engine LEXUS LS500 2019 Workshop Manual

124 3-3. Adjusting the seats
LS500_OM_(U)_1810 3 Touch the button for the desired
operation.
Touch and hold to move the front
passenger’s seat forward and fold
the seatback forward.On vehicles with a fold able head restraint,
the head restraint will also fold forward.
Touch and hold to move the front
passenger’s seat backward and the
seatback to the upright position.On vehicles with a fold able head restraint,
the head restraint will also move to the
upright position.
■
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.) ●
If the rear armrest is stowed while the
seat position is bein g adjusted, the opera-
tion will stop. ■
Canceling an operation
To cancel an operatio n, 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.123
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 Seat 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-A
B
Front seat refresh system (if
equipped)

1253-3. Adjusting the seats
LS500_OM_(U)_1810 3
Before driving back
 “Centrifugal” Applies pressure sequen tially 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
 “Lumbar” Applies pressure sequentially from the bot-
tom to the top of the lumbar area of the
seatback
4 Select the desired intensity and
then confirm the setting.The intensity can be adjusted in 5 steps.
To stop the operation select “Stop”.
If a seat is not occupi ed, do not operate the
front seat refresh system for that seat.
■
Refresh system●
Operating conditions
• The engine switch is in IGNITION ON
mode.
• The temperature in the cabin is not
extremely high.
• For the front passenger’s seat: The weight
of an occupant is detected on the front
passenger’s seat or the front passenger’s
seat belt is fastened.
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.
●
Automatic stop function
• The operation will be canceled automati-
cally after approximately 15 minutes.
•If the power easy ac cess system begins
operating, the front seat refresh system
will stop. WARNING■
Important points while driving
Do not adjust the driver’s seat refresh
system while driving.
Using it may affect your ability to control
the vehicle, possibly leading to an acci-
dent resulting in death or serious injury. ■
Using the refresh 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
refresh 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 refresh
function, immediately discontinue use.

1273-3. Adjusting the seats
LS500_OM_(U)_1810 3
Before driving met, the preset buttons will be grayed out.
Moves the left-hand rear seat to the
upright position (Business Mode)
Moves the right-hand rear seat to
the upright position (Business
Mode)
Moves the rear seat with an otto-
man 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 otto-
man 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.308) and then touch “Seat”.
2 Touch “Left” or “Right”. 3 Select the button for the desired
adjustment.
Head restraint adjustment
(  P.135)
Shoulder bolster adjustment
Lumbar/pelvic support adjustment
Seatback angle adjustment
Seat cushion (front) angle adjust-
ment
Ottoman adjustment (if equipped)
4 Perform adjustment using the dis-
played buttons. The seat 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.A
B
C
D A
B
C
D
E
F

128 3-3. Adjusting the seats
LS500_OM_(U)_1810 ■
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.
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.■
When the front passenger’s seat is
folded forward
 P.123■
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
■
Seat return function linked to the door
opening operation
The rear seat will return to the upright posi- tion automatically when the rear door is
opened for easier entry and exit of the vehi-
cle.
For the rear seat with an ottoman (if
equipped): When the rear door on the 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 determines that the rear passen-
ger has exited.
However, if the armres t 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 recl ine slightly.
However, the shift-linke d rear seat reclining
function will not operate in the following sit-
uations: ●
The weight of an occupant or 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. ●
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.
■
Canceling an operation
To cancel an operatio n, press and hold the
button of the Rear Multi Opera-
tion Panel or press it 3 times in quick suc-
cession.
■
Pre-collision seatback s for the passen-
ger seats
 P.205, 215
■
Customization
Some functions can be customized.
(  P.466)

1293-3. Adjusting the seats
LS500_OM_(U)_1810 3
Before driving 1 Press the seat switch.
2 Press the sub function button of the
Remote Touch. (  P.304)
3 Select .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 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.
●
When the armrest is stowed and a rear
seat belt is fastened. 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.308) and then touch “Relax-
ation”.
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.Returning the rear seat from the
front seats
A 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.
Rear seat relaxation system (if
equipped)
A
B
C
D
E

130 3-3. Adjusting the seats
LS500_OM_(U)_1810 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 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. ●
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 being used is opened,
the relaxation system will stop operating.
The seat and steering wheel are auto-
matically adjusted to allow the driver to
enter and exit the vehicle easily. 
Driver’s seat
When all of the following have been
performed, the seat and steering
wheel are automatically adjusted to a
position that allows driver to enter and
exit the vehicle easily.
• The shift position has been shifted to
P.
• The engine switch has been turned
off.
• The driver’s seat belt has been
unfastened. When the driver’s seat adjustment
switches are in front passenger mode
(  P.121), the seat and steering wheel will
not move.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. Driving position memory This feature automatically adjusts
the positions of the front seats,
steering wheel, outside rear view
mirrors and head-up display (if
equipped) to make entering and
exiting the vehicle easier or to suit
your preferences.
Up to 3 different driving positions
can be recorded.
Each electronic key (including a
card key) can be registered to
recall your preferred driving posi-
tion.
Power easy access system

