2021 Lexus LC500C stop start

933-1. Key information
3
Before driving
( P.297). However, as there is a danger
that the electronic key may be damaged, it
is recommended that replacement be car-
ried out by your Lexus dealer.
●To avoid serious deterioration, do not
leave the electronic key within 3 ft. (1 m)
of the following electr ical appliances that
produce a magnetic field:
• TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■Replacing the battery
 P.297
■Confirmation of the registered key
number
The number of keys already registered to
the vehicle can be confirmed. Ask your
Lexus dealer for details.
■If “A New Key has been Registered
Contact Your Dealer for Details” is
shown on the multi-information display
This message will be displayed each time
the driver’s door is opened when the doors
are unlocked from the outside for approxi-
mately 10 days after a new electronic key
has been registered.
If this message is disp layed but you have not
had a new electronic key registered, ask
your Lexus dealer to check if an unknown
electronic key (other than those in your
possession) has been registered.
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to
strong shocks or bend them.
●Do not expose the keys to high tem-
peratures for long periods of time.
●Do not get the keys wet or wash them
in an ultrasonic washer etc.
●Do not attach metallic or magnetic
materials to the keys or place the keys
close to such materials.
●Do not disassemble the keys.
●Do not attach a sticker or anything else
to the surface of the electronic key.
●Do not place the keys near objects that
produce magnetic fields, such as TVs,
audio systems and induction cookers.
●Do not place the keys near medical
electrical equipment such as low-fre-
quency therapy equipment or micro-
wave therapy equipment, and do not
receive medical attent ion with the keys
on your person.
■Carrying the electronic key on your
person
Carry the electronic key 3.9 in. (10 cm)
or more away from electric appliances
that are turned on. Radio waves emitted
from electric applianc es within 3.9 in. (10
cm) of the electronic key may interfere
with the key, causing the key to not func-
tion properly.
■In case of a smart access system with
push-button start malfunction or
other key-related problems
 P.330
■When an electronic key is lost
 P.329
■Handling the card key (if equipped)
●If the battery or card key terminals get
wet, the battery may corrode and the
card key may stop working.
If the key is dropped into water, or if
drinking water, etc. is spilled on the
key, immediately remove the battery
cover and wipe the battery and termi-
nals. (To remove the battery cover,
lightly grasp and pull it.) If the battery is
corroded, have your Lexus dealer
replace the battery.

973-2. Opening, closing and locking the doors and trunk
3
Before driving
■Switching the door unlock function
It is possible to set which doors the entry
function unlocks using the wireless remote
control.
1 Turn the engine switch off.
2 When the indicator light on the key sur-
face is not on, press and hold ,
or for approximately 5
seconds while pressing and holding
.
The setting changes each time an operation
is performed, as shown below. (When
changing the setting continuously, release
the buttons, wait for at least 5 seconds, and
repeat step 2 .)
To prevent unintended triggering of the
alarm, unlock the doors using the wireless
remote control and open and close a door
once after the settings have been changed.
(If a door is not opened within 60 seconds
after is pressed, the doors will be
locked again and the alarm will automati-
cally be set.) In a case that the alarm is triggered, imme-
diately stop the alarm. (
P.65)
■Impact detection door lock release sys-
tem
In the event that the vehicle is subject to a
strong impact, both side doors are
unlocked. Depending on the force of the
impact or the type of accident, however, the
system may not operate.
■Operation signals
A buzzer sounds and the emergency flash-
ers flash to indicate that the doors have
been locked/unlocked. (Locked: once;
Unlocked: twice)
A buzzer sounds to in dicate that the win-
dows are operating.
Depending on the open ing/closing state of
the soft top roof, the buzzer may be
delayed.
■Security feature
If a door is not opened within approximately
60 seconds after the vehicle is unlocked,
the security feature automatically locks the
vehicle again.
■Open door warning buzzer
If an attempt to lock the doors is made when
a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the
door to stop the buzzer, and lock the vehi-
cle once more.
■Setting the alarm
Locking the doors will set the alarm system.
(  P.65)
■Conditions affecting the operation of
the smart access system with push-but-
ton start or wireless remote control
 P.105
■If the smart access system with push-
button start or the wireless remote con-
trol does not operate properly
Use the mechanical key to lock and unlock
the doors. ( P.330)
Replace the key battery with a new one if it
is depleted. ( P.297)
■If the battery is discharged
The doors cannot be locked and unlocked
Multi-information display/BeepUnlocking function
Exterior: Beeps 3 times
Interior: Pings once
Pushing the depres-
sion on the front edge
of the driver’s door
handle unlocks only
the driver’s door.
Pushing the depres-
sion on the front edge
of the passenger’s
door handle unlocks
both side doors.
Exterior: Beeps twice
Interior: Pings once
Pushing the depres-
sion on the front edge
of either door handle
unlocks both side
doors.

