warning LEXUS LS500H 2018 Repair Manual

1133-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) 3
Before driving WARNING●
Remove any heavy loads, such as snow
and ice, from the trunk lid before
opening it. Failure to do so may cause
the trunk lid to suddenly shut again
after it is opened.●
When opening or closing the trunk lid,
thoroughly check to make sure the
surrounding area is safe.●
If anyone is in the vicinity, make sure
they are safe and let them know that
the trunk is about to open or close.●
Use caution when opening or closing
the trunk lid in windy weather as it may
move abruptly in strong wind.●
The trunk lid may sudden ly shut if it is
not opened fully. It is more difficult to
open or close the trunk lid on an
incline than on a level surface, so
beware of the trunk lid unexpectedly
opening or closing by itself. Make sure
that the trunk lid is fully open and
secure before using the trunk.
●
When closing the trunk lid, take extra
care to prevent your fingers etc. from
being caught. ●
When closing the trunk lid, make sure
to press it lightly on its outer surface. If
the trunk handle is used to fully close
the trunk lid, it may result in hands or
arms being caught. ●
Do not attach any accessories other
than genuine Lexus parts to the trunk
lid. Such additional weight on the trunk
lid may cause the lid to suddenly shut
again after it is opened. ■
Trunk easy closer
In the event that the trun k lid is left slightly
open, the trunk easy closer will automati-
cally close it to the fully closed position. It
takes several second s before the trunk
easy closer begins to operate. Be careful
not to catch fingers or anything else in
the trunk lid, as this may cause bone frac-
tures or other serious injuries.
■
Power trunk opener and closer
Observe the following precautions when
operating the power trunk opener and
closer.
Failure to do so may cause serious 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 trunk is about to open or close.
●
If the trunk closer switch is pressed
while the trunk lid is opening during
automatic operation, the trunk lid
stops opening. Take extra care when
on an incline, as the trunk lid may open
or close suddenly.

114 3-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) ■
Trunk opener switch
Press the trunk opener switch. The trunk lid will fully open.WARNING●
On an incline, the trunk lid may sud-
denly shut after it opens automatically.
Make sure the trunk lid is fully open
and secure before using the trunk.●
In the following situations, the power
trunk opener and closer may detect an
abnormality and automatic operation
may be stopped. In this case, the trunk
lid has to be operated manually. Take
extra care in this situation, as the
stopped trunk lid ma y suddenly shut,
causing an accident.
• When the trunk lid contacts an obsta-
cle
• 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●
Do not attach any accessories other
than genuine Lexus parts to the trunk
lid. The power trunk opener and closer
may not operate, caus ing itself to mal-
function, or the trun k lid may suddenly
shut again after it is opened.■
Hands Free Power Trunk Lid (if
equipped)
Observe the following precautions.
Failure to do so may cause serious injury.
●
Exhaust gasses cause the exhaust
pipes to become quite hot. When
operating the Hands Free Power Trunk
Lid, be careful not to touch the exhaust
pipe.
●
Do not operate the Hands Free Power
Trunk Lid if there is little space under
the rear bumper.
■
Jam protection function
Observe the following precautions.
Failure to do so may cause serious injury.
●
Never use any part of your body to
intentionally activate the jam protec-
tion function. ●
The jam protection function may not
work if something gets caught just
before the trunk lid fully closes. Be
careful not to catch fingers or anything
else in the trunk lid. ●
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.
NOTICE■
To prevent trunk easy closer malfunc-
tions
Do not apply force to the trunk lid while
the trunk easy closer is operating. ■
To prevent damage to the power
trunk opener and closer ●
Make sure that there is no luggage or
snow on the trunk lid before operating
the power trunk opener and closer. In
addition, make sure that there is no ice
between the trunk lid and frame that
prevents movement of the trunk lid.
Operating the power trunk opener
and closer when excessive load is
present on the trunk lid may cause a
malfunction. ●
Do not apply excessive force to the
trunk lid while the power trunk opener
and closer is operating.
Opening/closing the trunk

