Lexus UX (2022 year). Manual in english — page 25

434

7-2. Steps to take in an emergency



Left-hand drive vehicles



Right-hand drive vehicles

12

Start the hybrid system. (



P.184)

13

To inject the sealant and inflate the
tire, turn the compressor switch on.

14

Inflate the tire until the recom-
mended pressure is reached.

The sealant will be injected and the
pressure will spike to 300 kPa (3.0
kgf/cm

2

or bar, 44 psi) or 400 kPa

(4.0 kgf/cm

2

or bar, 58 psi), then

gradually decrease.

The air pressure gauge will display
the actual tire inflation pressure
about 1 to 5 minutes after the
switch is turned on.

• Turn the compressor switch off and then

check the tire inflation pressure. Being
careful not to over inflate, check and
repeat the inflation procedure until the
specified tire inflation pressure is
reached.

• The tire can be inflated for about 5 to 20

minutes (depending on the outside tem-
perature). If the tire inflation pressure is
still lower than the specified point after
inflation for 25 minutes, the tire is too

A

B

435

7

7-2. Steps to take in an emergency

Wh
en

troubl
e ar
ises

damaged to be repaired. Turn the com-
pressor switch off and contact any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

• If the tire inflation pressure exceeds the

specified air pressure, let out some air to
adjust the tire inflation pressure.
(



P.436)

15

With the compressor switch off,
pull out the power plug from the
power outlet socket and then dis-
connect the hose from the valve on
the tire.

Some sealant may leak when the hose is

removed.

16

Install the valve cap onto the valve
of the emergency repaired tire.

17

Attach the air release cap to the
end of the hose.

If the air release cap is not attached, the

sealant may leak and the vehicle may get

dirty.

18

Temporarily store the bottle in the
luggage compartment while it is
connected to the compressor.

19

To spread the liquid sealant evenly
within the tire, immediately drive
safely for about 5 km (3 miles)
below 80 km/h (50 mph).

20

After driving, stop your vehicle in a
safe place on a hard, flat surface
and reconnect the repair kit.

Remove the air release cap from the hose

before reconnecting the hose.

21

Turn the compressor switch on and
wait for several seconds, then turn
it off. Check the tire inflation pres-
sure.

If the tire inflation pressure is under
130 kPa (1.3 kgf/cm

2

or bar, 19

psi): The puncture cannot be
repaired. Contact any authorized
Lexus retailer or Lexus authorized
repairer, or any reliable repairer.

If the tire inflation pressure is 130
kPa (1.3 kgf/cm

2

or bar, 19 psi) or

higher, but less than the specified
air pressure: Proceed to step

22

.

If the tire inflation pressure is the

A

B

C

436

7-2. Steps to take in an emergency

specified air pressure (



P.471):

Proceed to step

23

.

22

Turn the compressor switch on to
inflate the tire until the specified air
pressure is reached. Drive for
about 5 km (3 miles) and then per-
form step

20

.

23

Attach the air release cap to the
end of the hose.

If the air release cap is not attached, the

sealant may leak and the vehicle may get

dirty.

24

Store the bottle in the luggage
compartment while it is connected
to the compressor.

25

Taking precautions to avoid sud-
den braking, sudden acceleration
and sharp turns, drive carefully at
under 80 km/h (50 mph) to the
nearest authorized Lexus retailer
or Lexus authorized repairer, or
any reliable repairer that is less than
100 km (62 miles) away for tire
repair or replacement.

For repair and replacement of a tire or dis-

posal of the tire puncture repair kit, contact

any authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.
When having the tire repaired or replaced,

make sure to tell any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer that the sealant is

injected.

Q

If the tire is inflated to more than the

specified air pressure

1

Disconnect the hose from the valve.

2

Install the air release cap to the end of

the hose and push the protrusion on the

air release cap into the valve to let some

air out.

3

Disconnect the hose from the valve,

remove the air release cap from the

hose and then reconnect the hose.

4

Turn the compressor switch on and wait

for several seconds, then turn it off.

Check that the air pressure indicator

shows the specified air pressure is

reached. (



P.471)

If the air pressure is under the desig-

nated pressure, turn the compressor

switch on again and repeat the inflation

procedure until the specified air pres-

sure is reached.

Q

After a tire is repaired with the emer-

gency tire puncture repair kit

O

The tire pressure warning valve and

transmitter should be replaced.

