
1123-2. 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.355)
Replace the key battery with a new one if it 
is depleted. ( P.318)
■If a symbol indicating the trunk opens is 
shown on the multi-information display
 P.109
■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.357)
■Customization
The trunk unlocking operation can be 
changed. (Customizable features:  P.391)
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 

1163-2. Opening, closing and locking the doors and trunk
• 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 
engine switch 
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 
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.115)
●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.
■To operate the system properly
●Make sure to carry the electronic key 
when operating the system. Do not get 
the electronic key too close to the vehicle 
when operating the system from the out-
side of the vehicle.
Depending on the position and holding 
condition of the elec tronic key, the key 
may not be detected correctly and the 
system may not operate properly. (The 
alarm may go off accidentally, or the door 
lock prevention function may not oper-
ate.) 

2996-3. 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 
engine switch 
SORY mode. The engine 
engine 
mally from the second attempt.
●The engine switch 
is recorded by the vehicle. If the 12-volt 
WARNING
■When adding washer fluid
Do not add washer fluid when the engine 
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 

3016-3. 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 

3487-2. Steps to take in an emergency
• “Access System with Elec. Key Malfunction”
• “Shift system malfunction”
• “P switch malfunction”
• “Shift system unavailable”
●If any of the following messages is shown on the multi-information di splay, 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”
• “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.357) 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.279 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. 

420Alphabetical index
Alphabetical index
A
A/C ................................................................... 248Air conditioning filter .................................316
Automatic air conditioning system ... 248
Micro dust and pollen filter................... 253
ABS (Anti-lock Brake System)................231 Function ............................................................ 231
Warning light ............................................... 336
Active rear wing........................................... 229
Adaptive Variable Suspension System232
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for  your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi- tions .................................................................. 30
Curtain shield airbag  precautions ....... 33
Front passenger occupant classification  system ............................................................. 38
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ......... 30
Side airbag precautions ............................ 33
Side and curtain shield airbags operating  conditions...................................................... 30
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ...................................... 336
Air conditioning filter ...................................316
Air conditioning system ............................ 248 Air conditioning filter .................................316
Automatic air conditioning system ... 248
Micro dust and pollen filter................... 253
Alarm ..................................................................... 71 Alarm .................................................................... 71
Warning buzzer ......................................... 335
Anchor brackets ..................................... 44, 52
Antennas (smart access system with push- button start) ................................................... 113 Anti-lock Brake System (ABS)................231
Function ............................................................231
Warning light ...............................................336
Approach warning...................................... 209
Automatic headlight leveling system .... 174
Automatic High Beam ................................ 176
Automatic light control system................ 173
Automatic transmission ............................. 155 M mode ........................................................... 160
Paddle shift switches ...................... 159, 160
Snow mode.................................................... 159
Auxiliary net................................................... 260
Average fuel economy................................. 85
Average vehicle speed ................................ 85
B
Back-up lights Replacing light bulbs ................................ 324
Battery (12-volt battery) ........................... 299 Battery checking ........................................299
If the 12-volt battery is discharged ....357
Preparing and checking before winter..........................................................................238
Replacing ........................................................ 361
Warning light ...............................................335
Battery (traction batter y) ............................ 64
Blind Spot Monitor (BSM)....................... 220 Blind Spot Monitor function ................. 223
Rear Cross Traffic Alert function ....... 226
Brake Brake hold ........................................................ 171
Fluid...................................................................378
Parking brake ............................................... 168
Regenerative braking ................................. 62
Warning light .................................. 335, 339
Warning message .....................................345
Brake assist ......................................................231
Break-in tips..................................................... 137
Brightness control Instrument panel light control.................83
BSM (Blind Spot Monitor)....................... 220 Blind Spot Monitor function ................. 223 

