belt LEXUS LS500H 2018 Service Manual

1373-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) 3
Before driving weight is not detected on the rear seat,
Business Mode cannot be selected.
Once weight is detect ed on the seat, the
seat will be judged as occupied until the
rear door is opened then closed or the
power switch is turned off. ■
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 power 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 the
rear door is opened then closed or the
power switch is turned off. ●
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 power 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.132
■
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 power switch is
turned off
After a certain time el apses after the power
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 the
rear door is opened then closed or the
power switch is turned off.
●
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.
■
Pre-collision seatback s for the passen-
ger seats
→ P.210, 220
■
Customization
Some functions can be customized.
( → P.481)

138 3-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) 1 Press the seat switch.
2 Press the sub function button of the
Remote Touch. ( → P.314)
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 the
rear door is opened then closed or the
power switch is turned off.
●
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.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 occupied, do not operate the 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

1393-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) 3
Before driving rear seat relaxation system for that seat. ■
Relaxation system●
Operating conditions
• The power switch is in 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 the
rear door is opened then closed or the
power switch is turned off. ●
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 power 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.130), 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

140 3-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) On vehicles with adjustable seat cush-
ion side bolsters, when the driver’s
door is opened with the power 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 power switch has been turned
to ACCESSORY mode or 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.481)
1 Turn the power switch to 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

1433-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) 3
Before driving 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 power switch to ACCES-
SORY mode or ON mode, or fas-
ten 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.481) *
: If equipped
1 Turn the power switch to ON
mode.
2 Display the home screen on the
Rear Multi Operation Panel
( → P.318) 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.

144 3-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) 1 Turn the power switch to ON
mode.
2 Display the home screen on the
Rear Multi Operation Panel
( → P.318) and then touch “Seat”.
3 Touch “1” or “2”.When the operating conditions are not
met, the buttons will be grayed out.
To stop the operation touch “STOP”.
If the seat is adjust ed while a memorized
position is being recalled, the automatic
operation will stop. (The seat will change to
manual operation.)
■
Operating condition
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 the
rear door is opened then closed or the
power switch is turned off. ■
Recalling a rear seat position
If a memorized rear seat position is recalled,
the seat may stop part-way to ensure suffi-
cient space for the rear passenger. ■
Recalling the ottoman position (if
equipped)
When a seat position is recalled, the otto-
man will not raise or extend. The ottoman
position can only be recalled if the memo-
rized position is lower and shorter than the
current position. 
Front seats
1 Press the seat switch.Recalling the memorized posi-
tion Head restraints Head restraints are provided for all
seats.
Vehicles with power rear seat: The
head restraint for the rear center
seat is integrated into the seatback
and cannot be adjusted. WARNING■
Head restraint precautions
Observe the following precautions
regarding the head re straints. Failure to
do so may result in death or serious
injury. ●
Use the head restraints designed for
each respective seat. ●
Adjust the head restraints to the cor-
rect position at all times. ●
Manual type: After adjusting the head
restraints, push down on them and
make sure they are locked in position. ●
Do not drive with the head restraints
removed.
Adjusting a head restraint verti-
cally and horizontally (power
head restraints)

1473-4. Adjusting the steering wheel and mirrors
LS500h_OM_OM50F42U_(U) 3
Before driving 3-4.Adjusting the steering wheel and mirrors
Operating the switch moves the steer-
ing wheel in the following directions:
1 Up
2 Down
3 Toward the driver
4 Away from the driver ■
The steering wheel can be adjusted
when
The power switch is in ACCESSORY or
ON mode *
.*
: If the driver’s seat belt is fastened, the
steering wheel can be adjusted regard-
less of power switch mode.
■
Automatic adjustment of the steering
position
A desired steering position can be entered
to memory and recalled automatically by
the driving position memory system.
( → P.139)
■
Power easy access system
The steering wheel and driver’s seat move
in accordance with power switch mode and
the driver’s seat belt condition. ( → P.139)
■
Customization
Some functions can be customized.
( → P.481) Press on or close to the mark.Steering wheel
Adjustment procedure WARNING■
Caution while driving
Do not adjust the steering wheel while
driving.
Doing so may cause the driver to mis-
handle the vehicle and cause an acci-
dent, resulting in death or serious injury.
Sounding the horn

