check engine lexus LC500C 2021 / LEXUS 2021 LC500 CONVERTIBLE (OM11498U) User Guide

1063-2. Opening, closing and locking the doors and trunk
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.104)
●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.105)
■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

1133-3. Adjusting the seats
3
Before driving
When any of the following has been
performed, the driver’s seat and steer-
ing wheel automatically return to their
original positions.
The engine switch has been turned
to ACC or ON.
 The driver’s seat belt has been fas-
tened.
■Operation of the power easy access
system
●When exiting the vehicle, the power easy
access system may not operate if the seat
is already close to the rearmost position,
etc.
●If the seat position is adjusted during the
power easy access sy stem operation, the
automatic operating will stop. (The seat
will change to manual operation.)
●If the seat position is adjusted during or
after the power easy access system oper-
ation when the driver is exiting the vehi-
cle, the power easy access system will not
operate when entering the vehicle.
■Customization
The seat movement amou nt settings of the
power easy access sy stem can be custom-
ized.
(Customizable features: P.367)
1Turn the engine switch to ON. 2
Check that the shift position is in P.
3
Adjust the driver’s seat, steering
wheel, outside rear view mirrors
and head-up display to the desired
positions.
4
While pressing the “SET” button, or
within 3 seconds after the “SET”
button is pressed, press button “1”,
“2” or “3” until the buzzer sounds.
If the selected button has already been
preset, the previously recorded position
will be overwritten.
■Seat positions that can be memorized
(  P.110)
The adjusted positions other than the posi-
tion adjusted by lumbar support switch can
be recorded.
■In order to correctly use the driving
position memory function
If a seat position is already in the furthest
possible position and the seat is operated in
the same direction, the recorded position
may be slightly differen t when it is recalled.
Recording a driving position into
memory
WARNING
■Seat adjustment caution
Take care during seat adjustment so that
the seat does not strike the rear passen-
ger or squeeze your body against the
steering wheel.

1143-3. Adjusting the seats
1Turn the engine switch to ON.
2 Check that the shift position is in P.
3 Press one of the buttons for the
driving position you want to recall
until the buzzer sounds.
■To stop the position recall operation
part-way through
Perform any of the following:
●Press the “SET” button.
●Press button “1”, “2” or “3”.
●Operate any of the seat adjustment
switches (only cancels seat position
recall).
●Operate the tilt and telescopic steering
control switch (only cancels steering
wheel position recall).
●Operate the head-up display position
adjustment switch (if equipped) (only
cancels head-up display position recall).
■Operating the driving position memory
after turning the engine switch off
Recorded seat positions can be activated
up to 180 seconds after the driver’s door is
opened and another 60 seconds after it is
closed again.
■Registering procedure
Record your driving position to button
“1”, “2” or “3” before performing the
following:
Carry only the key you want to regis-
ter, and then close the driver’s door.
If 2 or more keys are in the vehicle, the
driving position cannot be recorded
properly.
1 Turn the engine switch to ON.
2 Check that the shift position is in P.
3 Recall the driving position that you
want to record.
4 While pressing the recalled button,
press and hold the door lock switch
(either lock or unlock) until the
buzzer sounds.
If the button could not be registered, the
buzzer sounds continuously for approxi-
mately 3 seconds.
■Cancelation procedure
1 Carry only the key you want to can-
cel and then close the driver’s door.
If 2 or more keys are in the vehicle, the
Recalling a driving positionRegistering/canceling/recall a
driving position to an electronic
key (including a card key) (mem-
ory recall function)

