ECU lexus LC500 2018 Owner's Guide

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1-2. Child safety
For safety and security
Key of letters inserted in the above table:
X: Not suitable seat position for ISOFIX child restraint systems in this mass group
and/or size class.
IUF: Suitable for ISOFIX forward-facing ch ild restraint systems of “universal” cate-
gory approved for use in this mass group.
 When installing a child restraint in
the rear seats, adjust the front seat
so that it does not interfere with the
child or child restraint system.
■Installation with ISOFIX rigid
anchor (ISOFIX child restraint sys-
tem)
Install the child restraint system in
accordance to the operation manual
FLeft lateral-facing
(carrycot) infant seat
GRight lateral-facing
(carrycot) infant seat
Size classDescription
Mass groupsSize class
Seating position
Front seatRear seatPassenger seat
CarrycotFXX
GXX
0
Up to 10 kg
(22 lb.)
EXX
0+
Up to 13 kg
(28 lb.)
EXX
DXX
CXX
I
9 to 18 kg
(20 to 39 lb.)
DXX
CXX
BXX
B1XIUF
AXX

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1-2. Child safety
enclosed with the child restraint sys-
tem.
1 Check the positions of the exclu-
sive fixing bars, and install the child
restraint system to the seat.
The bars are installed in the clearance
between the seat cushion and seatback.
2 After installing the child restraint
system, rock it back and forth to
ensure that it is installed securely.
( P.57)
■Anchor brackets (for top strap)
Anchor brackets are provided for each
rear seat.
Use anchor brackets when fixing the
top strap.
Top strap
Anchor brackets
■Fixing the top strap to the anchor
bracket
Install the child restraint system in
accordance to the operation manual
enclosed with the child restraint sys-
tem.
Open the anchor bracket cover, latch
the hook onto the anchor bracket and
tighten the top strap.
Make sure the top strap is securely latched.
WARNING
■When installing a child restraint sys- tem
Observe the following precautions. Failure to do so may result in death or
serious injury.
●After securing a child restraint system, never adjust the seat.
●When using the lower anchors, be sure that there are no foreign objects
around the anchors and that the seat belt is not caught behind the child restraint system.
●Follow all installation instructions pro-
vided by the child restraint system manufacturer.
Using an anchor bracket (for top
strap)
A
B

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1-2. Child safety
For safety and security
(P.57)
Top strap
Hook
WARNING
■When installing a child restraint sys- tem
Observe the following precautions. Failure to do so may result in death or serious injury.
●Firmly attach the top strap and make
sure that the belt is not twisted.
●Do not attach the top strap to anything other than the anchor bracket.
●After securing a child restraint system, never adjust the seat.
●Follow all installation instructions pro-
vided by the child restraint system manufacturer.
NOTICE
■Anchor brackets (for top strap)
When not in use, make certain to close the lid. If it remains open, the lid may be damaged.
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
For safety and security
The illustration is an example for explanation 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.373) 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 12.1L [3.2 gal., 2.7 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.)
Hybrid system precautions (LC500h)
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 the warning labels attached to the vehi-
cle.
System components
A
B
C
D
E
F
G

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1-3. Hybrid system
For safety and security
WARNING
●Do not touch the battery if liquid is leaking from or adhering to it.If electrolyte (carbonic-based organic
electrolyte) from the hybrid battery (traction battery) comes into contact with the eyes or skin, it could cause
blindness or skin wounds. In the unlikely event that it comes into con-tact with the eyes or skin, wash it off
immediately with a large amount of water, and seek immediate medical attention.
●If electrolyte is leaking from the hybrid
battery (traction battery), do not approach the vehicle.Even in the unlikely event that the
hybrid battery (traction battery) is damaged, the internal construction of the battery will prevent a large amount
of electrolyte from leaking out. How- ever, any electrolyte that does leak out will give off a vapor. This vapor is an
irritant to skin and eyes and could cause acute poisoning if inhaled.
●Do not bring burning or high-tem-perature items close to the electrolyte.
The electrolyte may ignite and cause a fire.
●If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using even a small amount of water may be danger-
ous.
●If your vehicle needs to be towed, do so with rear 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.362)
●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 lithium-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 any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer. Do not dispose of the battery yourself.
Unless the battery is properly col- lected, the following may occur, result-ing 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 high 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 any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer. If the
hybrid battery is not disposed of prop- erly, it may cause electric shock that can result in death or serious injury.

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1-3. Hybrid system
For safety and security
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-
tact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

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1-4. Theft deterrent system
1-4.Theft deterrent system
The indicator light flashes after the
engine switch has been
turned off to indicate that the system is
operating.
The indicator light stops flashing after
the engine switch has
been turned to ACCESSORY or
IGNITION ON mode to
indicate that the system has been can-
celed.
■System maintenance
The vehicle has a maintenance-free type
engine 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

The vehicle’s keys have built-in tran-
sponder chips that prevent the
engine 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

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1-4. Theft deterrent system
For safety and security