Lexus LS500 (2022 year). Manual in english

199

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

■

If a warning message is displayed on the multi-information display

A system may be temporarily unavailable or there may be a malfunction in the system.

●

In the following situations, perform the actions specified in the table. When the normal

operating conditions are detected, the message will disappear and the system will

become operational.

If the message does not disappear, contact your Lexus dealer.

●

In the following situations, if the situation has changed (or the vehicle has been driven for

some time) and the normal operating conditions are detected, the message will disappear

and the system will become operational.

If the message does not disappear, contact your Lexus dealer.

• When the temperature around the radar sensor is outside of the operational range, such

as when the vehicle is in the sun or in an extremely cold environment

• When the front camera cannot detect objects in front of the vehicle, such as when driving

in the dark, snow, or fog, or when bright lights are shining into the front camera

• Depending on the conditions in the vicinity of the vehicle, the radar may judge the sur-

rounding environment can not be properly recognized. In that case, “Pre-Collision Sys-

Situation

Actions

When the area around a camera is covered
with dirt, moisture (fogged up, covered with
condensation, ice, etc.), or other foreign
matter

Using the wiper and A/C function, remove
the dirt and other attached matter.
(



P.324)

When the temperature around the front
camera is outside of the operational range,
such as when the vehicle is in the sun or in an
extremely cold environment

If the front camera is hot, such as after the
vehicle had been parked in the sun, use the
air conditioning system to decrease the tem-
perature around the front camera.
If a sunshade was used when the vehicle
was parked, depending on its type, the sun-
light reflected from the surface of the sun-
shade may cause the temperature of the
front camera to become excessively high.

If the front camera is cold, such after the
vehicle is parked in an extremely cold envi-
ronment, use the air conditioning system to
increase the temperature around the front
camera.

The area in front of the front camera is
obstructed, such as when the hood is open
or a sticker is attached to the part of the
windshield in front of the front camera.

Close the hood, remove the sticker, etc. to
clear the obstruction.

When “Pre-Collision System Radar In Self
Calibration Unavailable See Owner’s Man-
ual” is displayed.

Check whether there is attached materials
on the radar sensor and radar sensor cover,
and if there is, remove it.

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4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

: If equipped

■

PCS (Pre-Collision System) (vehi-
cles with Lexus Safety System +
2.5)



P.219

■

LTA (Lane Tracing Assist) (vehicles
with Lexus Safety System + 2.5)



P.246

■

AHB (Automatic High Beam)



P.186

■

RSA (Road Sign Assist)



P.255

: If equipped

■

Dynamic radar cruise control with
full-speed range



P.258

Two types of sensors, located behind
the front grille and windshield, detect
information necessary to operate the
drive assist systems.

Radar sensor
Front camera

Lexus Safety System + 2.5

The Lexus Safety System + 2.5 con-
sists of the following drive assist sys-
tems and contributes to a safe and
comfortable driving experience:

Driving assist system

WARNING

■

Lexus Safety System + 2.5

The Lexus Safety System + 2.5 is

designed to operate under the assump-

tion that the driver will drive safely, and is

designed to help reduce the impact to

the occupants and the vehicle in the case

of a collision or assist the driver in normal

driving conditions.
As there is a limit to the degree of recog-

nition accuracy and control performance

that this system can provide, do not

overly rely on this system. The driver is

always responsible for paying attention

to the vehicle’s surroundings and driving

safely.

Sensors

WARNING

■

To avoid malfunction of the radar sen-

sor

Observe the following precautions.
Otherwise, the radar sensor may not

operate properly, possibly leading to an

accident resulting in death or serious

injury.

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4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

WARNING

●

Keep the radar sensor and the radar

sensor cover clean at all times.

Radar sensor
Radar sensor cover

If the front of the radar sensor or the front
or back of the radar sensor cover is dirty
or covered with water droplets, snow,
etc., clean it.
Clean the radar sensor and radar sensor
cover with a soft cloth to avoid damaging
them.

●

Do not attach accessories, stickers

(including transparent stickers) or

other items to the radar sensor, radar

sensor cover or surrounding area.

●

Do not subject the radar sensor or its

surrounding area to a strong impact.

