2021 Lexus LC500h battery location

1163-2. Opening, closing and locking the doors and trunk
■Trunk light
The trunk light turns on when the trunk is
opened.
■Function to prevent the trunk being
locked with the electronic key inside
●When both side doors are locked, closing
the trunk lid with the electronic key left
inside the trunk will sound an alarm.
In this case, the trunk lid can be opened
by pressing the trunk release button on
the trunk lid.
●If the spare electronic key is put in the
trunk with both side doors locked, the key
confinement prevention function is acti-
vated so the trunk can be opened. In
order to prevent theft, take all electronic
keys with you when leaving the vehicle.
●If the electronic key is put in the trunk with
both side doors locked, the key may not
be detected depending on the location of
the key and the surrounding radio wave
conditions. In this case, the key confine-
ment prevention function cannot be acti-
vated, causing the trunk to be locked
when the trunk lid is closed. Make sure to
check where the key is before closing the
trunk.
●The key confinement prevention function
cannot be activated if either door is
unlocked. In this case, open the trunk
using the trunk opener switch.
●If the trunk lid is closed by a hand having
the electronic key when the both side
doors are locked, a warning buzzer may
sound. In this case, the trunk is not locked.
Do not close the trunk lid by a hand hav-
ing the electronic key.
■Internal trunk release lever
The trunk lid can be opened by pulling the
glow-in-the-dark lever located on the inside
of the trunk to the side.
The lever will continue to glow for some
time after the trunk lid is closed.
■If the smart access system with push-
button start or the wireless remote con-
trol does not operate properly
Use the trunk opener switch to unlock the
trunk. ( P.367)
Replace the key battery with a new one if it
is depleted. ( P.330)
■If a symbol indicating the trunk opens is
shown on the multi-information display
 P.113
■If the 12-volt batte ry is discharged
The trunk cannot be locked and unlocked
using the smart access system with push-
button start or wireless remote control.
Lock or unlock the trunk using the mechan-
ical key. ( P.369)
■Customization
The trunk unlocking operation can be
changed. (Customizable features:
 P.405)
Using the trunk grip, lower the trunk
without applying force to the side and
push the trunk down from the outside
to close it.
Closing the trunk

1203-2. Opening, closing and locking the doors and trunk
■Note for the entry function
●Even when the electronic key is within the
effective range (detection areas), the sys-
tem may not operate properly in the fol-
lowing cases:
• The electronic key is too close to the win- dow or outside door handle, near the
ground, or in a high place when the doors
are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear
bumper center when the trunk is opened.
• The electronic key is on the instrument panel, rear package tray or floor, or in the
door pockets or glove box when the
engine is started or
engine switch modes are
changed.
●Do not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the radio wave reception
conditions, it may be detected by the
antenna outside the cabin and the doors
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
●As long as the electron ic key is within the
effective range, the doors may be locked
or unlocked by anyone. However, only
the doors detecting the electronic key
can be used to unlock the vehicle.
●Even if the electronic key is not inside the
vehicle, it may be possible to start the
engine if the electronic
key is near the window.
●The doors may unlock or lock if a large
amount of water spla shes on the door
handle, such as in the rain or in a car
wash, when the electronic key is within
the effective range. (The doors will auto-
matically be locked after approximately
60 seconds if the d oors are not opened
and closed.)
●If the wireless remote control is used to
lock the doors when the electronic key is
near the vehicle, there is a possibility that
the door may not be unlocked by the
entry function. (Use the wireless remote
control to unlock the doors.)
●When the lock operation is performed using the lock sensor, recognition signals
will be shown up to two consecutive
times. After this, no recognition signals
will be given.
●If the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. In this case, follow the follow-
ing correction procedures to wash the
vehicle:
• Place the electronic key in a location 6 ft.
(2 m) or more away from the vehicle.
(Take care to ensure that the key is not
stolen.)
• Set the electronic key to battery-saving mode to disable the smart access system
with push-button start. ( P.119)
●If the electronic key is inside the vehicle
and a door handle becomes wet during a
car wash, a message may be shown on
the multi-information display and a
buzzer will sound outside the vehicle. To
turn off the alarm, lock both side doors.
●If an outside door handle is not retracted
during a car wash, a door may be opened
or an outside door handle may be dam-
aged. Make sure that the outside door
handles are retracted before using the
car wash.
●A sudden handle operation or a handle
operation immediately after entering the
effective range may prevent the doors
from being unlocked. Touch the door
unlock sensor and check that the doors
are unlocked before pulling the door
handle again.
●Unlocking the vehicle may take more
time if another electronic key is within the
effective range.
■When the vehicle is not driven for
extended periods
●To prevent theft of the vehicle, do not
leave the electronic key within 6 ft. (2 m)
of the vehicle.
●The smart access system with push-but-
ton start can be deactivated in advance.
●Setting the electronic key to battery-sav-
ing mode helps to reduce key battery
depletion. ( P.119)

