2021 LEXUS RX450h warning light

872-1. Instrument cluster
2
Vehicle status information and indicators
■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.
 Distance until next engine oil
change
Displays the distance the vehicle can be
driven until an oil change is necessary.
■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
will reset the trip meter.
■Pop-up display
Distance until next engine oil change
Displays the distance until the next engine
oil change. This display will be displayed in
the following situations:
 When the power switch is turned to
ON mode.
 When a warning message indicating
that oil maintenance should be per-
formed soon or is required is dis-
played.
The brightness of the instrument panel
lights can be adjusted.
If the brightness is adjusted when the sur-
roundings are bright and the tail lights are
on (day mode bright ness adjustment), the
brightness level of night mode will be
adjusted at the same time.
WARNING
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 needle of the
tachometer enter the red zone, which
indicates the maximum engine speed.
●The engine may be overheating if the
engine coolant temperature gauge is
in the red zone (H). In this case, imme-
diately stop the vehicle in a safe place,
and check the engine after it has
cooled completely. ( P.454)
Odometer and trip meter dis-
play
Changing the instrument panel
light brightness

882-1. Instrument cluster
1Darker
2 Brighter
■Brightness of the meters (day mode and
night mode)
The brightness of the meters is changed
between day mode and night mode.
●Day mode: When the tail lights are off or
when the tail lights are on but the sur-
rounding area is bright
●Night mode: When the tail lights are on
and the surrounding area is dark
■Display
Except F SPORT models
By selecting menu icons on the
multi-information display, a variety of
driving-related information can be dis-
played. The multi-information display
can also be used to change display set-
tings and other vehicle settings.
Warning or suggestion/advice pop-up
displays are also displayed in certain
situations.
F SPORT models
By selecting menu icons on the
multi-information display, a variety of
driving-related information can be dis-
played. The multi-information display
can also be used to change display set-
tings and other vehicle settings.
Warning or suggestion/advice pop-up
displays are also displayed in certain
situations.
Multi-information display
Display and menu icons

1123-2. Opening, closing and locking the doors
When the door is unlocked, the inside lock
button will pop up.
■Locking the doors from the outside with-
out a key
1 Push down the inside lock button.
2 Close the door.
The door cannot be locked if the power
switch is in ACCESSORY or ON mode, or
the electronic key is le ft inside the vehicle.
However, the key may not be detected cor-
rectly and the door may be locked.
■Open door warning buzzer
If the vehicle speed reaches 3 mph (5
km/h), the master warning light flashes and
a buzzer sounds to indicate that door(s) or
the hood in not fully closed.
The open door(s) or h ood is displayed on
the multi-information display.
The door cannot be opened from
inside the vehicle when the lock is set.
1 Unlock
2 Lock
These locks can be set to prevent children
from opening the rear doors. Push down
on each rear door switch to lock both rear
doors.
The following functions can be set or
canceled:
For instructions on customizing, refer to
P.480.
Rear door child-protector lock
Automatic door locking and
unlocking systems
FunctionOperation
Speed linked
door locking
function
All doors are automati-
cally locked when vehi-
cle speed is
approximately 12 mph
(20 km/h) or higher.
Shift position
linked door lock-
ing functionAll doors are automati-
cally locked when shift-
ing the shift lever out of
P.
Shift position
linked door
unlocking func-
tionAll doors are automati-
cally unlocked when
shifting the shift lever
to P.
Driver’s door
linked door
unlocking func-
tionAll doors are automati-
cally unlocked when
driver’s door is
opened.

1143-2. Opening, closing and locking the doors
■Smart access system with
push-button start
Carry the electronic key to enable this
function. 1
Locks all the doors
Check that the door is securely locked.
2Unlocks all the doors
The doors cannot be unlocked for 3 sec-
onds after the doors are locked.
■Wireless remote control
 P.107
■Door lock switch
 P.111
■Opening/closing the power back
door using the wireless remote
control
Press and hold the switch for approxi-
mately 1 second.
The power back door can be operated
whether it is locked
* or unlocked.
Pressing the switch while the power back
door is opening/closing will stop the oper-
ation.
Pressing and holding the switch again for
approximately 1 second will operate the
power back door in the opposite direction.
WARNING
●When closing the power back door,
take extra care to prevent your fingers,
etc., from being caught.
●When closing the power back door,
make sure to press it lightly on its outer
surface. If the back d oor handle is used
to fully close the power back door, it
may result in hands or arms being
caught.
●Do not pull on the back door spindle
(P.122) to close the power back
door, and do not hang on the back
door spindle.
Doing so may cause hands to be caught
or the back door spindle to break, caus-
ing an accident.
●If a bicycle carrier or similar heavy
object is attached to the power back
door, it may suddenly shut again after
being opened, causing someone’s
hands, arms, head or neck to be
caught and injured. When installing an
accessory part to the power back
door, using a genuine Lexus part is
recommended.
Unlocking and locking the
power back door from the out-
side
Unlocking and locking the
power back door from the inside
Opening/closing the power back
door

