lock LEXUS LS500 2021 Service Manual

1163-2. Opening, closing and locking the doors and trunk
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.)
●Touching the door lock sensor while
wearing gloves may delay or prevent lock
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.115)
●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 all the 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 approach to the effective
range or door handle may prevent the
doors from being unlocked. In this case,
return the door handle to the original
position and check that the doors unlock
before pulling the door handle again.
●If there is another electronic key in the
detection area, it may take slightly longer
to unlock the doors after the door handle
is gripped.
■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.115)
■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.

1173-2. Opening, closing and locking the doors and trunk
3
Before driving
The key confinement prevention function
may not operate, depending on the loca-
tion of the key (the inside edge of the
trunk), conditions (inside a metal bag,
close to metallic objects) and the radio
waves in the surrounding area. ( P.111)
■If the smart access system with
push-button start does not operate
properly
●Locking and unlocking the doors and
trunk: P.442
●Starting the engine:  P.443
■Customization
Some functions can be customized.
(  P.476)
■If the smart access system with
push-button start has been deactivated
in a customized setting
●Locking and unloc king the doors and
opening the trunk:
Use the wireless remote control or
mechanical key. ( P.102, 109, 442)
●Starting the engine and changing engine
switch modes: P.443
●Stopping the engine: P.175
■Certification for the smart access system with push-button start

1183-2. Opening, closing and locking the doors and trunk

1193-2. Opening, closing and locking the doors and trunk
3
Before driving

1203-2. Opening, closing and locking the doors and trunk
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.113)
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.

1263-3. Adjusting the seats
senger’s seat seatback*
The seatback will move while a button is
touched and held.
*: Vehicles with a foldable head restraint
■Operating the front passenger’s seat
from the rear seat
●In the following situations, the front pas-
senger’s seat cannot be operated using
the Rear Multi Operation Panel:
• The engine switch is in ACCESSORY
mode or off.
*
• The rear seat belt is not fastened and weight is not detected on the rear seat.
Once weight is detect ed on the seat, the
seat will be judged as occupied until a rear
door is opened then closed or the engine
switch is turned off and the doors are
locked.
• The weight of an occupant or heavy object, etc. is detected on the front pas-
senger’s seat.
Once weight is detect ed on the seat, the
seat will be judged as occupied until the
front passenger’s door is opened then
closed or the engine switch is turned off.
• The front passenger’s seat belt is fas-
tened.
• The front passenger’s door is open. (The
front seat will not move forward.)
*: Vehicles with foldab le head restraint:
Even when the engine switch is in
ACCESSORY mode or off, the front
passenger seat position and seatback
angle can be adjusted.
●If the rear armrest is stowed while the
seat position is being adjusted, the opera-
tion will stop.
■Canceling an operation
To cancel an operation, press and hold the
button of the Rear Multi Opera-
tion Panel or press it 3 times in quick suc-
cession.
■When the front passenger’s seat is
folded forward
 P.125
Pneumatic chambers built into the
front seat apply pressure to the occu-
pant’s body at different modes and
intensities.
1 Press the seat switch.
2 Using the Remote Touch pad,
select “Driver Se at Refresh” or
“Passenger Seat Refresh”.
3 Select the desired mode.
 “Centripetal”
Applies pressure sequentially from the
front of the seat cushion to top of the seat-
back
“Centrifugal”
Applies pressure sequentially from the top
of the seatback to the front of the seat
cushion
“Upper Body”
Applies pressure sequentially from the bot-
tom to the top of the seatback
“Lower Body”
Applies pressure sequentially from the
front to the back of the seat cushion
Front seat refresh system (if
equipped)

1293-3. Adjusting the seats
3
Before driving
met, the preset buttons will be grayed out.
/ : Moves the rear seat
to the upright position (Business
Mode)
/ : Moves the rear seat
with an ottoman to a slightly reclined
position (Entertainment Mode) (if
equipped)
Vehicles without a rear seat entertainment
system: Moves the front passenger’s seat
forward.
Vehicles with a rear seat entertainment
system: Moves the front passenger’s seat
and rear display to allow the rear display to
be comfortably viewed.
: Moves the rear seat with an
ottoman to a deeply reclined position
(Relaxation Mode) (if equipped)
Moves the front passen ger’s seat forward
and folds the seatback and head restraint
forward.
To stop the front passenger seat while it is
moving, touch “STOP”.
■Manual operation
1 Display the home screen on the
Rear Multi Operation Panel
(P.318) and then touch “Seat”.
2 Touch “Left” or “Right”. 3
Touch the button for the desired
adjustment.
Select the part you wish to adjust.
Adjust the position of the selected
part.
The part will move while a button is
touched.
■Adjustment of the rear seat
●When a rear seat is close to a front seat,
the operation of the rear seat may be
restricted.
●If the rear armrest is stowed while the
seat position is bein g adjusted, the opera-
tion will stop.
■Operating conditions of Business Mode
When the rear seat belt is not fastened and
weight is not detected on the rear seat,
Business Mode cannot be selected.
Once weight is detected on the seat, the
seat will be judged as occupied until a rear
door is opened then closed or the engine
switch is turned off and the doors are
locked.
■The rear seat with an ottoman cannot be
moved to Entertainment Mode/Relax-
ation Mode when (if equipped)
In the following situations, Entertainment
Mode or Relaxation Mode cannot be
selected:
●The engine switch is in ACCESSORY
mode or off.
●The rear seat belt is not fastened and
weight is not detected on the rear seat.
A
B

