2019 LEXUS LS500H fuel

631-4. Hybrid system
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1
For safety and security
1-4.Hybrid system
■System components
The illustration is an example for explanation and may differ from the actual item.
Gasoline engine
Electric motor (traction motor)
■When stopped/during start off
The gasoline engine stops
* when the
vehicle is stopped. During start off, the
electric motor (traction motor) drives
the vehicle. At slow speeds or when
traveling down a gentle slope, the
engine is stopped
* and the electric
motor (traction motor) is used.
When the shift position is in N, the hybrid battery (traction battery) is not
being charged.
*: When the hybrid battery (traction bat-
tery) requires charging or the engine is
warming up, etc., the gasoline engine will
not automatically stop.
■During normal driving
The gasoline engine is predominantly
used. The electric motor (traction
motor) charges the hybrid battery
Hybrid system features
Your vehicle is a hybrid vehicle. It has characteristics different from conven-
tional vehicles. Be sure you are closely familiar with the characteristics of your
vehicle, and operate it with care.
The hybrid system combines the use of a gasoline engine and an electric motor
(traction motor) according to driving conditions, improving fuel efficiency and
reducing exhaust emissions.
System components
A
B

661-4. Hybrid system
LS500h_OM_(U)_1809The illustration is an example for explana-
tion and may differ from the actual item.
Warning label
Power control unit
Electric motor (traction motor)
Hybrid battery (traction battery)
Service plug
High voltage cables (orange)
Air conditioning compressor
■Running out of fuel
When the vehicle has run out of fuel and the
hybrid system cannot be started, refuel the
vehicle with at least enough gasoline to
make the low fuel level warning light
(  P.427) go off. If there is only a small
amount of fuel, the hybrid system may not be able to start. (The
standard amount of
fuel is about 3.4 gal. [13 L, 2.8 Imp. gal.],
when the vehicle is on a level surface. This
value may vary when the vehicle is on a
slope. Add extra fuel when the vehicle is
inclined.)
■Electromagnetic waves
●High voltage parts and cables on hybrid
vehicles incorporate electromagnetic
shielding, and therefore emit approxi-
mately the same amount of electromag-
netic waves as conventional gasoline
powered vehicles or home electronic
appliances.
●Your vehicle may cause sound interfer-
ence in some third party-produced radio
parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has a
limited service life. The lifespan of the
hybrid battery (traction battery) can
Hybrid system precautions
Take care when handling the hybrid system, as it is a high voltage system (about
650 V at maximum) as well as contains parts that become extremely hot when
the hybrid system is operating. Obey th e warning labels attached to the vehi-
cle.
System components
A
B
C
D
E
F
G

681-4. Hybrid system
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WARNING
●If your vehicle needs to be towed, do
so with four wheels raised. If the
wheels connected to the electric
motor (traction motor) are on the
ground when towing, the motor may
continue to generate electricity. This
may cause a fire. ( P.419)
●Carefully inspect the ground under the
vehicle. If you find that liquid has
leaked onto the ground, the fuel sys-
tem may have been damaged. Leave
the vehicle as soon as possible.
■Hybrid battery (traction battery)
●Your vehicle contains a sealed lith-
ium-ion battery.
●Never resell, hand over or modify the
hybrid battery. To prevent accidents,
hybrid batteries that have been
removed from a disposed vehicle are
collected through your Lexus dealer.
Do not dispose of the battery yourself.
Unless the battery is properly collected,
the following may occur, resulting in
death or serious injury:
• The hybrid battery may be illegally dis- posed of or dumped, and it is hazard-
ous to the environment or someone
may touch a high voltage part, result-
ing in an electric shock.
• The hybrid battery is intended to be used exclusively with your hybrid vehi-
cle. If the hybrid battery is used outside
of your vehicle or modified in any way,
accidents such as electric shock, heat
generation, smoke generation, an
explosion and electrolyte leakage may
occur.
When reselling or handing over your
vehicle, the possibility of an accident is
extremely high because the person
receiving the vehicle may not be aware
of these dangers.
●If your vehicle is disposed of without
the hybrid battery having been
removed, there is a danger of serious
electric shock if hi gh voltage parts,
cables and their connectors are
touched. In the event that your vehicle
must be disposed of, the hybrid battery
must be disposed of by your Lexus
dealer or a qualified service shop. If
the hybrid battery is not disposed of
properly, it may cause electric shock
that can result in death or serious
injury.
NOTICE
■Hybrid battery (tra ction battery) air
intake vents
Do not carry large amounts of water
such as water cooler bottles in the vehi-
cle. If water spills onto the hybrid battery
(traction battery), the battery may be
damaged. Have the vehicle inspected by
your Lexus dealer.

