Lexus NX250 (2022 year). Manual in english — page 37

WARNING

●

Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.

●

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.

B

Jack handle

C

Wheel bolt socket

D

Towing eyelet

E

Guide pin

F

Wheel bolt wrench

G

Spare tire

H

Screwdriver

Taking out the jack

1

Remove the deck board.

2

Take out the jack.

Taking out the spare tire

WARNING

When storing the spare tire, be careful so that fingers, etc. do not get caught between the
vehicle body and spare tire.

A

Remove the rubber band.

9-4. If a tire is flat

612

1

Remove the deck board.

2

Loosen the center fastener that secures the
spare tire.

Removing a flat tire

WARNING

■

Precautions for replacing a flat tire

●

Do not try to remove the wheel ornament by hand.
Take due care in handling the ornament to avoid unexpected personal injury.

●

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.

■

Setting the power back door when replacing the tires

When replacing a flat tire, make sure to disable the power back door. If not disabled, the
power back door may operate unintentionally, and hands or fingers may be caught and
injured.

1

Chock the tires.

Wheel chock position

●

Flat tire: Front left

9-4. If a tire is flat

613

9

When tr

ouble arises

Place the wheel chock behind the rear right tire.

●

Flat tire: Front right
Place the wheel chock behind the rear left tire.

●

Flat tire: Rear left
Place the wheel chock in front of the front right tire.

●

Flat tire: Rear right
Place the wheel chock in front of the front left tire.

2

Using a wheel bolt wrench, slightly loosen the
wheel bolts (approximately one turn).

3

Turn the tire jack portion by hand until the
notch of the jack is in contact with the jack
point.

WARNING

Make sure the jack is positioned properly in the jack point.

4

Install the wheel bolt wrench to the jack han-
dle.

9-4. If a tire is flat

614

5

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

WARNING

Observe the following precautions when using the jack.

●

Do not put any part of your body under the vehicle while it is supported by the
jack.

●

Do not start the engine or drive the vehicle while the vehicle is supported by the
jack.

●

Do not raise the vehicle while someone is inside.

●

When raising the vehicle, do not put an object on or under the jack.

●

Do not raise the vehicle to a height greater than that required to replace the tire.

●

Use a jack stand if it is necessary to get under the vehicle.

6

Remove the uppermost wheel bolt and install
the guide pin by hand.

Turn the guide pin clockwise to tighten it until it
stops.

WARNING

When removing or installing a tire, make sure to use the guide pin.
Also, the guide pin is made of resin. It may be damaged if the wheel is placed
anywhere other than

or if a large amount of force is applied to the guide pin.

9-4. If a tire is flat

615

9

When tr

ouble arises

7

Remove the remaining wheel bolts 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.

Installing the spare tire

INFORMATION

■

The compact spare tire

Observe the following precautions when installing a spare tire.

●

The compact spare tire is identified by the label “TEMPORARY USE ONLY” on the
tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.

●

Make sure to check the tire inflation pressure of the compact spare tire.

WARNING

Observe the following precautions when using a spare tire.

●

Remember that the compact spare tire provided is specifically designed for use with
your vehicle. Do not use your spare tire on another vehicle.

●

Do not use more than one compact spare tire simultaneously.

1

Remove any dirt or foreign matter from the wheel contact surfaces and wheel
bolts.

If foreign matter is not removed, the wheel bolts may loosen while the vehicle is in
motion, and the wheel may come off.

2

Align a wheel bolt hole on the spare tire with the guide pin, and set the spare
tire on the guide pin.

9-4. If a tire is flat

616

Securely set the spare tire so that its wheel is touching the contact surface.

WARNING

When removing or installing a tire, make sure to use the guide pin.
Also, the guide pin is made of resin. It may be damaged if the wheel is placed
anywhere other than

or if a large amount of force is applied to the guide pin.

3

Loosely tighten each wheel bolt by hand or using a wheel bolt socket .

Push the spare tire to prevent it from falling.
Do not use the wheel bolt socket for anything other than loosely tightening the wheel
bolts by hand.

WARNING

Observe the following precautions. Failure to do so may lead to the wheel bolts
loosening and the tire falling off.