1303-3. Adjusting the seats
Once weight is detected on the seat, the
seat will be judged as occupied until a rear
door is opened then closed or the engine
switch is turned off and the doors are
locked.
●The weight of an occupant or heavy
object, etc. is detected on the front pas-
senger’s seat.
Once weight is detect ed on the seat, the
seat will be judged as occupied until the
front passenger’s door is opened then
closed or the engine switch is turned off.
●The front passenger’s seat belt is fas-
tened.
●The front passenger’s door is open.
■When the front passenger’s seat is
folded forward
 P.125
■Automatic angle adjustment of the rear
displays (if equipped)
When a seat is adjusted, the angle of the
rear display will be adjusted automatically
to maintain an optima l viewing angle for the
rear display from the rear seat.
■Operation after the engine switch is
turned off
After a certain time el apses after the engine
switch is turned off, the following parts of
the rear seats will move to their neutral
positions.
●Shoulder bolster
●Lumbar/pelvic support
■Canceling an operation
To cancel an operation, press and hold the
button of the Rear Multi Opera-
tion Panel or press it 3 times in quick suc-
cession.
■Pre-collision seatbacks for the passen-
ger seats
 P.216, 228
■Customization
Some functions can be customized.
(  P.476)
1 Press the seat switch.
2 Select “Return” of “Rear”.
The rear seat will move to the upright posi-
tion.
■Operation of the rear seats from the
front seats
In the following situations, the rear seats
cannot be operated from the front seats.
●When the armrest is stowed and weight
of an occupant, heavy object, etc. is
detected on a rear seat
Once weight is detected on the seat, the
seat will be judged as occupied until a rear
door is opened then closed or the engine
switch is turned off and the doors are
locked.
●When the armrest is stowed and a rear
seat belt is fastened.
Returning the rear seat from the
front seats
WARNING
■When returning the rear seats to the
neutral position
To avoid injuring th e rear passengers,
wait until they have gotten out of the
vehicle before operating the switch.

1313-3. Adjusting the seats
3
Before driving
The rear seat relaxation system utilizes
pneumatic chambers and dedicated
heaters, and applies pressure to the
occupant’s body at different modes
and intensities.
To display the rear seat relaxation sys-
tem screen, display the home screen
on the Rear Multi Operation Panel
(  P.318) and then touch “Relaxation”.
Touch to select the desired rear
seat.
Touch to select the desired mode.
When a button is touched, operation will
begin.
Touch to adjust the intensity.
The intensity can be adjusted in 5 steps.
Touch to turn the spot heaters
on/off.
Touch to stop the operation.
If a seat is not occupi ed, do not operate the
rear seat relaxation system for that seat.
■Relaxation system
●Operating conditions
• The engine switch is in IGNITION ON mode.
• The temperature in the cabin is not extremely high. • The weight of an occupant is detected on
the rear seat or the rear seat belt is fas-
tened.
Once weight is detected on the seat, the
seat will be judged as occupied until a rear
door is opened then closed or the engine
switch is turned off and the doors are
locked.
●Automatic stop function
• The operation will be canceled automati-
cally after approximately 15 minutes.
• If the door for a seat that the relaxation
system is currently be ing used is opened,
the relaxation system will stop operating.
The following functions will cause the
rear seats to move automatically.
■Seat return function linked to the
door opening operation
The rear seat will return to the upright
position automatically when the rear
door is opened for ea sier entry and exit
of the vehicle.
For the rear seat with an ottoman (if
equipped): When the rear door on the
Rear seat relaxation system (if
equipped)
A
B
C
D
E
WARNING
■Using the relaxation system
●Those who are pregnant, have recently
given birth, or suffer from ailments
requiring rest (heart disease etc.)
should consult a doctor before use.
●Do not allow children to use the relax-
ation function.
●Do not use immediately after consum-
ing a meal or alcohol, or for an
extended period of time.
●If you feel sick while using the relax-
ation function, immediately discon-
tinue use.
Automatic Seat Operation

1323-3. Adjusting the seats
side with the rear seat with an ottoman
is opened, the seatback of the rear seat
with an ottoman will move to a more
upright position. The seatback will
move to the upright position after the
door is closed and the system deter-
mines that the rear passenger has
exited.
However, if the armrest is stowed, the
rear seat will not move.
■Shift-linked rear seat reclining
function
When the shift position is shifted from
P, to enhance rear visibility for the
driver, the rear seats will recline slightly.
However, the shift-linked rear seat
reclining function will not operate in
the following situations:
 The weight of an occupant or heavy
object, etc. is detected on a rear
seat.
Once weight is detect ed on the seat, the
seat will be judged as occupied until a rear
door is opened then closed or the engine
switch is turned off and the doors are
locked.
 A rear seat belt is fastened.
 A rear door is open.
 The armrest is stowed.
When a front seat is close to a rear
seat, the rear seats may not operate or
the range of movement may be
restricted.
■Changing automatic seat opera-
tion settings
The settings can be changed on the
Rear Multi Operation Panel. ( P.318) 1
Display the home screen on the
Rear Multi Operation Panel
(P.318) and then touch “Seat”.
2 Touch “Left” or “Right”.
3 Touch .
4 Touch a button to change the set-
ting.
Rear right seat automatic operation
Rear right seatback movement
amount when door-linked rear seat
return function operates
*
Rear left seat automatic operation
*: Vehicles with a rear seat with an ottoman
A
B
C