691-4. Hybrid system
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1
For safety and security
There are air intake vents on each side
of the rear seatback with the purpose
of cooling the hybrid battery (traction
battery). If the vents become blocked,
hybrid battery output may be reduced. When a certain level of impact is
detected by the impact sensor, the
emergency shut off system blocks the
high voltage current and stops the fuel
pump to minimize the risk of electrocu-
tion and fuel leakage. If the emergency
shut off system activates, your vehicle
will not restart. To restart the hybrid
system, contact your Lexus dealer.
A message is automatically displayed
when a malfunction occurs in the
hybrid system or an improper opera-
tion is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.
■If a warning light comes on, a warning
message is displayed, or the 12-volt bat-
tery is disconnected
The hybrid system may not start. In this
case, try to start the system again. If the
“READY” indicator does not come on, con-
Hybrid battery (traction bat-
tery) air intake vents
NOTICE
■Hybrid battery (traction battery) air
intake vents
●Make sure not to block the air intake
vent with anything, such as a seat
cover, plastic cover, or luggage. If the
vents become blocked, the hybrid bat-
tery (traction battery) input and output
may be restricted, leading to a reduc-
tion in hybrid battery (traction battery)
output and a malfunction.
●When dust etc. has accumulated in the
air intake vent, periodically clean it
with a vacuum cleaner to prevent the
vent from clogging.
●A filter is installed to the air intake vent.
When the filter remains noticeably
dirty even after cleaning the air intake
vent, filter cleaning or replacement is
recommended. When cleaning or
replacing the filter, contact your Lexus
dealer.
Refer to P.372 for details on how to
clean the filters.
●Do not get water or foreign materials
in the air intake vent s as this may cause
a short circuit and damage the hybrid
battery (traction battery).
Emergency shut off system
Hybrid warning message

772-1. Instrument cluster
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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.424)
(red)
(Canada)
Brake system warning light*1
(  P.424)
(yellow)
Brake system warning light*1
(  P.424)
High coolant temperature
warning light
*2 (  P.424)
Hybrid system overheat warn-
ing light
*2 (  P.425 )
Charging system warning
light
*2 (  P.425)
Low traction battery warning
light
*2 (  P.425 )
Low engine oil pressure warn-
ing light
*2 (  P.425)
(U.S.A.)
Malfunction indicator lamp*1
(  P.426)
(Canada)
Malfunction indicator lamp*1
(  P.426)
SRS warning light
*1 (  P.426)
Pop Up Hood warning light
*1
(  P.426)
(U.S.A.)
ABS warning light*1 ( P.426)
(Canada)
ABS warning light*1 ( P.426)
Brake Override System warn-
ing light/Drive-Start Control
warning light
*2 ( P.427)
(red)
Electric power steering system
warning light
*1 ( P.427)
(yellow)
Electric power steering system
warning light
*1 ( P.427)
Low fuel level warning light
(  P.427)
Driver’s and front passenger’s
seat belt reminder light
(  P.427)
Rear passengers’ seat belt
reminder lights
*3 (  P.428)
Tire pressure warning light
*1
(  P.428)
(orange)
LTA indicator ( P.429)
(flashes)
Intuitive parking assist OFF indi-
cator
*1 ( P.429)
(flashes)
RCTA OFF indicator*1
(  P.429)
(flashes)
RCD OFF indicator (if
equipped) ( P.429)
(flashes)
PKSB OFF indicator*1
(  P.430)
(flashes or
illuminates)PCS warning light*1 (  P.430)
Slip indicator
*1 (  P.430)
(flashes)
(U.S.A.)
Parking brake indicator
(  P.431)

