Lexus NX (2023 year). Manual in english - page 15

Maintenance requirements (for Azerbaijan, Armenia and Russia)

To ensure safe and economical driving, day-to-day care and regular maintenance
are essential. Lexus recommends the following maintenance:

WARNING

■

If your vehicle is not properly maintained

Improper maintenance could result in serious damage to the vehicle and possible death
or serious injury.

■

Handling of the 12-volt battery

12-volt battery posts, terminals and related accessories contain lead and lead com-
pounds which are known to cause brain damage. Wash your hands after handling.

8-3. Maintenance

469

8

Maintenance and car

e

Scheduled maintenance outline (for Azerbaijan, Armenia and Russia)

●

Scheduled maintenance should be performed at specified intervals according to
the maintenance schedule.
The interval for scheduled maintenance is determined by the odometer reading
or the time interval, whichever comes first, shown in the schedule.
Maintenance beyond the last period should be performed at the same intervals.

●

Where to go for the maintenance service?
It makes good sense to take your vehicle to your local Lexus dealer for the
maintenance service as well as other inspections and repairs.
Lexus technicians are well-trained specialists receiving the latest service infor-
mation through technical bulletins, service tips and in-dealership training pro-
grams. They learn to work on all Lexus models before they work on your vehicle,
rather than while they are working on it. Doesn’t that seem like the best way?
Your Lexus dealer has invested a lot of money in special Lexus tools and service
equipment. It helps them to do the job better and at less cost.
Your Lexus dealer’s service department will perform all of the scheduled main-
tenance on your vehicle reliably and economically.
Rubber hoses, such as for the cooling and heater system, brake system, and fuel
system, should be inspected by a qualified technician according to the Lexus
maintenance schedule.
Rubber hoses are particularly important maintenance items. Have any deterio-
rated or damaged hoses replaced immediately. Note that rubber hoses will
deteriorate with age, resulting in swelling, chafing or cracking.

Resetting the engine oil change message

After the engine oil has been replaced, the engine oil maintenance data should be
reset. Peform the following procedure:

1

Select the 

 on the center display.

2

Select [Vehicle customise].

3

Select [Utility].

4

Select [Oil maintenance].

5

Select [Reset].

"The data has been reset." will be displayed on the center display when the reset
procedure has been completed.

8-3. Maintenance

470

Do-it-yourself maintenance

What about do-it-yourself maintenance?
Many maintenance items are easy to do yourself if you have a little mechanical
ability and a few basic automotive tools.
Note, however, that some maintenance tasks require special tools and skills. These
are best performed by qualified technicians. Even if you’re an experienced do-it-
yourself mechanic, we recommend that repairs and maintenance be conducted by
any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Any authorized Lexus retailer or repairer will keep a record of maintenance, which
could be useful should you ever require Warranty Service. Should you choose
to select a qualified and equipped professional other than an authorized Lexus
repairer to service or maintain your vehicle, we recommend that you request that a
record of maintenance be kept.

INFORMATION

■

Does your vehicle need repairs?

Be on the alert for changes in performance and sounds, and visual tip-offs that indicate
service is needed. Some important clues are:

●

Engine misfire (or misses), stumbling or pinging

●

Appreciable loss of power

●

Strange engine noises

●

A fluid leak under the vehicle
However, water dripping from the air conditioning system after use is normal.

●

Change in exhaust sound
This may indicate a dangerous carbon monoxide leak. Drive with the windows open
and have the exhaust system checked immediately.

●

Flat-looking tires, excessive tire squeal when cornering, uneven tire wear

●

Vehicle pulls to one side when driven straight on a level road

●

Strange noises related to suspension movement

●

Loss of brake effectiveness, spongy feeling brake pedal, pedal almost touches the
floor, vehicle pulls to one side when braking

●

Engine coolant temperature continually higher than normal

If you notice any of these clues, take your vehicle to any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer as soon as possible. Your vehicle may
need adjustment or repair.

