2018 LEXUS LS500H start stop button

104 3-1. Key information
LS500h_OM_OM50F42U_(U) 3-1.Key information
The following keys are provided with
the vehicle.
Electronic keys• Operating the smart access system with
push-button start ( →
P.119 )
• Operating the wireless remote control
function ( →
P.106 )
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)Operating the smart access system with
push-button start ( → P.119)
■
Card key (if equipped)
●
The card key is not waterproof.
●
The mechanical key that is stored inside
the card key should be used only if a
problem arises, such as when the card key does not operate properly. ●
If it is difficult to take out the mechanical
key, push down the lock release button
using a pen tip etc. If it is still difficult to
pull it out, use a coin etc. ●
To store the mechanical key in the card
key, insert it while pressing the lock
release button.
●
If the battery cover is not installed and the
battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive terminal
facing the Lexus emblem.
■
When riding in an aircraft
When bringing an electronic key onto an
aircraft, make sure you do not press any
buttons on the electronic key while inside
the aircraft cabin. If you are carrying an
electronic key in your bag etc., ensure that
the buttons are not likely to be pressed acci-
dentally. Pressing a button may cause the
electronic key to em it radio waves that
could interfere with the operation of the air-
craft.
■
Electronic key battery depletion
●
The standard battery life is 1 to 2 years.
(The card key battery life is about a year
and a half.)
●
If the battery becomes low, an alarm will
sound in the cabin and a message will be
shown on the multi-information display
when the hybrid system is stopped.Keys
The keys
A
B
C
D

1093-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) 3
Before driving
To prevent unintended triggering of the
alarm, unlock the doors using the wireless
remote control and open and close a door
once after the settings have been changed.
(If a door is not opened within 60 seconds
after is pressed, the doors will be
locked again and the alarm will automati-
cally be set.)
In a case that the alarm is triggered, imme-
diately stop the alarm. ( → P.68)■
Impact detection door lock release sys-
tem
In the event that the vehicle is subject to a
strong impact, all the doors are unlocked.
Depending on the force of the impact or the
type of accident, however, the system may
not operate.
■
Operation signals
A buzzer sounds and the emergency flash-
ers flash to indicate that the doors have
been locked/unlocked. (Locked: once;
Unlocked: twice)
A buzzer sounds to indicate that the win-
dows and moon roof are operating.
■
Security feature
If a door is not opened within approximately
60 seconds after the vehicle is unlocked, the security feature automatically locks the
vehicle again. ■
When the doors cannot be locked by the
lock sensor on the upper part of the
door handle
When the doors cannot be locked even if
the lock sensor on the surface of the door
handle is touched by a finger, touch the lock
sensor with the palm.
If you are wearing gloves, remove them.
■
Open door warning buzzer
If an attempt to lock the doors is made when
a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the
door to stop the buzzer, and lock the vehi-
cle once more. ■
Setting the alarm
Locking the doors will set the alarm system.
( → P.68) ■
Conditions affecting the operation of
the smart access system with push-but-
ton start or wireless remote control
→ P.120 ■
If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key to lock and unlock
the doors. ( → P.445)
Replace the key battery with a new one if it
is depleted. ( → P.413)
■
If the 12-volt batte ry is discharged
The doors cannot be locked and unlocked
using the smart access system with
push-button start or wireless remote con-
trol. Lock or unlock the doors using the
mechanical key. ( → P.445)
■
Customization
Some functions can be customized. Multi-information
display/Beep Unlocking function
Exterior: Beeps 3
times
Interior: Pings once Holding the driver’s
door handle unlocks
only the driver’s
door.
Holding any of the
passenger door
handles unlocks all
the doors.
Exterior: Beeps
twice
Interior: Pings once Holding a door han-
dle unlocks all the
doors.

