2018 Lexus LC500 charging

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6-3. Do-it-yourself maintenance
Maintenance and care
The 12-volt battery is located in the
trunk.
■Before recharging
When recharging, the 12-volt battery pro- duces hydrogen gas which is flammable and explosive. Therefore, observe the fol-
lowing precautions before recharging:
●If recharging with the 12-volt battery
installed on the vehicle, be sure to discon- nect the ground cable.
●Make sure the power switch on the char-ger is off when connecting and discon-necting the charger cables to the 12-volt
battery.
■After recharging/reconnecting the 12- volt battery
●Unlocking the doors using the smart entry & start system may not be possible immediately after reconnecting the 12-
volt battery. If this happens, use the wire- less remote control or the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCES-
SORY mode. The engine may not start with the engine switch turned off. However, the
engine will operate nor- mally from the second attempt.
●The engine switch mode
is recorded by the vehicle. If the 12-volt battery is reconnected, the vehicle will return the engine switch
mode to the status it was in before the 12- volt battery was disc onnected. Make sure to turn off the engine switch switch> before disconnect the 12-volt bat- tery. Take extra care when connecting the 12-volt battery if the engine switch
mode prior to discharge is unknown.
If the engine will not start even after multiple attempts at all methods above, contact any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
12-volt battery
Location
WARNING
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous
and corrosive sulfuric acid and may pro- duce hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following pre- cautions while working on or near the 12-volt battery:
●Do not cause sparks by touching the
12-volt battery terminals with tools.
●Do not smoke or light a match near the 12-volt battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when
working near the 12-volt battery.
●Keep children away from the 12-volt battery.
■Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt bat-
tery in a garage or closed room where there is insufficient ventilation.

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6-3. Do-it-yourself maintenance
Pull the strap upwards to lift up the lug-
gage mat.
Make sure that the 12-volt battery ter-
minals are not corroded and that there
are no loose connections, cracks, or
loose clamps.
Terminals
Hold-down clamp
The meanings of each caution symbol
on the top of the 12-volt battery are as
follows:
WARNING
■How to recharge the 12-volt battery
Recharge at a current of 5 A or less and
make sure that the recharging period does not exceed a total of 12 hours.
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyesFlush your eyes with clean water for at
least 15 minutes and get immediate medical attention. If possible, continue to apply water with a sponge or cloth
while traveling to the nearest medical facility.
●If electrolyte gets on your skinWash the affected area thoroughly. If
you feel pain or burning, get medical attention immediately.
●If electrolyte gets on your clothesIt can soak through clothing on to your
skin. Immediately take off the clothing and follow the procedure above if nec-essary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention immediately.
NOTICE
■When recharging the 12-volt battery
Never recharge the 12-volt battery while the engine is running . Also, be sure all accessories
are turned off.
Removing the 12-volt battery
cover
Exterior
Caution symbols
No smoking, no naked
flames, no sparks
Shield eyes
A
B

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7-2. Steps to take in an emergency
■Brake system warning light (warning buzzer)
■Charging system warning light*
*: This light illuminates on the multi-information display.
■Low engine oil pressure warning light (warning buzzer)*
If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by any auth orized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
Actions to the warning li ghts or warning buzzers
Warning
lightWarning light/Details/Actions
(red)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
This light also comes on when the park ing brake is not released. If the light
turns off after the parking brake is fully released the system is operating nor-
mally.
 Immediately stop the vehicle in a safe place and contact any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Continuing to drive the vehicle may be dangerous.
Warning
lightWarning light/Details/Actions
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Warning
lightWarning light/Details/Actions
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and contact any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.

