2021 Lexus LC500C engine

902-1. Instrument cluster
Display the vehicle information on the
side display (P.229), and then select
or to display the desired
screen.
■Trip information (type A)
Displays the average fuel consumption
for the past 10 minutes in 1 minute
intervals, as well as the cruising range.
The image is an example only, and may
vary slightly from actual conditions.
Use the displayed average fuel consump-
tion as a reference.
■Trip information (type B)
Displays the cruising range, latest fuel
consumption and the amount of time
elapsed since the engine was started.
The image is an example only, and may
vary slightly from actual conditions.
Use the displayed average fuel consump- tion as a reference.
■History
Displays the average fuel consump-
tion, last average fuel consumption and
highest fuel consumption.
The image is an example only, and may
vary slightly from actual conditions.
Use the displayed average fuel consump-
tion as a reference.
Using the side display

923-1. Key information
3-1.Key information
The following keys are provided with
the vehicle.
Electronic keys
• Operating the smart access system with push-button start ( P.103)
• Operating the wireless remote control function
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart access system with
push-button start ( P.103)
■Card key (if equipped)
●The card key is not waterproof.
●The mechanical key that is stored inside
the card key should be used only if a
problem arises, such as when the card key does not operate properly.
●If the battery cover is not installed and the
battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive terminal
facing the Lexus emblem.
■When riding in an aircraft
When bringing an electronic key onto an
aircraft, make sure you do not press any
buttons on the electronic key while inside
the aircraft cabin. If you are carrying an
electronic key in your bag etc., ensure that
the buttons are not likely to be pressed
accidentally. Pressing a button may cause
the electronic key to emit radio waves that
could interfere with the operation of the air-
craft.
■Electronic key battery depletion
●The standard battery life is 1 to 2 years.
(The card key battery life is from one year
to one year and a half.)
●If the battery becomes low, an alarm will
sound in the cabin when the engine is
stopped.
●Electronic keys that will not be used for
long periods of time can be set to the bat-
tery-saving mode in advance. ( P.105)
●As the electronic key always receives
radio waves, the battery will become
depleted even if the electronic key is not
used. The following symptoms indicate
that the electronic key battery may be
depleted. Replace the battery when nec-
essary. ( P.297)
• The smart access system with push-but- ton start or the wireless remote control
does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
You can replace the battery by yourself
Keys
Key types
A
B
C
D

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.

983-2. Opening, closing and locking the doors and trunk
using the smart access system with push-
button start or wireless remote control.
Lock or unlock the doors using the
mechanical key. (P.330)
■Customization
Settings (e.g. unlocking function using a
key) can be changed.
(Customizable features: P.367)■Door lock switches
1
Locks both side doors
The indicator comes on.
2Unlocks both side doors
The indicator turns off.
■Inside door handles
Pull the inside door handle to unlock
the door.
The door lock indicator turns off.
The doors can be opened by pulling the
inside door handle even if the door lock
indicator illuminates.
■Door lock indicator
The door lock indicator turns on when the
door is locked. If the door lock indicator illu-
minates for more than 30 seconds while
the engine switch is off, the door lock indi-
cator will automatically turn off.
WARNING
■To prevent an accident
Observe the following precautions while
driving the vehicle.
Failure to do so may result in a door
opening and an occupant being thrown
out of the vehicle, re sulting in death or
serious injury.
●Ensure that both side doors are prop-
erly closed and locked.
●Do not pull the inside handle of the
doors while driving.
The doors may be opened even if they
are locked.
■Side window open/close function
linked to door operation
Do not hold the upper edge of the side
window when you close the door. Other-
wise, your fingers or hand may be caught
in the window.
■When entering and exiting the vehi-
cle
Do not step on the scuff plate. Slipping
on the surface may result in injury.
Unlocking and locking the doors
from the inside
A
A
A
A

