air condition lexus LC500 2018 Workshop Manual

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5-3. Using the air conditioning system
higher according to the fan speed of the air conditioning system.
■Customization
Steering wheel heating preference in auto- matic mode and the automatic mode set-tings for the seat heaters and ventilators can
be changed. (Customizable features: P.423)
WARNING
■To prevent overheating and minor burn injuries
Observe the following precautions when using the seat heaters.
●Do not cover the seat with a blanket or
cushion when using the seat heater.
●Do not use seat heater more than nec- essary.

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5-5. Using the storage features
1Using with half-open: Slide the
armrest as far back while pressing
the button.
Press the button to close.
2 Using with fully open: Lift the arm-
rest while pulling the knob.
■Console box light
The console box light turns on when the tail lights are on.
■Using the auxiliary box
Do not place cups, beverage cans, etc. in the auxiliary box.
To open, press down and release the
cup holder lid.
Console box/auxiliary box
WARNING
■When closing the console box
Take care to prevent your fingers etc. from being caught.
NOTICE
■To prevent damage to the console box
●Do not pull the knob while sliding the armrest.
●Do not apply excessive force to the armrest.
Cup holder
WARNING
■Items unsuitable for the cup holder
Do not place anything other than a cup
or beverage can in the cup holder. Even when the lid is closed, items must not be stored in the cup holder.
Other items may be thrown out of the holder in the event of an accident or sud-den braking, causing injury. If possible,
cover hot drinks to prevent burns.
NOTICE
■To prevent damage to the cup holder and air conditioning control switches
●Do not apply excessive force to the cup holder.
●Take care when placing a tall bottle in the cup holder. When the bottle is
taken out or the brakes are suddenly applied, the bottle may hit the air con-ditioning control switches, causing
damage to the switches or parts of the air conditioning system.

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5-6. Using the other interior features
Interior features
WARNING
●If the 12-volt battery’s voltage decreases or there is a disconnection, the system may not be able to access
the Public Safety Answering Point (PSAP).
■When replacing DCM to a new one
ERA-GLONASS have to be activated. Contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
■For your safety
●Please drive safely.The function of this system is to assist
you in making the Emergency Call in case of accidents as traffic accidents or sudden medical emergencies, and it
does not protect the driver or the pas- sengers in any way. Please drive safely and fasten your seatbelts at all times
for your safety.
●In case of an emergency, make lives the top priority.
●If you smell anything burning or another unusual smell, do not stay
inside the vehicle and evacuate to a safe area immediately.
●Since the system detects shocks, the automatic reporting may not always
occur synchronized with the operation of the airbag system. (If the vehicle is bumped from behind, etc.)
●The airbag may not inflate even in case
of an accident, if it does not involve high impact. In such cases, the system may not make emergency calls auto-
matically. The system may also not make automatic emergency calls even if the airbag has been inflated. If any of
these should occur, please report to the Public Safety Answering Point (PSAP) by operating the “SOS” but-
ton.
●For safety, do not make the Emergency Call while driving.
Making calls during driving may cause mishandling of th e steering wheel, which may lead to unexpected acci-
dents. Stop the vehicle and confirm the safety of the area before making the Emer-
gency Call.
●When changing fuses, please use fuses that correspond to the described stan-dard.
If you use fuses other than those described, it may cause ignition or smoke in the circuit and may lead to a
fire.
●Using the system while there is smoke or an unusual smell may cause a fire. Stop using the system immediately and
consult any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
NOTICE
■To prevent damage
Do not pour any liquid on to the “SOS”
button panel etc. and make any impact to it.
■If the “SOS” button panel malfunc-tions
It may not be able to make the Emer-
gency Call or inform you of the correct condition of the system. If the “SOS” but-ton panel has been broken, please con-
sult any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

6
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6
Maintenance and care
Maintenance and care
6-1. Maintenance and care
Cleaning and protecting the vehi-
cle exterior ................................ 304
Cleaning and protecting the vehi-
cle interior ................................. 307
6-2. Maintenance
Maintenance requirements ... 312
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions
......................................................... 314
Hood ............................................... 316
Positioning a floor jack............. 316
Engine compartment................ 318
12-volt battery............................. 325
Tires ................................................ 327
Replacing the tire ...................... 339
Tire inflation pressure.............. 345
Wheels .......................................... 346
Air conditioning filter............... 347
Electronic key battery ............. 349
Checking and replacing fuses
........................................................ 350
Light bulbs .................................... 355

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6-2. Maintenance
6-2.Maintenance
■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recommends that maintenance service operations as well as
other inspections and repairs be carried out by authorized Lexus retailer or Lexus authorized repairer, or any reliable repair-
ers. For repairs and services covered by your warranty, please visit an authorized Lexus retailer or repairer, who will use gen-
uine Lexus parts in repairing any difficulties you may encounter. There can also be advantages in utilizing authorized Lexus
retailers or repairers for non-warranty repairs and services, as members of the Lexus network will be able to expertly assist
you with any difficulties you may encounter.
Your Lexus retailer or Lexus authorized
repairer, or any reliable repairer will per- form all of the scheduled maintenance on your vehicle reliably and economically due
to their experience with Lexus vehicles.
Scheduled maintenance should be
performed at specified intervals
according to the maintenance sched-
ule.
For details about maintenance items and
schedules, refer to the “Lexus Service
Booklet” or “Lexus Warranty Booklet”.
What about do-it-yourself mainte-
nance?
Many of the 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 techni-
cians. 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.
■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 missing, stumbling or pinging
Maintenance requirements
To ensure safe and economical driv-
ing, day-to-day care and regular
maintenance are essential. Lexus
recommends the following mainte-
nance:
WARNING
■If your vehicle is not properly main-
tained
Improper maintenance could result in
serious damage to the vehicle and possi- ble death or serious injury.
■Handling of the 12-volt battery
12-volt battery posts, terminals and related accessories contain lead and lead compounds which are known to
cause brain damage. Wash your hands after handling. ( P.325)
Scheduled maintenance
Do-it-yourself maintenance

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6-2. Maintenance
Maintenance and care
●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 indi-
cate a dangerous carbon monoxide leak. Drive with the windows open and have the exhaust system checked immedi-
ately.)
●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 feel-
ing brake pedal, pedal almost touches the floor, vehicle pulls to one side when brak-ing
●Engine coolant temperature continually higher than normal ( P.88)
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.