118 3-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) trical noise source which affects the sen-
sitivity of the Hands Free Power Trunk Lid,
such as a pay parking spot, gas station,
electrically heated road, or fluorescent
light
• When the vehicle is near a TV tower,
electric power plant, radio station, large
display, airport or other facility that gen-
erates strong radio waves or electrical
noise
• When a large amount of water is applied
to the rear bumper, such as when the
vehicle is being washed or in heavy rain
• When mud, snow, ice, etc. is attached to
the rear bumper
• When the vehicle has been parked for a
while near objects that may move under
the rear bumper, such as grass
• When an accessory is installed to the rear
bumper
Make sure to disable the Hands Free
Power Trunk Lid (kick sensor) if an acces-
sory is installed to the rear bumper. ●
The Hands Free Power Trunk Lid will not
operate in the following situations:
• When an electronic key is not carried
• When an electronic key is not within the
effective range (detection area)■
Open door warning buzzer
→ P.111■
Customization
Some functions can be customized.
( → P.481)
The trunk opener switch can be tem-
porarily disabled to protect luggage
stored in the trunk against theft.
Turn the main switch in the glove box
off to disable the trunk opener. On
Off The trunk lid cannot be opened even with
the wireless remote control, entry function
or Hands Free Power Trunk Lid.
■
When leaving a key to the vehicle with a
parking attendant
→ P.107
Luggage security system A
B

1193-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) 3
Before driving ■
Antenna location
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the trunk
Antenna outside the trunk ■
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 opening the trunk
The system can be operated when the
electronic key is within about 2.3 ft. (0.7 m)
of the trunk release button.
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.437)
When only an alarm sounds, circumstances
and correction procedures are as follows.
●
When an exterior alarm sounds once for
5 secondsSmart access system with
push-button start The following operations can be
performed simply by carrying the
electronic key (including the card
key) on your person, for example in
your pocket. The driver should
always carry the electronic key.
 Locks and unlocks the doors
( → P.108)
 Opens the trunk ( → P.115)
 Starts the hybrid system
( → P.168)
A
B
C
D A
B
C

1273-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) 3
Before driving 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.119)
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.

128 3-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) 3-3.Adjusting the seats
■
Seat adjustment switches
Seat position adjustment switch
Seatback angle adjustment switch
Seat cushion (front) angle adjust-
ment switch
Vertical height adjustment switchFront 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.
■
Operating the front passenger’s seat
from the driver’s seat or rear seat
Do not operate the front passenger’s seat
when a passenger is seated in it. In addi-
tion, do not let anyone sit down in the
front passenger’s seat while the seat is
being operated or when the head
restraint is being folded. The front pas-
senger may catch their legs between the
instrument panel and seat, or the head
restraint may interfer e with their head,
resulting in injury. ■
When the front passenger’s seat is
folded forward
If the outside rear view mirror is difficult
to see, due to the position of the front
passenger’s seat, mo ve the front passen-
ger’s seat to an appropriate position.
Doing so may lead to mishandling of the
vehicle and cause an accident, resulting
in death or serious injury.
NOTICE■
Operating the front passenger’s seat
from the driver’s seat or rear seat
Before operating the front passenger’s
seat, make sure that there is no luggage
or any other objects on the seat or in the
footwell that could prevent its operation.
Such items may result in excess force
being applied, causing damage to the
seat and/or the luggage.
Adjustment procedure
A
B
C
D

134 3-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) 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 power switch is in 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 power 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.

1353-3. Adjusting the seats
LS500h_OM_OM50F42U_(U) 3
Before driving *
:If equipped
■
Manual operation
1 Display the home screen on the
Rear Multi Operation Panel
( → P.318) and then touch “Seat”.
2 Touch “Left” or “Right”.Power rear seat *
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.●
When adjusting the rear seat with an
ottoman, make sure there is sufficient
space so that a foot does not get
caught between the ottoman and front
passenger seat . (If equipped)●
Vehicle with rear seat entertainment
system: When the rear seat is moving
to the Entertainment Mode position,
do not allow hands near the rear dis-
play. Otherwise, a hand or finger may
be caught, possibly causing injury.■
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.
■
Using the ottoman (if equipped)
●
Do not sit on the ottoman.
If someone sits on th e ottoman, the seat
belt cannot be fitted properly, and they
may be thrown from the seat, resulting in
death or serious injury in the event of an
accident or sudden braking. ●
When getting in or out of the vehicle,
retract the ottoman. If the ottoman is
not retracted, it may cause a fall, result-
ing in injury. ●
Do not operate the ottoman when the
vehicle is moving. ●
Do not allow anyone to put their hands
or feet under the re ar seat when stow-
ing the ottoman.
NOTICE■
To prevent an ottoman malfunction (if
equipped) ●
Do not place any objects in the rear
seat footwell that could prevent the
operation of the ottoman. ●
Do not place heavy luggage on the
ottoman. ●
Do not place any objects under the
ottoman while it is raised for use. These
objects may interfere with the ottoman
being folded, causing damage to the
ottoman or the objects themselves. ■
To prevent a rear display malfunction
(if equipped)
Do not attempt to move the rear display
by hand, as doing so may damage the
rear display.
Adjustment procedure

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