3116-3. Do-it-yourself maintenance
6
Maintenance and care
LC500hThe 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
access system with pu sh-button start may
not be possible immediately after recon-
necting the 12-volt battery. If this hap-
pens, use the wireless remote control or
the mechanical key to lock/unlock the
doors.
●Start the engine with the
engine switch in ACCES-
SORY mode. The engine tem> 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
WARNING
■When adding washer fluid
Do not add washer fluid when the engine
is hot or running ating> as washer fluid contains alcohol
and may catch fire if spilled on the engine
etc.
NOTICE
■Do not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze instead of washer fluid.
Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to problems
of the washer fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle.
12-volt battery
Location

3136-3. Do-it-yourself maintenance
6
Maintenance and care
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
Check that the level is upper than the
center between the bottom of the bat-
tery lid and “LOWER LEVEL” line.
Bottom of the battery lid
“LOWER LEVEL” line
Center of and
If the fluid level is below , replace the
12-volt battery.
Check if the treadw ear indicators are
showing on the tires. Also check the
tires for uneven wear, such as excessive
wear on one side of the tread.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is
shown by a “TWI” or “ ” mark, etc.,
molded into the sidewall of each tire.
Replace the tires if the treadwear indica-
tors are showing on a tire.
Exterior
Checking 12-volt battery fluid
A
B
A
B
CAB
C
Tires
Replace or rotate tires in accor-
dance with maintenance schedules
and treadwear.
Checking tires
A
B
C

3607-2. 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. Immediatel y have the vehicle inspected by your Lexus
dealer.
• “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, the vehicle may
have run out of fuel. Stop the vehicle in a safe place and, if the fuel level is low, refuel the
vehicle. ( P.65)
• “Hybrid system stopped” (LC500h)
• “Engine stopped”(LC500h)
●If any of the following messages is shown on the multi-information di splay, it may indicate
a malfunction. Immediately stop the vehicle and contact your Lexus dealer.
• “Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low”
●If “Aux Battery Low” is shown, observe the following. (LC500h)
• 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.369) 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.
●If “Maintenance Required for Traction battery Cooling Parts” is shown, the filters may be
clogged, the air intake vents may be blocked, or there may be a gap in the duct. There-
fore, perform the following correction procedure. (LC500h)
• If the air intake vents and filters of the hybrid battery (traction battery) are dirty, perform the procedure on P.291 to clean them.
• If the warning message is shown when the air intake vents and filters of the hybrid battery
(traction battery) are not dirty, have th e vehicle inspected by your Lexus dealer.
■If a message that indicates the need fo r visiting your Lexus dealer is shown
The system or part shown on the multi-information display is malfunctioning. Have the vehi-
cle inspected by your Lexus dealer immediately.
■Warning buzzer
In some cases, the buzzer may not be heard du e 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.

435Alphabetical index
Alphabetical index
A
A/C ................................................................... 260Air conditioning filter ............................... 328
Automatic air conditioning system ...260
Micro dust and pollen filter................... 265
ABS (Anti-lock Brake System).............. 243 Function .......................................................... 243
Warning light ...............................................348
ACA (Active Cornering Assist) ........... 243
Active Cornering Assist (ACA) ........... 243
Active rear wing........................................... 240
Adaptive Variable Suspension System .......................................................................... 243
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi- tions .................................................................... 31
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ............................................................. 39
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions........................................................ 31
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ......................................348
Air conditioning filter ................................. 328
Air conditioning system ............................ 260 Air conditioning filter ............................... 328
Automatic air conditioning system ...260
Micro dust and pollen filter................... 265
Alarm ....................................................................72 Alarm ...................................................................72
Warning buzzer ......................................... 347 Anchor brackets ..................................... 45, 53
Antennas (smart access
system with push-
button start) ................................................... 117
Anti-lock Brake System (ABS).............. 243 Function .......................................................... 243
Warning light .............................................. 348
Approach warning...................................... 220
Automatic headlight leveling system ....182
Automatic High Beam ............................... 184
Automatic light control system................. 181
Automatic transmission ..............................162 M mode ........................................................... 168
Paddle shift switches .......................167, 168
Snow mode.................................................... 166
Auxiliary net................................................... 273
Average fuel economy................................. 88
Average vehicle speed ................................ 88
B
Back-up lights Replacing light bulbs ................................336
Battery (12-volt battery) .. ............................ 311
Battery checking ........................................... 311
If the 12-volt battery is discharged ... 369
Preparing and checking before winter ......................................................................... 250
Replacing ....................................................... 374
Warning light ............................................... 347
Battery (traction batter y) ............................ 65
Blind Spot Monitor (BSM).........................231 Blind Spot Monitor function .................235
Rear Cross Traffic Alert function ....... 237
Brake Brake hold .......................................................179
Fluid...................................................................392
Parking brake ................................................176
Regenerative braking ................................. 63
Warning light .................................... 347, 351
Warning message .....................................357
Brake assist .................................................... 243
Break-in tips.....................................................143
Brightness control

