2021 LEXUS RX350 check engine

1343-3. Adjusting the seats
• The driver’s seat belt has been unfastened.
When any of the following has been
performed, the seat and steering
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.
■Operation of the power easy access sys-
tem
When exiting the vehicle, the power easy
access system may not operate if the seat is
already close to the rearmost position, etc.
■Customization
Some functions can be customized.
(  P.461)
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, outside rear view mirrors
and head-up display (if equipped)
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.121)
The adjusted positions other than the posi-
tion adjusted by lumb ar 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 engine switch to IGNI-
TION ON mode.
Recording a driving position into
memoryWARNING
■Seat adjustme nt 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

1353-3. Adjusting the seats
3
Before driving
3Press 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 fo llowing 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 (only cancels steering
wheel 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 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.
2 Turn the engine switch to IGNI-
TION ON mode.
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
Carry only the key you want to cancel
and then close the driver’s door.
If 2 or more keys are in the vehicle, the
driving position cannot be canceled
properly.
1 Turn the engine switch to IGNI-
TION ON mode.
2 While pressing the “SET” button,
press and hold the door lock switch
(either lock or unlock) until the
buzzer sounds twice.
If it button could not be canceled, the
buzzer sounds continuously for approxi-
mately 3 seconds.
Registering/canceling/recall a
driving position to an electronic
key (memory recall function)
(driver’s side only)

1453-5. 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.432)
●The power windows can be opened using
the wireless remote control.* ( P.99)
*: These settings must be customized at
your Lexus dealer.
■Alarm
The alarm may be triggered if the alarm is
set and a power window is closed using the
door lock linked power window operation
function. ( P.68)
■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.461)
WARNING
Observe the following precautions.
Failing 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.146)
●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.

1473-5. Opening, closing the windows and moon roof
3
Before driving
*: Lightly press either side of the moon roof switch to stop the moon roof partway.
■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
the driver’s 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.432)
●The moon roof can be opened using the
wireless remote control.* ( P.99)
●The alarm may be triggered if the alarm is
set and the moon roof is closed using the
door lock linked moon roof operation
function. ( P.68)
*: These settings must be customized at
your Lexus dealer.
■When the moon roof does not close nor-
mally
Perform the following procedure:
If the moon roof closes but then re-opens
slightly
1 Stop the vehicle.
2 Press and hold the “CLOSE” switch.
*1
The moon roof will close, reopen and pause
for approximately 10 seconds.*2 Then it will close again, tilt up and pause for approxi-
mately 1 second. Finally, it will tilt down,
open and close.
3
Check to make sure that the moon roof
is completely closed and then release
the switch.
If the moon roof tilts down but then tilts
back up
1 Stop the vehicle.
2 Press and hold the “UP” switch
*1 until
the moon roof moves into the tilt up
position and stops.
3 Release the “UP” switch once and then
press and hold the “UP” switch
again.
*1The moon roof will pause for
approximately 10 seco nds in the tilt up
position.
*2 Then it will adjust slightly and
pause for approximately 1 second.
Finally, it will tilt down, open and close.
4 Check to make sure that the moon roof
is completely closed and then release
the switch.
*1: If the switch is rele ased at the incorrect
time, the procedure will have to be per-
formed again from the beginning.
*2: If the switch is released after the above mentioned 10 second pause, automatic
operation will be disabled. In that case,
press and hold the “CLOSE” or “UP”
switch, and the moon roof will tilt up and
pause for approximately 1 second. Then
it will tilt down, open and close. Check
to make sure that the moon roof is com-
pletely closed and then release the
switch.
If the moon roof does not fully close even
after performing the above procedure cor-
rectly, 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.

1483-5. Opening, closing the windows and moon roof
■Customization
Some functions can be customized.
(  P.461)
WARNING
Observe the following precautions.
Failing to do so may cause death or seri-
ous injury.
■Opening the moon roof
●Do not allow any passengers to put
their hands or heads outside the vehi-
cle while it is moving.
●Do not sit on top of the moon roof.
■Opening and closing the moon roof
●The driver is responsible for moon roof
opening and closing operations.
In order to prevent accidental opera-
tion, especially by a child, do not let a
child operate the moon roof. It is possi-
ble for children an d other passengers
to have body parts caught in the moon
roof.
●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 moon roof is being operated.
●When using the wireless remote con-
trol or mechanical key and operating
the moon roof, oper ate the moon roof
after checking to make sure that there
is no possibility of any passenger hav-
ing any of their body parts caught in
the moon roof. Also, do not let a child
operate moon roof by the wireless
remote control or mech anical key. It is
possible for children and other passen-
gers to get caught in the moon roof.
●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 caught just
before the moon roof is fully closed.
Also, the jam protection function is not
designed to operate while the switch is
being pressed. Take care so that your
fingers, etc. do not get caught.