If the radar sensor, front grille, or front

bumper has been subjected to a

strong impact, have the vehicle

inspected by your Lexus dealer.

●

Do not disassemble the radar sensor.

●

Do not modify or paint the radar sen-

sor or radar sensor cover.

●

In the following cases, the radar sensor

must be recalibrated. Contact your

Lexus dealer for details.

• When the radar sens

or or front grille

are removed and installed, or replaced

• When the front bumper is replaced

■

To avoid malfunction of the front cam-

era

Observe the following precautions.
Otherwise, the front camera may not

operate properly, possibly leading to an

accident resulting in death or serious

injury.

●

Keep the windshield clean at all times.

• If the windshield is dirty or covered

with an oily film, water droplets, snow,

etc., clean the windshield.

• If a glass coating agent is applied to the

windshield, it will still be necessary to

use the windshield wipers to remove

water droplets, etc. from the area of

the windshield in front of the front

camera.

• If the inner side of the windshield

where the front camera is installed is

dirty, contact your Lexus dealer.

●

Do not attach objects, such as stickers,

transparent stickers, etc., to the outer

side of the windshield in front of the

front camera (shaded area in the illus-

tration).

From the top of the windshield to
approximately 0.4 in. (1 cm) below
the bottom of the front camera
Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. [10 cm] to the
right and left from the center of the
front camera)

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4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

WARNING

●

If the part of the windshield in front of

the front camera is fogged up or cov-

ered with condensation, or ice, use the

windshield defogger to remove the

fog, condensation, or ice. (



P.324)

●

If water droplets cannot be properly

removed from the area of the wind-

shield in front of the front camera by

the windshield wipers, replace the

wiper insert or wiper blade.

●

Do not attach window tint to the wind-

shield.

●

Replace the windshield if it is damaged

or cracked.

After replacing the windshield, the

front camera must be recalibrated.

Contact your Lexus dealer for details.

●

Do not allow liquids to contact the

front camera.

●

Do not allow bright lights to shine into

the front camera.

●

Do not dirty or damage the front cam-

era.

When cleaning the inside of the wind-

shield, do not allow glass cleaner to

contact the lens of the front camera.

Also, do not touch the lens.

If the lens is dirty or damaged, contact

your Lexus dealer.

●

Do not subject the front camera to a

strong impact.

●

Do not change the installation position

or direction of the front camera or

remove it.

●

Do not disassemble the front camera.

●

Do not modify any components of the

vehicle around the front camera

(inside rear view mirror, etc.) or ceiling.

●

Do not attach any accessories to the

hood, front grille or front bumper that

may obstruct the front camera. Con-

tact your Lexus dealer.

●

If a surfboard or other long object is to

be mounted on the roof, make sure

that it will not obstruct the front cam-

era.

●

Do not modify the headlights or other

lights.

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4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

■

If a warning message is displayed on the multi-information display

A system may be temporarily unavailable or there may be a malfunction in the system.

●

In the following situations, perform the actions specified in the table. When the normal

operating conditions are detected, the message will disappear and the system will

become operational.

If the message does not disappear, contact your Lexus dealer.

●

In the following situations, if the situation has changed (or the vehicle has been driven for

some time) and the normal operating conditions are detected, the message will disappear

and the system will become operational.

If the message does not disappear, contact your Lexus dealer.

• When the temperature around the radar sensor is outside of the operational range, such

as when the vehicle is in the sun or in an extremely cold environment

• When the front camera cannot detect objects in front of the vehicle, such as when driving

in the dark, snow, or fog, or when bright lights are shining into the front camera

• Depending on the conditions in the vicinity of the vehicle, the radar may judge the sur-

rounding environment can not be properly recognized. In that case, “Pre-Collision Sys-

Situation

Actions

When the area around a camera is covered
with dirt, moisture (fogged up, covered with
condensation, ice, etc.), or other foreign
matter

Using the wiper and A/C function, remove
the dirt and other attached matter.
(



P.324)

When the temperature around the front
camera is outside of the operational range,
such as when the vehicle is in the sun or in an
extremely cold environment

If the front camera is cold, such after the
vehicle is parked in an extremely cold envi-
ronment, use the air conditioning system to
increase the temperature around the front
camera.

