2021 LEXUS RX450h warning

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.

1213-2. Opening, closing and locking the doors
3
Before driving
WARNING
●If the operating conditions of the
power back door (P.117) are no lon-
ger met, a buzzer may sound and the
power back door may stop opening or
closing. The power back door must
then be operated manually. Take extra
care on an incline in this situation, as
the power back door may move sud-
denly.
●On an incline, the power back door
may suddenly shut af ter it opens. Make
sure the power back door is fully open
and secure.
●In the following situations, the power
back door may detect an abnormality
and automatic operation may be
stopped. In this case, the power back
door must then be operated manually.
Take extra care in this situation, as the
stopped power back door may sud-
denly open or close, causing an acci-
dent.
• When the power back door contacts an obstacle
• When the 12-volt battery voltage sud- denly drops, such as when the power
switch is turned to ON mode or the
hybrid system is started during auto-
matic operation
●If a bicycle carrier or similar heavy
object is attached to the power back
door, the power back door may not
operate, causing a malfunction, or the
power back door may suddenly shut
again after being opened, causing
someone’s hands, arms, head or neck
to be caught and in jured. When install-
ing an accessory part to the power
back door, using a genuine Lexus part
is recommended.
■Jam protection function
Observe the following precautions.
Failure to do so may cause death or seri-
ous injury.
●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 caught just
before the power back door fully
closes. Be careful not to get fingers
caught or anything else.
●The jam protection function may not
work depending on the shape of the
object that is caught. Be careful not to
catch fingers or anything else.
■Hands Free Power Back Door (if
equipped)
Observe the following precautions.
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.
●Exhaust gasses cause the exhaust
pipes to become quite hot. When
operating the Hands Free Power Back
Door, be careful not to touch the
exhaust pipe.
●Do not operate the Hands Free Power
Back Door if there is little space under
the rear bumper.

1253-2. Opening, closing and locking the doors
3
Before driving
■Antenna locationAntennas outside the cabin
Antennas inside the cabin
Antenna outside the luggage compart-
ment
■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 operated.)
When starting the hybrid system or
changing power switch modes
The system can be operated when the
electronic key is inside the vehicle.
■Alarms and warning messages
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 mes-
sage is displayed, take appropriate mea-
sures based on the displayed message.
(  P.428)
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
Smart access system with
push-button start
The following operations can be
performed simply by carrying the
electronic key on your person, for
example in your pocket. The driver
should always carry the electronic
key.
 Locks and unlocks the doors
( P.109)
 Locks and unlocks the back door
( P.114)
 Starts and stops the hybrid system
( P.184)
A
B
C
SituationCorrection
procedure
An attempt was made to
lock the vehicle while a
door was open.Close all of the
doors and lock
the doors
again.
A
B

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

1303-2. Opening, closing and locking the doors
WARNING
■Caution regarding interference with
electronic devices
●People with implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibrillators should keep
away from the smart access system
with push-button start antennas.
( P.125)
The radio waves may affect the opera-
tion of such devices. If necessary, the
entry function can be disabled. Ask
your Lexus dealer for details, such as
the frequency of radio waves and tim-
ing of the emitted radio waves. Then,
consult your doctor to see if you
should disable the entry function.
●Users of any electrical medical device
other than implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibrillators should con-
sult the manufacturer of the device for
information about its operation under
the influence of radio waves.
Radio waves could have unexpected
effects on the operation of such medi-
cal devices.
Ask your Lexus dealer for details on dis-
abling the entry function.

1313-3. Adjusting the seats
3
Before driving
3-3.Adjusting the seats
Seat position adjustment switch
Seat cushion (front) angle adjust-
ment switch
Vertical height adjustment switch
Seatback angle adjustment switch
Lumbar support firmness adjust-
ment switch
Lumbar support height adjustment
switch (if equipped)
Seat cushion length adjustment
switch (if equipped)
■Power easy access system
The driver’s seat (on some models) and
steering wheel move in accordance with
power switch mode and the driver’s seat
belt condition. ( P.142)
Front seats
WARNING
■When adjusting the seat position
●Take care when ad justing the seat
position to ensure that other passen-
gers are not injured by the moving
seat.
●Do not put your hands under the seat
or near the moving parts to avoid
injury. Fingers or hands may become
jammed in the se at mechanism.
●Make sure to leave enough space
around the feet so they do not get
stuck.
■Seat adjustment
To reduce the risk of sliding under the lap
belt during a collision, do not recline the
seat more than necessary.
If the seat is too reclined, 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 risk of death or serious
injury in the event of an accident.
Adjustments should not be made while
driving as the seat may unexpectedly
move and cause the driver to lose control
of the vehicle.
Adjustment procedure
A
B
C
D
E
F
G

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.