engine lexus LC500 2018 User Guide

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1-1. For safe use
For safety and security
Exhaust gas precautions
Harmful substance to the human
body is included in exhaust gases if
inhaled.
WARNING
Exhaust gases include harmful carbon monoxide (CO), which is colorless and odorless. Observe the following precau-
tions. Failure to do so may cause exhaust gases enter the vehicle and may lead to an
accident caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehi-cle even when the trunk lid is closed,
open the windows and have the vehi- cle inspected at any authorized Lexus retailer or Lexus authorized repairer,
or any reliable repairer as soon as pos- sible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop the engine <hybrid sys-
tem>.
●Do not leave the vehicle with the engine running <hybrid system operat-ing> for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and ensure that exhaust fumes do not enter
the vehicle interior.
●Do not leave the engine running <hybrid system operating> in an area
with snow build-up, or where it is snowing. If snowbanks build up around the vehicle while the engine is running
<hybrid system is operating>, exhaust gases may collect and enter the vehi-cle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack
caused by corrosion, damage to a joint or abnormal exhaust noise, be sure to have the vehicle inspected and repaired
by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

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1-2. Child safety
1-2.Child safety
“PASSENGER AIR BAG” indica-
tor
“PASSENGER AIR BAG” and “ON” indi-
cator light turns on when the airbag system
is on, and about after 60 seconds they go
off. (only when the engine switch <power
switch> is in IGNITION ON mode <ON
mode>).
Airbag manual on-off switch
■“PASSENGER AIR BAG” indicator information
If any of the following problems occur, it is possible that there is a malfunction in the system. Have the vehicle inspected by any
authorized Lexus retailer or Lexus autho- rized repairer, or any reliable repairer.
●The “OFF” indicator does not illuminate when the airbag manual on-off switch is set to “OFF”.
●The indicator light does not change when the airbag manual on-off switch is
switched to “ON” or “OFF”.
Insert the mechanical key into the cyl-
inder and rotate to the “OFF” position.
The “OFF” indicator light turns on (only
when the engine switch <power switch> is
in IGNITION ON mode <ON mode>).
Airbag manual on-off system
This system deactivates the front
passenger airbag and front passen-
ger knee airbag.
Only deactivate the airbags when
using a child restra int system on the
front passenger seat.
System components
A
B
Deactivating the airbags for the
front passenger

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1-3. Hybrid system
1-3.Hybrid system
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. When the accelerator
pedal is only lightly depressed, such as
when traveling on a level surface or
down a gentle slope, the engine is
stopped* and the electric motor (trac-
tion motor) is used.
When the shift position is in N, the
hybrid battery (traction battery) is not
Hybrid system features (LC500h)
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.
In addition to the conventional system, exclusive control is performed for four
driving conditions (starting off, acce lerating, low-speed driving and high-
speed cruising) to optimize the drive force and fuel efficiency, allowing for a
more powerful drive and a higher fuel efficiency.
System components
A
B

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1-3. Hybrid system
For safety and security
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
(traction battery) as necessary.
■When accelerating sharply
When the accelerator pedal is
depressed heavily, the power of the
hybrid battery (traction battery) is
added to that of the gasoline engine via
the electric motor (traction motor).
■When braking (regenerative brak-
ing)
The wheels operate the electric motor
(traction motor) as a power generator,
and the hybrid battery (traction bat-
tery) is charged.
■Regenerative braking
In the following situations, kinetic energy is
converted to electric energy and decelera- tion force can be obtained in conjunction with the recharging of the hybrid battery
(traction battery).
●The accelerator pedal is released while
driving with the shift position in D or M.
●The brake pedal is depressed while driv-
ing with the shift position in D or M.
■EV indicator
The EV indicator comes on when the vehi-
cle is driven using only the electric motor (traction motor) or the gasoline engine is stopped.
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops auto- matically. However, it may not stop auto-
matically in the following conditions*:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid bat-tery (traction battery) is high or low
●When the heater is switched on
●When the shift position is in M*: Depending on the circumstances, the
gasoline engine may also not stop auto-
matically in other situations.
■Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the battery does
not need to be charged from an outside source. However, if the vehicle is left parked for a long time the hybrid battery (traction
battery) will slowly discharge. For this rea- son, be sure to drive the vehicle at least once every few months for at least 30 min-
utes or 16 km (10 miles). If the hybrid bat- tery (traction battery) becomes fully discharged and you are unable to start the
hybrid system, contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■Charging the 12-volt battery
 P.398
■After the 12-volt battery has discharged or when the terminal has been removed
and installed during exchange, etc.
The gasoline engine may not stop even if

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1-3. Hybrid system
the vehicle is being driven by the hybrid bat- tery (traction battery). If this continues for a few days, contact any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move with
the “READY” indicator is illuminated. For safety, apply the parking brake and make sure to shift the shift position to P when
parked.
The following sounds or vibrations may
occur when the hybrid system is operating and are not a malfunction:
●Motor sounds may be heard from the engine compartment.
●Sounds may be heard from the hybrid battery (traction battery) behind the rear seats when the hybrid system starts or
stops.
●Relay operating sounds such as a snap or
soft clank will be emitted from the hybrid battery (traction battery), behind the rear seats, when the hybrid system is started
or stopped.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transmis-sion when the gasoline engine starts or stops, when driving at low speeds, or
during idling.
●Engine sounds may be heard when
accelerating sharply.
●Sounds may be heard due to regenera-
tive braking when the brake pedal is depressed or as the accelerator pedal is released.
●Vibration may be felt when the gasoline engine starts or stops.
●Cooling fan sounds may be heard from the air intake vents under the rear seats.
■Maintenance, repair, recycling, and dis-
posal
Contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable
repairer regarding maintenance, repair, recycling and disposal. Do not dispose of the vehicle yourself.
■Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features: P.423)