1053-2. Opening, closing and locking the doors and trunk
3
Before driving
charged while the vehicle is not in operation
for a long time.
●In the following situations, the smart
access system with pu sh-button start may
take some time to unlock the doors.
• The electronic key has been left within approximately 6 ft. (2 m) of the outside of
the vehicle for 10 minutes or longer.
• The smart access system with push-but- ton start has not been used for 5 days or
longer.
●If the smart access system with push-but-
ton start has not been used for 14 days or
longer, the doors cannot be unlocked at
the passenger door. In this case, push the
depression on the front edge the driver’s
door handle, or use the wireless remote
control or mechanical key, to unlock the
doors.
■Turning an electronic key to battery-
saving mode
When battery-saving mode is set, battery
depletion is minimized by stopping the
electronic key from receiving radio waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is set, the
smart access system with push-button start
cannot be used. To cancel the function,
press any of the electronic key buttons.
●Electronic keys that will not be used for
long periods of time can be set to the bat-
tery-saving mode in advance.
■Conditions affe cting operation
The smart access system with push-button
start uses weak radio waves. In the follow-
ing situations, the communication between
the electronic key and the vehicle may be
affected, preventing the smart access sys- tem with push-button start, wireless remote
control and engine immobilizer system
from operating properly.
(Ways of coping:
P.330)
●When the electronic key battery is
depleted
●Near a TV tower, electric power plant,
gas station, radio stat ion, large display,
airport or other fac ility that generates
strong radio waves or electrical noise
●When carrying a portable radio, cellular
phone, cordless phone or other wireless
communication device
●When the electronic key is in contact
with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil
inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit
radio waves) are being used nearby
●When carrying the electronic key
together with the following devices that
emit radio waves
• Another electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or
metallic objects are attached to the rear
window
●When the electronic key is placed near a
battery charger or electronic devices
●When the vehicle is parked in a pay park-
ing spot where radio waves are emitted
■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

1073-2. Opening, closing and locking the doors and trunk
3
Before driving
alarm may go off accidentally, or the door
lock prevention function may not oper-
ate.)
●Do not leave the electronic key inside the
trunk.
The key confinement prevention function
may not operate, depending on the loca-
tion of the key (the inside edge of the
trunk), conditions (inside a metal bag,
close to metallic objects) and the radio
waves in the surrounding area. ( P.102)
■If an electronic key does not work prop-
erly
●If the doors cannot be locked or
unlocked and the trunk cannot be
opened, perform the following.
• Bring the electronic key close to the door
handle and perform a lock or unlock
operation.
• Bring the electronic key close to the but-
ton on the trunk ( P.101) and press the
button.
• Use the wireless remote control.
If the doors cannot be locked or unlocked by perform the above, use the mechanical
key. (
P.330)
For Canada: However, if the mechanical
key is used while the al arm system is set, the
warning will sound. ( P.65)
●If the engine cannot be started, refer to
P.331
■Customization
Settings (e. g. smart access system with
push-button start) can be changed.
(Customizable features: P.367)
If the smart access system with push-button
start has been deactivated in a customized
setting, refer to the explanations for the fol-
lowing operations.
●Locking and unloc king the doors and
opening the trunk:
Use the wireless remote control or
mechanical key. ( P.96, 102, 330)
●Starting the engine and changing engine
switch modes:  P.331
●Stopping the engine: P.147
■Certification for the smart access system with push-button start
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico

