle. Do not use
it on other vehicles.

●

Do not use the emergency tire puncture repair kit for tires that are a different size than
the specified ones or for any other purpose.
Doing so may cause the tires to not be repaired properly.

■

Precautions for use of the sealant

●

Ingesting the sealant is hazardous to your health. If you ingest sealant, consume as
much water as possible, then immediately consult a doctor.

●

If sealant gets in eyes or adheres to skin, immediately wash it off with water. If
discomfort persists, consult a doctor.

■

Emergency tire puncture repair kit (type A)

 

▶ 

Bottle

A

Hose

B

Air release cap

C

Sticker

 

▶ 

Compressor

A

Power plug

B

Rubber stopper

C

Air pressure gauge

D

Compressor switch

9-4. If a tire is flat

658

■

Emergency tire puncture repair kit (type B)

 

▶ 

Bottle

A

Sticker

 

▶ 

Compressor

A

Air pressure gauge

B

Compressor switch

C

Power plug

D

Hose

E

Air release cap

INFORMATION

■

Handling the emergency tire puncture repair kit/sealant

●

The emergency tire puncture repair kit is designed to inflate vehicle tires.

●

Do not use to check or to adjust the tire pressure.

●

The kit is exclusively designed for size and type of tires originally installed on your
vehicle. Do not use it for tires that a different size than the original ones, or for any
other purposes.

●

The sealant stored in the emergency tire puncture repair kit can be used only once to
temporarily repair a single tire.
If the sealant in the bottle and other parts of the kit have been used and need to be
replaced, contact your Lexus dealer.

●

The sealant can be used when the outside temperature is from -40°F (-40°C) to
140°F (60°C).

9-4. If a tire is flat

659

9

When tr

ouble arises

●

If the sealant gets on your clothes, it may stain.

●

If the sealant adheres to a wheel or the surface of the vehicle body, the stain may not
be removable if it is not cleaned at once. Immediately wipe away the sealant with a wet
cloth.

●

The compressor can be used repeatedly.

●

During operation of the kit, a loud operation noise is produced. This does not indicate
a malfunction.

■

Checking the sealant

The sealant has a limited lifespan. Check the sealant expiration date occasionally.
The expiration date is printed on the bottle.
The sealant should be replaced before the expiry date. Contact your Lexus dealer.
Do not use sealant whose expiry date has already passed. Otherwise, repairs conducted
using the emergency tire puncture repair kit may not be performed properly.

■

When disposing of the liquid sealant

The liquid sealant contains materials which are harmful to the environment. When
disposing of liquid sealant or a liquid sealant bottle, contact your Lexus dealer or contact
your local government for information on the appropriate authorized waste disposal
method.

Taking out the emergency tire puncture repair kit

1

Remove the deck board.

2

Take out the emergency tire puncture repair kit.

Repairing a flat tire (type A)

WARNING

Observe the following when repairing a flat tire.

●

Stop your vehicle in a safe and flat area.

●

Do not touch the wheels or the area around the brakes immediately after the vehicle
has been driven.

9-4. If a tire is flat

660

WARNING

After the vehicle has been driven, the wheels and the area around the brakes may be
extremely hot. Touching these areas with hands, feet or other body parts may result in
burns.

●

Perform repairs according to the specified procedure.
If the procedure is not followed, the tire sealant may spray.

NOTICE

■

Precautions for repairing a flat tire

●

Perform the emergency repair without removing the nail or screw that has punctured
the tread of the tire. If the object that has punctured the tire is removed, repair by the
emergency tire puncture repair kit may not be possible.

●

The kit is not waterproof. Make sure that the kit is not exposed to water, such as when it
is being used in the rain.

●

Do not put the kit directly onto dusty ground such as sand at the side of the road. If the
kit vacuums up dust, etc., a malfunction may occur.

●

Make sure to stand the kit with the bottle vertical. The kit cannot work properly if it is
laid on its side.

■

Handling the emergency tire puncture repair kit

●

The compressor power source should be 12 V DC suitable for vehicle use. Do not
connect the compressor to any other source.

●

Take care not to allow gasoline to contact the emergency tire puncture repair kit. If
gasoline splatters on the kit, it may deteriorate.

●

Place the repair kit in a storage to prevent it from being exposed to dirt or water.

●

Store the kit in its assigned place out of reach of children.

●

Do not disassemble or modify the kit. Do not subject parts such as the air pressure
indicator to impacts. This may cause a malfunction.

■

To avoid damage to the tire pressure warning valves and transmitters

When a tire is repaired with liquid sealants, the tire pressure warning valve and transmit-
ter may not operate properly. If a liquid sealant is used, contact your Lexus dealer as soon
as possible. After use of liquid sealant, make sure to replace the tire pressure warning
valve and transmitter when repairing or replacing the tire.

1

Take out the emergency tire puncture repair kit.

2

Remove the valve cap from the valve of the punctured tire.

9-4. If a tire is flat

661

9

When tr

ouble arises

3

Extend the hose. Remove the air release cap from the hose.

Attach the sticker enclosed with the bottle on the specified locations.(See step 

10

.)

The air release cap may be used later. Therefore keep it in a safe place.

4

Connect the hose to the valve of the flat tire.

Screw the end of hose clockwise as far as possible.

WARNING

Check the following.

●

Make sure that the valve and hose are securely connected, with the tire installed
on the vehicle.

●

If the hose is not properly connected to the valve, air leakage may occur or sealant
may be sprayed out.

9-4. If a tire is flat

662