The area in front of the front camera is
obstructed, such as when the hood is open
or a sticker is attached to the part of the
windshield in front of the front camera.

Close the hood, remove the sticker, etc. to
clear the obstruction.

When “Pre-Collision System Radar In Self
Calibration Unavailable See Owner’s Man-
ual” is displayed.

Check whether there is attached materials
on the radar sensor and radar sensor cover,
and if there is, remove it.

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4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

■

Pedestrian alert

When the system determines that
there is a possibility of a frontal collision
with a stationary or moving pedestrian
in front of your vehicle, a message will
be displayed on the head-up display to
warn the driver.

■

Pre-collision warning

When the system determines that the
possibility of a frontal collision is high, a
buzzer will sound and a warning mes-
sage will be displayed on the
multi-information display to urge the
driver to take evasive action.

■

Pre-collision brake assist

When the system determines that the
possibility of a frontal collision is high,
the system applies greater braking
force in relation to how strongly the
brake pedal is depressed.

■

Pre-collision braking

If the system determines that the possi-
bility of a frontal collision is extremely
high, the brakes are automatically
applied to help avoid the collision or
reduce the impact of the collision.

PCS (Pre-Collision System)
(vehicles with Lexus Safety
System + A)

The pre-collision system uses a
front radar sensor and front camera
to detect vehicles and pedestri-
ans/bicyclists in front of your vehi-
cle and front side radar sensors to
detect vehicles approaching from
the front left or right side. When the
system determines that the possi-
bility of a frontal collision with a
vehicle or pedestrian/bicyclist is
high, a warning operates to urge
the driver to take evasive action
and the potential brake pressure is
increased to help the driver avoid
the collision. If the system deter-
mines that the possibility of a frontal
collision with a vehicle or pedes-
trian/bicyclist is extremely high, the
brakes are automatically applied to
help avoid the collision or help
reduce the impact of the collision.

The pre-collision system can be dis-
abled/enabled and the warning tim-
ing can be changed. (



P.210)

System functions

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LEXUS LS500 Owner's Manual

Driving

■

Intersection right/left turn assis-
tance

If the system determines that there is a
high possibility of a collision in the fol-
lowing situations, it will assist with
Pre-collision warning and, if necessary
Pre-collision braking. Depending on
the configuration of the intersection, it
may not be possible to support.



When you turn right/left at an inter-
section and cross the path of an
oncoming vehicle



When you turn right/left, pedestrian
is detected in the forward direction
and estimated to enter your vehi-
cle’s path (bicyclists are not
detected.)

■

Active steering assist

If the system determines that the possi-
bility of a collision with an object, such
as a guardrail, or pedestrian is high,
even though the brakes are applied,

and that the collision may be avoidable
through steering control, the system
will steer the vehicle automatically to
help avoid the collision or help reduce
the impact of the collision.

■

Active Assist for seat belts (front
seats only)

If the system determines that the possi-
bility of a frontal collision is high, the
system will retract the seat belts. Addi-
tionally, the system may retract the seat
belts if the brakes are applied suddenly
or control of the vehicle is lost.

■

Pre-collision seatbacks (front pas-
senger’s seat / power rear seat [if
equipped])

If the system determines that the possi-
bility of a frontal collision is high, it may
move the seatbacks of the front pas-
senger’s seat and power rear seats to
the upright position automatically, if
reclined.

If a seat is being adjusted, it may not be
moved by the pre-collision seat function.

■

Suspension control

When the system determines that the
possibility of a frontal collision is high,
the Adaptive Variable Suspension Sys-
tem (



P.304) will control the damp-

ing force of the shock absorbers to
help maintain an appropriate vehicle
posture.

■

Steering control

When the system determines that the
possibility of a frontal collision is high
and the driver is operating the steering
wheel, the LDH system (



P.305) will

control the turning angle of the front

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4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

and rear wheels and effort necessary
to turn the steering wheel to help
enhance steering responsiveness.

WARNING

■

Limitations of the pre-collision system

●

The driver is solely responsible for safe

driving. Always drive safely, taking

care to observe your surroundings.