8-3. Maintenance

471

8

Maintenance and car

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Scheduled maintenance (for Azerbaijan, Armenia and Russia)

Maintenance schedule requirements

Perform maintenance by the schedule as follows:
Your vehicle needs to be serviced according to the normal maintenance schedule.
(See

→

 P.472

)

If you mainly operate your vehicle under one or more of the special operating
conditions below, some of the maintenance schedule items need to be serviced
more frequently in order to keep your vehicle in good condition. (See 

→

 P.475

)

A. Road Conditions

1. Operating on rough or muddy roads, or roads with melted snow or waterlog-

ged roads.

2. Operating on dusty roads. (Roads in areas where their pavement rate is low, or

a cloud of dust often arises and the air is dry.)

3. Operating on road which has road salt applied. (NX250/NX350 only)

B. Driving Conditions

1. Heavily loaded vehicle. (For example, using a car top carrier and so forth.)

2. Extensive idling and/or low speed driving for a long distance such as police,

professional/private use like taxi or door-to-door delivery use.

3. Continuous high speed driving (80% or more of maximum vehicle speed) for

over 2 hours.

Maintenance schedule

Maintenance operations:
I = Inspect, correct or replace as necessary
R = Replace, change or lubricate
T = Tighten to specified torque

SERVICE INTERVAL: ODOMETER READING

MONTH

S

(Odometer reading
or months, whichever
comes first.)

x1000 km

10

2

0

3
0

4
0

5
0

6
0

70

8
0

x1000 miles

6 12 18 24

3
0

3
6

42

4

8

BASIC ENGINE COMPONENTS

8-3. Maintenance

472

SERVICE INTERVAL: ODOMETER READING

MONTH

S

(Odometer reading
or months, whichever
comes first.)

x1000 km

10

2

0

3
0

4
0

5
0

6
0

70

8
0

x1000 miles

6 12 18 24

3
0

3
6

42

4

8

1

Drive belts

I

I

I

I

24

2

Engine oil

Replace when the maintenance reminder ap-
pears.

(1)

3

Engine oil filter

Replace when the maintenance reminder ap-
pears.

(1)

4

Cooling and heater system

(2)

I

I

24

5

Engine coolant (NX350 only:
Including intercooler coolant)

(3)

I

I

-

6

Exhaust pipes and mountings

I

I

I

I

12

IGNITION SYSTEM

7

Spark plugs

NX200/
NX250

Replace every 100000 km (60000 miles)

NX350

R

-

8

Battery

I

I

I

I

I

I

I

I

12

FUEL AND EMISSION CONTROL SYSTEMS

9

Fuel filter

(4)

R

96

10

Fuel injection system

(5)(6)

Add injector cleaner to the fuel tank
every 10000 km (6000 miles)

-

11

Air cleaner filter

I

R

I

R

I: 24

R:48

12

Fuel tank cap, fuel lines, con-
nections and fuel vapor control
valve

(2)

I

I

24

13

Charcoal canister

I

I

24

CHASSIS AND BODY

8-3. Maintenance

473

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Maintenance and car

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SERVICE INTERVAL: ODOMETER READING

MONTH

S

(Odometer reading
or months, whichever
comes first.)

x1000 km

10

2

0

3
0

4
0

5
0

6
0

70

8
0

x1000 miles

6 12 18 24

3
0

3
6

42

4

8

14

Brake pedal and parking
brake

(7)

I

I

I

I

I

I

I

I

6

15

Brake pads and discs

I

I

I

I

I

I

I

I

6

16

Brake fluid

I

I

I

R

I

I

I

R

I: 6

R:24

17

Brake pipes and hoses

I

I

I

I

12

18

Vacuum pump for brake boos-
ter

(8)

Inspect every 200000 km
(120000 miles)

-

19

Steering wheel, linkage and
steering gear box

I

I

I

I

12

20

Drive shaft boots

I

I

I

I

24

21

Suspension ball joints and dust
covers

I

I

I

I

12

22

Automatic transmission fluid
(including front differential)

I

I

24

23

Transfer oil

(9)

I

R

I

R

I: 12

R:48

24

Rear differential oil

(9)

I

R

I

R

I: 12

R:48

25

Propeller shaft

(9)

T

T

T

T

12

26

Front and rear suspension

I

I

I

I

12

27

Tires and inflation pressure

I

I

I

I

I

I

I

I

6

28

Lights, horns, wipers and wash-
ers

I

I

I

I

I

I

I

I

6

29

Air conditioner filter

R

R

R

R

R

R

R

R

12

(1)

Replace both the engine oil and oil filter, even when the maintenance reminder does

not appear, after 12 months have passed, or when driven over 10000 km (6000

8-3. Maintenance

474

miles) since the last oil change. This may cause the maintenance reminder appear

even when driven less than 10000 km (6000 miles).
Replace both engine oil and oil filter every 5000 km (3000 miles) or 6 months,

in which the vehicle is mainly driven in dirt or dusty roads, when the maintenance

reminder does not appear.