9-4. If a tire is flat

617

9

When tr

ouble arises

WARNING

●

Never apply oil or grease to the wheel bolts or their contact surface on the wheel

.

Doing so may cause the wheel bolts to be tightened excessively, leading to
damage to the wheel bolts, the threaded portion the wheel bolts install to

, or

the wheel.
Also, the wheel bolts may come loose, possibly leading to the wheel coming off,
causing a serious accident.
If oil or grease is attached to either of these parts, remove it.

●

When installing a wheel, use the same wheel bolts that were removed with the
wheel. Also, do not use any wheel bolts other than Lexus Genuine wheel bolts.

●

If a wheel bolt hole in a wheel or the threads of a wheel bolt or the wheel hub are
deformed, cracked, rusty or otherwise damaged, have the vehicle inspected by
your Lexus dealer.

●

Do not install the wheel ornament if it is damaged, as it may fly off the wheel while
the vehicle is being driven.

4

Remove the guide pin and loosely tighten the wheel bolt as in step

3

.

5

Lower the vehicle.

9-4. If a tire is flat

618

WARNING

When lowering the vehicle, make sure that no one is near the vehicle. If there are
people nearby, warn them vocally before lowering the vehicle.

6

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

Tightening torque: 103 ft•lbf (140 N•m, 14.3 kgf•m)

WARNING

●

When tightening the wheel bolts, do not tighten them excessively. Doing so may
cause the wheel bolts, the threads of the wheel hub, or the wheel to be damaged.

●

Have the wheel bolts tightened with a torque wrench to 103 ft•lbf (140 N•m, 14.3
kgf•m) as soon as possible after changing wheels.

7

Stow the flat tire, tire jack and all tools.

INFORMATION

■

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.

9-4. If a tire is flat

619

9

When tr

ouble arises

■

When a compact spare tire is installed

The vehicle becomes lower when driving with the compact spare tire compared to
when driving with standard tires.

WARNING

■

When using the compact spare tire

●

Replace the compact spare tire with a standard tire as soon as possible.

●

Avoid sudden acceleration, abrupt steering, sudden braking and shifting opera-
tions that cause sudden engine braking.

■

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

●

TRAC

●

Trailer Sway Control

●

EPS

●

Dynamic radar cruise control

●

PCS (Pre-Collision System)

●

LTA (Lane Tracing Assist)

●

LDA (Lane Departure Alert)

●

Lexus parking assist monitor

*

●

RSA (Road Sign Assist)

●

Panoramic view monitor

*

●

Intuitive parking assist

●

PKSB (Parking Support Brake)

*

●

Navigation system

*

●

BSM (Blind Spot Monitor)

●

Automatic High Beam

*

●

AHS (Adaptive High-beam System)

*

●

AFS (Adaptive Front-lighting System)

*

●

Tire pressure warning system

* :

If equipped

9-4. If a tire is flat

620

WARNING

Also, not only can the following system not be utilized fully, but it may even negatively
affect the drive-train components:

●

AWD system (AWD models)

■

Speed limit when using the compact spare tire

Do not drive at speeds in excess of 50 mph (80 km/h) 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.

■

After using the tools and jack

After using the tools and jack, before driving, make sure that the tools and jack are
securely stored. Failure to do so may result in injury during a collision or sudden
braking.

NOTICE

■

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.

■

When replacing the tires

When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if not handled correctly.

9-4. If a tire is flat

621

9

When tr

ouble arises

If you get a flat front tire on a snowy or icy road (vehicles with a spare
tire)

NOTICE

Do not install tire chains to a compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.

Install the compact spare tire on the rear of the vehicle. Perform the following steps
and install 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

Install tire chains to the front tires.

Related Links

Replacing a tire with a spare tire (vehicles with a spare tire)(P. 611)

9-4. If a tire is flat

622

Precautions for when you have a flat tire (vehicles with run-flat tires)

Your vehicle is not equipped with a spare tire, 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.
Take your vehicle to the nearest Lexus dealer or authorized tire dealer as soon as
possible if any tire goes flat.
The vehicle can be driven for a maximum of 50 miles (80 km) at a speed below
50 mph (80 km/h) after the tire pressure warning light comes on.

