maintenance LEXUS LX570 2019 Workshop Manual

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LX570_OM_OM60R07U_(U) 6-3. Do-it-yourself maintenance
WARNING ■
Proper inflation is critical to save tire performance
Keep your tires properly inflated.
If the tires are not properly inflated, the following conditions may occur which could
lead to an accident resultin g in death or serious injury: ●
Excessive wear ●
Uneven wear ●
Poor handling ●
Possibility of blowouts resu lting from overheated tires●
Air leaking from between tire and wheel ●
Wheel deformation and/ or tire damage ●
Greater possibility of tire damage while driving (due to road hazards, expansion
joints, sharp edges in the road, etc.)
NOTICE ■
When inspecting and adjust ing tire inflation pressure
Be sure to put the tire valve caps back on.
If a valve cap is not installed, dirt or moisture may get into the valve and cause an air
leak, resulting in decreased tire inflation pressure.

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Maintenance and care
Wheels When replacing wheels, care should be ta ken to ensure that they are equivalent
to those removed in load capacity, diameter, rim width, and inset
* .
Replacement wheels are available at your Lexus dealer.
* : Conventionally referred to as “offset”.
Lexus does not recommend using the following:●
Wheels of different sizes or types ●
Used wheels ●
Bent wheels that have been straightened ●
Use only Lexus wheel nuts and wrenches designed for use with your alumi-
num wheels. ●
When rotating, repairing or changing your tires, check that the wheel nuts are
still tight after driving 1000 miles (1600 km). ●
Be careful not to damage the aluminum wheels when using tire chains. ●
Use only Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels. ■
When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmit-
ters that allow the tire pressure warning system to provide advance warning in the event
of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning
valves and transmitters must be installed. (  P. 489)If a wheel is bent, cracked or heavil y corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause loss of handling
control.
Wheel selection
Aluminum wheel precautions

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WARNING ■
When replacing wheels ●
Do not use wheels that are a different size from those recommended in the Owner’s
Manual, as this may result in a loss of handling control. ●
Never use an inner tube in a leaking wheel which is designed for a tubeless tire. Doing
so may result in an accident, causing death or serious injury. ■
Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air du ring driving, possibly causing an accident.
NOTICE ■
Replacing tire pressure warn ing valves and transmitters●
Because tire repair or replacement may affe ct the tire pressure warning valves and
transmitters, make sure to have tires serviced by your Lexus dealer or other qualified
service shop. In addition, ma ke sure to purchase your tire pressure warning valves
and transmitters at your Lexus dealer. ●
Ensure that only genuine Lexus wh eels are used on your vehicle.
Tire pressure warning valves and transmitte rs may not work properly with non-genu-
ine wheels.

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Maintenance and care
Air conditioning filter Turn the engine switch IGNITION ON mode and switch to recirculated air
mode, then turn the engine switch off.
Open the glove box and remove the separate tray. (  P. 427)
Remove the filter cover.
Remove the filter case.The air conditioning filter must be cl eaned or changed re gularly to maintain
air conditioning efficiency.
Removal method 1
2
3
4

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LX570_OM_OM60R07U_(U) 6-3. Do-it-yourself maintenance
If the filter is dirty, clean by blowing
compressed air through the filter from
the downward side. Hold the air gun 2 in. (5 cm) from the fil-
ter and blow for approximately 2 min-
utes at 72 psi (500 kPa, 5.0 kgf/cm 2
or
bar).
If it is not availa ble, have the filter
cleaned by your Lexus dealer.
Remove the air conditioning filter and
replace it with a new one. The “  UP” marks shown on the filter
should be pointing up.
■
Checking interval
Inspect, clean and replace the air conditio ning filter accordin g to the maintenance
schedule. In dusty areas or area s with heavy traffic flow, more frequent cleaning or early
replacement may be required.
(For scheduled maintenance information, please refer to the “Owner’s Manual
Supplement” or “Scheduled Maintenance”.) ■
If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.Cleaning method
Replacement method
NOTICE ■
To prevent damage to the system●
When using the air conditioning system, make sure that a filter is always installed.●
When cleaning the filter, do no t clean the filter with water.

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Maintenance and care
Electronic key battery ●
Flathead screwdriver ●
Lithium battery (CR2032)
Take out the mechanical key.
Remove the cover. To prevent damage to the key, cover the
tip of the flathead screwdriver with a
tape.
Remove the depleted battery. When removing the cover, if the battery
cannot be seen due to the electronic key
module attaching to the upper cover,
remove the electronic key module from
the cover so that the battery is visible as
shown in the illustration.
Insert a new battery with the “+” termi-
nal facing up.Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery 1
2
3

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Use a CR2032 lithium battery ●
Batteries can be purc hased at your Lexus dealer, loca l 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. ■
When the card key battery needs to be replaced
The battery for the card key is available only at Lexus dealers. Your Lexus dealer can
replace the battery for you. ■
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 rang e will be reduced.
WARNING ■
Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep away
from children. Failure to do so coul d result in death or serious injury.
NOTICE ■
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 co mponent inside the remote control.●
Do not bend either of the battery terminals.

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Maintenance and care
Checking and replacing fuses Turn the engine switch off.
Open the fuse box cover. 
Passenger’s side instrument panel
Remove the cover.
Remove the lid.If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and repl ace the fuses as necessary.1
2 
Engine compartment 
Driver’s side instrument panel
Push the tab in and lift the lid off. Remove the lid.

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LX570_OM_OM60R07U_(U) 6-3. Do-it-yourself maintenance
Remove the fuse with the pull-out tool.
Only type A fuse can be removed using
the pull-out tool.
Check if the fuse is blown.
Normal fuse
Blown fuse Type A and B:
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
Type C and D:
Contact your Lexus dealer. 3
4
1
2
Type A 
Type B
Type C 
Type D

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Maintenance and care ■
After a fuse is replaced ●
If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. (  P. 510)●
If the replaced fuse blows again, have th e vehicle inspected by your Lexus dealer.■
If there is an overload in a circuit
The fuses are designed to blow, protec ting the wiring ha rness from damage.
WARNING ■
To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to th e vehicle, and possibly a fire or injury.●
Never use a fuse of a higher amperage rati ng than indicated, or use any other object
in place of a fuse. ●
Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wi re, even as a temporary fix.●
Do not modify the fuses or the fuse boxes.
NOTICE ■
Before replacing fuses
Have the cause of electrical overload dete rmined and repaired by your Lexus dealer,
as soon as possible.