1503-5. Opening, closing the windows and moon roof
Closes the panoramic moon roof
Slide and hold the switch forward.
The panoramic moon roof will fully
close automatically.
■The panoramic moon roof can be oper-
ated when
The engine switch is in IGNITION ON
mode.
■Operating the panoramic moon roof
after turning the engine off
The panoramic moon roof and electronic
sunshade can be operated for approxi-
mately 45 seconds afte r the engine switch
is turned to ACCESSORY mode or turned
off. They cannot, ho wever, be operated
once the driver’s door is opened.
■Jam protection function
If an object is detected between the pan-
oramic moon roof and the frame in the fol-
lowing situations, travel is stopped and the
panoramic moon roof opens slightly:
●The panoramic moon roof is closing or
tilting down.
●The electronic sunshade is closing.
■Door lock linked panoramic moon roof
operation
●The panoramic moon roof can be
opened and closed using the mechanical
key.
* (  P.432)
●The panoramic moon roof can be
opened using the wireless remote con-
trol.
*( P.99)
*: These settings must be customized at
your Lexus dealer.
■Closing both the panoramic moon roof
and electronic sunshade
Slide the switch forward.
The electronic sunshade will close to the
half-open position and pause. The pan-
oramic moon roof will then fully close. Then
the electronic sunshade will fully close.
■When the panoramic moon roof or elec-
tronic sunshade does not close normally
Perform the following procedure:
1 Stop the vehicle.
2 Turn the engine switch to IGNITION
ON mode.
3 Slide and hold the switch or
switch forward. Continue pressing the
switch for approximately 10 seconds
after the panoramic moon roof or elec-
tronic sunshade closes and reopens.
The panoramic moon roof and elec-
tronic sunshade will start to close.
*
4Check that the panoramic moon roof
and electronic sunshade are fully closed
and 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 panoramic moon roof or electronic
sunshade does not fully close even after
performing the above procedure correctly,
have the vehicle inspected by your Lexus
dealer.
■Alarm
The alarm may be triggered if the alarm is
set and the panoramic moon roof is closed
using the door lock linked panoramic moon
roof operation function. ( P.69)
■Panoramic 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 panoramic moon roof open.
■Customization
Some functions can be customized.
(  P.461)

1513-5. Opening, closing the windows and moon roof
3
Before driving
WARNING
Observe the following precautions.
Failing to do so may cause death or seri-
ous injury.
■Opening and closing the electronic
sunshade
●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 electronic sunshade is being
operated.
●Do not let a child operate the elec-
tronic sunshade. Closing the elec-
tronic sunshade on someone can
cause death or serious injury.
■Opening and closing the panoramic
moon roof
●The driver is responsible for pan-
oramic moon roof opening and closing
operations. In order to prevent acci-
dental operation, especially by a child,
do not let a child operate the pan-
oramic moon roof. It is possible for
children and other passengers to have
body parts caught in the panoramic
moon roof.
●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 panoramic moon roof is
being operated.
●When using the wireless remote con-
trol or mechanical key and operating
the panoramic moon roof, operate the
panoramic moon roof after checking
to make sure that there is no possibility
of any passenger ha ving any of their
body parts caught in the panoramic
moon roof. Also, do not let a child
operate panoramic moon roof by the
wireless remote control or mechanical
key. It is possible for children and other
passengers to get caught in the pan-
oramic moon roof.
●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.

1564-1. Before driving
WARNING
●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, but the
power assist to these systems will be
lost. This will make it more difficult to
steer and brake, so you should pull
over and stop the vehicle as soon as it
is safe to do so.
However, in the event of an emer-
gency, such as if it becomes impossible
to stop the vehicle in the normal way:
P.394
●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.178)
●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.
●AWD models: Do not drive the vehicle
off-road.
This is not an AWD vehicle designed
for off-road driving. Proceed with all
due caution if it becomes unavoidable
to drive off-road.
●Do not drive across a river or through
other bodies of water.
This may cause electric/electronic
components to short circuit, damage
the engine or cause other serious
damage to 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 failure, 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.
●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 con-
trol may be affected.
■When shifting the shift lever
●Do not let the vehicle roll backward
while the shift lever is in a driving posi-
tion, or roll forward while the shift lever
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.
●Do not shift the shif t lever 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 lever to R while
the vehicle is moving forward.
Doing so can damage the transmission
and may result in a loss of vehicle con-
trol.