A run-flat tire has a

mark on the side wall.

INFORMATION

■

In some conditions (such as at high temperatures)

You cannot continue driving for up to 50 miles (80 km).

NOTICE

■

When replacing the tires

When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and transmitter
may be damaged if not handled correctly.

■

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.

■

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 or
other qualified service shop as soon as possible. Make sure to replace the tire pressure
warning valve and transmitter when replacing the tire.

9-4. If a tire is flat

623

9

When tr

ouble arises

If a door cannot be opened or locked

If a key has been lost

New genuine mechanical keys can be made by your Lexus dealer 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

If the electronic key remains lost, the risk of vehicle theft increases significantly. Visit
your Lexus dealer immediately with all remaining electronic keys and the card key

*

that were provided with your vehicle.

* :

If equipped

9-5. If a door cannot be opened or locked

624

When the doors/windows/moon roof cannot be operated using an elec-
tronic key

If communication between the electronic key and vehicle is interrupted or the
electronic key cannot be used because the battery is depleted, the smart access
system with push-button start and wireless remote control cannot be used.

The smart access system with push-button start may have been disabled by a
customize setting.
In this case, change the customize setting to enable the smart access system
with push-button start.

NOTICE

When taking the vehicle to your Lexus dealer due to a malfunction of the smart
access system with push-button start, make sure to bring all registered electronic keys
(including the card key).

The electronic key may have been set to battery saving mode.
battery saving mode has been set, cancel it.
The battery of the electronic key may be discharged.

●

Replace the battery.

●

Using the mechanical key.

The battery may be discharged.
Restarting the engine using the jumper (or booster) cables.

Replace the electronic key battery

Replace the battery with a new one if it is depleted.
The battery for the card key is available only at Lexus dealers. Your Lexus dealer
can replace the battery for you.
Prepare the following before replacing the battery:

●

Flathead screwdriver

●

Small flathead screwdriver

●

Lithium battery CR2032

9-5. If a door cannot be opened or locked

625

9

When tr

ouble arises

INFORMATION

■

Use a CR2032 lithium battery

Batteries can be purchased at your Lexus dealer, local electrical appliance shops or
camera stores.

●

Replace only with the same or equivalent type recommended by the manufacturer.

●

Dispose of used batteries according to the local laws.

■

If the electronic key battery is depleted

The following symptoms may occur:

●

The smart access system with push-button start and wireless remote control will not
function properly.

●

The operational range will be reduced.

1

Take out the mechanical key.

2

Remove the cover.

To prevent damage to the key, cover the tip of the
flathead screwdriver with a tape.

3

Remove the depleted battery.

Insert a new battery with the “+” terminal facing
up.

9-5. If a door cannot be opened or locked

626

WARNING

■

Battery precautions

Observe the following precautions. Failure to do so may result in death or serious
injury.

●

Do not swallow the battery. Doing so may cause chemical burns.

●

A coin battery or button battery is used in the electronic key. If a battery is
swallowed, it may cause severe chemical burns in as little as 2 hours and may
result in death or serious injury.

●

Keep away new and removed batteries from children.

●

If the cover cannot be firmly closed, stop using the electronic key and stow the key
in the place where children cannot reach, and then contact your Lexus dealer.

●

If you accidentally swallow a battery or put a battery into a part of your body, get
emergency medical attention immediately.

■

To prevent battery explosion or leakage of flammable liquid or gas

●

Replace the battery with a new battery of the same type. If a wrong type of battery
is used, it may explode.

●

Do not expose batteries to extremely low pressure due to high altitude or ex-
tremely high temperatures.

●

Do not burn, break or cut a battery.

NOTICE

■

When replacing the battery

Use a flathead screwdriver of appropriate size. Applying excessive force may deform
or damage the cover.

■

For normal operation after replacing the battery

Observe the following precautions to prevent accidents:

●

Always work with dry hands.
Moisture may cause the battery to rust.

●

Do not touch or move any other component inside the remote control.

●

Do not bend either of the battery terminals.

9-5. If a door cannot be opened or locked

627

9

When tr

ouble arises