812-1. Instrument cluster
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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 gauge
Displays the engine coolant temperature
Odometer and trip meter display (P.83)
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to 122°F (50°C)
Hybrid System Indicator
Displays hybrid system outp ut or regeneration level (P.82)
This display changes to a tachometer depending on the driving mode, and can be set to
show the tachometer in any driving mode on the settings display. ( P.94, 297)
Speedometer
Clock
Time displayed is linked to the analog clock on the center panel. (P.355)
Shift position indicator ( P.178)
Shift range/gear position ( P.176)
Fuel gauge
Displays the quantity of fuel remaining in the tank
Multi-information display
Presents the driver with a variety of vehicle data ( P.90)
Gauges and meters (except F SPORT models)
Meter display
A
B
C
D
E
F
G
H
I
J

822-1. Instrument cluster
LS500h_OM_(U)_1809Displays warning messages if a malfunction occurs (
P.434)
■Hybrid System Indicator
Charge area
Shows regeneration* status.
Regenerated energy will be used to charge
the hybrid battery (traction battery).
Hybrid Eco area
Shows that gasoline engine power is not
being used very often.
The gasoline engine will automatically stop
and restart under various conditions.
Eco area
Shows that the vehicle is being driven in an
Eco-friendly manner.
By keeping the bar display within Eco area,
more Eco-friendly driv ing can be achieved.
Power area
Shows that an Eco-friendly driving range is
being exceeded (durin g full power driving
etc.)
*: When used in this manual, regeneration refers to the conversion of energy cre-
ated by the movement of the vehicle into
electrical energy.
■Engine speed
On hybrid vehicles, engine speed is pre-
cisely controlled in order to help improve
fuel efficiency and reduce exhaust emis-
sions etc.
There are times when the engine speed that
is displayed may differ even when vehicle operation and driving
conditions are the
same.
■Hybrid System Indicator is displayed
when
The Hybrid System Indicator is displayed in
the following situations:
●The shift position is in D or M.
●The driving mode is other than sport
mode.
However, the Hybrid System Indicator will
not be displayed when the analog and digi-
tal speedometers are both enabled on
of the multi-information display. ( P.94)
■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.91
■Customization
The gauges and meters can be customized
on of the multi-information display.
(  P.94)
A
B
C
D
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.

862-1. Instrument cluster
LS500h_OM_(U)_1809
Fuel gauge
Displays the quantity of fuel remaining in the tank
Shift position indicator (P.178)
Multi-information display
Presents the driver with a variety of vehicle data ( P.90)
Displays warning messages if a malfunction occurs ( P.434)
Main meter moved to the right
The units of measure may differ depending on the intended destination of the vehicle.
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to 122°F (50°C)
Clock
Time displayed is linked to the analog clock on the center panel. (P.355)
Hybrid System Indicator
Displays hybrid system outp ut or regeneration level (P.82)
This display changes to a tachometer depending on the driving mode, and can be set to
show the tachometer in any driving mode on the settings display. ( P.94, 297)
• Rev indicator ( 
P.87)
•Rev peak ( 
P.87)
Shift position/shift range/gear position ( P.176)
Speedometer
Shift position indicator ( P.178)
Odometer and trip meter display ( P.88)
Fuel gauge
Displays the quantity of fuel remaining in the tank
H
I
J
A
B
C
D
E
F
G
H