(2)

After 80000 km (48000 miles) or 48 months inspection, inspect every 20000 km

(12000 miles) or 12 months.

(3)

First replace at 160000 km (100000 miles), then replace every 80000 km

(50000 miles).

(4)

Including the filter in fuel tank.

(5)

Toyota genuine fuel injector cleaner or equivalent.

(6)

For Azerbaijan and Armenia only.

(7)

Parking brake inspection is not necessary.

(8)

Replace the vacuum pump vane and the vacuum pump vane caps with new ones and

never reuse the vacuum pump vane and the vacuum pump vane caps.

(9)

NX250/NX350 only

 

Additional maintenance schedule

Refer to the following table for normal maintenance schedule items requiring
more frequent service specific to the type of severe conditions. (For outline, see

→

 P.472

)

A-1: Operating on rough or muddy roads, or roads with melted snow or waterlogged
roads.

Inspection

(1)

 of brake pads and discs

Every 5000 km (3000 miles) or 3 months

Inspection

(1)

 of brake pipes and hoses

Every 10000 km (6000 miles) or 6
months

Inspection

(1)

 of suspension ball joints and

dust covers

Every 10000 km (6000 miles) or 6
months

Inspection

(1)

 of drive shaft boots

Every 10000 km (6000 miles) or 12
months

Tightening of bolts of propeller shaft

Every 10000 km (6000 miles) or 6
months

Inspection

(1)

 of steering wheel, linkage and

steering gear box

Every 5000 km (3000 miles) or 3 months

Inspection

(1)

 of front and rear suspension

Every 10000 km (6000 miles) or 6
months

8-3. Maintenance

475

8

Maintenance and car

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A-1: Operating on rough or muddy roads, or roads with melted snow or waterlogged
roads.

Tightening of bolts and nuts on chassis and
body

(2)

Every 10000 km (6000 miles) or 6
months

(1)

Perform correction or replacement as necessary.

(2)

For seat mounting bolts, front and rear suspension member retaining bolts.

 

A-2: Operating on dusty roads. (Roads in areas where their pavement rate is low, or a
cloud of dust often arises and the air is dry.)

Inspection

(1)

 or replacement of air cleaner

filter

I: Every 2500 km (1500 miles) or 3
months
R: Every 40000 km (24000 miles) or 48
months

Inspection

(1)

 of brake pads and discs

Every 5000 km (3000 miles) or 3 months

Tightening of bolts of propeller shaft

Every 10000 km (6000 miles) or 6
months

(1)

Perform correction or replacement as necessary.

 

A-3. Operating on road which has road salt applied. (NX250/NX350 only)

Tightening of bolts of propeller shaft

Every 10000 km (6000 miles) or 6
months

B-1: Heavily loaded vehicle. (For example, using a car top carrier and so forth.)

Inspection

(1)

 of brake pads and discs

Every 5000 km (3000 miles) or 3 months

Inspection

(1)

 or replacement of Automatic

transmission fluid (including front differen-
tial)

I: Every 40000 km (24000 miles) or 24
months
R: Every 80000 km (48000 miles) or 48
months

Replacement of transfer oil (NX250/
NX350 only)

Every 20000 km (12000 miles) or 24
months

Replacement of rear differential oil
(NX250/NX350 only)

Every 20000 km (12000 miles) or 24
months

Tightening of bolts of propeller shaft

Every 10000 km (6000 miles) or 6
months

8-3. Maintenance

476

B-1: Heavily loaded vehicle. (For example, using a car top carrier and so forth.)