1233-5. Opening and closing the windows
3
Before driving
■Catch protection function
Window
If an object becomes caught between the
door and window while the window is open-
ing, window movement is stopped.
Rear quarter window
If an object becomes caught between the
rear quarter window an d vehicle body while
the rear quarter wind ow is opening, win-
dow movement is stopped.
■When the window cannot be opened or
closed
When the jam protection function or catch
protection function op erates unusually and
the door window cannot be opened or
closed, perform the following operations
with the power window switch of that door.
●Stop the vehicle. With the engine switch
in ON, within 4 seconds of the jam pro-
tection function or catch protection func-
tion activating, continuously operate the
power window switch in the one-touch
closing direction or one-touch opening
direction so that the door window can be
opened and closed.
●If the door window cannot be opened
and closed even when performing the
above operations, perform the following
procedure for function initialization.
1 Close both side doors.
2 Turn the engine switch to ON.
3 Close the soft top roof, and then close
the side windows an d rear quarter win-
dows.
4 Pull and hold the power window switch
in the one-touch closing direction for
approximately 6 seconds or more.
5 Press and hold the power window
switch in the one-touch opening direc-
tion. After the door window is com-
pletely opened, continue holding the
switch for an additional 1 second or
more.
6 Release the power window switch for a
moment, resume push ing the switch in
the one-touch opening direction, and
hold it there for approximately 4 sec-
onds or more. 7
Pull and hold the power window switch
in the one-touch closing direction
again. After the door window is com-
pletely closed, continue holding the
switch for a further 1 second or more.
If you release the switch while the window is
moving, start again from the beginning.
If the window reverses and cannot be fully
closed or opened, have the vehicle
inspected by your Lexus dealer.
■When the rear quarter windows cannot
be opened or closed
When the jam protection function or catch
protection function operates unusually and
the rear quarter wind ow cannot be opened
or closed, perform the following operations
with the all window control switch.
●Stop the vehicle. With the engine switch
in ON, within 4 seconds of the jam pro-
tection function or catch protection func-
tion activating, continuously operate the
all window control switch in the closing
direction or one-touc h opening direction
so that the rear quarter window can be
opened and closed.
●If the rear quarter window cannot be
opened and closed even when perform-
ing the above operations, perform the
following procedure for function initial-
ization.
1 Close both side doors.
2 Turn the engine switch to ON.
3 Close the soft top roof, and then close
the side windows.
4 Pull and hold the all window control
switch in the closing direction for
approximately 6 seconds or more.
5 Press and hold the all window control
switch in the one-touch opening direc-
tion. After the side windows and rear
quarter windows are completely
opened, continue holding the switch for
an additional 1 second or more.
6 Release the all window control switch
for a moment, resume pressing and
holding the switch in the one-touch
opening direction for approximately 4
seconds or more.

1273-6. Opening and closing the soft top roof
3
Before driving
Opening/closing status of the soft top roof
will be displayed on the multi-information
display.
When the operation of the soft top roof has
completed, the bar will turn to gray and the
buzzer will sound.
To close the side windows and rear quarter
windows, press the power window switch.
( P.122)
■Operational conditions
●The vehicle speed is less than approxi-
mately 31 mph (50 km/h) (However, it is
recommended that the soft top roof is
opened or closed when the vehicle is
stopped.)
●The engine is running (The soft top roof
can operate with the engine switch in
ON, however, in order to prevent battery
discharge, it is recommended to start the
engine.)
●The trunk lid is closed
■Situations in which the soft top roof
operation stops partway
In the following situation, operation of the
soft top roof stops partway.
●When releasing the roof switch while the
soft top roof is operating
●The vehicle speed is approximately 31
mph (50 km/h) or higher.
●If there is a malfunction in the system
●When operate the soft top roof repeat-
edly in a short period of time
●If the battery is discharged
■Situations in which the soft top roof may
not operate properly
In the following situation, the soft top roof
may not operate properly.
●When the jam protection function or
catch protection function of the power
windows operates
●When starting the en gine while operating
the roof switch (The so ft top roof that is
operating stops partway or returns to the
previous position.)
●If the roof switch has not been operated
for a long period of time during the oper-
ation of the soft top roof. (“Soft Top
Operation Not Completed Soft Top Will
Move Soon” is displayed on the multi-
information display for approximately 10
seconds, and then the soft top will move
slowly.)
●When the roof switch is operated on a
steep incline or large step
●When driving on uneven road surfaces
●In strong wind
■Switch operation when the operational
conditions are not met
If the soft top roof is fully closed and the
vehicle is stopped, continuously operating
the roof switch can operate the side win-
dows and rear quarter windows only even if
the operational conditions of the soft top
roof are not met
■While the soft top roof is operating
●The trunk opener switch cannot be oper-
ated. Press the switch after the operation
of the soft top roof has been completed.
(  P.101)
●The side windows and rear quarter win-
dows cannot be operated using the
power window switch or all window con-
trol switch. They can be operated when
the soft top roof operation partway stops,
however, they cannot be fully closed.
■If water splashes on the soft top roof,
such as in the rain or in a car wash
Wipe away any water before opening the
soft top roof. To prevent wrinkles, it is rec-
ommended to open the soft top roof after it
has completely dried.
■Soft top roof open warning buzzer
A buzzer sounds if opening or closing the
soft top roof is not completed. Open or
close the soft top roof as soon as possible.
■If a battery terminal has been discon-
nected and reconnected
If “Soft Top Operation Not Completed” is
displayed on the multi-information display
after the engine has been started, perform
the following procedure.

