2020 LEXUS LS500 battery

1453-5. Opening, closing the windows and moon roof
3
Before driving
This function can be used to prevent
children from accidentally opening or
closing a passenger window.
Press the switch.
The indicator will come on and the pas-
senger windows will be locked.
The passenger windows can still be
opened and closed using the driver’s
switch even if the lock switch is on.
■The power windows can be operated
when
The engine switch is in IGNITION ON
mode.
■When the battery is disconnected
The window lock switch is disabled. If nec-
essary, press the window lock switch after
reconnecting the battery.WARNING
●The jam protection function may not
work if something gets jammed just
before the window is fully closed. Be
careful not to get any part of your body
jammed in the window.
■Catch protection function
●Never use any part of your body or
clothing to intentionally activate the
catch protection function.
●The catch protection function may not
work if something gets caught just
before the window is fully opened. Be
careful not to get any part of your body
or clothing caught in the window.
Preventing accidental operation
(window lock switch)
A

1654-2. Driving procedures
4
Driving
4-2.Driving procedures
1Press the parking brake switch to
check that the parking brake is set.
(P.176)
The parking brake indicator will come on.
2 Firmly depress the brake pedal.
and a message will be displayed on
the multi-information display.
If it is not displayed, the engine cannot be
started.
3 Press the engine switch shortly and
firmly.
When operating the engine switch, one
short, firm press is enough. It is not neces-
sary to press and hold the switch.
The engine will crank until it starts or for up
to 30 seconds, whichever is less.
Continue depressing the brake pedal until
the engine is completely started.
The engine can be started from any engine
switch mode.
■Engine switch illumination
According to the situation, the engine
switch illumination operates as follows.
●When a door is opened, or the engine
switch mode is changed from ACCES-
SORY or IGNITION ON mode to off,
the engine switch illumination slowly
blinks.
●When depressing the brake pedal with
carrying the electronic key on your per-
son, the engine switch illumination rapidly
blinks.
●When the engine sw itch is in ACCES-
SORY or IGNITION ON mode, the
engine switch illumination illuminates.
■If the engine does not start
●The engine immobilizer system may not
have been deactivated. ( P.63)
Contact your Lexus dealer.
●If a message related to start-up is shown
on the multi-information display, read the
message and follow the instructions.
■If the battery is discharged
The engine cannot be started using the
smart access system with push-button start.
Refer to P.439to restart the engine.
■Electronic key battery depletion
 P.96
■Conditions affecting operation
 P.113
■Notes for the entry function
 P.113
■Steering lock function
●After turning the engine 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 engine
switch again automatically cancels the
steering lock.
●When the steering lock cannot be
released, “Push Engine Switch While
Turning Steering Whee l in Either Direc-
tion” will be displayed on the multi-infor-
mation display.
Press the engine switch shortly and firmly
Engine (ignition) switch
Performing the following opera-
tions when carrying the electronic
key on your person starts the
engine or changes engine switch
modes.
Starting the engine

1664-2. Driving procedures
while turning the steering wheel left and
right.
●To prevent the steering lock motor from
overheating, operation of the motor may
be suspended if the engine is turned on
and off repeatedly in a short period of
time. In this case, refrain from operating
the engine switch. After about 10 sec-
onds, the steering lock motor will resume
functioning.
■Electronic key battery
 P.403
■Operation of the engine switch
●If the switch is not pressed shortly and
firmly, the engine switch mode may not
change or the engine may not start.
●If attempting to restart the engine imme-
diately after turning the engine switch off,
the engine may not start in some cases.
After turning the engine switch off, please
wait a few seconds before restarting the
engine.
■Customization
If the smart access sy stem with push-button
start has been deactivated in a customized
setting, refer to P.437.
1Stop the vehicle completely.
2
If the parking brake is in manual
mode, set the parking brake.
( P.176)
3
Shift the shift position to P. ( P.171)
Check that the shift position indicator
shows P and the parking brake indicator is
illuminated.
4Press the engine switch.
The engine will stop, and the meter display
will be extinguished (the shift position indi-
cator will be extinguished a few seconds
after the meter display).
5Release the brake pedal and check
that “ACCESSORY” or “IGNI-
TION ON” is not shown on the
meter.
WARNING
■When starting the engine
Always start the engine while sitting in
the driver’s seat. Do not depress the
accelerator pedal while starting the
engine under any circumstances.
Doing so may cause an accident result-
ing in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle
is moving, do not lock or open the doors
until the vehicle reaches a safe and com-
plete stop. Activation of the steering lock
in this circumstance may lead to an acci-
dent, resulting in death or serious injury.
NOTICE
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start
or stalls frequently, have your vehicle
checked by your Lexus dealer immedi-
ately.
■Symptoms indicating a malfunction
with the engine switch
If the engine switch seems to be operat-
ing somewhat differently than usual, such
as the switch sticking slightly, there may
be a malfunction. Contact your Lexus
dealer immediately.
Stopping the engine