Inspection

(1)

 of front and rear suspension

Every 10000 km (6000 miles) or 6
months

Tightening of bolts and nuts on chassis and
body

(2)

Every 10000 km (6000 miles) or 6
months

(1)

Perform correction or replacement as necessary.

(2)

For seat mounting bolts, front and rear suspension member retaining bolts.

 

B-2: Extensive idling and/or low speed driving for a long distance such as police,
professional/private use like taxi or door-to-door delivery use.

Inspection

(1)

 of brake pads and discs

Every 5000 km (3000 miles) or 3 months

Inspection

(1)

 or replacement of Automatic

transmission fluid (including front differen-
tial)

I: Every 40000 km (24000 miles) or 24
months
R: Every 80000 km (48000 miles) or 48
months

(1)

Perform correction or replacement as necessary.

 

B-3: Continuous high speed driving (80% or more of maximum vehicle speed) for over 2
hours.

Inspection

(1)

 or replacement of Automatic

transmission fluid (including front differen-
tial)

I: Every 40000 km (24000 miles) or 24
months
R: Every 80000 km (48000 miles) or 48
months

Replacement of transfer oil (NX250/
NX350 only)

Every 20000 km (12000 miles) or 24
months

Replacement of rear differential oil
(NX250/NX350 only)

Every 20000 km (12000 miles) or 24
months

(1)

Perform correction or replacement as necessary.

 

8-3. Maintenance

477

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Maintenance and car

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Inspection of consumables

Do-it-yourself service precautions

If you perform maintenance by yourself, be sure to follow the correct procedure as
given in the section for each part.

WARNING

The engine compartment contains many mechanisms and fluids that may move suddenly,
become hot, or become electrically charged. Observe the following precautions.

■

When working on the engine compartment

●

Keep hands, clothing and tools away from the moving fan and engine drive belt.

●

Be careful not to touch the engine, radiator, exhaust manifold, etc., right after driving
as they may be hot. Oil and other fluids may also be hot.

●

Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.

●

Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel and
battery fumes are flammable.

●

Be extremely cautious when working on the battery. It contains poisonous and corro-
sive sulfuric acid.

●

Take care because brake fluid can harm your hands or eyes and damage painted
surfaces. If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately. If you still experience discomfort, consult a doctor.

■

When working near the electric cooling fan or radiator grille

Be sure the engine switch is OFF.
With the engine switch in ON, the electric cooling fan may automatically start to run if the
air conditioning is on or the coolant temperature is high.

■

Safety glasses

Wear safety glasses to prevent flying or falling material, fluid spray, etc., from getting in
your eyes.

NOTICE

■

If you remove the air cleaner filter

Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in
the air.

■

If the fluid level is low or high

It is normal for the brake fluid level to go down slightly as the brake pads wear or when
the fluid level in the accumulator is high.

8-4. Inspection of consumables

478

NOTICE

If the reservoir needs frequent refilling, it may indicate a serious problem.

Maintenance

Items which require maintenance and the necessary parts and tools to perform
maintenance on those items are as follows:

■

Battery condition

●

Warm water

●

Baking soda

●

Grease

●

Conventional wrench (for terminal clamp bolts)

●

Distilled water

■

Engine/intercooler coolant level

●

"Toyota Super Long Life Coolant" or a similar high quality ethylene glycol-based
non-silicate, non-amine, nonnitrite and non-borate coolant with long-life hybrid
organic acid technology
"Toyota Super Long Life Coolant" is pre-mixed with 50% coolant and 50%
deionized water.

●

Funnel (used only for adding coolant)

■

Engine oil level

●

"Toyota Genuine Motor Oil" or equivalent

●

Rag or paper towel

●

Funnel (used only for adding engine oil)

■

Fuses

Fuse with same amperage rating as original

■

Light bulbs

Bulb with same number and wattage rating as original

■

NX350: Radiator, condenser and intercooler radiator

-

■

NX200/NX250: Radiator and condenser

-

8-4. Inspection of consumables

479

8

Maintenance and car

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■

Tire inflation pressure

●

Tire pressure gauge

●

Compressed air source

■

Washer fluid

●

Water or washer fluid containing antifreeze (for winter use)

●

Funnel (used only for adding water or washer fluid)

8-4. Inspection of consumables

480

Opening the hood

1

Pull the hood lock release lever.