1153-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) 3
Before driving ■
Smart access system with
push-button start
While carrying the electronic key,
press the button. The trunk lid will fully open.
If the button is presse d while the trunk lid is
opening, the trunk lid will stop moving.
When all the doors are unlocked using
one of the following methods, the trunk
can be opened without the electronic
key:
 Entry function
 Wireless remote control
 Door lock switches
 Automatic door unlocking system
 Mechanical key
■
Wireless remote control
Press and hold the switch. A buzzer will sound and the trunk lid will
fully open. If the button is presse d while the trunk lid is
opening, the trunk lid will stop moving.
■
Hands Free Power Trunk Lid (if
equipped)
1 While carrying an electronic key,
stand slightly away from the vehicle,
move a foot under the center of the
rear bumper and then pull it back. The trunk lid will not start operating while a
foot is detected under the rear bumper.
If another electronic key for your vehicle is
in the vehicle, it may take slightly longer
than normal for the trunk lid to start oper-
ating.
2 A buzzer will sound and the trunk
lid will fully open/close. If a foot is moved under the rear bumper
while the trunk lid is opening, the trunk lid
will stop moving.
If a foot is moved under the rear bumper
while the trunk lid is closing, the trunk lid
will open.
■
Trunk closer switch
Press the trunk closer switch.

120 3-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) ●
When an interior alarm sounds continu-
ously
■
If “Key Detected in Vehicle” is shown on
the multi-inform ation display
An attempt was made to lock the doors
using the smart access system with push-
button start while the electronic key was still
inside the vehicle. Retrieve the electronic
key from the vehicle and lock the doors
again.
■
Battery-saving function
The battery-saving fu nction will be acti-
vated in order to prevent the electronic key
battery and the 12-volt battery from being
discharged while the vehicle is not in opera-
tion for a long time.
●
In the following situations, the smart
access system with pu sh-button start may take some time to unlock the doors.
• The electronic key has been left in an
area of approximately 6 ft. (2 m) of the
outside of the vehicle for 10 minutes or
longer.
• The smart access system with push-but-
ton start has not been used for 5 days or
longer. ●
If the smart access system with push-but-
ton start has not been used for 14 days or
longer, the doors cann ot be unlocked at
any doors except the dr iver’s door. In this
case, take hold of th e driver’s door han-
dle, or use the wireless remote control or
the mechanical key, to unlock the doors. ■
Turning an electronic key to bat-
tery-saving mode
When battery-saving mode is set, battery
depletion is minimized by stopping the elec-
tronic key from receiving radio waves.
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor flashes 4 times.
While the battery-saving mode is set, the
smart access system with push-button start
cannot be used. To cancel the function,
press any of the electronic key buttons.
■
Conditions affecting operation
The smart access system with push-button
start uses weak radio waves. In the following
situations, the communication between the
electronic key and the vehicle may be
affected, preventing the smart access sys-
tem with push-button start, wireless remote
control and immobilizer system from oper-
ating properly. (Ways of coping: → P.445)
●
When the electronic key battery is
depleted
●
Near a TV tower, electric power plant,
gas station, radio stat ion, large display, Situation Correction
procedure
An attempt was made to
lock the vehicle while a
door was open. Close all of the
doors and lock
the doors
again.
The trunk was closed
while the electronic key
was still inside the trunk
and all the doors were
locked. Retrieve the
electronic key
from the trunk
and close the
trunk lid.
Situation Correction
procedure
The power switch was
turned to ACCESSORY
mode while the driver’s
door was open (The
driver’s door was opened
when the power switch
was in ACCESSORY
mode). Turn the power
switch off and
close the
driver’s door.
The power switch was
turned off while the
driver’s door was open. Close the
driver’s door.

122 3-2. Opening, closing and locking the doors and trunk
LS500h_OM_OM50F42U_(U) • Set the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( → P.120)●
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 syst em 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.120)■
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 electronic 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 electronic key inside the
trunk.
The key confinement prevention function may not operate, depending on the loca-
tion of the key (the inside edge of the
Trunk), conditions (i nside a metal bag,
close to metallic objects) and the radio
waves in the surrounding area. ( → P.116)■
If the smart access system with
push-button start does not operate
properly ●
Locking and unloc king the doors and
trunk: → P.445●
Starting the hybrid system: → P.446■
Customization
Some functions can be customized.
( → P.481) ■
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.108, 115, 445)●
Starting the hybrid system and changing
power switch modes: → P.446●
Stopping the hybrid system: → P.170