1684-2. Driving procedures
Modes can be changed by pressing
the engine switch with the brake pedal
released. (The mode changes each
time the switch is pressed.)
1
Off
The emergency flashers can be used.
2ACCESSORY mode
Some electrical components such as the
audio system can be used.
“ACCESSORY” will be displayed on the
meter.
3IGNITION ON mode
All electrical components can be used.
“IGNITION ON” will be displayed on the meter.
■Auto power off function
If the vehicle is left in ACCESSORY mode
for more than 20 minutes or IGNITION
ON mode (with the engine not running) for
more than an hour with the shift position in
P, the engine switch will automatically turn
off. However, this function cannot entirely
prevent the battery discharge. Do not leave
the vehicle with the engine switch in
ACCESSORY or IGNITION ON mode
for long periods of time when the engine is
not running.
■When the shift control system malfunc-
tions
When attempting to turn the engine switch
off while there is a ma lfunction in the shift
control system, the engine switch mode
may change to ACCESSO RY mode. In this
case, ACCESSORY mode may be turned
off by applying the parking brake and press-
ing the engine switch again. If there is a mal-
function in the system, have the vehicle
inspected by your Lexus dealer immedi-
ately.
WARNING
●Do not leave the engine running in an
area with snow build-up, or where it is
snowing. If snowbanks build up around
the vehicle while the engine is running,
exhaust gases may collect and enter
the vehicle.
Changing engine switch modes
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in
ACCESSORY or IGNITION ON
mode for long periods of time without
the engine running.
●If “ACCESSORY” or “IGNITION
ON” is displayed on the meter, the
engine switch is not off.
Exit the vehicle after turning the
engine switch off.

1724-2. Driving procedures
■Shifting the shift position from P to
other positions
 While depressing the brake pedal
firmly, operate the shift lever. If the
shift lever is operated without
depressing the brake pedal, the
buzzer will sound and the shifting
operation will be disabled.
 When selecting the shift position,
make sure that the shift position has
been changed to the desired posi-
tion by checking the shift position
indicator provided on the instru-
ment cluster.
 The shift position cannot be
changed from P to M directly.
■Automatic P position selection function
In the following situations, the shift position
is automatically changed to P.
●When pressing the engine switch with the
vehicle stopped while the engine switch is
in IGNITION ON mode and the shift
position is in a position other than P (after
the shift position has changed to P, the
engine switch will turn off)
*
●When the vehicle is stopped after the
engine has been stopped in an emer-
gency while driving
●When voltage of the battery drops while
the shift position is in a position other than
P
*: When the engine switch is pressed while driving at extremely slow speeds, such
as immediately before stopping the vehi-
cle, the shift position may automatically
change to P. Make sure that the vehicle
is completely stoppe d before pressing
the engine switch.
■If the shift position cannot be shifted
from P
There is a possibility that the battery is dis- charged. Check the batter
y in this situation.
(  P.439)
■Driving mode
 P.292
■Snow mode
Snow mode can be se lected to suit the
conditions when driving on slippery
WARNING
■P position switch
●Do not press the P position switch
while the vehicle is moving.
If the P position switch is pressed when
driving at very low speeds (for exam-
ple, directly before stopping the vehi-
cle), the vehicle may stop suddenly
when the shift position switches to P,
which could lead to an accident.
●In order to prevent the shift position
from accidentally being changed, do
not touch the P position switch or shift
lever when not using them.
●After changing the shift position to P,
do not release the brake pedal until the
shift position indicator shows P and the
parking brake indicator is illuminated.
Otherwise, the vehicle may move,
possibly leading to an accident.
NOTICE
■Notes regarding shift lever and P
position switch operation
Avoid repeatedly operating the shift
lever and P position switch in quick suc-
cession.
The system protection function may acti-
vate and it will not be temporarily possi-
ble to shift the shift position other than P.
If this happens, please wait for a while
before attempting to change the shift
position again.
Selecting the driving mode