The hood will pop up slightly.

2

Push the auxiliary catch lever to the left and
lift the hood.

INFORMATION

■

Closing the hood

When closing the hood, make sure to release it from a slightly high position (approxi-
mately 20 cm) to close it.
If the hood is pushed by hand to close it, it may not lock on both sides.

WARNING

■

Pre-driving check

Check that the hood is fully closed and locked.
If the hood is not locked properly, the hood may suddenly open while driving.

8-4. Inspection of consumables

481

8

Maintenance and car

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Engine compartment

Engine compartment components

▶ 

NX200/NX250

A

Fuse boxes 

→

 P.625

B

Engine oil filler cap 

→

 P.486

C

Engine oil level dipstick 

→

 P.484

D

Battery 

→

 P.489

E

Radiator 

→

 P.489

F

Electric cooling fan

G

Condenser 

→

 P.489

H

Washer fluid tank 

→

 P.494

I

Engine coolant reservoir 

→

 P.487

8-4. Inspection of consumables

482

▶ 

NX350

A

Fuse boxes 

→

 P.625

B

Engine oil filler cap 

→

 P.486

C

Battery 

→

 P.489

D

Radiator 

→

 P.489

E

Electric cooling fan

F

Condenser 

→

 P.489

G

Engine oil level dipstick 

→

 P.484

H

Intercooler radiator 

→

 P.489

I

Washer fluid tank 

→

 P.494

J

Intercooler coolant reservoir 

→

 P.487

K

Engine coolant reservoir 

→

 P.487

Checking and adding the engine oil

INFORMATION

■

Engine oil consumption

A certain amount of engine oil will be consumed while driving. In the following situations,
oil consumption may increase, and engine oil may need to be added in between oil
maintenance intervals.

8-4. Inspection of consumables

483

8

Maintenance and car

e

●

When the engine is new, for example directly after purchasing the vehicle or after
replacing the engine

●

If low quality oil or oil of an inappropriate viscosity is used

●

When driving at high engine speeds or with a heavy load, when towing (vehicles with
towing package only), or when driving while accelerating or decelerating frequently

●

When leaving the engine idling for a long time, or when driving frequently through
heavy traffic

WARNING

●

Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation and skin cancer, so care should be taken to avoid
prolonged and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.

●

Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose
of used oil and filters in household trash, in sewers or onto the ground. Call any
authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer, service
station or auto parts store for information concerning recycling or disposal.

●

Do not leave used engine oil within the reach of children.

NOTICE

■

When replacing the engine oil

When replacing the engine oil, observe the following precautions.

●

Be careful not to spill engine oil on the vehicle components.

●

Avoid overfilling, or the engine could be damaged.

●

Check the oil level on the dipstick every time you refill the vehicle.

●

Be sure the engine oil filler cap is properly tightened.

■

If oil is spilled on the engine cover

To prevent the engine cover from being damaged, remove any engine oil from the engine
cover as soon as possible using a neutral detergent. Do not use an organic solvent such
as brake cleaner.

Checking the engine oil

With the engine at operating temperature and turned off, check the oil level on the
dipstick.

8-4. Inspection of consumables

484

NOTICE

To prevent serious engine damage, check the oil level on a regular basis.

1

Park the vehicle on level ground. After warming up the engine and turning off
the engine, wait more than 5 minutes for the oil to drain back into the bottom
of the engine.

2

Holding a rag under the end, pull the dipstick
out.

3

Wipe the dipstick clean.

4

Reinsert the dipstick fully.

5

Holding a rag under the end, pull the dipstick out and check the oil level.

 

A

Low

B

Normal

C

Excessive

The shape of the dipstick may differ depending on
the type of vehicle or engine.

6

Wipe the dipstick and reinsert it fully.

Checking the oil type and preparing the items needed

Make sure to check the oil type and prepare the items needed before adding oil.