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1-4. Theft deterrent system
1-4.Theft deterrent system
The indicator light flashes after the
engine switch <power switch> has been
turned off to indicate that the system is
operating.
The indicator light stops flashing after
the engine switch <power switch> has
been turned to ACCESSORY or
IGNITION ON mode <ON mode> to
indicate that the system has been can-
celed.
■System maintenance
The vehicle has a maintenance-free type
engine immobilizer system <immobilizer system>.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touch-ing a key registered to the security sys-
tem (key with a built-in transponder chip) of another vehicle
Engine immobilizer system
<Immobilizer system>
The vehicle’s keys have built-in tran-
sponder chips that prevent the
engine <hybrid system> from start-
ing if a key has not been previously
registered in the vehicle’s on-board
computer.
Never leave the keys inside the
vehicle when you leave the vehicle.
This system is designed to help pre-
vent vehicle theft but does not guar-
antee absolute security against all
vehicle thefts.
Operating the system

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1-4. Theft deterrent system
For safety and security
■Certifications for the engine immobilizer system <immobilizer system>

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1-4. Theft deterrent system
For safety and security
■Setting
Turn the engine switch <power switch>
off, have all the passengers exit the
vehicle and ensure that both side doors
are closed.
Press twice within 5 seconds.
■Canceling
Using the entry function: Push the
edge of the door handle to unlock the
doors.
Using the wireless remote control:
Press .
NOTICE
■To ensure the system operates cor- rectly
Do not modify or remove the system. If modified or removed, the proper opera-tion of the system cannot be guaranteed.
Double locking system
Unauthorized access to the vehicle
is prevented by disabling the door
unlocking function from both the
interior and exterior of the vehicle.
Vehicles employing this system
have labels on the side windows.
Setting/canceling the double
locking system

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1-4. Theft deterrent system
For safety and security
■Setting
Close the doors, trunk and hood, and
lock both side doors using the entry
function or wireless remote control.
The system will be set automatically
after 30 seconds.
The indicator light changes from being on
to flashing when the system is set.
■Canceling or stopping
Do one of the following to deactivate
or stop the alarm:
 Unlock the doors or open the trunk
using the entry function or wireless
remote control.
 Start the engine <hybrid system>.
(The alarm will be deactivated or
stopped after a few seconds.)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Triggering of the alarm
The alarm may be triggered in the following situations:(Stopping the alarm deactivates the alarm
system.)
●The doors are unlocked using the
mechanical key.
●A person inside the vehicle opens a door, the trunk or hood, or unlocks the vehicle using a door lock switch.
●The 12-volt battery is recharged or replaced when the vehicle is locked.
( P.398)
■Alarm-operated door lock
In the following cases, depending on the sit-
uation, the door may automatically lock to prevent improper entry into the vehicle:
●When a person remain ing in the vehicle unlocks the door and the alarm is acti-vated.
●While the alarm is activated, a person remaining in the vehicle unlocks the door.
●When recharging or replacing the 12-volt battery

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1-4. Theft deterrent system
■The intrusion sensor and tilt sensor
detection
 The intrusion sensor detects intrud-
ers or movement in the vehicle.
 The tilt sensor detects changes in
vehicle inclination, such as when the
vehicle is towed away.
This system is designed to deter and
prevent vehicle theft but does not
guarantee absolute security against all
intrusions.
■Setting the intrusion sensor and tilt
sensor
The intrusion sensor and tilt sensor will
be set automatically when the alarm is
set. ( P.77)
■Canceling the intrusion sensor and
tilt sensor
If you are leaving pets or other moving
things inside the vehicle, make sure to
disable the intrusion sensor and tilt
sensor before setting the alarm, as they
will respond to movement inside the
vehicle.
1 Turn the engine switch <power
switch> off.
2 Press the intrusion sensor and tilt
sensor cancel switch.
Press the switch again to re-enable the intrusion sensor and tilt sensor.
Each time the intrusion sensor and tilt sen- sor are canceled/set, a message will be shown on the multi-information display in
the instrument cluster.
■Canceling and automatic re-enabling of
the intrusion sensor and tilt sensor
●The alarm will still be set even when the
intrusion sensor and tilt sensor are can- celed.
●After the intrusion sensor and tilt sensor are canceled, pressing the engine switch <power switch> or unlocking the doors
using the entry function or wireless remote control will re-enable the intru-sion sensor and tilt sensor.
●The intrusion sensor and tilt sensor will automatically be re-enabled when the
alarm system is deactivated.
■Intrusion sensor detection consider- ations
The sensor may trigger the alarm in the fol- lowing situations:
●People or pets are in the vehicle.
●A window is open.
In this case, the sensor may detect the fol-
NOTICE
■To ensure the system operates cor- rectly
Do not modify or remove the system. If modified or removed, the proper opera-tion of the system cannot be guaranteed.
Intrusion sensor and tilt sensor