1203-2. Opening, closing and locking the doors
■If the power back door opener is inoper-
ative
The power back door can be unlocked from
the inside
1 Remove the cover.
To protect the cover, place a rag between
the flathead screwdriver and cover as
shown in the illustration.
2 Move the lever.
■Customization
Some functions can be customized.
(  P.480)
WARNING
■Back door closer
●In the event that the power back door
is left slightly open, the back door
closer will automatically close it to the
fully closed position. It takes several
seconds before the back door closer
begins to operate. Be careful not to get
fingers caught or anything else in the
power back door, as this may cause
bone fractures or other serious inju-
ries.
●Use caution when using the back door
closer as it still operates when the
power back door system is disabled.
■Power back door
Observe the following precautions when
operating the power back door.
Failure to do so may cause death or seri-
ous injury.
●Check the safety of the surrounding
area to make sure there are no obsta-
cles or anything that could cause any
of your belongings to get caught.
●If anyone is in the vicinity, make sure
they are safe and let them know that
the power back door is about to open
or close.
●If the power back door system is dis-
abled while the powe r back door is
operating, the power back door will
stop operating. The power back door
must then be operated manually. Take
extra care in this situation, as the
power back door may open or close
suddenly.

1283-2. Opening, closing and locking the doors
detection area, it may take slightly longer
to unlock the doors after the door handle
is gripped.
●Fingernails may scrape against the door
during operation of the door handle. Be
careful not to injure fingernails or dam-
age the surface of the door.
■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 syst em 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.126)
■To operate the system properly
Make sure to carry the electronic key when
operating the system. Do not get the elec-
tronic key too close to the vehicle when
operating the system from the outside of the
vehicle.
Depending on the position and holding
condition of the electronic 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 preven-
tion may not operate.)
■If the smart access system with
push-button start does not operate
properly
●If the doors cannot be locked or unlocked
and the back door 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 back door ( P.114) 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.447) However, if the mechanical
key is used while the al arm system is set, the
warning will sound. ( P.75)
●If the hybrid system cannot be started,
refer to  P.448
■Customization
Some functions can be customized.
(  P.480)
■If the smart access system with
push-button start has been deactivated
in a customized setting
●Locking and unlockin g the doors: Use
the wireless remote control or mechani-
cal key. ( P.109, 114, 447)
●Starting the hybrid system and changing
power switch modes: P.448
●Stopping the hybrid system: P.186

1323-3. Adjusting the seats
Rear seats
WARNING
■When a rear seatback is folded
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Do not fold down the rear seatbacks
while driving.
●Stop the vehicle on level ground, apply
the parking brake and shift the shift
lever to P.
●Do not allow anyone to sit on a folded
rear seatback or in the luggage com-
partment while driving.
●Do not allow children to enter the lug-
gage compartment.
■When operating the rear seatback
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Make sure that passengers are clear of
the rear seatback before operating it.
●To prevent hands and other body parts
from being caught, keep them away
from the gaps in the seats and the mov-
ing parts of the seat s when operating a
rear seatback.
●Power seat: Do not let children oper-
ate the rear seatback. Other passen-
gers may get caught in the seat.
●Power seat: Make sure that all passen-
gers are clear of a seat before folding
it. Do not let passeng ers sit in the seat
while it is being folded.
■Seat adjustment
Second-row seats: To reduce the risk of
sliding under the lap belt during a colli-
sion, do not recline the seat more than
necessary.
If the seat is reclin ed excessively, the lap
belt may slide past the hips and apply
restraint forces directly to the abdomen,
or your neck may contact the shoulder
belt, increasing the ri sk of death or seri-
ous injury in the event of an accident.
■After adjusting the rear seats
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Make sure that the rear seatback is
securely locked in position by lightly
pushing it back and forth.
●Check that the seat belts are not
twisted or caught between or behind
in the rear seatback.
●Arrange the seat belts in the proper
positions for ready use.
■Jam protection function (power seat)
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Never use any part of your body to
intentionally activa te the jam protec-
tion function.
●The jam protection function may not
operate if something is caught just
before the fully folded position. Be
careful so that finger s, etc. do not get
caught.
●The jam protection function may not
operate depending on the shape or
position of the obstruction. Be careful
so that fingers, etc. do not get caught.

1433-3. Adjusting the seats
3
Before driving
will be overwritten.
■Seat positions that can be memorized
( P.131)
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.
1Check that the shift lever is in P.
2 Turn the power switch to 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 operations:
●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).
■Operating the driving position memory
after turning the power 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 yo u want to register,
and then close the driver’s door.
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
Registering/canceling/recall a
driving position to an electronic
key (memory recall function)
(driver’s side only)