▶ 

NX200/NX250

▶ 

NX350

8-4. Inspection of consumables

485

8

Maintenance and car

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●

Engine oil selection

●

Oil quantity (Low 

→

 Full)

1.5 L (1.6 qt., 1.3 Imp.qt.)

●

Items
Clean funnel

 Related Links 

Lubrication system (NX350)(P. 636)
Lubrication system (NX250)(P. 637)
Lubrication system (NX200)(P. 639)

Adding engine oil

If the oil level is below or near the low level mark, add engine oil of the same type as
that already in the engine.

▶ 

NX250

▶ 

NX200

8-4. Inspection of consumables

486

▶ 

NX350

1

Remove the oil filler cap by turning it counterclockwise.

2

Add engine oil slowly, checking the dipstick.

3

Install the oil filler cap by turning it clockwise.

Checking the coolant

The coolant level is satisfactory if it is between the [FULL] and [LOW] lines on the
reservoir when the engine is cold.

■

Engine coolant reservoir

 

▶ 

NX200/NX250

A

Reservoir cap

B

[FULL] line

C

[LOW] line

 

▶ 

NX350

A

Reservoir cap

B

[FULL] line

C

[LOW] line

If the level is on or below the [LOW] line, add coolant up to the [FULL] line.

8-4. Inspection of consumables

487

8

Maintenance and car

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■

Intercooler coolant reservoir (NX350 only)

 

A

Reservoir cap

B

[FULL] line

C

[LOW] line

If the level is on or below the [LOW] line, add
coolant up to the [FULL] line.

INFORMATION

■

Coolant selection

Only use "Toyota Super Long Life Coolant" or a similar high quality ethylene glycol based
non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic
acid technology.
"Toyota Super Long Life Coolant" is a mixture of 50% coolant and 50% deionized water.
(Minimum temperature: -35°C [-31°F])
For more details about coolant, contact any authorized Lexus retailer or Lexus author-
ized repairer, or any reliable repairer.

■

If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, engine coolant reservoir cap, drain cock and water
pump.
If you cannot find a leak, have any authorized Lexus retailer or Lexus authorized repairer,
or any reliable repairer, test the cap and check for leaks in the cooling system.

WARNING

When the engine is hot, do not remove the engine coolant reservoir cap or intercooler
coolant reservoir cap (NX350 only).
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.

NOTICE

■

When adding coolant

Coolant is neither plain water nor straight antifreeze. The correct mixture of water and
antifreeze must be used to provide proper lubrication, corrosion protection and cooling.
Be sure to read the antifreeze or coolant label.

■

If you spill coolant

Be sure to wash it off with water to prevent it from damaging parts or paint.

8-4. Inspection of consumables

488

Checking the radiator, condenser and intercooler radiator

*

Check the radiator, condenser and intercooler and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condition,
have your vehicle inspected by any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.

WARNING

■

When the engine is hot

Do not touch the radiator, condenser or intercooler as they may be hot and cause serious
injuries, such as burns.

■

When the electric cooling fan are operating

Vehicles without smart entry & start system: Do not touch the engine compartment. The
electric cooling fan may keep rotating for about 3 minutes even after the engine switch
is OFF. With the engine switch in ON, the electric cooling fan may automatically start to
run if the air conditioning is on or the coolant temperature is high. Be sure the engine
switch is OFF when working near the electric cooling fan or radiator grille.
Vehicles with smart entry & start system: Do not touch the engine compartment. With
the engine switch in ON, the electric cooling fan may automatically start to run if the air
conditioning is on or the coolant temperature is high. Be sure the engine switch is OFF
when working near the electric cooling fan or radiator grille.

Battery

WARNING

■

Chemicals in the battery

Batteries contain poisonous and corrosive sulfuric acid and may produce hydrogen gas
which is flammable and explosive. To reduce the risk of death or serious injury, take the
following precautions while working on or near the battery:

●

Do not cause sparks by touching the battery terminals with tools.

●

Do not smoke or light a match near the battery.

●

Avoid contact with eyes, skin and clothes.

●

Never inhale or swallow electrolyte.

●

Wear protective safety glasses when working near the battery.

●

Keep children away from the battery.

* : 

If equipped

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WARNING

■

Where to safely charge the battery

Always charge the battery in an open area. Do not charge the battery in a garage or
closed room where there is insufficient ventilation.

