2021 LEXUS RCF check engine

722-1. Instrument cluster
changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
●When “_ _” or “E” is displayed, the system
may be malfunctioning.
Take your vehicle to your Lexus dealer.
■Pop-up display
●In some situations, such as when a switch
operation is performed, a pop-up display
will be temporarily displayed on the
multi-information display.
●Some pop-up displays can be set on/off.
(  P.81)
■Liquid crystal display
Small spots or light spots may appear on the
display. This phenomenon is characteristic
of liquid crystal displays, and there is no
problem continuing to use the display.
■Customization
The meter display can be customized on
the multi-information display. ( P.360)
■Display items
 Odometer
Displays the total distance the vehicle has
been driven.
Trip meter A/trip meter B
Displays the distance the vehicle has been
driven since the meter was last reset. Trip
meters A and B can be used to record and
display different distances independently.
To reset, display the desired trip meter and
press and hold the odometer/trip meter
and trip meter reset button.
■Changing the display
Each time the “ODO TRIP” switch is
pressed, the displayed item will be
changed. When the trip meter is dis-
played, pressing and holding the switch
WARNING
■The information display at low tem-
peratures
Allow the interior of the vehicle to warm
up before using the liquid crystal infor-
mation display. At extremely low tem-
peratures, the in formation display
monitor may respond slowly, and display
changes may be delayed.
For example, there is a lag between the
driver’s shifting and the new gear number
appearing on the display. This lag could
cause the driver to downshift again,
causing rapid and excessive engine brak-
ing and possibly an accident resulting in
death or injury.
NOTICE
■To prevent damage to the engine and
its components
●Do not let the indicator of the tachom-
eter enter the red zone, as it rep-
resents the engine speed range which
exceeds the maximum safe engine
speed.
●In the following situations, the engine
may be overheating. In this case,
immediately stop the vehicle in a safe
place, and check the engine after it has
cooled completely. ( P.337)
• The engine coolant temperature gauge indicator ( ) is in the red
zone and flashing.
• The engine oil temperature gauge indicator ( ) is in the red zone and
flashing.
Odometer and trip meter dis-
play

923-2. Opening, closing and locking the doors and trunk
3-2.Opening, closing and locking the doors and trunk
■Smart access system with
push-button start
Carry the electronic key to enable this
function.
1 Grip the driver’s door handle to
unlock the door. Grip the passen-
ger’s door handle to unlock both
side doors.
*
Make sure to touch the sensor on the back
of the handle.
The doors cannot be unlocked for 3 sec-
onds after the doors are locked.
*: The door unlock settings can be
changed.
2 Touch the lock sensor (indentation
on the side of the door handle) to
lock the doors.
Check that the door is securely locked.
■Wireless remote control
1 Locks both side doors
Check that the door is securely locked.
2Unlocks both side doors
Pressing the button unlocks the driver’s
door. Pressing the button again within 5
seconds unlocks the other door.
Press and hold to open the windows and
moon roof (if equipped).
*
*
: This setting must be customized at your Lexus dealer.
■Side window open/close function linked
to door operation
When a door is opened, its window opens
slightly. When a door is closed, its window
closes completely.
■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 pre ssing 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 .)
Doors
Unlocking and locking the doors
from the outside

973-2. Opening, closing and locking the doors and trunk
3
Before driving
■Wireless remote control
Press and hold the switch.
A buzzer sounds.
■Trunk grip
Using the trunk grip, lower the trunk
without applying force to the side and
push the trunk down from the outside
to close it.
■Trunk light
●The trunk light turns on when the trunk is
opened.
●If the trunk light is left on when the engine
switch is turned off, the light will go off automatically after 20 minutes.
■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 trun
k 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 doors to lock when the
trunk 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.
■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 lid upward.
The lever will continue to glow for some
time after the trunk lid is closed.
■Using the mechanical key
The trunk can be also opened using the
mechanical key. ( P.332)

1013-2. Opening, closing and locking the doors and trunk
3
Before driving
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.)
●Touching the door lock or unlock sensor
while wearing gloves may prevent lock or
unlock operation.
●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.100)
●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.
●The lock sensor may not work properly if
it comes into contact with ice, snow, mud,
etc. Clean the lock sensor and attempt to
operate it again.
●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 electr onic 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 pre-
vention function may not operate.)
●Do not leave the electr onic key inside the
trunk.
The key confinement prevention function
may not operate, depending on the loca-
tion of the key (close to a spare tire [if
equipped], the inside edge of the trunk),
conditions (inside a metal bag, close to
metallic objects) an d the radio waves in
the surrounding area. ( P.98)
■If the smart access system with
push-button start does not operate
properly
●Locking and unloc king the doors and
opening the trunk: P.332
●Starting the engine:  P.333
■Customization
Some functions can be customized.
(  P.360)

