engine coolant LEXUS LS500 2018 Owners Manual

652-1. Instrument cluster
LS500_OM_OM50F54U_(U) 2
Vehicle status information and indicators Warning lights inform the driver of mal-
functions in the indicated vehicle’s sys-
tems.
Warning lights (U.S.A.)
Brake system warning light *1

( → P.418)(red)
(Canada)
Brake system warning light *1

( → P.418)(yellow)
Brake system warning light *1

( → P.418)
High coolant temperature
warning light *2
( → P.418)
Charging system warning
light *2
( → P.419)
Low engine oil pressure warn-
ing light *2
( → P.419)
(U.S.A.) Malfunction indicator lamp *1

( → P.419)
(Canada) Malfunction indicator lamp *1

( → P.419)
SRS warning light *1
( → P.419)
Pop Up Hood warning light *1

( → P.420)
(U.S.A.) ABS warning light *1
( → P.420)
(Canada) ABS warning light *1
( → P.420)
Brake Override System warn-
ing light/Drive-Start Control
warning light *2
( → P.420) (red)
Electric power steering system
warning light *1
( → P.421)(yellow)
Electric power steering system
warning light *1
( → P.421)
Low fuel level warning light
( → P.421)
Driver’s and front passenger’s
seat belt reminder light
( → P.421)
Rear passengers’ seat belt
reminder lights *3
( → P.422)
Tire pressure warning light *1

( → P.422)(orange)
LTA indicator (if equipped)
( → P.422)
LKA indicator (if equipped)
( → P.422)(flashes)
Intuitive parking assist OFF indi-
cator *1
(if equipped) ( → P.423)
(flashes)
RCTA OFF indicator *1
(if
equipped) ( → P.423)
(flashes) RCD OFF indicator (if
equipped) ( → P.423)
(flashes)
PKSB OFF indicator *1
(if
equipped) ( → P.424)
(flashes or
illuminates)
PCS warning light *1
( → P.424)
Slip indicator *1
( → P.424)
(flashes)
(U.S.A.) Parking brake indicator
( → P.425)

692-1. Instrument cluster
LS500_OM_OM50F54U_(U) 2
Vehicle status information and indicators ■
Locations of gauges and meters
The units of measure may differ depending on the intended destination of the vehicle.
Engine coolant temperature gaugeDisplays the engine coolant temperature
Odometer and trip meter display ( → P.70)
Outside temperatureDisplays the outside temperature within the range of -40°F (-40°C) to 122°F (50°C)
TachometerDisplays the engine speed in revolutions per minute
When sport mode is se lected for the driving mode, the periphery of the tachometer will
change color and the scale of the tachometer will be emphasized.
Speedometer
ClockTime displayed is linked to the analog clock on the center panel. ( → P.344)
Shift position indicator ( → P.165)
Shift range/gear position ( → P.163)
Fuel gaugeDisplays the quantity of fuel remaining in the tank
Multi-information displayPresents the driver with a variety of vehicle data ( → P.76)Gauges and meters (except F SPORT models)
Meter display
A
B
C
D
E
F
G
H
I
J

70 2-1. Instrument cluster
LS500_OM_OM50F54U_(U) Displays warning messages if a malfunction occurs ( → P.428)■
Outside temperature display●
In the following situations, the correct
outside temperature may not be dis-
played, or the display may take longer
than normal to change:
• When stopped, or driving at low speeds
(less than 12 mph [20 km/h])
• When the outside temperature has
changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)●
When “--” or “E” is displayed, the system
may be malfunctioning. Take your vehicle
to your Lexus dealer.■
Liquid crystal display
→ P.77■
Customization
The gauges and meters can be customized
on of the multi-information display.
( → P.81) ■
Display items
 Odometer Displays the total distance the vehicle has
been driven.
 Trip meter A/trip meter B Displays the distance the vehicle has been
driven since the meter was last reset. Trip
meters A and B can be used to record and
display different distances independently.
 Distance until next engine oil
change Displays the distance the vehicle can be
driven until an oil change is necessary. ■
Changing the display
Each time the “ODO TRIP” switch is
pressed, the displayed item will be
changed. When the trip meter is dis-
played, pressing and holding the switch
will reset the trip meter.WARNING■
The information display at low tem-
peratures
Allow the interior of the vehicle to warm
up before using the liquid crystal infor-
mation display. At extremely low tem-
peratures, the in formation display
monitor may respond slowly, and display
changes may be delayed.
For example, there is a lag between the
driver’s shifting and the new gear number
appearing on the display. This lag could
cause the driver to downshift again,
causing rapid and excessive engine brak-
ing and possibly an accident resulting in
death or injury.
NOTICE
■
To prevent damage to the engine and
its components
●
Do not let the indicator needle of the
tachometer enter the red zone, which
indicates the maximum engine speed. ●
The engine may be overheating if the
engine coolant temperature gauge is
in the red zone (H). In this case, imme-
diately stop the vehicle in a safe place,
and check the engine after it has
cooled completely. ( → P.443)
Odometer and trip meter dis-
play

