coolant level lexus LC500 2018 Owner's Manual

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2-1. Instrument cluster
Vehicle status information and indicators
Warning lights inform the driver of mal-
functions in the indicated vehicle sys-
tems.
*1: These lights turn on when the engine
switch <power switch> is turned to
IGNITION ON mode <ON mode> to
indicate that a system check is being
performed. They will turn off after the
engine <hybrid system> is started, or
after a few seconds. There may be a
malfunction in a syst em if a light does
not come on, or turn off. Have the vehi-
cle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer.
*2: This light illuminates on the multi-infor-
mation display.
*3: The light flashes to indicate a malfunc-
tion.
*4: This light illuminates on the center
Warning lights
(red)
Brake system warning light*1
( P.368)
Charging system warning
light*2 ( P.368)
Low engine oil pressure
warning light*2 ( P.368)
Malfunction indicator lamp*1
( P.369)
SRS warning light*1
( P.369)
ABS warning light*1
( P.369)
(red)
Electric power steering sys-
tem warning light*1 ( P.370)
(yellow)
Electric power steering sys-
tem warning light*1 ( P.370)
PCS warning light*1, 3
( P.370)
(orange)
LKA indicator*2 (P.371)
Slip indicator*1 ( P.371)
Brake Override System
warning light*2
( P.372)/Drive-Start Con-
trol warning light*2 ( P.372)
Brake hold operated indica-
tor*1, 3 ( P.372)
Parking brake indicator*3
(P.372)
Brake pad wear warning
light*2 ( P.373)
(yellow)
Brake system warning light*1
(P.373)
Low fuel level warning light
( P.373)
Driver’s and front passen-
ger’s seat belt reminder light
( P.373)
Rear passengers’ seat belt
reminder lights*4 ( P.374)
Master warning light*1
( P.374)
Tire pressure warning light*1, 3
( P.374)
High coolant temperature
warning light*2 ( P.375)

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2-1. Instrument cluster
Vehicle status information and indicators
■Liquid crystal display
Small spots or light spots may appear on the
display. This phenomen on is characteristic of liquid crystal displays, and there is no problem continuing to use the display.
■Customization
The meter display can be customized on the multi-information display. ( P.423)
The odometer and trip meter displays
can be switched. When the trip meter
is displayed, pressing and holding the
button will reset the trip meter.
The brightness of the instrument panel
lights can be adjusted.
1 Darker
2 Brighter
■Instrument panel brightness adjustment
The instrument panel brightness levels when the tail lights are on and off can be adjusted individually. However, when the
surroundings are bright (daytime, etc.), turning on the tail lights will not change the instrument panel brightness.
The display can be switched between
the center and side positions.
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator of the tachom-eter enter the red zone, as it rep-
resents the engine speed range which exceeds the maximum safe engine speed.
●In the following situations, the engine
may be overheating. In this case, immediately stop the vehicle in a safe place, and check the engine after it has
cooled completely. ( P.400, 403)
• The engine coolant temperature gauge is in the red zone (H).
• LC500: The engine oil temperature gauge is in the red zone (H).
Changing between the odome-
ter and trip meter
Changing the instrument panel
light brightness
Changing the display

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4-6. Driving tips
Driving
Use fluids that are appropriate to
the prevailing outside temperatures.
•Engine oil
•Engine coolant
• Power control unit coolant (LC500h)
•Washer fluid
 Have a service technician inspect
the condition of the 12-volt battery.
 Have the vehicle fitted with four
snow tires.
Ensure that all tires are the specified size
and the same brand.
 Tire chains can only be installed on
the rear tires. However, tire chains
cannot be installed on 275/35RF21
or 275/40RF20 rear tires.
Before installing tire ch ains, change all four
tires and wheels to those of the specified
size for use with tire chains (front tires:
245/45RF20, rear tires: 245/45RF20,
wheels: 20 x 8 1/2 J 25 inset). Use the
specified type of tire chains and install
them on the rear tires only.
For details, contact any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer.
Winter driving tips
Carry out the necessary prepara-
tions and inspections before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or seri- ous injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the
speed limit or the speed limit specified for the snow tires being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used, or 50 km/h (30 mph), which-
ever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
●Do not use LKA (Lane-Keeping Assist) system. (if equipped)

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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 <power switch> is off.
With the engine switch <power switch> in IGNITION ON mode <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
LC500
Fuse box ( P.350)
Engine oil level dipstick ( P.319)
Engine coolant reservoir ( P.322)
Engine oil filler cap ( P.320)
Washer fluid tank ( P.324)
Electric cooling fan
Condenser ( P.323)
Radiator ( P.323)
For right-hand drive vehicles:
The fuse box is located on the opposite side of the engine compartment.
Engine compartment
Components
A
B
C
D
E
F
G
H

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6-3. Do-it-yourself maintenance
Maintenance and care
LC500h
Engine oil level dipstick ( P.319)
Power control unit coolant reservoir ( P.323)
Engine oil filler cap ( P.320)
Fuse boxes ( P.350)
Washer fluid tank ( P.324)
Engine coolant reservoir ( P.322)
Electric cooling fan
Condenser ( P.323)
Radiator ( P.323)
For right-hand drive vehicles:
One of the fuse boxes is located on the opposite side of the engine compartment.
■12-volt battery
 P.325
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.
A
B
C
D
E
F
G
H
I
Checking and adding the engine
oil

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6-3. Do-it-yourself maintenance
The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the engine <hybrid sys-
tem> is cold.
■Engine coolant reservoir
LC500
Reservoir cap
“F” line
“L” line
If the level is on or below the “L” line, add
coolant up to the “F” line. ( P.400)
LC500h
Reservoir cap
“F” line
“L” line
If the level is on or below the “L” line, add
coolant up to the “F” line. ( P.403)
WARNING
●Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose of used oil and filters in house-
hold trash, in sewers or onto the ground. Call any authorized Lexus retailer or
Lexus authorized repairer, or any reli- able 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
■To prevent serious engine damage
Check the oil level on a 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 prop-erly tightened.
Checking the coolant
A
B
C
A
B
C

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6-3. Do-it-yourself maintenance
Maintenance and care
■Power control unit coolant reser-
voir (LC500h)
Reservoir cap
“F”/“FULL” line
“L”/“LOW” line
If the level is on or below the “L”/“LOW”
line, add coolant up to the “F”/“FULL” line.
( P.403)
■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 mix-
ture 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 autho-
rized repairer, or any reliable repairer.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine/power control unit coolant reservoir caps, drain cock and water pump.
If you cannot find a leak, have any autho- rized Lexus retailer or Lexus authorized repairer, or any reliable repairer, test the
cap and check for leaks in the cooling sys- tem.
Check the radiator and condenser and
clear away any foreign objects.
If either of the above parts is extremely
dirty or you are not sure of their condi-
tion, have your vehicle inspected by
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.
A
B
C
WARNING
■When the engine <hybrid system> is hot
LC500: Do not remove the engine cool- ant reservoir cap or the coolant inlet cap. ( P.402)
The cooling system may be under pres- sure and may spray hot coolant if the cap is removed, causing serious injuries, such
as burns.
LC500h: Do not remove the
engine/power control unit coolant reser- voir caps or the coolant inlet cap. ( P.406)
The cooling system may be under pres- sure 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 pre- vent it from damaging parts or paint.
Checking the radiator and con-
denser