1283-6. Opening and closing the soft top roof
When the soft top roof of the rear win-
dow side stops near the fully closing posi-
tion.
1 Operate the roof switch to open the
soft top roof, and release the switch with
the luggage cover opened.
2 Operate the roof switch to fully close
the soft top roof.
When the rear soft top roof stops near
the fully opening position.
Operate the roof switch to fully close the soft top roof.
If the luggage cover does not operate by
performing the procedure above, check
that a warning message is displayed on the
multi-information display or the operational
conditions are met. If
the luggage cover still
does not operate, have the vehicle
inspected by your Lexus dealer.
■If the soft top roof cannot be operated properly when the roof switch is operated
In the following situations, perform the actions specified in the table, and then operate the
switch again.
●Soft top roof operation stops partway
SituationWarning messageAction
The engine switch is
turned to OFF or
ACC while the soft
top roof is operating.
-Start the engine, or turn the engine switch
to ON, and then operate the roof switch.
The vehicle speed
exceeds approxi-
mately 31 mph (50
km/h) while the soft
top roof is operating.
“SLOW DOWN to
Compelete Soft Top
Operation”Decelerate to approximately 31 mph (50
km/h), and then operate the roof switch.
The trunk lid is
opened using the
mechanical key while
the soft top roof is
operating.
-Close the trunk lid, and then operate the
roof switch.
A collision is
detected.-Contact your Lexus dealer.
The catch protection
function of a power
window is activated.
- P.123
The soft top roof is
operated manually.
“SLOW DOWN to
Compelete Soft Top
Operation”
“Soft Top Operation
Not Completed”Manually return the soft top roof to the
previous position. If the soft top roof cannot
be operated, repeat opening and closing
operations several times.

1293-6. Opening and closing the soft top roof
3
Before driving
●Soft top roof operation does not start
The outside tempera-
ture is low.-Operate the roof switch again.
The voltage of the
battery drops.-Start the engine, and then operate the roof
switch.
A thing is put in the
operating range of the
soft top roof, which
prevents the soft top
roof from operating.
-
Remove the thing on the upper part of the
windshield frame, luggage cover, storing
space of the soft top roof.
The vehicle is driven
in the strong head
wind with the soft top
roof not fully closed.
-
Partway open the soft top roof after stop-
ping or decelerating the vehicle, and then
close it.
The soft top roof is
malfunctioning.“Soft Top System Mal-
function See Owner’s
Manual”If the soft top roof cannot be operated
even when operating the switch several
times, have the vehicle inspected by your
Lexus dealer.
SituationWarning messageAction
The engine switch is
turned to OFF or
ACC.
-Start the engine or tu rn the engine switch
to ON, and then operate the roof switch.
The vehicle is driven
at the speed of
approximately 31 mph
(50 km/h) or higher.“Soft Top System
Unavailable Speed
must be under
50km/h”
Decelerate to approximately 31 mph (50
km/h), and then operate the roof switch.
The trunk lid is
opened.“Soft Top System
Unavailable Close
Trunk Lid”Close the trunk lid, and then operate the
roof switch.
The voltage of the
battery drops.“Soft Top System
Unavailable Low
Power”Start the engine, and then operate the roof
switch.
SituationWarning messageAction