1814-3. Operating the lights and wipers
4
Driving
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detect-
ing the level of ambient light and may cause
the automatic headlight system to malfunc-
tion.
■Automatic light off system
●When the headlights are on: The head-
lights and tail lights turn off 30 seconds
after the driver’s door is opened and
closed if the engine switch is turned to
ACCESSORY mode or turned off. (The
lights turn off immediately if on the
key is pressed after all the doors are
closed.)
●When only the tail lights are on: The tail
lights turn off automatically if the engine
switch is turned to ACCESSORY mode
or turned off and the driver’s door is
opened.
To turn the lights on again, turn the engine
switch to IGNITION ON mode, or turn the
light switch off once and then back to
or .
■Light reminder buzzer
A buzzer sounds when the engine switch is
turned off or turned to ACCESSORY
mode and the driver’s door is opened while
the lights are turned on.
■Automatic headlight leveling system
The level of the headlights is automatically
adjusted according to the number of pas-
sengers and the loading condition of the
vehicle to ensure that the headlights do not
interfere with other road users.
■Windshield wiper linked headlight illu-
mination
When driving during daytime with the
headlight switch turned to , if the wind-
shield wipers are used, the headlights will
turn on automatically after several seconds
to help enhance the visibility of your vehicle.
■Battery-saving function
In order to prevent the battery of the vehicle from discharging, if the headlights and/or
tail lights are on when
the engine switch is
turned off the battery saving function will
operate and automatically turn off all the
lights after approximately 20 minutes.
When the engine switch is turned to IGNI-
TION ON mode, the battery-saving func-
tion will be disabled.
When any of the following are performed,
the battery-saving function is canceled
once and then reactivated. All the lights will
turn off automatically 20 minutes after the
Battery- saving function has been reacti-
vated:
●When the headlight switch is operated
●When a door or the trunk is opened or
closed
■Welcome light illumination control
The parking lights and tail lights automati-
cally turn on at night when the doors are
unlocked using the entry function or wire-
less remote control if the light switch is in
the position.
■Customization
Some functions can be customized.
(  P.470)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than
necessary when the engine is not run-
ning.
Turning on the high beam head-
lights

2104-5. Using the driving support systems
●Pre-collision brake assist
●Pre-collision braking
●Active steering assist
The system may not operate in the following situations:
●If a battery terminal has been disconnected and reconnected and then the vehicle has not
been driven for a certain amount of time
●If the shift position is in R
●If VSC is disabled (only the pedestrian alert and pre-collision warning function will be
operational)
●When there is insufficient safe or unobstructed space for the vehicle to be steered into
●When an object is approaching the area the vehicle is to be steered into
■Vehicle, pedestrian or bicyclist detec-
tion function The pre-collision system
detects vehicles,
pedestrians and bicyclists based on the size,
profile, and motion of the person. However,
objectsVehicle speedApproaching vehicle speed
Vehicles approaching from
the front left or right sideApprox. 7 to 37 mph (10 to 60 km/h)Approx. 10 to 37 mph (15 to 60 km/h)
objectsVehicle speedRelative speed between your vehicle and object
Preceding vehiclesApprox. 20 to 110 mph (30 to 180 km/h)Approx. 20 to 110 mph (30 to 180 km/h)
Bicyclists and pedestriansApprox. 20 to 50 mph (30 to 80 km/h)Approx. 20 to 50 mph (30 to 80 km/h)
objectsVehicle speedApproaching vehicle speed
Vehicles approaching from the front left or right sideApprox. 19 to 37 mph (30 to 60 km/h)Approx. 10 to 37 mph (15 to 60 km/h)
objectsVehicle speedRelative speed between your vehicle and object
Preceding vehiclesApprox. 3 to 110 mph (5 to 180 km/h)Approx. 3 to 110 mph (5 to 180 km/h)
Bicyclists and pedestriansApprox. 3 to 50 mph (5 to 80 km/h)Approx. 3 to 50 mph (5 to 80 km/h)
objectsVehicle speed
PedestriansApprox. 25 to 40 mph (40 to 65 km/h)
GuardrailApprox. 37 to 50 mph (60 to 80 km/h)

2204-5. Using the driving support systems
The system may not operate in the following situations:
●If a battery terminal has been disconnected and reconnected and then the vehicle has not
been driven for a certain amount of time
●If the shift position is in R
●When the VSC OFF indicator is illuminated (only the pre-collision warning function will
be operational)
■Object detection function
The system detects ob jects based on their
size, profile, motion, etc. However, an object
may not be detected depending on the sur-
rounding brightness and the motion, pos-
ture, and angle of the detected object,
preventing the system from operating prop-
erly. ( P.221)
The illustration shows an image of detect-
able objects.
■Cancelation of the pre-collision braking
If either of the following occur while the
pre-collision braking function is operating, it
will be canceled:
●The accelerator pedal is depressed
strongly.
●The steering wheel is turned sharply or
abruptly.
■Conditions under which the system may
operate even if there is no possibility of a
collision
●In some situations such as the following,
the system may determine that there is a
possibility of a frontal collision and oper- ate.
• When passing a detectable object, etc.
• When changing lanes while overtaking a detectable object, etc.
• When approaching a detectable object in an adjacent lane or on the roadside,
such as when changing the course of
travel or driving on a winding road
• When rapidly closing on a detectable object, etc.
• When approaching objects on the road-
side, such as detectable objects, guard-
rails, utility poles, trees, or walls
• When there is detectable object or other
object by the roadside at the entrance of
a curve
• When there are patterns or paint in front
Detectable objectsVehicle speedRelative speed between your vehicle and object
VehiclesApprox. 7 to 110 mph (10 to
180 km/h)Approx. 7 to 110 mph (10 to
180 km/h)
Bicyclists and pedestriansApprox. 7 to 50 mph (10 to
80 km/h)Approx. 7 to 50 mph (10 to
80 km/h)