Do not use the pre-collision system

instead of normal braking operations

under any circumstances. This system

will not prevent collisions or lessen col-

lision damage or injury in every situa-

tion. Do not overly rely on this system.

Failure to do so may lead to an acci-

dent, resulting in death or serious

injury.

●

Although this system is designed to

help avoid a collision or help reduce

the impact of the collision, its effective-

ness may change according to various

conditions, therefore the system may

not always be able to achieve the same

level of performance.

Read the following conditions care-

fully. Do not overly rely on this system

and always drive carefully.

• Conditions under which the system

may operate even if there is no possi-

bility of a collision:



P.213

• Conditions under which the system

may not operate properly:



P.215

●

Do not attempt to test the operation of

the pre-collision system yourself.

Depending on the objects used for

testing (dummies, cardboard objects

imitating detectable objects, etc.), the

system may not operate properly, pos-

sibly leading to an accident.

■

Pre-collision braking

●

When the pre-collision braking func-

tion is operating, a large amount of

braking force will be applied.

●

If the vehicle is stopped by the opera-

tion of the pre-collision braking func-

tion, the pre-collision braking function

operation will be canceled after

approximately 2 seconds. Depress the

brake pedal as necessary.

●

The pre-collision braking function may

not operate if certain operations are

performed by the driver. If the acceler-

ator pedal is being depressed strongly

or the steering wheel is being turned,

the system may determine that the

driver is taking evasive action and pos-

sibly prevent the pre-collision braking

function from operating.

●

In some situations, while the pre-colli-

sion braking function is operating,

operation of the function may be can-

celed if the accelerator pedal is

depressed strongly or the steering

wheel is turned and the system deter-

mines that the driver is taking evasive

action.

●

If the brake pedal is being depressed,

the system may determine that the

driver is taking evasive action and pos-

sibly delay the operation timing of the

pre-collision braking function.

■

Active steering assist

●

The steering wheel may turn automati-

cally when active steering assist is

operating.

●

As active steering assist operation will

be canceled when the system deter-

mines that a collision has been

avoided, operate the steering wheel as

necessary.

●

In the following situations, the system

may determine that the driver is taking

evasive action. In this case, the active

steering assist may not operate or may

be canceled.

• If the accelerator pedal is being

depressed strongly or the steering

wheel is being operated. In this case

the system may determine that the

driver is taking evasive action and the

pre-collision braking may not operate.

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LEXUS LS500 Owner's Manual

Driving

■

Enabling/disabling the pre-colli-
sion system

The pre-collision system can be
enabled/disabled on

(



P.77) of

the multi-information display.

The system is automatically enabled each
time the engine switch is turned to IGNI-
TION ON mode.

If the system is disabled, the PCS warn-

WARNING

• In some situations, while the active

steering assist is operating, operation

of the function may be canceled if the

accelerator pedal is depressed

strongly or the steering wheel is turned

and the system determines that the

driver is taking evasive action.

• When the active steering assist is

operating, if the steering wheel is held

firmly or is operated in the opposite

direction to that which the system is

generating torque, the function may be

canceled.

• If the brake pedal is depressed, the sys-

tem may determine that the driver is

taking evasive action and the active

steering assist operation may be

delayed.

■

Active Asssit for seat belts

If the Active Assist has operated and the

seat belts are locked in a retracted posi-

tion, immediately stop the vehicle in a

safe place, release and retract the seat

belts to unlock them and then fasten

them again.
Also, if a seat belt can be loosened, it can

be unlocked by slightly retracting it with-

out releasing it.

■

When to disable the pre-collision sys-

tem

In the following situations, disable the

system, as it may not operate properly,

possibly leading to an accident resulting

in death or serious injury:

