Lexus NX350h (2022 year). Manual in english - page 39

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.
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 entry & start system or
wireless remote control, and the door opener switches will not operate. Use the me-
chanical 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.)

9-3. If the hybrid system will not start

642

■

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.

•

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.

•

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.

Exhaust hole plug

Exhaust hole

Exhaust hose

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 entry & start system or wireless
remote control.

*1 :

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

9-3. If the hybrid system will not start

643

When tr

ouble arises

Disabling the operation of the driver’s door

Insert a plastic card, etc. into the gap in the
door handle and remove the cover.

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

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

Check that the door cannot be opened.

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

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.

Insert the mechanical key into the opening.

9-3. If the hybrid system will not start

644

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

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.
When disconnecting a 12-volt battery terminal, contact your Lexus dealer.
If a 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.
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.

9-3. If the hybrid system will not start

645

When tr

ouble arises

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.

■

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.

9-3. If the hybrid system will not start

646

●

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

647

When tr

ouble arises

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
booster) 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.

The steering lock system
may be malfunctioning.

Contact your Lexus dealer.

9-3. If the hybrid system will not start

650

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

651

When tr

ouble arises

●

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

Emergency tire puncture repair kit

Towing eyelet

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.

9-4. If a tire is flat

652

WARNING

●

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.

▶

Bottle

Hose

Air release cap

Sticker

▶

Compressor

Power plug

Rubber stopper

Air pressure gauge

Compressor switch

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.

9-4. If a tire is flat

653

When tr

ouble arises

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).

●

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

Remove the deck board.

Take out the emergency tire puncture repair kit.

Repairing a flat tire

WARNING

Observe the following when repairing a flat tire.

9-4. If a tire is flat

654

WARNING

●

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.
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.

Take out the emergency tire puncture repair kit.

9-4. If a tire is flat

655

When tr

ouble arises

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

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

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

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

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

656

WARNING

●

If the hose comes off the valve while inflating the tire, there is a risk that the hose
will move abruptly due to air pressure.

Make sure that the compressor switch is off.

Lift the rubber stopper on the compressor.

Remove the power plug from the compressor.

Connect the power plug to the power outlet socket.

9-4. If a tire is flat

657

When tr

ouble arises

Content .. 37 38 39 40 ..