Lexus GX460 (2022 year). Manual in english — page 29

■

Removing the engine compartment cover

■

Installing the clips

Push up center portion
Insert
Press

Engine compartment cover

NOTICE

■

After installing an engine compartment cover

Make sure the cover is securely installed in its original position.

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

■

Checking the engine oil

Park the vehicle on level ground. After warming up the engine and turning
it off, wait more than 5 minutes for the oil to drain back into the bottom of
the engine.
Holding a rag under the end, pull
the dipstick out.

Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the oil level.

Low
Normal
Excessive

The shape of the dipstick may dif-

fer depending on the type of vehi-

cle or engine.

Wipe the dipstick and reinsert it fully.

Engine oil

3
4
5

2
3

478

■

Adding engine oil

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

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

Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.

■

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 refilled in between oil

maintenance intervals.

●

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, or when driving

while accelerating or decelerating frequently

●

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

heavy traffic

■

After changing the engine oil

The engine oil maintenance data should be reset. Perform the following procedures:

Press

of the meter control switches and select

on the multi-informa-

tion display.
Press

of the meter control switches and select “Vehicle Settings”, and then

press .
Press

of the meter control switches and select “Oil Maintenance”, and then

press .
Select the “Yes” and press

“Reset Complete” will be displayed when the reset procedure has been completed.

Engine oil selection



P. 578

Oil quantity (Low



Full)

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

Items

Clean funnel

2
3

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The coolant level is satisfactory if it is between the “F” and “L” lines on the reser-
voir when the engine is cold.

Reservoir cap
“F”
“L”

If the level is on or below the “L” line, add

coolant up to the “F” line.

WARNING

■

Used engine oil

●

Used engine oil contains potentially harmful contaminants which may cause skin dis-

orders such as inflammation or skin cancer, so care should be taken to avoid pro-

longed 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 your Lexus

dealer, service station or auto parts store for information concerning recycling or dis-

posal.

●

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

NOTICE

■

To prevent serious engine damage

Check the oil level on regular basis.

■

When replacing the engine oil

●

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.

Engine coolant

480

■

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.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50 % coolant and 50 % deion-

ized water. (Minimum temperature: -31



F [-35



C])

Canada: “Toyota Super Long Life Coolant” is a mixture of 55 % coolant and 45 % deion-

ized water. (Minimum temperature: -44



F [-42



C])

For more details about engine coolant, contact your Lexus dealer.

■

If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, engine coolant reservoir cap, radiator cap, drain cock

and water pump. If you cannot find a leak, have your Lexus dealer test the cap and check

for leaks in the cooling system.

WARNING

■

When the engine is hot

Do not remove the radiator cap.

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 cool-

ing. 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 damage to parts or paint.

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Check the radiator and condenser and clear any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condi-
tion, have your vehicle checked by your Lexus dealer.

■

Checking fluid level

The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.

■

Adding fluid

Make sure to check the fluid type and prepare the necessary item.

Radiator and condenser

WARNING

■

When the engine is hot

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

such as burns.

Brake fluid

Fluid type

FMVSS No.116 DOT 3 or SAE J1703 brake fluid

Items

Clean funnel

482

■

Brake fluid can absorb moisture from the air

Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use only

newly opened brake fluid.

WARNING

■

When filling the reservoir

Take care because brake fluid can harm your hands or eyes and damage painted sur-

faces. If fluid gets on your eyes, flush the affected area with clean water immediately. If

you still experience discomfort, see a doctor.

NOTICE

■

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. If the reservoir needs frequent refilling, it may

indicate a serious problem.

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■

Fluid level

The fluid level should be within the appropriate range.

Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)

Hot:

The vehicles has been driven around 50 mph (80 km/h) for 20 min-
utes, or slightly longer in frigid temperatures.
(Fluid temperature, 140



F - 175



F [60



C - 80



C]).

Cold: The engine has not been run for about 5 hours.

(Room temperature, 50



F - 85



F [10



C - 30



C]).

■

Checking the fluid level

Make sure to check the fluid type and prepare the necessary items.

Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall the cap and remove it again.
Check the fluid level.

Power steering fluid

2
3
4

Fluid type

Automatic transmission fluid DEXRON

II or III

Items

Rag or paper, clean funnel (only for adding fluid)

2
3
4
5

484

Check the battery as follows.

■

Battery exterior

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

Terminals
Hold-down clamp

WARNING

■

When checking the reservoir

Take care as the reservoir may be hot.

NOTICE

■

When adding fluid

Avoid overfilling, or the power steering may be damaged.