72 2-1. Instrument cluster
LS500_OM_OM50F54U_(U) ■
Locations of gauges and meters
When the main meter is moved to the righ t, some of the meter displays and the
gauge layout will change. ( → P.76)
Main meter in center position
The units of measure may differ depending on the intended destination of the vehicle.
Odometer and trip meter display ( → P.75)
Engine coolant temperature gaugeDisplays the engine coolant temperature
Outside temperatureDisplays the outside temperature within the range of -40°F (-40°C) to 122°F (50°C)
TachometerDisplays the engine speed in revolutions per minute
When sport mode is se lected for the driving mode, the periphery of the tachometer will
change color and the scale of the tachometer will be emphasized.
• Rev indicator ( →
P.74 )
•Rev peak ( →
P.74 )
Shift position/shift range/gear position ( → P.163)
Speedometer
ClockTime displayed is linked to the analog clock on the center panel. ( → P.344)Gauges and meters (F SPORT models)
Meter display
A
B
C
D
E
F
G

74 2-1. Instrument cluster
LS500_OM_OM50F54U_(U) Engine coolant temperature gaugeDisplays the engine coolant temperature
Multi-information displayPresents the driver with a variety of vehicle data ( → P.76)
Displays warning messages if a malfunction occurs ( → P.428)■
Rev indicator
When the engine speed reaches a set
speed or the red zone, a ring-shaped
indicator ( ) will be displayed on the
tachometer. The indicators will be displayed in amber
when the engine speed reaches a set
speed, and in red when the engine speed
reaches the red zone.
The engine speed at which the rev indica-
tor will begin to be displayed can be set on
of the multi-information display.
( → P.81)
■
Rev peak
When the engine speed reaches or
exceeds 5000 rpm, an afterimage of
the tachometer will be displayed at the
highest engine speed for approxi-
mately 1 second. ■
Outside temperature display ●
In the following situations, the correct
outside temperature may not be dis-
played, or the display may take longer
than normal to change:
• When stopped, or driving at low speeds
(less than 12 mph [20 km/h])
• When the outside temperature has
changed suddenly (at the entrance/exit of
a garage, tunnel, etc.) ●
When “--” or “E” is displayed, the system
may be malfunctioning. Take your vehicle
to your Lexus dealer. ■
Liquid crystal display
→ P.77 ■
Customization
The gauges and meters can be customized
on of the multi-information display.
( → P.81)I
J
A
WARNING
■
The information display at low tem-
peratures
Allow the interior of the vehicle to warm
up before using the liquid crystal infor-
mation display. At extremely low tem-
peratures, the information display
monitor may respond slowly, and display
changes may be delayed.

752-1. Instrument cluster
LS500_OM_OM50F54U_(U) 2
Vehicle status information and indicators
■
Display items
 Odometer Displays the total distance the vehicle has
been driven.
 Trip meter A/trip meter B Displays the distance the vehicle has been
driven since the meter was last reset. Trip
meters A and B can be used to record and
display different distances independently.
 Distance until next engine oil
change Displays the distance the vehicle can be
driven until an oil change is necessary.
■
Changing the display
Each time the “ODO TRIP” switch is
pressed, the displayed item will be changed. When the trip meter is dis-
played, pressing and holding the switch
will reset the trip meter.
■
Pop-up display
The distance until the next engine oil
change will displayed when a warning
message indicating that oil mainte-
nance should be performed soon or is
required is displayed.
The brightness of the instrument panel
lights can be adjusted.
1 Darker
2 Brighter ■
Brightness of the meters (day mode and
night mode)
The brightness of the meters changes
between day mode and night mode.
●
Day mode: When the tail lights are off or WARNING
For example, there is a lag between the
driver’s shifting and the new gear number
appearing on the display. This lag could
cause the driver to downshift again,
causing rapid and excessive engine brak-
ing and possibly an accident resulting in
death or injury.
NOTICE■
To prevent damage to the engine and
its components●
Do not let the indicator needle of the
tachometer enter the red zone, which
indicates the maximum engine speed.●
The engine may be overheating if the
engine coolant temperature gauge is
in the red zone (H). In this case, imme-
diately stop the vehicle in a safe place,
and check the engine after it has
cooled completely. ( → P.443)
Odometer and trip meter dis-
play Changing the instrument panel
light brightness