Alphabetical index439
Average fuel consumption after refueling............................................................................88
Average fuel economy ..............................88
Current fuel consumption........................88
Fuel filler door .................................................. 191 If the fuel filler door cannot be opened.........................................................................366
Refueling ........................................................... 191
Fuel gauge ......................................................... 82
Fuel pump shut off syst em........................ 346
Fuses ...................................................................331
G
Garage door opener ................................. 279
Gauges ............................................................... 82
Gear positions ................................................. 88
G-force............................................................... 89
Glove box ....................................................... 273
Glove box light ............................................. 273
Grocery bag hooks .................................... 275
H
Headlights ......................................................... 181 Automatic High Beam system............. 184
Light switch ...................................................... 181
Replacing light bulbs................................ 336
Headlights aim .............................................. 335
Head restraints ................................................ 131
Head-up display.............................................. 93
Heated steering wheel .............................. 268
Heaters Air conditioning system..........................260
Heated steering wheel............................268
Outside rear view mirrors ...................... 261
Seat heaters ..................................................268
High-voltage components ......................... 65
Hill-start assist control ............................... 243
Hood ................................................................. 302 Open ............................................................... 302
Pop Up Hood ................................................ 36
Hooks Cargo hooks................................................ 275
Coat hooks ................................................... 278
Grocery bag hooks.................................. 275
Retaining hooks (floor mat) ..................... 22
Horn ....................................................................133
Hybrid battery (traction battery) Location .............................................................65
Specification ................................................ 388
Warning message ........................................68
Hybrid battery (traction battery) air vents ............................................................................. 68
Hybrid system .................................................. 62 Emergency shut off system......................68
Energy monitor/consumption screen.............................................................................98
EV drive mode............................................. 160
High voltage components .......................65
Hybrid System Indicator ........................... 97
Hybrid system precautions......................65
Hybrid vehicle driving tips ....................248
If the hybrid system will not start ........364
Overheating ................................................ 380
Power (ignition) switch ............................ 156
Regenerative braking ................................. 63
Starting the hybrid system ...................... 156
Vehicle proximity noti fication system. 64
Hybrid System Indicator...............................97
Hybrid transmission......................................169 M mode ............................................................174
Paddle shift switches ........................173, 174
Snow mode.....................................................173
I
I/M test ............................................................ 299
IdentificationEngine..............................................................387
Vehicle ........................................................... 386
Ignition switch (engine switch).................152 Auto power off function................ 155, 160
Changing the engine switch modes . 155
If your vehicle has to be stopped in an emergency ................................................ 338

Alphabetical index445
Uniform Tire Quality Grading............399
Tire pressure warning system ..................315 Function ............................................................315
Initializing ........................................................ 318
Installing tire pressure warning valves and transmitters ........................................ 317
Registering ID codes ............................... 320
Warning light ............................................... 352
Tires.....................................................................313 Chains ...............................................................251
Checking .........................................................313
If you have a flat tire .................................. 362
Inflation pressure........................................ 325
Information .................................................... 397
Replacing ......................................................... 321
Rotating tires ..................................................315
Run-flat tires ...................................... 315, 362
Size.................................................................... 393
Snow tires ......................................................250
Tire inflation pressu re display function
...........................................................................315
Tire pressure warning system ...............315
Warning light ............................................... 352
Tools.................................................................. 322
Top tether strap............................................... 53
Total load capacity ....... ............................... 386
Towing Dinghy towing ................................................ 151
Emergency towing ..................................... 341
Towing eyelet .............................................. 343
Trailer towing .................................................. 151
TRAC (Traction Control) ........................ 243
Traction battery (hybrid battery) ............. 65 Hybrid battery (traction battery) air vents............................................................................ 68
Location............................................................. 65
Specification ................................................ 388
Warning message........................................ 68
Traction Control (TRAC) ........................ 243
Traction motor (electric motor) ............... 62
Trailer towing ................................................... 151
Transmission Automatic transmission ............................162
Driving mode select switch .................. 224
Hybrid transmission................................... 169
M mode ................................................. 168, 174
Paddle shift switches .. 167, 168, 173, 174
Snow mode.......................................... 166, 173
Trip meters ........................................................ 82
Trunk .................................................................... 114 Internal trunk release lever....................... 116
Smart access system with push-button start ................................................................... 115
Trunk features .............................................. 275
Trunk grip ......................................................... 116
Trunk light ......................................................... 116
Trunk opener main switch........................ 117
Trunk opener switch ................................... 115
Wireless remote control ........................... 115
Trunk light .......................................................... 116
Turn signal lights ............................................ 175 Replacing light bulbs ................................336
Turn signal lever ...........................................175
U
Units ..................................................................... 89
V
Vanity lights.....................................................277Wattage ..........................................................394
Vanity mirrors ................................................277
Variable Gear Ratio Steering (VGRS) .......................................................................... 243
VDIM (Vehicle Dynamics Integrated Man- agement)...................................................... 244
Vehicle data recordings ..................................7
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 244
Vehicle identification number ................ 386
Vehicle Stability Control (VSC) ........... 243
Ventilators (seat ventilators)................... 268
VGRS (Variable Gear Ratio Steering) .......................................................................... 243