Lexus LC500C (2022 year). Manual in english - page 12

 

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Lexus LC500C (2022 year). Manual in english - page 12

 

 

201

4-5. Using the driving support systems

4

Driving

the sensor, the system should return to nor-

mal.
Also, due to the sensor being frozen at low 

temperatures, a malfunction display may 

appear or an obstacle may not be detected. 

If the sensor thaws out, the system should 

return to normal.

If “Parking Assist Malfunction” or 

“Parking Assist Malfunction Visit Your 

Dealer” is displayed on the multi-infor-

mation display

There is a malfunction and the device may 

not be working properly.
Have the vehicle inspected by your Lexus 

dealer.

The following situations may occur 

during use.

• Depending on the shape of the object 

and other factors, the detection distance 

may shorten, or detection may be impos-

sible.

• Detection may be impossible if static 

objects draw too close to the sensor.

• There will be a short delay between static 

object detection and display (warning 

buzzer sounds). Even at low speeds, 

there is a possibility that the object will 

come within 1.0 ft. (30 cm) before the 

display is shown and the warning buzzer 

sounds.

• It might be difficult to hear the buzzer due 

to the volume of the audio system or air 

flow noise of the air conditioning system.

• It may be difficult to hear the sound of this 

system due to the buzzers of other sys-

tems.

Objects which the system may not prop-

erly detect

The shape of the object may prevent the 

sensor from detecting it. Pay particular 

attention to the following objects:

Wires, fences, ropes, etc.

Cotton, snow and other materials that 

absorb sound waves

Sharply-angled objects

Low objects

Tall objects with upper sections project-

ing outwards in the direction of your vehi-

cle

Situations in which the system may not 

operate properly

Certain vehicle conditions and the sur-

rounding environment may affect the ability 

of a sensor to correctly detect objects. Par-

ticular instances where this may occur are 

listed below.

There is dirt, snow, water drops or ice on 

a sensor. (Cleaning the sensors will 

resolve this problem.)

A sensor is frozen. (Thawing the area will 

resolve this problem.)

In especially cold weather, if a sensor is 

frozen the sensor display may be dis-

played abnormally, or objects, such as a 

wall, may not be detected.

When a sensor or the area around a sen-

sor is extremely hot or cold.

On an extremely bumpy road, on an 

incline, on gravel, or on grass.

When vehicle horns, vehicle detectors, 

motorcycle engines, air brakes of large 

vehicles, the clearance sonar of other 

vehicles or other devices which produce 

ultrasonic waves are near the vehicle.

A sensor is coated with a sheet of spray 

or heavy rain.

If objects draw too close to the sensor.

When a pedestrian is wearing clothing 

that does not reflect ultrasonic waves (ex. 

skirts with gathers or frills).

When objects that are not perpendicular 

to the ground, not perpendicular to the 

vehicle traveling direction, uneven, or 

waving are in the detection range.

Strong wind is blowing.

When driving in inclement weather such 

as fog, snow or a sandstorm.

When an object that cannot be detected 

is between the vehicle and a detected 

202

4-5. Using the driving support systems

object.

If an object such as a vehicle, motorcycle, 

bicycle or pedestrian cuts in front of the 

vehicle or runs out from the side of the 

vehicle.

If the orientation of a sensor has been 

changed due to a collision or other 

impact.

When equipment that may obstruct a 

sensor is installed, such as a towing eye-

let, bumper protector (an additional trim 

strip, etc.), bicycle carrier, or snow plow.

If the front of the vehicle is raised or low-

ered due to the carried load.

If the vehicle cannot be driven in a stable 

manner, such as when the vehicle has 

been in an accident or is malfunctioning.

When tire chains, a compact spare tire or 

an emergency tire puncture repair kit are 

used.

Situations in which the system may 

operate even if there is no possibility of a 

collision

In some situations, such as the following, the 

system may operate even though there is 

no possibility of a collision.

When driving on a narrow road.

When driving toward a banner, flag, low-

hanging branch or boom barrier (such as 

those used at railroad crossings, toll 

gates and parking lots).

When there is a rut or hole in the surface 

of the road.

When driving on a metal cover (grating), 

such as those used for drainage ditches.

When driving up or down a steep slope.

If a sensor is hit by a large amount of 

water, such as when driving on a flooded 

road.

There is dirt, snow, water drops or ice on 

a sensor. (Cleaning the sensors will 

resolve this problem.)

A sensor is coated with a sheet of spray 

or heavy rain.

When driving in inclement weather such 

as fog, snow or a sandstorm.

When strong winds are blowing.

When vehicle horns, vehicle detectors, 

motorcycle engines, air brakes of large 

vehicles, the clearance sonar of other 

vehicles or other devices which produce 

ultrasonic waves are near the vehicle.

If the front of the vehicle is raised or low-

ered due to the carried load.

If the orientation of a sensor has been 

changed due to a collision or other 

impact.

The vehicle is approaching a tall or 

curved curb.

Driving close to columns (H-shaped steel 

beams, etc.) in multi-story parking 

garages, construction sites, etc.

If the vehicle cannot be driven in a stable 

manner, such as when the vehicle has 

been in an accident or is malfunctioning.

On an extremely bumpy road, on an 

incline, on gravel, or on grass.

When tire chains, a compact spare tire or 

an emergency tire puncture repair kit are 

used.

203

4-5. Using the driving support systems

4

Driving

Customization

Some functions can be customized. 

(

P.363)

Certification

For vehicles sold in the U.S.A.

For vehicles sold in Canada

WARNING

Cautions regarding the use of the 

system

There is a limit to the degree of recogni-

tion 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.

To ensure the system can operate 

properly

Observe the following precautions. 