O

Even if the tire inflation pressure is at the

recommended level, the tire pressure

warning light may come on/flash.

WARNING

Q

When fixing the flat tire

O

Stop your vehicle in a safe and flat

area.

437

7

7-2. Steps to take in an emergency

Wh
en

troubl
e ar
ises

WARNING

O

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.

O

Connect the valve and hose securely

with the tire installed on the vehicle.

If the hose is not properly connected to
the valve, air leakage may occur as seal-
ant may be sprayed out.

O

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.

O

After inflation of the tire has com-

pleted, the sealant may splatter when

the hose is disconnected or some air is

let out of the tire.

O

Follow the operation procedure to

repair the tire. If the procedures not

followed, the sealant may spray out.

O

Keep back from the tire while it is

being repaired, as there is a chance of

it bursting while the repair operation is

being performed. If you notice any

cracks or deformation of the tire, turn

off the compressor switch and stop the

repair operation immediately.

O

The repair kit may overheat if oper-

ated for a long period of time. Do not

operate the compressor continuously

for more than 40 minutes.

O

Parts of the repair kit become hot

during operation. Be careful handling

the repair kit during and after opera-

tion. Do not touch the metal part con-

necting the bottle and the compressor.

It will be extremely hot.

O

Do not attach the vehicle speed warn-

ing sticker to an area other than the

one indicated. If the sticker is attached

to an area where an SRS airbag is

located, such as the pad of the steering

wheel, it may prevent the SRS airbag

from operating properly.

Q

Driving to spread the liquid sealant

evenly

Observe the following precautions to

reduce the risk of accidents.

Failing to do so may result in a loss of

vehicle control and cause death or seri-

ous injury.

O

Drive the vehicle carefully at a low

speed. Be especially careful when

turning and cornering.

O

If the vehicle does not drive straight or

you feel a pull through the steering

wheel, stop the vehicle and check the

following:

• Tire condition. The tire may have sepa-

rated from the wheel.

• Tire inflation pressure. If the tire infla-

tion pressure is 130 kPa (1.3 kgf/cm

2

or bar, 19 psi) or less, the tire may be

severely damaged.

NOTICE

Q

When performing an emergency

repair

O

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 possi-

ble.

O

The repair kit is not waterproof. Make

sure that the repair kit is not exposed

to water, such as when it is being used

in the rain.

438

7-2. Steps to take in an emergency

NOTICE

O

Do not put the repair kit directly onto

dusty ground such as sand at the side

of the road. If the repair kit vacuums up

dust, etc., a malfunction may occur.

O

Make sure the sealant bottle of the

repair kit is in a vertical position. The

repair kit does not operate properly

when it is laid.

Q

Precautions for the emergency tire

puncture repair kit

O

The repair kit power source should be

12 V DC suitable for vehicle use. Do

not connect the repair kit to any other

source.

O

If fuel splatters on the repair kit, the

repair kit may deteriorate. Take care

not to allow fuel to contact it.

O

Place the repair kit in a storage to pre-

vent it from being exposed to dirt or

water.

O

Store the repair kit in the luggage

compartment out of reach of children.

O

Do not disassemble or modify the

repair kit. Do not subject parts such as

the air pressure indicator to impacts.

This may cause a malfunction.

Q

To avoid damage to the tire pressure

warning valves and transmitters

When a tire is repaired with liquid seal-

ants, the tire pressure warning valve and

transmitter may not operate properly. If a

liquid sealant is used, contact any autho-

rized Lexus retailer or Lexus authorized

repairer, or any reliable repairer or other

qualified service shop as soon as possi-

ble. After use of liquid sealant, make sure

to replace the tire pressure warning

valve and transmitter when repairing or

replacing the tire. (



P.383)

439

7

7-2. Steps to take in an emergency

Wh
en

troubl
e ar
ises



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



Set the parking brake.



Shift the shift lever to P.



Stop the hybrid system.



Turn on the emergency flashers.
(



P.404)

Jack handle

Towing eyelet

Wheel nut wrench

If you have a flat tire (vehi-
cles with spare tire)

Your vehicle is equipped with a
spare tire. The flat tire can be
replaced with the spare tire.
For details about tires:



P.380

WARNING

Q

If you have a flat tire

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, which could result in an

accident.