1153-3. Adjusting the seats
3
Before driving
driving position cannot be canceled prop-
erly.
2Turn the engine switch to ON.
3 Check that the shift position is in P.
4 While pressing the “SET” button,
press and hold the door lock switch
(either lock or unlock) until the
buzzer sounds twice.
If the button could not be canceled, the
buzzer sounds continuously for approxi-
mately 3 seconds.
■Recall procedure
1 Make sure that the doors are
locked before recalling the driving
position. Carry the electronic key
that has been registered to the driv-
ing position, and then unlock and
open the driver’s door using the
smart access system with push-but-
ton start or wireless remote control.
The driving position will move to the
recorded position (not including the steer-
ing wheel and head-up display).
If the driving position is in a position that
has already been recorded, the seat and
outside rear view mirrors will not move.
2Turn the engine switch to ACC or
ON, or fasten a seat belt.
The steering wheel and head-up display
will move to the recorded position.
■Recalling the driving position using the
memory recall function
●Different driving positions can be regis-
tered for each electronic key. Therefore,
the driving position that is recalled may
be different depending on the key being
carried.
●If the passenger’s door is unlocked with
the smart access system with push-but-
ton start, the driving position cannot be
recalled. In this case, press the driving
position button which has been set.
■Customization
The unlock door sett ings of the memory
recall function can be changed.
(Customizable features: P.367)

1243-5. Opening and closing the windows
7Pull and hold the power window switch
in the one-touch closing direction to
close the side windows.
8
Pull and hold the all window control
switch in the one-touch closing direc-
tion again. After the rear quarter win-
dows are completely closed, continue
holding the switch fo r a further 1 second
or more.
If you release the switch while the windows
are moving, start again from the beginning.
If the windows reverse and cannot be fully
closed or opened, have the vehicle
inspected by your Lexus dealer.
■Door lock linked window operation
●The power windows can be opened and
closed using the mechanical key.*
(  P.330)
●The power windows can be opened using
the wireless remote control.* ( P.96)
*: These settings must be customized at
your Lexus dealer.
■Power windows open warning buzzer
The buzzer sounds and “Window Open” is
shown on the multi-information display in
the instrument cluster when the engine
switch is turned off and the driver’s door is
opened with the power windows open.
■Customization
Settings (e.g. linked door lock operation)
can be changed.
(Customizable features: P.367)
WARNING
Observe the following precautions.
Failure to do so may result in death or
serious injury.
■Closing the windows
●The driver is responsible for all the
power window operations, including
the operation for the passengers. In
order to prevent accidental operation,
especially by a child, do not let a child
operate the power windows. It is possi-
ble for children and other passengers
to have body parts caught in the power
window. Also, when riding with a child,
it is recommended to use the window
lock switch. ( P.125)
●Check to make sure that all passen-
gers do not have any part of their body
in a position where it could be caught
when a window is being operated.
●When using the wireless remote con-
trol or mechanical key and operating
the power windows, operate the
power window after checking to make
sure that there is no possibility of any
passenger having any of their body
parts caught in the window. Also do
not let a child operate window by the
wireless remote control or mechanical
key. It is possible for children and other
passengers to get caught in the power
window.
●When exiting the vehicle, turn the
engine switch off, carry the key and
exit the vehicle along with the child.
There may be accidental operation,
due to mischief, etc., that may possibly
lead to an accident.
■Jam protection function
●Never use any part of your body to
intentionally activa te the jam protec-
tion function.
●The jam protection function may not
work if something gets jammed just
before the window is fully closed. Be
careful not to get any part of your body
jammed in the window.
■Catch protection function
●Never use any part of your body or
clothing to intentionally activate the
catch protection function.

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.