■

Emergency measures regarding electrolyte

●

If electrolyte gets in your eyes, flush your eyes with clean water for at least 15 minutes
and get immediate medical attention. If possible, continue to apply water with a
sponge or cloth while traveling to the nearest medical facility.

●

If electrolyte gets on your skin, wash the affected area thoroughly. If you feel pain or
burning, get medical attention immediately.

●

If electrolyte gets on your clothes, it may soak through your clothing on to your skin.
Immediately take off the clothing and follow the procedure above if necessary.

●

If you accidentally swallow electrolyte, drink a large quantity of water or milk and get
emergency medical attention immediately.

■

When there is insufficient battery fluid

Do not use if there is insufficient fluid in the battery. There is a possible danger that the
battery may explode.

Checking the battery

■

Battery exterior

Make sure that the battery terminals are not corroded and that there are no loose
connections, cracks, or loose clamps.

 

▶ 

NX200/NX250

A

Terminals

B

Hold-down clamp

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▶ 

NX350

A

Terminals

B

Hold-down clamp

Before recharging

When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following precautions before recharging:

●

If recharging with the battery installed on the vehicle, be sure to disconnect the
ground cable.

●

Make sure the power switch on the charger is off when connecting and discon-
necting the charger cables to the battery.

NOTICE

When recharging the battery, make sure that the engine is not running and all accesso-
ries are off.

After recharging or reconnecting the battery(vehicles with the smart entry
& start system)

The engine may not start. Follow the procedure below to initialize the system.

1

Change the shift position to P.

2

Open and close any of the doors.

3

Restart the engine.

INFORMATION

●

Unlocking the doors using the smart entry & start system may not be possible
immediately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.

●

Start the engine with the engine switch in ACC. The engine may not start with
the engine switch turned off. However, the engine will operate normally from the
second attempt.

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●

The engine switch mode is recorded by the vehicle. If the battery is disconnected
and reconnected, the vehicle will return the engine switch mode to the status it
was in before the battery was disconnected. Make sure to turn off the engine
switch before disconnecting the battery. Take extra care when connecting the
battery if the engine switch mode prior to the battery being disconnected is
unknown.
If the system will not start even after multiple attempts at all the methods above,
contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.

Checking battery fluid

Check that the level is between the [UPPER LEVEL] and [LOWER LEVEL] lines.

 

▶ 

NX250

A

[UPPER LEVEL] line

B

[LOWER LEVEL] line
If the battery fluid level is at or below the
[LOWER LEVEL] line, add distilled water.

 

▶ 

NX350

A

[UPPER LEVEL] line

B

[LOWER LEVEL] line
If the battery fluid level is at or below the
[LOWER LEVEL] line, add distilled water.

 

▶ 

NX200

A

Blue: Good condition

B

Red: Charging is necessary.
Have the vehicle checked by any author-
ized Lexus retailer or Lexus authorized re-
pairer, or any reliable repairer.

C

Clear: Not working properly.
Not working properly. Add distilled water.

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Adding distilled water

NOTICE

When adding distilled water, avoid overfilling the battery. Spilled battery fluid may cause
corrosion.

1

Remove the vent plug.

2

Add distilled water.

If the [UPPER LEVEL] line cannot be seen, check the battery fluid level by looking
directly at the cell.

 

A

Low

B

O.K.

3

Put the vent plug back on and close it securely.

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Adding washer fluid

If washer fluid does not spray from any of the
washers or "Windshield Washer Fluid Low" is dis-
played on the multi-information display, the
washer fluid bottle may be empty. Add washer
fluid.

WARNING

Do not add washer fluid when the engine is hot or running.
As washer fluid contains alcohol, it may catch fire if spilled on the engine, etc.

NOTICE

■

Do not use any fluid other than washer fluid

Do not use soapy water or engine antifreeze instead of washer fluid. Doing so may cause
streaking on the vehicle’s painted surfaces, as well as damaging the pump leading to
problems of the washer fluid not spraying.

■

Diluting washer fluid

Dilute washer fluid with water as necessary. Refer to the freezing temperatures listed on
the label of the washer fluid bottle.

▶ 

NX200/NX250

▶ 

NX350

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Air conditioning filter maintenance

The air conditioning filter must be changed regularly to maintain air conditioning
efficiency.