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7-2. Steps to take in an emergency
The ABS warning light comes on. ( P.369)
●Malfunction in the charging system
The charging system warning light comes on. ( P.368)
●Malfunction in the brake system
The brake system warning light comes on. ( P.368)
●Malfunction in the tire pressure warning system
The tire pressure warning light comes on. ( P.374)
●Remaining fuel level is low
The low fuel level warn ing light comes on. (P.373)
■If “Hybrid System Overheated Reduced Output Power” is shown (LC500h)
This message may be displayed when driving un der severe operating conditions. (For exam- ple, when driving up a long steep hill.) Stop and check. (P.403)
■If “Traction Battery Needs to be Protected Refrain from the Use of N Position” is shown
(LC500h)
The remaining charge for the hybrid battery (tr action battery) is low. As the hybrid battery
(traction battery) cannot be charged when the sh ift position is in N, when stopping the vehi- cle for a long period of time, shift the shift position to P.
■If “Traction Battery needs to be Protected Shift into P to Restart” is shown (LC500h)
The remaining charge for the hybrid battery (tr action battery) is low, because the shift posi- tion has been shifted to N for a long period of time. When moving the vehicle, shift the shift position to P and restart the hybrid system.
■If “Shift to P Before Exiting Vehicle” is shown
The driver’s door is opened without turning the engine switch to off with the
shift position in any position other than P. Shift the shift position to P.
■If “Shift Is in N Release Accele rator Before Shifting” is shown
The accelerator pedal has been depressed when the shift position is in N. Release the accel-
erator pedal and shift the shift position to D or R.
■If “Depress Brake when Vehicle Is Stoppe d Hybrid System May Overheat” is shown (LC500h)
The message may be displayed when the accelerator pedal is depressed to hold the vehicle while the vehicle is stopped on an uphill etc. The hybrid system may overheat. Release the accelerator pedal and depress the brake pedal.
■If “Shift system malfunction Driving unavailable” is shown
There is a malfunction in the shift control system. Have the vehicle inspected by any autho- rized Lexus retailer or Lexus authorized repa irer, or any reliable repairer immediately.
■If “Auto Power Off to Conserve Battery” is shown
LC500: Power was turned off due to the automatic power off function. Next time when starting the
engine, increase the engine speed slightly an d maintain that level for approximately 5 min- utes to recharge the 12-volt battery.
LC500h:

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7-2. Steps to take in an emergency
• “Shift system malfunction” • “P switch malfunction”• “Shift system unavailable”
●If any of the following messages is shown on the multi-information display, it may indicate a malfunction in a system or part. Immediately have the vehicle inspected by any autho-
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer. • “Hybrid System Malfunction” (LC500h)•“Check Engine”
• “Hybrid Battery System Malfunction” (LC500h) • “Accelerator System Malfunction”
●If any of the following messages is shown on the multi-information display, it may indicate a malfunction. Immediately stop the vehicle and contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
•“Braking Power Low” • “Charging System Malfunction”• “Oil Pressure Low”
●LC500h: If “Aux Battery Low” is shown, observe the following.
• If the message disappears in a few minutes*
Keep the hybrid system operating for more than approximately 15 minutes to charge the 12-volt battery.
• If the message does not disappear Refer to “If the 12-volt battery is discharged” ( P.392) to start the hybrid system*: It is displayed for approximately 6 seconds.
●If “Battery low” is shown, the 12-volt battery charge is insufficient. Recharge or replace the 12-volt battery.
●LC500h: If “Maintenance Required for Traction battery Cooling Parts” is shown, the fil- ters may be clogged, the air intake vents may be blocked, or there may be a gap in the
duct. Therefore, perform the following correction procedure. • If the air intake vents and filters of the hybrid battery (traction battery) are dirty, perform the procedure on P.309 to clean them.
• If the warning message is shown when the air in take vents and filters of the hybrid battery (traction battery) are not dirty, have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■If a message that indicates the need for visi ting your any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer is shown
The system or part shown on th e multi-information display is malfunctioning. Have the vehi-
cle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer immediately.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio sound.
NOTICE
■While the engine oil level warning message is displayed
Continued engine operation with low engine oil will damage the engine.