1694-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4
Driving ■
If the 12-volt battery is discharged
The hybrid system cannot be started using
the smart access system with push-button
start. Refer to P.447 to restart the hybrid
system. ■
Electronic key battery depletion
→ P.104■
Conditions affe cting operation
→ P.120■
Notes for the entry function
→ P.121■
Steering lock function●
After turning the power switch off and
opening and closing the doors, the steer-
ing wheel will be lock ed due to the steer-
ing lock function. Operating the power
switch again automatically cancels the
steering lock.●
When the steering lock cannot be
released, “Push Power Switch While
Turning Steering Whee l in Either Direc-
tion” will be displayed on the multi-infor-
mation display.
Press the power switch shortly and firmly
while turning the steering wheel left and
right.
●
To prevent the steering lock motor from
overheating, the motor may be sus-
pended if the hybrid system is turned on
and off repeatedly in a short period of
time. In this case, refrain from operating
the power switch. After about 10 sec-
onds, the steering lock motor will resume
functioning.
■
If the “READY” indicator does not come
on
In the event that the “READY” indicator
does not come on even after performing
the proper procedures for starting the vehi- cle, contact your Lexus dealer immediately. ■
If the hybrid system is malfunctioning
→ P.64 ■
Electronic key battery
→ P.413 ■
Operation of the power switch ●
If the switch is no t pressed shortly and
firmly, the power switch mode may not
change or the hybrid system may not
start. ●
If attempting to restart the hybrid system
immediately after turning the power
switch off, the hybrid system may not start
in some cases. After turning the power
switch off, please wait a few seconds
before restarting the hybrid system. ■
Customization
If the smart access system with push-button
start has been deactivated in a customized
setting, refer to P.445.
WARNING■
When starting the hybrid system
Always start the hybrid system while sit-
ting in the driver’s seat. Do not depress
the accelerator pedal while starting the
hybrid system under any circumstances.
Doing so may cause an accident result-
ing in death or serious injury.
■
Caution while driving
If hybrid system failure occurs while the
vehicle is moving, do not lock or open the
doors until the vehicle reaches a safe and
complete stop. Activation of the steering
lock in this circumstance may lead to an
accident, resulting in death or serious
injury.
NOTICE
■
When starting the hybrid system
If the hybrid system becomes difficult to
start, have your vehicle checked by your
Lexus dealer immediately.

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.

300 4-5. Using the driving support systems
LS500h_OM_OM50F42U_(U) a malfunction. ■
When the accumulator tank pressure is
low
When the accumulator tank pressure is low,
the air suspension compressor and valves
may operate repeatedly even though the
vehicle height is not being changed. This
does not indicate a malfunction.
To adjust the vehicle height to one
appropriate for road and driving con-
ditions, press the vehicle height adjust-
ment switch. When high mode is enabled, the high
mode indicator on the meter will illuminate.
When the vehicle height is increased by
the access mode control function, press
the vehicle height adju stment switch twice
to enable/disable high mode.
■
The vehicle height adjustment switch
can be changed when
The power switch is in ON mode.
■
System protection function
If the vehicle height is repeatedly increased WARNING■
Situations in which the operation of
the electronically modulated air sus-
pension should be canceled
In the following situations, make sure to
disable all functions of the vehicle height
control of the electronically modulated
air suspension and then stopping the
hybrid system. Otherwise, the vehicle
height may change and part of your body
may be caught under the vehicle, possi-
bly causing injury. ●
When the vehicle is parked on a curb●
If any of the wheels is not touching the
ground●
If the vehicle needs to be jacked up●
If the vehicle is to be tied down●
If the vehicle is to be towed
■
Vehicle height co ntrol precautions
In the following situations, make sure to
check the safety of the area around the
vehicle, as the vehicle height may change
and part of someone’s body may be
caught in the vehicle, possibly causing
injury or the vehicle may be damaged.
●
When opening a door
●
When unlocking the doors using the
smart access system with push-button
start
●
When changing the vehicle height
using the vehicle height adjustment
switch NOTICE■
Parking precaution
If the vehicle is parked for a long time, the
vehicle height may change due to
changes in the ambient temperature.
When parking the vehicle, make sure
that the area above and below the vehi-
cle is clear, so that the vehicle will not
contact anything if its height changes.
Be careful when parking the vehicle in an
area with a low ceiling or near low hang-
ing objects, as the vehicle height will
increase when passengers exit the vehi-
cle and the access mode control oper-
ates.
Selecting the vehicle height