1323-6. Opening and closing the soft top roof
The roof switch is
released for a long
period of time while
opening or closing the
soft top roof.“Soft Top Moving Do
Not Forget To Close”
“Soft Top Operation
Not Completed Do
Not Forget To Close”
When the engine switch is in ACC or
OFF
The operation is restricted and the soft top
roof moves slowly.
When starting the engine or turning the
engine switch to ON
The operation is stoppe d. After it stops,
when the roof switch is operated, the soft
top roof moves corresponding the switch
operation.
However, if the soft top roof has been
operated repeatedly in a short period of
time, it may be only closed. ( P.128)
When the engine switch is not operated
Wait for a while until the soft top roof oper-
ation is stopped. After it stops, when the
roof switch is operated, the soft top roof
moves corresponding the switch opera-
tion.
However, if the soft top roof has been
operated repeatedly in a short period of
time, it may be only closed. ( P.128)
SituationWarning messageAction
WARNING
■When opening or closing the soft top
roof
Observe the following.
Failure to do so may result in death or
serious injury.
●Check to make sure that all passen-
gers do not have any part of their body
in a position where it could be caught
when the soft top roof is being oper-
ated. If a part of the body or an object
is likely to be caught, or if the body is
caught, stop the operation immedi-
ately.
●If anyone is in the vi cinity or in the vehi-
cle, make sure they are safe and let
them know that the soft top roof is
about to open or close.
●When the rear seat is occupied, be
careful that the soft top roof does not
hit the passenger.
●Pay extra attention to the operation of
the soft top roof and the safety of the
area around the vehicle while opening
or closing the soft top roof.
●Take extra care to prevent your fin-
gers etc. from being caught in moving
parts.
●Do not operate the soft top roof while
the vehicle is backing up. The driver’s
rearward vision may be blocked, lead-
ing to an accident.
●When the soft top roof starts to move
slowly, be careful no t to be caught in
the soft top roof.

1364-1. Before driving
4-1.Before driving
■Starting the engine
 P.146
■Driving
1 With the brake pedal depressed,
shift the shift position to D.
(P.152)
Check that the shift position indicator
shows D.
2 If the parking brake is in manual
mode, release the parking brake.
(P.157)
3 Gradually release the brake pedal
and gently depress the accelerator
pedal to accelerate the vehicle.
■Stopping
1 With the shift position in D, depress
the brake pedal.
2 If necessary, set the parking brake.
If the vehicle is to be stopped for an
extended period of time, shift the shift posi-
tion to P. ( P.152)
■Parking the vehicle
1 Stop the vehicle completely.
2 If the parking brake is in manual
mode, set the parking brake.
(P.157)
3 Shift the shift position to P.
(P.152)
Check that the shift position indicator
shows P.
4 Press the engine switch to stop the
engine.
5 Slowly release the brake pedal.
6 Lock the door, making sure that
you have the electronic key on your
person.
If parking on a hill, block the wheels as
needed.
■Starting off on a steep uphill
1 Firmly depress the brake pedal and
shift the shift position to D.
The hill-start assist control will be activated.
( P.219)
2 Set the parking brake. ( P.157)
3 Release the brake pedal and gently
depress the accelerator pedal to
accelerate the vehicle.
4 Release the parking brake.
(P.157)
■When parking the vehicle
In order to prevent theft or effect of the
weather on the environment of the vehicle
cabin, close the soft top roof when parking
the vehicle.
■Driving in the rain
●Drive carefully when it is raining, because
visibility will be reduced, the windows
may become fogged-up, and the road
will be slippery.
●Drive carefully when it starts to rain,
because the road surface will be espe-
cially slippery.
●Refrain from high speeds when driving on
an expressway in the rain, because there
may be a layer of wa ter between the tires
and the road surface, preventing the
steering and brakes from operating
properly.
■Engine speed while driving
In the following conditions, the engine
speed may become high while driving. This
Driving the vehicle
The following procedures should be
observed to ensure safe driving:
Driving procedure