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7-2. Steps to take in an emergency
ponents when the vehicle is running at a low speed for an extended period, such as in heavy traffic.
■When the 12-volt battery is removed or
discharged
●Information stored in the ECU is cleared.
When the 12-volt battery is depleted, have the vehicle inspected at any autho-rized Lexus retailer or Lexus authorized
repairer.
●Some systems may require initialization.
( P.436)
■When removing the 12-volt battery ter- minals
When the 12-volt battery terminals are removed, the information stored in the ECU is cleared. Before removing the 12-
volt battery terminals, contact any autho- rized Lexus retailer or Lexus authorized repairer.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the
vehicle is not in use, due to natural dis- charge and the draining effects of certain
electrical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-charge, and the engine
may be unable to start. (The 12-volt battery recharges automatically during driving.)
■When recharging or replacing the 12-volt battery
●In some cases, it may not be possible to unlock the doors using the smart entry &
start system when the 12-volt battery is discharged. Use the wireless remote control or the mechanical key to lock or
unlock the doors.
●The engine may not start
on the first attempt after the 12-volt bat- tery has recharged but will start normally after the second attempt. This is not a
malfunction.
●The engine switch mode
is memorized by the vehicle. When the 12-volt battery is reconnected, the system will return to the mode it was in before
the 12-volt battery was discharged.
Before disconnecting the 12-volt battery, turn the engine switch off. If you are unsure what mode the engine
switch was in before the 12-volt battery discharged, be especially careful when reconnecting the 12-volt
battery.
●If the 12-volt battery discharges, it may
not be possible to shift the shift position to other positions. In this case, the vehicle cannot be towed without lifting both rear
wheels because the rear wheels will be locked. ( P.363)
■When replacing the 12-volt battery
●Use a Central Degassing type 12-volt battery (European Regulations).
●LC500: Use a 12-volt battery that the case size is same as the previous one (LN4), 20 hour rate capacity (20HR) is
equivalent (80Ah) or greater, and per- formance rating (CCA) is equivalent (685A) or greater.
LC500h: Use a 12-volt battery that the case size is same as the previous one (LN3), 20 hour rate capacity (20HR) is
equivalent (70Ah) or greater, and perfor- mance rating (CCA) is equivalent
(600A) or greater. • If the sizes differ, the 12-volt battery can-not be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehicle is not used is a short time, the 12-volt battery
may discharge and engine may not be able to start.
●Use a 12-volt battery with a handle. If a 12-volt battery without a handle is used, removal is more difficult.
●After exchanging, firmly attach the fol-lowing items to the exhaust hole of the 12-
volt battery. • Use the exhaust hose that was attached to the 12-volt battery before exchanging.
• Use the exhaust hole plug included with the 12-volt battery exchanged or the one installed on the battery prior to the
exchange. (Depending on the 12-volt battery to be exchanged, the exhaust hole may be plugged.)

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7-2. Steps to take in an emergency
1Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the engine.
2 If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the engine has cooled down
sufficiently, inspect the hoses and
WARNING
■After recharging the 12-volt battery
Have the 12-volt battery inspected at any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer as soon as possible. If the 12-volt battery is deteriorating, continued use may cause the 12-volt battery to emit a
malodorous gas, which may be detri- mental to the health of passengers.
■When exchanging the 12-volt battery
After exchanging, securely attach the exhaust hose and exhaust hole plug to
the exhaust hole of the exchanged 12- volt battery. If not properly installed, gases (hydrogen) may leak into the vehi-
cle interior, and there is the possible dan- ger of the gas igniting and exploding.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-gled in the cooling fan or engine drive
belt.
■To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-volt bat-tery from another vehicle in an emer-
gency. It cannot be used to jump start another vehicle.
If your vehi cle overheats
(LC500)
The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge ( P.88) is in the red zone
or a loss of engine power is expe-
rienced. (For example, the vehicle
speed does not increase.)
 “Engine Coolant Temp High” is
shown on the multi-information
display.
 Steam comes out from under the
hood.
Correction procedures

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8-1. Specifications
Vehicle specifications
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact any auth orized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact any auth orized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
Charging rates:
Quick charge
Slow charge
15 A max.
5 A max.
Automatic transmission (LC500)
Fluid capacity*8.8 L (9.3 qt., 7.7 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration in
shift quality, locking up of your transmission accompanied by vibration, and ultimately damage the transmission of your vehicle.
Hybrid transmission (LC500h)
Fluid capacity*6.8 L (7.2 qt., 6.0 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration in shift quality, locking up of your transmission accompanied by vibration, and ultimately damage the transmission of your vehicle.