Before jacking up the vehicle

Location of the spare tire, jack and tools

A
B
C

440

7-2. Steps to take in an emergency

Spare tire

Jack

1

Pull the lever upwards and open
the deck board.

2

Remove the deck board.

3

Remove the Jack.

D

E

WARNING

Q

Using the tire jack

Observe the following precautions.

Improper use of the tire jack may cause

the vehicle to suddenly fall off the jack,

leading to death or serious injury.

O

Do not use the tire jack for any pur-

pose other than replacing tires or

installing and removing tire chains.

O

Only use the tire jack that comes with

this vehicle for replacing a flat tire.

Do not use it on other vehicles, and do

not use other tire jacks for replacing

tires on this vehicle.

O

Put the jack properly in its jack point.

O

Do not put any part of your body under

the vehicle while it is supported by the

jack.

O

Do not start the hybrid system or drive

the vehicle while the vehicle is sup-

ported by the jack.

O

Do not raise the vehicle while some-

one is inside.

O

When raising the vehicle, do not put an

object on or under the jack.

O

Do not raise the vehicle to a height

greater than that required to replace

the tire.

O

Use a jack stand if it is necessary to get

under the vehicle.

O

When lowering the vehicle, make sure

that there is no-one near the vehicle. If

there are people nearby, warn them

vocally before lowering.

Taking out the jack

441

7

7-2. Steps to take in an emergency

Wh
en

troubl
e ar
ises

1

Unhook the rubber band.

2

Take out the jack.

When stowing the jack, close it by turning
the handle indicated by

until it does

not move anymore, place the jack and fix it
with the rubber band.

1

Remove the side deck boards.
(



P.345, 378)

2

Remove deck under tray.

3

Loosen the center fastener that
secures the spare tire.

1

Chock the tires.

2

Slightly loosen the wheel nuts (one
turn).

3

Turn the tire jack portion

by

hand until the notch of the jack is in
contact with the jack point.

The jack point guides are located under

the rocker panel. They indicate the jack

Taking out the spare tire

WARNING

Q

When storing the spare tire

Be careful not get fingers or other body

parts caught between the spare tire and

the body of the vehicle.

A

Replacing a flat tire

Flat tire

Wheel chock positions

Front left-
hand side

Behind the rear right-hand
side tire

Front right-
hand side

Behind the rear left-hand
side tire

Rear left-
hand side

In front of the front right-
hand side tire

Rear right-
hand side

In front of the front left-
hand side tire

A

442

7-2. Steps to take in an emergency

point positions.

4

Install the wheel nut wrench in jack
handle.

5

Raise the vehicle until the tire is
slightly raised off the ground.

6

Remove all the wheel nuts and the
tire.

When resting the tire on the ground, place

the tire so that the wheel design faces up to

avoid scratching the wheel surface.

WARNING

Q

Replacing a flat tire

O

Do not touch the disc wheels or the

area around the brakes immediately

after the vehicle has been driven.

After the vehicle has been driven the

disc wheels and the area around the

brakes will be extremely hot. Touching

these areas with hands, feet or other

body parts while changing a tire, etc.,

may result in burns.

O

Failure to follow these precautions

could cause the wheel nuts to loosen

and the tire to fall off, resulting in death

or serious injury.

• Never use oil or grease on the wheel

bolts or wheel nuts.

Oil and grease may cause the wheel

nuts to be excessively tightened, lead-

ing to bolt or disc wheel damage. In

addition, the oil or grease can cause

the wheel nuts to loosen and the wheel

may fall off, causing a serious accident.

Remove any oil or grease from the

wheel bolts or wheel nuts.

• Have the wheel nuts tightened with a

torque wrench to 103 N•m (10.5

kgf•m, 76 ft•lbf) as soon as possible

after changing wheels.

• When installing a tire, only use wheel

nuts that have been specifically

designed for that wheel.

443

7

7-2. Steps to take in an emergency

Wh
en

troubl
e ar
ises

1

Remove any dirt or foreign matter
from the wheel contact surface.

If foreign matter is on the wheel contact

surface, the wheel nuts may loosen while

the vehicle is in motion, causing the tire to

come off.

2

Install the spare tire and loosely
tighten each wheel nut by hand by
approximately the same amount.

Tighten the wheel nuts until the tapered

portion

comes into loose contact with

the disc wheel seat

.

3

Lower the vehicle.

4

Firmly tighten each wheel nut two
or three times in the order shown in
the illustration.