■

After replacing the reservoir cap

Check the steering box case, vane pump and hose connections for leaks or damage.

Battery

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■

Before recharging

When recharging, the battery produces hydrogen gas which is flammable and explosive.

Therefore, observe the following 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 disconnecting

the charger cables to the battery.

■

After recharging/reconnecting the battery

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

Shift the shift lever to P
Open and close any of the doors.
Restart the engine.

●

Unlocking the doors using the smart access system with push-button start 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 ACCESSORY mode. The engine may not

start with the engine switch turned off. However, the engine will operate normally from

the second attempt.

●

The engine switch mode is recorded by the vehicle. If the battery is 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 before disconnect the battery. Take

extra care when connecting the battery if the engine switch mode prior to discharge is

unknown.

If the system will not start even after multiple attempts, contact your Lexus dealer.

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 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.

■

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 not sufficient ventilation.

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3

486

WARNING

■

How to recharge the battery

Only perform a slow charge (5A or less). The battery may explode if charged at a

quicker rate.

■

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 can soak through clothing on to your skin. Immediately take off the clothing and fol-

low the procedure above if necessary.

●

If you accidentally swallow electrolyte

Drink a large quantity of water or milk. Get emergency medical attention immedi-

ately.

NOTICE

■

When recharging the battery

Never recharge the battery while the engine is running. Also, be sure all accessories

are turned off.

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If any washer does not work or “Wind-
shield Washer Fluid Low” appears on
the multi-information display, the
washer tank may be empty. Add
washer fluid.

Washer fluid

WARNING

■

When adding washer fluid

Do not add washer fluid when the engine is hot or running as washer fluid contains

alcohol and 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.

488

Tires

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.

New tread
Worn tread
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.

Rotate the tires in the order shown.

To equalize tire wear and extend tire life,

Lexus recommends that tire rotation is

carried out at the same interval as tire

inspection.
Do not fail to initialize the tire pressure

warning system after tire rotation.

Replace or rotate tires in accordance with maintenance schedules and tread-
wear.

Checking tires

Tire rotation

2
3

Front

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Your vehicle is equipped with a tire pressure warning system that uses tire pres-
sure warning valves and transmitters to detect low tire inflation pressure before
serious problems arise.

●

If the tire pressure drops below a predetermined level, the driver is warned by
a screen display and a warning light. (



P. 537)

●

The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. (



P. 91)

The illustration used is intended as an

example, and may differ from the image

that is actually displayed on the multi-

information display.

◆

Installing tire pressure warning valves and transmitters

When replacing tires or wheels, tire pressure warning valves and transmitters
must also be installed.
When new tire pressure warning valves and transmitters are installed, new ID
codes must be registered in the tire pressure warning computer and the tire
pressure warning system must be initialized. (



P. 491)

◆

Initializing the tire pressure warning system

■

The tire pressure warning system must be initialized in the following circum-
stances:

●

When changing the tire size.

●

When rotating the tires.

●

When the tire inflation pressure is changed such as when changing travel-
ing speed or load weight.

●

After registering the ID codes. (



P. 491)

When the tire pressure warning system is initialized, the current tire inflation
pressure is set as the benchmark pressure.

Tire pressure warning system

490

■

How to initialize the tire pressure warning system

Park the vehicle in a safe place and stop the engine for 20 minutes or more.

Initialization cannot be performed while the vehicle is moving.

Adjust the tire inflation pressure to the specified cold tire inflation pressure
level. (



P. 584)

Make sure to adjust the tire pressure to the specified cold tire inflation pressure

level. The tire pressure warning system will operate based on this pressure level.

Start the engine. (



P. 200)

Press

of the meter control switches and select

Press

of the meter control switches and select “Vehicle

Settings”, and then press

Press

of the meter control switches and select “TPWS”, and

then press

Press

of the meter

control switches and select “Set
Pressure”, and then press and
hold

until the tire pressure

warning light starts blinking.

A message is displayed on the multi-

information display. Also, “--” is dis-

played for inflation pressure of each

tire on the multi-information display

while the tire pressure warning sys-

tem determines the position.

Drive at approximately 25 mph (40 km/h) or more for approximately 10 to
30 minutes.

When initialization is complete, the inflation pressure of each tire will be displayed

on the multi-information display.
Even if the vehicle is not driven at approximately 25 mph (40 km/h) or more, ini-

tialization can be completed by driving for a long time. However, if initialization

does not complete after driving for 1 hour or more, park the vehicle in a safe place

for approximately 20 minutes and then drive the vehicle again.

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