1053-3. Adjusting the seats
3
Before driving
*:If equipped
The seat and steering wheel* are auto-
matically adjusted to allow the driver to
enter and exit the vehicle easily.
When all of the following have been
performed, the driver’s seat and steer-
ing wheel
* are automatically adjusted
to a position that allows driver to enter
and exit the vehicle easily.
 The shift lever has been shifted to P.
 The engine switch has been turned
off.
 The driver’s seat belt has been
unfastened.
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 ACCESSORY mode or IGNI-
TION ON mode.
 The driver’s seat belt has been fas-
tened.
*:Power type
■Operation of the power easy access sys-
tem
When exiting the vehicle, the power easy
access system may not op erate if the seat is
already close to the rear position, etc.
■Customization
Some functions can be customized.
(  P.360)
1 Check that the shift lever is in P.
2 Turn the engine switch to IGNI-
TION ON mode.
3 Adjust the driver’s seat, steering
wheel, and outside rear view mir-
rors 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
Power easy access sys-
tem/driving position mem-
ory
*/memory recall function*
This feature auto matically adjusts
the driver’s seat, steering wheel
and outside rear view mirrors to
make entering and exiting the vehi-
cle easier or to suit your prefer-
ences.
Power easy access system
Recording a driving position into
memory (vehicles with driving
position memory)

1063-3. Adjusting the seats
will be overwritten.
1Check that the shift lever is in P.
2 Turn the engine switch to IGNI-
TION ON mode.
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 (onl y cancels steering
wheel position recall).
■Seat positions that can be memorized
(  P.103)
The adjusted positions other than the posi-
tion adjusted by lumb ar support switch can
be recorded.
■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.
■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.
■Registering procedure
Record your driving position to button
“1”, “2” or “3” before performing the
following:
Carry only the key yo u want to register,
and then close the driver’s door.
If 2 or more keys are in the vehicle, the
driving position cannot be recorded
properly.
1 Check that the shift lever is in P.
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.
Recalling a driving position
(vehicles with driving position
memory)
Registering/canceling/recall a
driving position to an electronic
key (including a card key) (mem-
ory recall function) (vehicles
with memory recall function)

1133-5. Opening, closing the windows and moon roof
3
Before driving
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.
■Door lock linked window operation
●The power windows can be opened and
closed using the mechanical key.*
(  P.333)
●The power windows can be opened using
the wireless remote control.* ( P.92)
*: These settings must be customized at
your Lexus dealer.
■Power windows open warning buzzer
A buzzer sounds and a message 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
Some functions can be customized.
(  P.360)
This function can be used to prevent
children from accidentally opening or
closing a passenger window.
Press the switch.
The indicator will come on and the pas-
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 an d 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.113)
●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.
●The catch protection function may not
work if something gets caught just
before the window is fully opened. Be
careful not to get any part of your body
or clothing caught in the window.
Preventing accidental operation
(window lock switch)
A

1153-5. Opening, closing the windows and moon roof
3
Before driving
■The moon roof can be operated when
The engine switch is in IGNITION ON
mode.
■Operating the moon roof after turning
the engine off
The moon roof can be operated for approx-
imately 45 seconds after the engine switch
is turned to ACCESSORY mode or turned
off. It cannot, however, be operated once
either door is opened.
■Jam protection function
If an object is detected between the moon
roof and the frame while the moon roof is
closing or tilting down, travel is stopped and
the moon roof opens slightly.
■Sunshade
The sunshade can be opened and closed
manually. However, the sunshade will open
automatically when the moon roof is
opened.
■Door lock linked moon roof operation
●The moon roof can be opened and
closed using the mechanical key.*
(  P.333)
●The moon roof can be opened using the
wireless remote control.* ( P.90)*: These settings must be customized at
your Lexus dealer.
■If the moon roof does not close normally
Perform the following procedure:
1 Stop the vehicle.
2 Press and hold the “CLOSE” switch.
*
The moon roof will close, reopen and pause
for approximately 10 se conds. Then it will
close again and stop at the completely
closed position.
3 Check to make sure that the moon roof
is completely closed and then release
the switch.
*: If the switch is released at the incorrect
time, the procedure will have to be per-
formed again from the beginning.
If the moon roof does not fully close even
after performing the above procedure cor- rectly, have the vehicle inspected by your
Lexus dealer.
■If the moon roof does not move normally
If the moon roof does not open or close
normally or the automatic opening function
does not operate, perform the following ini-
tialization procedure.
1 Turn the engine switch to IGNITION
ON mode.
2 Operate the moon roof.
Depending on the kind of malfunction per-
form either of the following:
If the moon roof does not open when the
“OPEN” switch is pressed
3 Press and hold the “DOWN” switch or
“CLOSE” switch until the moon roof is
completely closed.
The moon roof will open and close a few
times before it closes completely.
4 Confirm that the moon roof has com-
pletely stopped and release the switch.
If the moon roof does not open com-
pletely automatically even though it tilts
up and opens while the “OPEN” switch is
being pressed and held
3 Press and hold the “O PEN” switch until
the moon roof opens completely.
4 Press and hold th e “CLOSE” switch
until the moon roof closes completely.
5 Press and hold the “U P” switch until the
moon roof tilts up and stops.
6 Press and hold the “DOWN” switch
until the moon roof tilts down and stops
at the completely closed position.
If you release the switch while the moon
roof is moving, perform the procedure
again from the beginning.
If, after performing the above procedures
correctly, the moon roof still does not open
or close normally or the automatic opening
function does not operate, have the vehicle
inspected by your Lexus dealer.
■Moon roof open warning buzzer
A buzzer sounds and a message is shown
on the multi-informat ion display in the
instrument cluster when the engine switch
is turned off and the driver’s door is opened
with the moon roof open.