●

When the vehicle is being towed

●

When your vehicle is towing another

vehicle

●

When transporting the vehicle via

truck, boat, train or similar means of

transportation

●

When the vehicle is raised on a lift with

the engine running and the tires are

allowed to rotate freely

●

When inspecting the vehicle using a

drum tester such as a chassis dyna-

mometer or speedometer tester, or

when using an on vehicle wheel bal-

ancer

●

When a strong impact has been

applied to the front bumper, rear

bumper or front grille, due to an acci-

dent or other reasons

●

If the vehicle cannot be driven in a sta-

ble manner, such as when the vehicle

has been in an accident or is malfunc-

tioning

●

When the vehicle is driven in a sporty

manner or off-road

●

When the tires are not properly

inflated

●

When the tires are very worn

●

When tires of a size other than speci-

fied are installed

●

When tire chains are installed

●

When a compact spare tire or an

emergency tire puncture repair kit is

used

●

If equipment (snow plow, etc.) that may

obstruct a radar sensor or the front

camera is temporarily installed to the

vehicle

Changing settings of the pre-col-
lision system

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4-5. Using the driving support systems

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ing light will turn on and a message will
be displayed on the multi-information
display.
If the pre-collision system is disabled,
the pedestrian alert system will also be
disabled.

■

Enabling/Disabling the pedestrian
alert system

The pedestrian alert can be
enabled/disabled on

(



P.77) of

the multi-information display.

■

Changing the pre-collision warn-
ing timing

The pre-collision warning timing can
be changed on

(



P.77) of the

multi-information display.

The warning timing setting is retained
when the engine switch is turned off. How-
ever, if the pre-collision system is disabled
and re-enabled, the operation timing will
return to the default setting (middle).

Early

Middle

This is the default setting.

Late

■

Changing the pedestrian alert tim-
ing

If the pre-collision warning timing is
changed, the pedestrian alert timing
will also be changed accordingly.

■

Operational conditions

The pre-collision system is enabled and the system determines that the possibility of a frontal

collision with a vehicle, pedestrian/bicyclist, guardrail, etc. or a front side collision with a

vehicle is high.
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 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

The operation speeds and operation cancellation for each function is listed below.

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4-5. Using the driving support systems

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Driving

●

Pedestrian alert

●

Pre-collision warning

While the pre-collision warning function is operating, if the steering wheel is operated heav-

ily or suddenly, the pre-collision warning may be cancelled.

●

Pre-collision brake assist

●

Pre-collision braking

Detectable objects

Vehicle speed

Pedestrians

Approx. 20 to 40 mph (30 to 65 km/h)

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 3 to 110 mph (5 to

180 km/h)

Approx. 3 to 110 mph (5 to

180 km/h)

Oncoming vehicles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 13 to 110 mph (20 to

180 km/h)

Bicyclists and pedestrians

Approx. 3 to 50 mph (5 to

80 km/h)

Approx. 3 to 50 mph (5 to

80 km/h)

Detectable objects

Vehicle speed

Approaching vehicle speed

Vehicles approaching from

the front left or right side

Approx. 7 to 37 mph (10 to

60 km/h)

Approx. 10 to 37 mph (15 to

60 km/h)

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 20 to 110 mph (30

to 180 km/h)

Approx. 20 to 110 mph (30

to 180 km/h)

Bicyclists and pedestrians

Approx. 20 to 50 mph (30

to 80 km/h)

Approx. 20 to 50 mph (30

to 80 km/h)

Detectable objects

Vehicle speed

Approaching vehicle speed

Vehicles approaching from

the front left or right side

Approx. 19 to 37 mph (30 to

60 km/h)

Approx. 10 to 37 mph (15 to

60 km/h)

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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.

●

Active steering assist

If either of the following occur while the active steering assist function is operating, it will be

canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.

●

Intersection right/left turn assistance (pre-collision warning)

When the turn signal lights are not flashing, support for turning left or right at an intersec-
tion which targets oncoming vehicles does not work.

●

Intersection right/left turn assistance (pre-collision braking)

When the turn signal lights are not flashing, support for turning left or right at an intersec-
tion which targets oncoming vehicles does not work.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 3 to 110 mph (5 to

180 km/h)

Approx. 3 to 110 mph (5 to

180 km/h)

Oncoming vehicles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 13 to 110 mph (20 to

180 km/h)

Bicyclists and pedestrians

Approx. 3 to 50 mph (5 to

80 km/h)

Approx. 3 to 50 mph (5 to

80 km/h)

Detectable objects

Vehicle speed

Pedestrians

Approx. 25 to 40 mph (40 to 65 km/h)

Guardrail

Approx. 37 to 50 mph (60 to 80 km/h)