Tightening torque:

103 N•m (10.5 kgf•m, 76 ft•lbf)

5

Stow the flat tire, tire jack and all
tools.

Q

The compact spare tire

O

The compact spare tire is identified by

WARNING

• If there are any cracks or deformations

in the bolt screws, nut threads or bolt

holes of the wheel, have the vehicle

inspected by any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

• Do not attach a heavily damaged

wheel ornament, as it may fly off the

wheel while the vehicle is moving.

Q

Replacing a flat tire for vehicles with

power back door

In cases such as when replacing tires,

make sure to cancel the power back

door system (



P.143). Failure to do so

may cause the back door to operate

unintentionally if the power back door

switch is accidentally touched, resulting

in hands and fingers being caught and

injured.

Installing the spare tire

A

B

444

7-2. Steps to take in an emergency

the label “TEMPORARY USE ONLY”

on the tire sidewall.

Use the compact spare tire temporarily,

and only in an emergency.

O

Make sure to check the tire inflation

pressure of the compact spare tire.

(



P.471)

Q

After completing the tire change

The tire pressure warning system must be

reset. (



P.384)

Q

When using the compact spare tire

As the compact spare tire is not equipped

with a tire pressure warning valve and

transmitter, low inflation pressure of the

spare tire will not be indicated by the tire

pressure warning system. Also, if you

replace the compact spare tire after the tire

pressure warning light comes on, the light

remains on.

Q

When the compact spare tire is

attached

The vehicle becomes lower when driving

with the compact spare tire compared to

when driving with standard tires.

Q

If you have a flat front tire on a road cov-

ered with snow or ice

Install the compact spare tire on one of the

rear wheels of the vehicle. Perform the fol-

lowing steps and fit tire chains to the front

tires:

1

Replace a rear tire with the compact

spare tire.

2

Replace the flat front tire with the tire

removed from the rear of the vehicle.

3

Fit tire chains to the front tires.

446

7-2. Steps to take in an emergency

WARNING

Q

When using the compact spare tire

O

Remember that the compact spare tire

provided is specifically designed for

use with your vehicle. Do not use your

compact spare tire on another vehicle.

O

Do not use more than one compact

spare tire simultaneously.

O

Replace the compact spare tire with a

standard tire as soon as possible.

O

Avoid sudden acceleration, abrupt

steering, sudden braking and shifting

operations that cause sudden engine

braking.

Q

When the compact spare tire is

attached

The vehicle speed may not be correctly

detected, and the following systems may

not operate correctly:
• ABS & Brake assist

• VSC

• TRC

• Cruise control (if equipped)

• Dynamic radar cruise control with full-

speed range (if equipped)

• PCS (Pre-Collision System) (if

equipped)

• EPS

• AVS (Adaptive Variable Suspension

system) (if equipped)

• LTA (Lane Tracing Assist) (if

equipped)

• Panoramic view monitor (if equipped)

• Lexus parking assist monitor (if

equipped)

• Lexus parking assist-sensor (if

equipped)

• Navigation system (if equipped)

• BSM (Blind Spot Monitor) (if

equipped)

• AHB (Automatic High Beam) (if

equipped)

• AHS (Adaptive High-beam System) (if

equipped)

Also, not only can the following system

not be utilized fully, but it may even nega-

tively affect the drive-train components:
• E-Four (if equipped)

Q

Speed limit when using the compact

spare tire

Do not drive at speeds in excess of 80

km/h (50 mph) when a compact spare

tire is installed on the vehicle.
The compact spare tire is not designed

for driving at high speeds. Failure to

observe this precaution may lead to an

accident causing death or serious injury.

Q

After using the tools and jack

Before driving, make sure all the tools

and jack are securely in place in their

storage location to reduce the possibility

of personal injury during a collision or

sudden braking.

NOTICE

Q

Be careful when driving over bumps

with the compact spare tire installed

on the vehicle

The vehicle becomes lower when driving

with the compact spare tire compared to

when driving with standard tires. Be

careful when driving over uneven road

surfaces.

447

7

7-2. Steps to take in an emergency

Wh
en

troubl
e ar
ises

Take your vehicle to the nearest autho-
rized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer,
or authorized tire dealer as soon as
possible if any tire goes flat.

The vehicle can be driven for a maximum
of 160 km (100 miles) at a speed below 80
km/h (50 mph) after the tire pressure
warning light comes on. (



P.413)

A run-flat tire has a

mark on the

sidewall.