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6-3. Do-it-yourself maintenance
6-3.Do-it-yourself maintenance
Do-it-yourself service pre-
cautions
If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure as given in these
sections.
Maintenance
ItemsParts and tools
12-volt battery
condition
( P.325)
•Grease
• Conventional wrench
(for terminal clamp
bolts)
Engine coolant
level (LC500)
( P.322)
• “Toyota Super Long Life
Coolant” or a similar
high quality ethylene
glycol-based non-sili-
cate, non-amine, non-
nitrite 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/power
control unit
coolant level
(LC500h)
( P.322)
• “Toyota Super Long Life
Coolant” or a similar
high quality ethylene
glycol-based non-sili-
cate, non-amine, non-
nitrite 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
( P.319)
•“Toyota Genuine Motor
Oil” or equivalent
• Rag or paper towel
•Funnel (used only for
adding engine oil)
Fuses
( P.350)
•Fuse with same amper-
age rating as original
Light bulbs
( P.355)
• Bulb with same number
and wattage rating as
original
Radiator and
condenser
( P.323)

Tire inflation
pressure
( P.345)
• Tire pressure gauge
• Compressed air source
Washer fluid
( P.324)
• Water or washer fluid
containing antifreeze
(for winter use)
•Funnel (used only for
adding water or washer
fluid)
ItemsParts and tools

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6-3. Do-it-yourself maintenance
Maintenance and care
WARNING
The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become elec-
trically energized. To avoid death or seri- ous injury, observe the following precautions.
■When working on the engine com-
partment
●LC500h: Make sure that the “IGNI-
TION ON” on the multi-information display and the “READY” indicator are both off.
●Keep hands, clothing and tools away
from the moving fan and engine drive belt.
●LC500: 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.LC500h: Be careful not to touch the
engine, power control unit, radiator, exhaust manifold, etc. right after driv-ing 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. Fuel fumes are flammable.
●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 imme-
diately. If you still experience discomfort, con-sult a doctor.
■When working near the electric cool-ing fan or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode , the electric cooling fan may automatically
start to run if the air conditioning is on and/or the coolant temperature is high. ( P.323)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from get-
ting 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. If the reservoir needs frequent refilling, it may indicate a serious problem.

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6-3. Do-it-yourself maintenance
■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 loca- tion of a cut or other damage
If you are not sure, consult 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 sel-
dom or never been used or damage is not obvious.
■Low profile tires (21-inch tires)
Generally, low profile tires will wear more rapidly and tire grip performance will be reduced on snowy and/or icy roads when
compared to standard tires. Be sure to use snow tires on snowy and/or icy roads and drive carefully at a speed appropriate for
road and weather conditions.
■If the tread on snow tires wears down below 4 mm (0.16 in.)
The effectiveness of the tires as snow tires is lost.
Rotate the tires in the order shown.
WARNING
■When inspecting or replacing tires
Observe the following precautions to
prevent accidents. Failure to do so may cause damage to parts of the drivetrain as well as danger-
ous handling characteristics, which may lead to an accident resulting in death or serious injury.
●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.
NOTICE
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cushion-ing ability of the tires. In addition, driving
on rough roads may cause damage to the tires themselves, as well as the vehi-cle’s wheels and body.
■Low profile tires (21-inch tires)
Low profile tires may cause greater dam- age than usual to the tire wheel when
sustaining impact from the road surface. Therefore, pay attention to the following:
●Be sure to use proper tire inflation pressure. If tires are under-inflated,
they may be damaged more severely.
●Avoid potholes, uneven pavement, curbs and other road hazards. Failure to do so may lead to severe tire and
wheel damage.
■If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
Tire rotation

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6-3. Do-it-yourself maintenance
Maintenance and care
Vehicles with front and rear tires of
the same size
Vehicles with front and rear tires of
differing sizes
To equalize tire wear and help extend tire
life, Lexus recommends that tire rotation is
carried out approximately every 10000
km (6000 miles).
Do not fail to initialize the tire pressure
warning system after tire rotation.
■When rotating the tires
Make sure that the engine switch is off. If the tires are rotated while
the engine switch is in IGNITION ON mode , the tire position information will not be updated.
If this accidentally occurs, either turn the engine switch to off and then to IGNITION ON mode ,
or initialize the tire pr essure warning system after checking that the tire pressure is prop-erly adjusted.
When run-flat tires are installed, the
vehicle can be driven for a maximum of
160 km (100 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.)
A run-flat tire has a mark on
the side wall.
Make sure to replace the flat tire before the
vehicle has been driven for near 160 km
(100 miles). Also, do not use a repaired
tire.
■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 demon- strate the performanc e of run-flat tires.
Your vehicle is equipped with a tire
pressure warning system that uses tire
pressure warning valves and transmit-
ters 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.374)
 The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
Run-flat tires
Tire pressure warning system