182 4-2. Driving procedures
LS500h_OM_OM50F42U_(U) Operate the shift lever and P position
switch with the vehicle stopped and the
brake pedal depressed. ■
Turns automatic mode off
While the vehicle is stopped, pull and
hold the parking brake switch until a
message is shown on the multi-infor-
mation display
■
Parking brake operation●
When the power switch is not in ON
mode, the parking brake cannot be
released using the parking brake switch.●
When the power switch is not in ON
mode, automatic mode (automatic brake
setting and releasing) is not available. ■
Parking brake automatic release func-
tion●
When the shift position is shifted from P,
the parking brake will be released in
automatic mode.●
When all of the foll owing conditions are
met in manual mode, the parking brake
can be released by depressing the accel-
erator pedal.
• The driver’s door is closed
• The driver is wearing the seat belt
• The shift position is in D, M or R
■
If “EPB Frequently Operated Wait a
Minute” is displayed on the multi-infor-
mation display
If the parking brake is operated repeatedly
over a short period of time, the system may
restrict operation to prevent overheating. If
this happens, refrain from operating the
parking brake. Normal operation will return after about 1 minute. ■
If “EPB Activation Stopped Incom-
pletely” or “EPB unavailable” is dis-
played on the multi-information display
Operate the parking brake switch. If the
message does not disappear after operat-
ing the switch several times, the system may
be malfunctioning. Have the vehicle
inspected by your Lexus dealer. ■
Parking brake operation sound
When the parking brake operates, a motor
sound (whirring sound) may be heard. This
does not indicate a malfunction. ■
Parking brake operation ●
Depending on the power switch mode,
the parking brake indicator light will turn
on and stay on as described below:
ON mode: Comes on until the parking
brake is released.
Not in ON mode: Stays on for approxi-
mately 15 seconds. ●
When the power switch is turned off with
the parking brake set, the parking brake
indicator light will stay on for about 15
seconds. This does not indicate a mal-
function. ■
When the parking brake switch mal-
functions
Automatic mode (automatic brake setting
and releasing) will be turned on automati-
cally. ■
Parking the vehicle
→ P.158 ■
Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven
with the parking brake engaged. “EPB
Applied” is displayed on the multi-informa-
tion display. (with the vehicle reached a
speed of 3 mph [5 km/h])
■
If the brake system warning light comes
on
→ P.427
■
Usage in winter time
→ P.309

1834-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4
Driving
Press the brake hold switch to turn the
system on The brake hold standby indicator (green)
comes on. While the system is holding
the brakes, the brake hold operated indica-
tor (yellow) comes on.
■
Brake hold system operating conditions
The brake hold system cannot be turned on
in the following conditions:
●
The driver’s door is not closed.
●
The driver is not wearing the seat belt.
If any of the conditions above are detected
when the brake hold system is enabled, the
system will turn off and the brake hold
standby indicator light will go off. In addi-
tion, if any of the co nditions are detected
while the system is holding the brake, a
warning buzzer will sound and a message WARNING■
When parking the vehicle
Do not leave a child in the vehicle alone.
The parking brake may be released unin-
tentionally and there is the danger of the
vehicle moving that may lead to an acci-
dent resulting in death or serious injury.
NOTICE■
When parking the vehicle
Before you leave the vehicle, set the
parking brake, shift the shift position to P
and make sure that the vehicle does not
move. ■
When the system malfunctions
Stop the vehicle in a safe place and
check the warning messages. ■
When the parking brake cannot be
released due to a malfunction
Driving the vehicle with the parking
brake set will lead to brake components
overheating, which may affect braking
performance and increase brake wear.
Have the vehicle inspected by your
Lexus dealer immediately if this occurs. Brake Hold The brake hold system keeps the
brake applied when the shift posi-
tion is in D, M or N with the system
on and the brake pedal has been
depressed to stop the vehicle. The
system releases the brake when the
accelerator pedal is depressed with
the shift position in D or M to allow
smooth start off.
Enabling the system A
B

184 4-2. Driving procedures
LS500h_OM_OM50F42U_(U) will be shown on the multi-information dis-
play. The parking brake will then be set
automatically. ■
Brake hold function●
If the brake pedal is left released for a
period of about 3 minutes after the sys-
tem has started holding the brake, the
parking brake will be set automatically. In
this case, a warning buzzer sounds and a
message is shown on the multi-informa-
tion display.●
To turn the system off while the system is
holding the brake, firmly depress the
brake pedal and press the button again.●
The brake hold function may not hold the
vehicle when the vehicle is on a steep
incline. In this situation, it may be neces-
sary for the driver to apply the brakes. A
warning buzzer will sound and the
multi-information display will inform the
driver of this situation. If a warning mes-
sage is shown on the multi-information
display, read the message and follow the
instructions.■
When the parking brake is set automati-
cally while the system is holding the
brakes
Perform any of the follo wing operations to
release the parking brake. ●
Depress the accelerator pedal. (The
parking brake will not be released auto-
matically if the seat belt is not fastened.)●
Operate the parking brake switch with
the brake pedal depressed.
Make sure that the pa rking brake indicator
light goes off. ( → P.181)
■
When an inspection at your Lexus
dealer is necessary
When the brake hold standby indicator
(green) does not illuminate even when the
brake hold switch is pressed with the brake
hold system operating conditions met, the
system may be malfun ctioning. Have the
vehicle inspected at your Lexus dealer. ■
If “Brake Hold Fault Depress Brake to
Deactivate Visit Your Dealer” or “Brake
Hold Malfunction Visit Your Dealer” is
displayed on the multiinformation dis-
play
The system may be ma lfunctioning. Have
the vehicle inspected by your Lexus dealer. ■
Warning messages and buzzers
Warning messages and buzzers are used to
indicate a system malfunction or to inform
the driver of the need for caution. If a warn-
ing message is shown on the multi-informa-
tion display, read the message and follow
the instructions. ■
If the brake hold operated indicator
flashes
→ P.434
WARNING■
When the vehicle is on a steep incline
When using the brake hold system on a
steep incline exercise caution. The brake
hold function may not hold the vehicle in
such a situation. ■
When stopped on a slippery road
The system cannot stop the vehicle when
the gripping ability of the tires has been
exceeded. Do not use the system when
stopped on a slippery road.
NOTICE
■
When parking the vehicle
The brake hold system is not designed
for use when parking the vehicle for a
long period of time. Turning the power
switch off while the system is holding the
brake may release the brake, which
would cause the vehicle to move. When
operating the power switch, depress the
brake pedal, shift the shift position to P
and set the parking brake.