1694-2. Driving procedures
LS500_OM_OM50F54U_(U) 4
Driving  When vehicle speed drops (down-
shift only).
 When it is necessary to protect the
engine or automatic transmission
when the engine coolant tempera-
ture is low, the automatic transmis-
sion fluid temperature is high or low,
or other reasons.
Also, the gear will not shift when the
vehicle speed is low, even if an upshift
operation is performed. ■
Downshifting restriction warning
buzzer
To help ensure safety and driving perfor-
mance, downshifting operation may some-
times be restricted. In some circumstances,
downshifting may not be possible even
when the paddle shift switch is operated. (A
buzzer will sound twice.)
1 Right turn
2 Lane change to the right (move the
lever partway and release it) The right hand signals will flash 3 times.
3 Lane change to the left (move the
lever partway and release it) The left hand signals will flash 3 times.
4 Left turn ■
Turn signals can be operated when
The engine switch is in IGNITION ON
mode.
■
If the indicator flashes faster than usual
Check that a light bulb in the front or rear
turn signal lights has not burned out.
■
If the turn signals stop flashing before a
lane change has been performed
Operate the lever again.Turn signal lever
Operating instructions

2994-6. Driving tips
LS500_OM_OM50F54U_(U) 4
Driving 4-6.Driving tips
 Use fluids that are appropriate to
the prevailing outside temperatures. •Engine oil
• Engine coolant
•Washer fluid
 Have a service technician inspect
the condition of the battery.
 Have the vehicle fitted with four
snow tires or purchase a set of tire
chains for the rear tires. *
Ensure that all tires are the specified size
and brand, and that chains match the size
of the tires. *
: Tire chains cannot be mounted on vehi-
cles with front and rear tires of differing
sizes.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 in excess of 75 mph (120
km/h), regardless of the type of snow
tires being used. ●
Use snow tires on all, not just some
wheels. ■
When installing tire chains
Before installing tire chains, make sure to
disable all functions of the vehicle height
control of the electronically modulated
air suspension. Otherwise, the vehicle
height may change while installing the
tire chains and part or your body may be
caught under the vehicle, possibly caus-
ing injury. ( → P.293)■
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 30 mph (50 km/h), which-
ever is lower. ●
Avoid driving on bumpy road surfaces
or over potholes. ●
Avoid sudden acceleration, abrupt
steering, sudden br aking 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 LTA (Lane Tracing Assist)
system. (if equipped)
●
Do not use LKA (Lane-Keeping
Assist) system. (if equipped)

3696-2. Maintenance
LS500_OM_OM50F54U_(U) 6
Maintenance and care 3 Press or to select “Scheduled
Maintenance” and then press .
4 Press or to select “Yes” and
then press .
A message will be displayed on the
multi-information disp lay when the reset
procedure has been completed.
You can perform some maintenance
procedures by yourself.
Please be aware that do-it-yourself
maintenance may affect warranty cov-
erage. The use of Lexus repair manuals is recom-
mended.
For details about warra nty coverage, refer
to the separate “Owner’s Guide”, “War-
ranty and Service Guide”, “Owner’s Man-
ual Supplement” or “Warranty Booklet”.Do-it-yourself maintenance General maintenance Listed below are the general main-
tenance items that should be per-
formed at the intervals specified in
the “Warranty and Service Guide”
or “Owner’s Manual Supplement”.
It is recommended that any prob-
lem you notice should be brought to
the attention of your Lexus dealer
or qualified service shop for advice. WARNING■
If the engine is running
Turn the engine off and ensure that there
is adequate ventilati on before perform-
ing maintenance checks.
Engine compartment Items Check points
Brake fluid Is the brake fluid at the
correct level?
( → P.383)
Engine/inter-
cooler coolant Is the engine/inter-
cooler coolant at the
correct level?
( → P.381)
Engine oil Is the engine oil at the
correct level?
( → P.379)
Exhaust system There should not be
any fumes or strange
sounds.

3736-3. Do-it-yourself maintenance
LS500_OM_OM50F54U_(U) 6
Maintenance and care 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 Items Parts and tools
Battery condition
( → P.384) •Grease
• Conventional
wrench (for terminal
clamp bolts)
Brake fluid level
( → P.383) • FMVSS No.116 DOT
3 or SAE J1703
brake fluid
FMVSS No.116 DOT
4 or SAE J1704
brake fluid
•Rag or paper towel
• Funnel (used only for
adding brake fluid) Engine/inter-
cooler coolant
level ( → P.381) •“Toyota Super Long
Life Coolant” or a
similar high quality
ethylene gly-
col-based non-sili-
cate, non-amine,
non-nitrite and
non-borate coolant
with long-life hybrid
organic acid tech-
nology
For the U.S.A.:
“Toyota Super Long
Life Coolant” is
pre-mixed with 50%
coolant and 50%
deionized water.
For Canada:
“Toyota Super Long
Life Coolant” is
pre-mixed with 55%
coolant and 45%
deionized water.
•Funnel (used only for
adding coolant)
Engine oil level
( → P.379) •“Toyota Genuine
Motor Oil” or equiv-
alent
• Rag or paper towel
•Funnel (used only for
adding engine oil)
Fuses ( → P.405) •Fuse with same
amperage rating as
original
Radiator, con-
denser, inter-
cooler radiator
and intercooler
sub radiator
( → P.382) ⎯Items Parts and tools