1313-3. Adjusting the seats
LS500_OM_(U)_1810 3
Before driving On vehicles with adjustable seat cush-
ion side bolsters, when the driver’s
door is opened with the engine switch
off, the seat cushio n side bolsters will
lower if they are in the default position.
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. 
Front passenger’s seat
If all of the following have been per-
formed while the vehicle is stopped,
the lumbar support, pelvic support,
shoulder bolster (if equipped), seat-
back side bolster (if equipped), and hip
support (if equipped) will be moved to
their default position. On vehicles with
adjustable seat cushion side bolsters,
the seat cushion side bolsters will
lower.
• The passenger’s seat belt has been
unfastened.
• The front passenger’s door is
opened. ■
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 in the rearmost or uppermost
position or close to the rear seat. ●
If the seat position is adjusted during
power easy access syst em operation, the
automatic operation will stop. (The seat
will change to manual operation.) ●
If the seat position is adjusted during or
after the power easy access system oper-
ation when the driver is exiting the vehi-
cle, the power easy access system will not
operate when entering the vehicle. ■
Seat cushion side bolster adjustment (if
equipped)
If the seat cushion side bolsters have been
lowered, when the front door is closed, the
seat cushion side bolsters will move to their
default position.
If the seat is adjusted while the seat cushion
side bolsters are moving to the default posi-
tion, their movement will be temporarily
suspended. (The seat cushion side bolsters
will move to the default position after a cer-
tain amount of time.) ■
Customization
Some functions can be customized.
(  P.466)
1 Turn the engine switch to IGNI-
TION ON mode.
2 Check that the shift position is in P.
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” Recording a driving position into
memory

132 3-3. Adjusting the seats
LS500_OM_(U)_1810 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.
When the driver’s seat adjustment
switches are in front passenger mode
(  P.121), the position of the driver’s seat
cannot be registered.
To record the position of the front pas-
senger’s seat, adjust the front passen-
ger’s seat to the desired position and
perform step 4 using the buttons on
the front passenger’s side. ■
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.
1 Turn the engine switch to IGNI-
TION ON mode.
2 Check that the shift position is in P. 3 Press one of the buttons for the
driving position you want to recall
until the buzzer sounds. When the driver’s seat adjustment
switches are in front passenger mode
(  P.121), a driving position cannot be
recalled.
■
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”. ●
Press the mode change button. ●
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). ■
Recalling a driving position
If a driving position is recalled, the move-
ment of the front seat may be stopped part-
way if the seat moves close to the rear seat.
If a rear passenger is determined to be in
the vehicle, the rearward movement of the
front seat may be stopped partway to
ensure sufficient space for the rear passen-
ger.
■
Recalling the front passenger’s seat
position (vehicles with a rear seat with
an ottoman)
If the ottoman of the rear seat is extended,
the front passenger’s se at position cannot
be recalled.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

1333-3. Adjusting the seats
LS500_OM_(U)_1810 3
Before driving ■
Operating the driving position memory
after turning the engine switch off
Driver’s seat:
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.
Front passenger’s seat:
Recorded seat positions can be recalled up
to 180 seconds after the front passenger’s
door is opened.
■
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 Turn the engine switch to IGNI-
TION ON mode.
2 Check that the shift position is in P.
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 Check that the shift position is in P.
3 While pressing the “SET” button,
press and hold the door lock switch
(either lock or unlock) until the
buzzer sounds twice. If the button could not be canceled, the
buzzer sounds continuously for approxi-
mately 3 seconds. ■
Recall procedure
1 Make sure that the doors are
locked before recalling the driving
position. Carry the electronic key
that has been registered to the driv-
ing position, and then unlock and
open the driver’s door using the
smart access system with push-but-
ton start or wireless remote control. The driving position will move to the
recorded position (not including the steer-
ing wheel and head-up display [if
equipped]). However, the seat will move to
a position slightly behind the recorded
position in order to make entering the vehi-Registering/canceling/recall a
driving position to an electronic
key (including a card key) (mem-
ory recall function)

134 3-3. Adjusting the seats
LS500_OM_(U)_1810 cle easier.
If the driving position is in a position that
has already been recorded, the seat and
outside rear view mirrors will not move.
2 Turn the engine switch to ACCES-
SORY mode or IGNITION ON
mode, or fasten a seat belt.The seat, steering wheel and head-up dis-
play (if equipped) will move to the
recorded position. ■
Recalling the driving position using the
memory recall function●
Different driving positions can be regis-
tered for each electronic key. Therefore,
the driving position that is recalled may
be different depending on the key being
carried.●
If a door other than the driver’s door is
unlocked with the smart access system
with push-button start, the driving posi-
tion cannot be recalled. In this case, press
the driving position button which has
been set.■
Customization
Some functions can be customized.
(  P.466) *
: If equipped
1 Turn the engine switch to IGNI-
TION ON mode.
2 Display the home screen on the
Rear Multi Operation Panel
(  P.308) and then touch “Seat”.
3 Touch “Left” or “Right”.
4 Adjust the rear seat to the desired
position and then touch “Set Mem-
ory”.
5 Touch “1” or “2”. If the preset is being used, the previously
recorded seat position will be overwritten.
■
In order to correctly use the 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.Rear seat position memory *
The rear seat position can be mem-
orized and recalled with the touch
of a button.
Recording a position into mem-
ory
WARNING
■
Seat adjustme nt caution
Take care during seat adjustment so that
the rear passengers do not strike the
front seats.