424Alphabetical index
Refueling ..........................................................182
Fuel gauge ......................................................... 80
Fuel pump shut off system........................ 334
Fuses ...................................................................319
G
Garage door opener ................................. 266
Gauges ............................................................... 80
Glove box ....................................................... 260
Glove box light ............................................. 260
Grocery bag hooks .................................... 262
H
Headlights ........................................................ 173 Automatic High Beam system.............. 176
Light switch ..................................................... 173
Replacing light bulbs................................ 324
Headlights aim .............................................. 323
Head restraints ...............................................125
Head-up display.............................................. 90
Heated steering wheel .. ............................ 255
Heaters Air conditioning system.......................... 248
Heated steering wheel............................ 255
Outside rear view mirrors .................... 249
Seat heaters .................................................. 255
High-voltage components ......................... 64
Hill-start assist control ............................... 232
Hood ................................................................. 290 Open ...............................................................290
Pop Up Hood ................................................ 36
Hooks Cargo hooks................................................ 262
Coat hooks ................................................... 265
Grocery bag hooks ................................. 262
Retaining hooks (floor mat)......................22
Horn .................................................................... 127
Hybrid battery (traction battery) Location............................................................. 64
Specification ................................................. 374
Warning message........................................ 67 Hybrid battery (traction battery) air vents
..............................................................................67
Hybrid system .................................................... 61 Emergency shut off system...................... 67
Energy monitor/consumption screen95
EV drive mode............................................. 153
High voltage components ....................... 64
Hybrid System Indicator ........................... 94
Hybrid system precautions...................... 64
Hybrid vehicle driving tips ....................236
If the hybrid system will not start ........352
Overheating ................................................. 367
Power (ignition) switch ............................ 149
Regenerative braking ................................. 62
Starting the hybrid system ...................... 149
Vehicle proximity noti fication system. 63
Hybrid System Indicator.............................. 94
Hybrid transmission....................................... 161 M mode ........................................................... 166
Paddle shift switches .......................165, 166
Snow mode.................................................... 165
I
I/M test ............................................................ 287
IdentificationEngine.............................................................. 372
Vehicle ............................................................ 372
Ignition switch (engine switch).................146 Auto power off function........................... 149
Changing the engine  switch modes . 148
If your vehicle has to be stopped in an  emergency .................................................326
Starting the engine ..................................... 146
Ignition switch (power  switch) .................149
Auto power off function........................... 152
Changing the power switch modes . 152
If your vehicle has to be stopped in an  emergency .................................................326
Starting the hybrid system ...................... 149
Illuminated entry system ........................... 258
Immobilizer system........................................ 69
Indicators ............................................................76 

430Alphabetical index
Inflation pressure..........................................313
Information ....................................................383
Replacing .......................................................309
Rotating tires ................................................303
Run-flat tires .................................... 303, 350
Size.................................................................... 379
Snow tires ...................................................... 238
Tire inflation pressure display function
.........................................................................303
Tire pressure warning system .............303
Warning light ...............................................340
Tools................................................................... 310
Top tether strap............................................... 52
Total load capacity ...................................... 372
Towing Dinghy towing ...............................................145
Emergency towing ................................... 329
Towing eyelet ................................................331
Trailer towing .................................................145
TRAC (Traction Control) ........................ 232
Traction battery (hybrid battery) ............. 64 Hybrid battery (traction battery) air vents............................................................................ 67
Location............................................................. 64
Specification ................................................. 374
Warning message........................................ 67
Traction Control (TRAC) ........................ 232
Traction motor (electric motor) ................. 61
Trailer towing ..................................................145
Transmission Automatic transmission ........................... 155
Driving mode select switch .................... 213
Hybrid transmission .................................... 161
M mode .................................................160, 166
Paddle shift switches . 159, 160, 165, 166
Snow mode .........................................159, 165
Trip meters ........................................................ 80
Trunk .................................................................... 110 Internal trunk release lever .......................112
Smart access system with push-button start ..................................................................... 111
Trunk features.............................................. 262 Trunk grip ......................................................... 112
Trunk light ......................................................... 112
Trunk opener main switch........................ 113
Trunk opener switch ..................................... 111
Wireless remote control ............................. 111
Trunk light .......................................................... 112
Turn signal lights ............................................ 167 Replacing light bulbs ................................ 324
Turn signal lever ...........................................167
U
Units ..................................................................... 86
V
Vanity lights.................................................... 264Wattage ......................................................... 380
Vanity mirrors ............................................... 264
Variable Gear Ratio  Steering (VGRS)232
VDIM (Vehicle Dynamics Integrated Man- agement)...................................................... 232
Vehicle data recordings ..................................7
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 232
Vehicle identification number ................ 372
Vehicle Stability Control (VSC) .............231
Ventilators (seat ventilators)................... 255
VGRS (Variable Gear Ratio Steering)232
VSC (Vehicle Stability Control) .............231
W
Warning buzzers Approach warning................................... 209
Brake system................................................335
Downshifting ................... 160, 161, 166, 167
Intuitive parking assist ................................219
LKA (Lane-Keeping Assist) .................. 196
Open door ...........................................107, 109
Open hood .................................................... 109
Open trunk .................................................... 109
Open window .............................................. 133