Q

In some conditions (such as at high tem-

peratures)

You cannot continue driving for up to 160

km (100 miles).

NOTICE

Q

Driving with tire chains and the com-

pact spare tire

Do not fit tire chains to the compact

spare tire.

Tire chains may damage the vehicle

body and adversely affect driving perfor-

mance.

Q

When replacing the tires

When removing or fitting the wheels,

tires or the tire pressure warning valve

and transmitter, contact any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer as the

tire pressure warning valve and transmit-

ter may be damaged if not handled cor-

rectly.

If you have a flat tire (vehi-
cles with run-flat tires)

Your vehicle is not equipped with a
spare tire and emergency tire
puncture repair kit, but instead you
can continue driving the vehicle
with run-flat tires even if any tire
goes flat.
In this case, slow down and drive
with extra caution.

Run-flat tires

448

7-2. Steps to take in an emergency

Q

For the detailed information on run-flat

tires



P.382

One of the following may be the cause
of the problem:



The electronic key may not be func-
tioning properly. (



P.451)



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



P.82)



There may be a malfunction in the
immobilizer system. (



P.86)



There may be a malfunction in the
steering lock system.



The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
(



P.449)

NOTICE

Q

When replacing the tires

When removing or fitting the wheels,

tires or the tire pressure warning valve

and transmitter, contact any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer as the

tire pressure warning valve and transmit-

ter may be damaged if not handled cor-

rectly.

Q

When driving over bumps

If a vehicle has a flat tire, the vehicle

height will be lower than usual. Ensure

that nothing strikes the bottom of the

vehicle.

Q

To avoid damage to the tire pressure

warning valves and transmitters

When a tire is repaired with liquid seal-

ants, the tire pressure warning valve and

transmitter may not operate properly. If a

liquid sealant is used, contact any autho-

rized Lexus retailer or Lexus authorized

repairer, or any reliable repairer or other

qualified service shop as soon as possi-

ble. Make sure to replace the tire pres-

sure warning valve and transmitter when

replacing the tire. (



P.383)

If the hybrid system will not
start

Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:

The hybrid system will not start
even though the correct starting
procedure is being followed.
(



P.184)

449

7

7-2. Steps to take in an emergency

Wh
en

troubl
e ar
ises

One of the following may be the cause
of the problem:



The 12-volt battery may be dis-
charged. (



P.453)



The 12-volt battery terminal con-
nections may be loose or corroded.
(



P.377)

One of the following may be the cause
of the problem:



The 12-volt battery may be dis-
charged. (



P.453)



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



P.377)

Contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable
repairer if the problem cannot be repaired,
or if repair procedures are unknown.

When the hybrid system does not start,
the following steps can be used as an
interim measure to start the hybrid sys-
tem if the power switch is functioning
normally.
Do not use this starting procedure

except in cases of emergency.

1

Press the parking brake switch to
check that the parking brake is set.
(



P.195)

Parking brake indicator will come on.

2

Shift the shift lever to P.

3

Turn the power switch to ACC.

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 sys-
tem may be malfunctioning. Have the
vehicle inspected by any authorized
Lexus retailer or Lexus authorized
repairer, or any reliable repairer.

The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.

The interior lights and head-
lights do not turn on, or the horn
does not sound.

Starting the hybrid system in an
emergency

450

7-2. Steps to take in an emergency

1

Remove the cover inside the lug-
gage compartment by inserting a
screwdriver.

When removing the cover, to prevent

damage, cover the tip of the screwdriver

with a rag.

2

Pull the lever.

If you lose your keys

New genuine mechanical keys can
be made by any authorized Lexus
retailer or Lexus authorized
repairer, or any reliable repairer
using another mechanical key and
the key number stamped on your
key number plate. Keep the plate in
a safe place such as your wallet, not
in the vehicle.

NOTICE

Q

When an electronic key is lost

If the electronic key remains lost, the risk

of vehicle theft increases significantly.

Visit any authorized Lexus retailer or

Lexus authorized repairer, or any reli-

able repairer immediately with all

remaining electronic keys and the card

key (if equipped) that were provided with

your vehicle.

If the fuel filler door cannot
be opened

If the fuel filler door opener switch
cannot be operated, the following
procedure can be used to open the
fuel filler door.

Opening the fuel filler door