Checking interval

Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
required.

●

If air flow from the vents decreases dramatically, the air conditioning filter may
be clogged. Check the filter and replace it if necessary.
(Except for Azerbaijan, Armenia and Russia: For scheduled maintenance in-
formation, please refer to the "Lexus Service Booklet" or "Lexus Warranty
Booklet".)

●

If air fresheners, etc. are used inside the vehicle, the service life of the deo-
dorizing function of the air conditioning filter with deodorizing function may
be reduced significantly. If odors from the air conditioning system become a
concern, replace the filter.

Replacing the air conditioning filter

NOTICE

Observe the following precautions when using the air conditioning system.
Make sure that a filter is always installed. Using the air conditioning system without a filter
may cause damage to the system.

1

Turn the engine switch off.

2

Open the glove box and disconnect the
damper stay from the pin.

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3

Push both the sides of the glove box inward
and disengage each claw on the upper side.
Then, pull the glove box to disengage the
claws on the lower side and remove the
glove box.

4

Unlock the filter cover (  ), pull the filter
cover out of the claws (  ), and remove the
filter cover.

5

Remove the filter case.

6

Remove the air conditioning filter from the
filter case and replace it with a new one.

The [

 UP] marks shown on the filter should be

pointing up.

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Tire maintenance

Tire maintenance

Replace or rotate tires in accordance with maintenance schedules and treadwear.

NOTICE

Take particular care when driving on uneven rough roads with cracks and potholes.
These conditions may cause loss of tire inflation pressure, reducing the cushioning ability
of the tires. Driving on rough roads may also cause damage to the tires themselves, as
well as the vehicle’s wheels and body.

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Tire inspection items

WARNING

■

When inspecting or replacing the tires

Observe the following precautions.
Failure to do so may lead to damage to the drivetrain or unstable handling.

●

Do not mix tires of different makes, models or tread patterns. Also, do not mix tires of
remarkably different treadwear.

●

Do not use tire sizes other than those recommended by Lexus.

●

Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).

●

Do not mix summer, all season and snow tires.

●

Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.

●

Vehicles with a compact spare tire: Do not tow if your vehicle has a compact spare tire
installed.

NOTICE

If tire inflation pressure becomes low while driving, do not continue driving. Otherwise
the tire or wheel may be damaged.

Check if the treadwear indicators are showing on the tires. Also check the tires for
uneven wear, such as excessive wear on one side of the tread.
Check the spare tire condition and pressure if not rotated.

 

A

New tread

B

Worn tread

C

Treadwear indicator
The location of treadwear indicators is
shown by a [TWI] or 

 mark, etc., molded

into the sidewall of each tire.
Replace the tires if the treadwear indicators
are showing on a tire.

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INFORMATION

■

When to replace your vehicle’s tires

Tires should be replaced if:

●

The treadwear indicators are showing on a tire.

●

You have tire damage such as cuts, splits, cracks deep enough to expose the fabric,
and bulges indicating internal damage.

●

A tire goes flat repeatedly or cannot be properly repaired due to the size or location of
a cut or other damage.
If you are not sure, consult with any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.

■

Tire life

Any tire over 6 years old must be checked by a qualified technician even if it has seldom
or never been used or damage is not obvious.

■

If the tread on snow tires wears down below 4 mm (0.16 in.)

The effectiveness of the tires as snow tires is lost.

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Run-flat tire features

*

When run-flat tires are installed, the vehicle can be driven for a maximum of 80 km
(50 miles) at a speed below 80 km/h (50 mph) after any tire goes flat. (However,
the vehicle speed may not increase to near 80 km/h [50 mph] depending on
weather or driving conditions.)
Make sure to replace the flat tire before the vehicle has been driven for near 80
km (50 miles). Also, do not use a repaired tire.

A run-flat tire has a 

 mark on the side wall.

INFORMATION

■

Precautions for run-flat tires

●

The run-flat tires are for only this vehicle. Do not use the tires on other vehicles.

●

Do not mix run-flat tires and normal tires.

●

If non-genuine Lexus wheels are used, it may be impossible to sufficiently demonstrate
the performance of run-flat tires.

* : 

If equipped

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