1384-1. Before driving
WARNING
■When driving the vehicle
●Do not drive if you are unfamiliar with
the location of the brake and accelera-
tor pedals to avoid depressing the
wrong pedal.
• Accidentally depressing the accelera- tor pedal instead of the brake pedal
will result in sudden acceleration that
may lead to an accident.
• When backing up, you may twist your body around, leading to a difficulty in
operating the pedals. Make sure to
operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle
only slightly. This allows you to depress
the brake and accelerator pedals
properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal
using your left foot may delay
response in an emergency, resulting in
an accident.
●Do not drive the vehicle over or stop
the vehicle near flammable materials.
The exhaust system and exhaust gases
can be extremely hot. These hot parts
may cause a fire if there is any flamma-
ble material nearby.
●During normal driving, do not turn off
the engine. Turning the engine off
while driving will not cause loss of
steering or braking control, however,
power assist to the steering will be lost.
This will make it more difficult to steer
smoothly, so you should pull over and
stop the vehicle as soon as it is safe to
do so.
In the event of an emergency, such as
if it becomes impo ssible to stop the
vehicle in the normal way: P.306
●Use engine braking (downshift) to
maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may
cause the brakes to overheat and lose
effectiveness. ( P.150)
●Do not adjust the positions of the
steering wheel, the seat, or the inside
or outside rear view mirrors while driv-
ing.
Doing so may result in a loss of vehicle
control.
●Always check that all passengers’
arms, heads or other parts of their
body are not outside the vehicle.
●Do not drive in excess of the speed
limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140
km/h) unless your vehicle has high-
speed capability tires. Driving over 85
mph (140 km/h) may result in tire fail-
ure, loss of control and possible injury.
Be sure to consult a tire dealer to
determine whether the tires on your
vehicle are high-speed capability tires
or not before driving at such speeds.
■When driving on slippery road sur-
faces
●Sudden braking, acceleration and
steering may cause tire slippage and
reduce your ability to control the vehi-
cle.
●Sudden acceleration, engine braking
due to shifting, or changes in engine
speed could cause the vehicle to skid,
resulting in an accident.
●After driving through a puddle, lightly
depress the brake pedal to make sure
that the brakes are functioning prop-
erly. Wet brake pads may prevent the
brakes from functioning properly. If
the brakes on only one side are wet
and not functioning properly, steering
control may be affected.
■When shifting the shift position
●Do not let the vehicle roll backward
while a forward driving position is
selected, or roll forw ard while the shift
position is in R.
Doing so may cause the engine to stall
or lead to poor brake and steering
performance, resulting in an accident
or damage to the vehicle.

1394-1. Before driving
4
Driving
WARNING
●Do not shift the shift position to P while
the vehicle is moving.
Doing so can damage the transmission
and may result in a loss of vehicle con-
trol.
●Do not shift the shift position to R while
the vehicle is moving forward.
Doing so can damage the transmission
and may result in a loss of vehicle con-
trol.
●Do not shift the shift position to a driv-
ing position while the vehicle is moving
backward.
Doing so can damage the transmission
and may result in a loss of vehicle con-
trol.
●Changing the shift position to N while
the vehicle is moving will disengage
the engine from the transmission.
Engine braking is not available when N
is selected.
●Be careful not to change the shift posi-
tion with the accelerator pedal
depressed. Changing the shift posi-
tion to any positions other than P or N
may lead to unexpected rapid acceler-
ation of the vehicle that may cause an
accident and result in death or serious
injury.
After changing the shift position, make
sure to confirm the current shift posi-
tion displayed on the shift position indi-
cator inside the meter.
■Brake pad wear
If any of the following situations occurs,
have the brake pads visually checked
and replaced by your Lexus dealer as
soon as possible.
●If the thickness of the brake pads
exceeds the brake pad wear limit
when visually checking all four brake
pads (for the brake pad wear limit,
refer to P.354)
●If “Brake Pad Wear Visit Your Dealer”
is displayed (only the right-side pads
can be detected)
Rotor damage may result if the pads are
not replaced when needed.
■When the vehicle is stopped
●Do not race the engine.
If the shift position is any position other
than P or N, the vehicle may acceler-
ate suddenly and unexpectedly, caus-
ing an accident.
●In order to prevent accidents due to
the vehicle rolling away, always keep
depressing the brake pedal while the
engine is running, and apply the park-
ing brake as necessary.
●If the vehicle is stopped on an incline,
in order to prevent accidents caused
by the vehicle rolling forward or back-
ward, always depress the brake pedal
and securely apply the parking brake
as needed.
●Avoid revving or racing the engine.
Running the engine at high speed
while the vehicle is stopped may cause
the exhaust system to overheat, which
could result in a fire if combustible
material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette light-
ers, spray cans, or soft drink cans in the
vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and plas-
tic material of glasses to deform or
crack.
• Soft drink cans may fracture, causing the contents to spray over the interior
of the vehicle, and may also cause a
short circuit in the vehicle’s electrical
components.