Detectable objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehicle

and object

Oncoming vehicles

Approx. 7 to 15 mph

(10 to 25 km/h)

Approx. 20 to 35

mph (30 to 55 km/h)

Approx. 25 to 50

mph (40 to 80 km/h)

Pedestrians

Approx. 7 to 15 mph

(10 to 25 km/h)

—

Approx. 7 to 15 mph

(10 to 25 km/h)

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Driving

■

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,

a vehicle, pedestrian or bicyclist may not be

detected depending on the surrounding

brightness and the motion, posture, and

angle of the person, preventing the system

from operating properly. (



P.215)

The illustration shows an image of vehicles,

pedestrians and bicyclists.

■

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 vehicle, pedestrian or

bicyclist

• When changing lanes while overtaking a

vehicle, pedestrian or bicyclist

• When approaching a vehicle, pedestrian

or bicyclist 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 vehicle,

pedestrian, bicyclist, etc.

• When approaching objects on the road-

side, such as vehicle, pedestrian, bicyclist,

guardrails, traffic signs, utility poles, street

lights, trees, walls, etc.

• When there is a vehicle, pedestrian, bicy-

clist or object by the roadside at the

entrance of a curve

• When there are patterns or paint in front

of your vehicle that may be mistaken for a

vehicle, pedestrian or bicyclist

• When the front of your vehicle is hit by

water, snow, dust, etc.

• When overtaking a vehicle, pedestrian or

bicyclist that is changing lanes or making

a right/left turn

Detectable objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehicle

and object

Oncoming vehicles

Approx. 10 to 15 mph

(15 to 25 km/h)

Approx. 20 to 28

mph (30 to 45 km/h)

Approx. 28 to 43

mph (45 to 70 km/h)

Pedestrians

Approx. 7 to 15 mph

(10 to 25 km/h)

—

Approx. 7 to 15 mph

(10 to 25 km/h)

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4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

• When passing a vehicle, pedestrian or

bicyclist in an oncoming lane that is

stopped to make a right/left turn

• When a vehicle, pedestrian or bicyclist

approaches very close and then stops

before entering the path of your vehicle

• If the front of your vehicle is raised or low-

ered, such as when on an uneven or

undulating road surface

• When driving on a road surrounded by a

structure, such as in a tunnel or on an iron

bridge

• When there is a metal object (manhole

cover, steel plate, etc.), steps, dips, or a

protrusion on the road surface or road-

side

• When a crossing pedestrian or bicyclist

approaches very close to the vehicle

• When passing through a place with a low

structure above the road such as a low

ceiling, underpass, bridge girder, traffic

sign, etc.

• When passing under an object (road

sign, billboard, etc.)

• When approaching an electric toll gate

barrier, parking area barrier, or other

barrier that opens and closes

• When using an automatic car wash

• When driving through or under objects

that may contact the vehicle, such as thick

grass, tree branches, or a banner

• When driving through steam or smoke

• When driving near an object that reflects

radio waves, such as a large truck or

guardrail

• When driving near a TV tower, broad-

casting station, electric power plant,

radar equipped vehicles, etc., or other

location where strong radio waves or

electrical noise may be present

• When there are many things which can

reflect the radio waves of the radar in the

vicinity (tunnels, truss bridges, gravel

roads, snow covered road that have

tracks, etc.)

• While making a right/left turn, when an

oncoming vehicle or a crossing pedes-

trian has already exited the path of your

215

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

vehicle

• While making a right/left turn, closely in

front of an oncoming vehicle or a cross-

ing pedestrian.

• While making a right/left turn, when an

oncoming vehicle or a crossing pedes-

trian stops before entering the path of

your vehicle

• While making a right/left turn, when an

oncoming vehicle turns right/left in front

of your vehicle

• While steering into the direction of

oncoming traffic

• When passing an oncoming vehicle on a

narrow road

• When driving close to objects such as

walls or poles on a median

• When passing an oncoming vehicle

around a sharp curve

• When passing a vehicle which is making

a left/right turn

• When being passed by a vehicle

approaching from the left or right side in

front of your vehicle

• When making a left/right turn while a

vehicle is approaching from the left or

right side in front of your vehicle

• When passing an object on the side of the

road, such as a parked vehicle

• When passing an oncoming vehicle on a

S curve

• When there is an object that may be mis-

taken for a pedestrian, such as a utility

pole, tree, or pole on the roadside or at

the entrance of a curve

• When there is a bicycle or motorcycle on

the roadside at the entrance of a curve

• If the preceding vehicle is a bicycle or

motorcycle

●

The system may operate the pedestrian

alert unnecessarily if it detects the follow-

ing:

• Pedestrians on a sidewalk

• Bicycles and motorcycles

• Patterns or paint on the road, a wall,

median, billboard, etc. that may be mis-

taken for a pedestrian or bicyclist

■

Situations in which the system may not

operate properly

●

In some situations, such as the following,

a vehicle, pedestrian or bicyclist may not

be detected by the sensors, preventing

the system from operating properly:

• When a vehicle, pedestrian or bicyclist is

approaching your vehicle

• When your vehicle or a vehicle, pedes-

trian or bicyclist is wobbling

• If a vehicle, pedestrian or bicyclist makes

an abrupt maneuver (such as sudden

swerving, acceleration or deceleration)

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4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

• When your vehicle approaches a vehicle,

pedestrian or bicyclist rapidly

• When a vehicle, pedestrian or bicyclist is

not directly in front of your vehicle

• When a vehicle, pedestrian or bicyclist is

near a wall, fence, guardrail, manhole

cover, vehicle, steel plate on the road, etc.

• When a vehicle, pedestrian or bicyclist is

under a structure

• When part of a vehicle, pedestrian or

bicyclist is hidden by an object, such as

large baggage, an umbrella, or guardrail

• When there are many things which can

reflect the radio waves of the radar in the

vicinity (tunnels, truss bridges, gravel

roads, snow covered road that have

tracks, etc.)

• When there is an effect on the radio

waves to the radar that is installed on

another vehicle

• When multiple vehicles, pedestrians or

bicyclists are close together

• If the sun or other light is shining directly

on a vehicle, pedestrian, bicyclist or

guardrail ahead

• When a vehicle, pedestrian or bicyclist is

a shade of white and looks extremely

bright

• When a vehicle, pedestrian or bicyclist

appears to be nearly the same color or

brightness as its surroundings

• If a vehicles, pedestrians or bicyclists cuts

or suddenly emerges in front of your

vehicle

• When the front of your vehicle is hit by

water, snow, dust, etc.

• When a very bright light ahead, such as

the sun or the headlights of oncoming

traffic, shines directly into the front cam-

era

• When approaching the side or front of a

vehicle ahead

• If a vehicle ahead is a motorcycle

• If a vehicle ahead is narrow, such as a per-

sonal mobility vehicle

• If a preceding vehicle has a small rear

end, such as an unloaded truck

• If a preceding vehicle has a low rear end,

such as a low bed trailer

• If a vehicle ahead has extremely high

ground clearance

• If a vehicle ahead is carrying a load which

protrudes past its rear bumper

• If a vehicle ahead is irregularly shaped,

such as a tractor or side car

• If a vehicle ahead is a child sized bicycle,

a bicycle that is carrying a large load, a

bicycle ridden by more than one person,

or a uniquely shaped bicycle (bicycle with

a child seat, tandem bicycle, etc.)

• If a pedestrian/or the riding height of a

bicyclist ahead is shorter than approxi-

mately 3.2 ft. (1 m) or taller than approxi-

mately 6.5 ft. (2 m)

• If a pedestrian/bicyclist is wearing over-

sized clothing (a rain coat, long skirt,

etc.), making their silhouette obscure

• If a pedestrian is bending forward or

squatting or bicyclist is bending forward

• If a pedestrian/bicyclist is moving fast

• If a pedestrian is pushing a stroller, wheel-

chair, bicycle or other vehicle

• When driving in inclement weather such

as heavy rain, fog, snow or a sandstorm

• When driving through steam or smoke

• When the surrounding area is dim, such

as at dawn or dusk, or while at night or in

a tunnel, making a vehicle, pedestrian or

bicyclist appear to be nearly the same

Lexus LS500 (2022 year). Manual in english - page 12