993-2. Opening, closing and locking the doors and trunk
3
Before driving
■If a symbol indicating one or both side
doors open is shown on the multi-infor-
mation display
The hood, one or both side of the doors, or
trunk are not fully closed. If the vehicle
reaches a speed of 3 mph (5 km/h), the
master warning light flashes and a buzzer
sounds to indicate that the door(s) are not
fully closed. Make sure to close hood, both
side doors and trunk.
■Customization
The time elapsed before the door lock indi-
cator turns off can be changed.
(Customizable features:  P.367)
The following functions can be set or
canceled:
For instructions on customizing, refer to
P.367.
Automatic door locking and
unlocking systems
FunctionOperation
Speed linked
door locking
function
Both side doors are
automatically locked
when vehicle speed is
approximately 12 mph
(20 km/h) or higher.
Shift position
linked door lock-
ing function
Both side doors are
automatically locked
when the shift position
is shifted to a position
other than P.
Shift position
linked door
unlocking func-
tionBoth side doors are
automatically unlocked
when the shift position
is shifted to P.
Driver’s door
linked door
unlocking func-
tion
Both side doors are
automatically unlocked
when driver’s door is
opened within approxi-
mately 45 seconds
after turning the engine
switch off.
FunctionOperation

1033-2. Opening, closing and locking the doors and trunk
3
Before driving
without applying force to the side and
push the trunk down from the outside
to close it.
The trunk opener switch can be tem-
porarily disabled to protect luggage
stored in the trunk against theft.
Turn the trunk opener main switch in
the glove box off to disable the trunk
opener.
On
Off
When the trunk opener main switch is off,
the trunk lid cannot be opened even with
the wireless remote control or entry func-
tion.
■When leaving a key to the vehicle with a
parking attendant
 P.95
■Antenna location
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the trunk
Antenna outside the trunk
Protecting luggage against theft
A
B
Smart access system with
push-button start
The following operations can be
performed simply by carrying the
electronic key (including the card
key) on your person, for example in
your pocket. The driver should
always carry the electronic key.
 Locks and unlocks the doors
( P.96)
 Opens the trunk ( P.101)
 Starts the engine ( P.146)
A
B
C
D

1043-2. Opening, closing and locking the doors and trunk
■Effective range (areas within which the
electronic key is detected)
When locking or unlocking the doors
The system can be operated when the
electronic key is within about 2.3 ft. (0.7
m) of an outside door handle. (Only the
doors detecting the key can be oper-
ated.)
When opening the trunk
The system can be operated when the
electronic key is within about 2.3 ft. (0.7
m) of the trunk release button.
When starting the engine or changing
engine switch modes
The system can be operated when the
electronic key is inside the vehicle.
■If an alarm sounds or a warning message
is displayed
An alarm sounds and warning messages
are displayed on the multi-information dis-
play to protect against unexpected acci-
dents or theft of the vehicle resulting from
erroneous operation. When a warning
message is displayed, take appropriate
measures based on the displayed message.
When only an alarm sounds, circumstances
and correction procedures are as follows.
●When an exterior alarm sounds once for
5 seconds
●When an interior alarm sounds continu-
ously
■If “Key Detected in Vehicle” is shown on
the multi-information display
An attempt was made to lock the doors
using the smart access system with push-
button start while the electronic key was still
inside the vehicle. Retrieve the electronic
key from the vehicle and lock the doors
again.
■Battery-saving function
The battery-saving function will be acti-
vated in order to prevent the electronic key
battery and the battery from being dis-
A
B
C
SituationCorrection proce- dure
The trunk was
closed while the
electronic key was
still inside the trunk
and both side doors
were locked.
Retrieve the elec-
tronic key from the
trunk and close the
trunk lid.
An attempt was
made to lock the
vehicle while a door
was open.Close both side
doors and lock the
doors again.
SituationCorrection proce-dure
The engine switch
was turned to ACC
while the driver’s
door was open (or
the driver’s door
was opened while
the engine switch
was in ACC).
Turn the engine
switch off and close
the driver’s door.
The engine switch
was turned off while
the driver’s door
was open.
Close the driver’s
door.

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