Failing to do so may result in the vehicle 

being unable to be driven safely and pos-

sibly cause an accident.

Do not damage the sensors, and 

always keep them clean.

Do not attach a sticker or install an 

electronic component, such as a back-

lit license plate (especially fluorescent 

type), fog lights, fender pole or wire-

less antenna near a radar sensor.

Do not subject the surrounding area of 

the sensor to a strong impact. If sub-

jected to an impact, have the vehicle 

inspected by your Lexus dealer. If the 

front or rear bumper needs to be 

removed/installed or replaced, con-

tact your Lexus dealer.

Do not modify, disassemble or paint 

the sensors.

Do not attach a license plate cover.

Keep your tires properly inflated.

204

4-5. Using the driving support systems

Detection range of the sensors

Approximately 3.3 ft. (100 cm)

Approximately 4.9 ft. (150 cm)

Approximately 2.0 ft. (60 cm)

The diagram shows the detection range of 
the sensors. Note that the sensors cannot 
detect obstacles that are extremely close 
to the vehicle.
The range of the sensors may change 
depending on the shape of the object etc.

Multi-information display, head-up 
display and Center Display

Sensors that detect an obstacle will illu-
minate continuously or blink.

WARNING

When to disable the function

In the following situations, disable the 

function as it may operate even though 

there is no possibility of a collision.

Failing to observe the warnings above.

A non-genuine Lexus suspension 

(lowered suspension, etc.) is installed.

Notes when washing the vehicle

Do not apply intensive bursts of water 

or steam to the sensor area.

Doing so may result in the sensor mal-

functioning.

When using a high pressure washer to 

wash the vehicle, do not spray the sen-

sors directly, as doing so may cause a 

sensor to malfunction.

When using steam to clean the vehi-

cle, do not direct steam too close to 

the sensors as doing so may cause a 

sensor to malfunction.

NOTICE

When using intuitive parking assist

In the following situations, the system 

may not function correctly due to a sen-

sor malfunction etc. Have the vehicle 

checked by your Lexus dealer.

The intuitive parking assist operation 

display flashes or shows continuously, 

and a beep sounds when no obstacles 

are detected.

If the bumper or grille collides with 

something.

If the display flashes or shows continu-

ously without beeping, except when 

the mute function has been turned on.

If a display error occurs, first check the 

sensor. 

If the error occurs even when there is 

no ice, snow or mud on the sensor, it is 

likely that the sensor is malfunctioning.

Sensor detection display, obsta-
cle distance

A
B
C

205

4-5. Using the driving support systems

4

Driving

*1

: The illustrations show the graphics on 

the Multi-information display, and differ 
from the graphics on the head-up dis-
play and Center Display. Depending on 
the distance of the obstacle, the sensor 

display on the Center Display illumi-
nates or blinks in various cycles, 
although the width of it does not 
change.

*2

: Multi-information display and head-up 

display

*3

: Center  Display

Buzzer operation and distance to 
an obstacle

A buzzer sounds when the sensors are 
operating.

The buzzer beeps faster as the vehi-
cle approaches an obstacle. When 
the vehicle comes within the follow-
ing distance of the obstacle, the 
buzzer sounds continuously:

• Front center sensors: Approximately 1.0 

ft. (30 cm)

• Corner sensors: Approximately 1.0 ft. 

(30 cm)

• Rear  center  sensors: Approximately 1.1 

ft. (35 cm)

When 2 or more obstacles are 
detected simultaneously, the buzzer 
system responds to the nearest 
obstacle. If one or both come within 
the above distances, the beep will 
repeat a long tone, followed by fast 
beeps.

Display

*1

Approximate distance 

to obstacle

(continuous

*2

 or 

blinking 

slowly

*3

)

Front center sensor: 
3.3 ft. (100 cm) to 1.6 ft. 
(50 cm)
Rear center sensor: 4.9 
ft. (150 cm) to 2.0 ft. 
(60 cm)

(continuous

*2

 or 

blinking

*3

)

Front center sensor: 1.6 
ft. (50 cm) to 1.3 ft. (40 
cm)
Rear center sensor: 2.0 
ft. (60 cm) to 1.5 ft. (45 
cm)
Front and rear corner 
sensor: 2.0 ft. (60 cm) 
to 1.5 ft. (45 cm)

(continuous

*2

 or 

blinking rap-

idly

*3

)

Front center sensor: 1.3 
ft. (40 cm) to 1.0 ft. (30 
cm)
Rear center sensor: 1.5 
ft. (45 cm) to 1.1 ft. (35 
cm)
Front and rear corner 
sensor: 1.5 ft. (45 cm) to 
1.0 ft. (30 cm)

(blinking

*2

 or 

continuous

*3

)

Front center sensor: 
Less than 1.0 ft. (30 cm)
Rear center sensor: 
Less than 1.1 ft. (35 cm)
Front and rear corner 
sensor: Less than 1.0 ft. 
(30 cm)

206

4-5. Using the driving support systems

Multi-information display

Turning the BSM function/RCTA function 

on/off.
The RCTA function is available when the 
BSM function is on.

Outside rear view mirror indicators

BSM function: 
When a vehicle is detected in a blind spot 
of the outside rear view mirrors or 
approaching rapidly from behind into a 
blind spot, the outside rear view mirror 
indicator on the detected side will illumi-
nate. If the turn signal lever is operated 
toward the detected side, the outside rear 
view mirror indicator will flash.
RCTA function: 
When a vehicle approaching from the right 
or left at the rear of the vehicle is detected, 
both outside rear view mirror indicators 
will flash.

BSM indicator/RCTA indicator

When the BSM function/RCTA function is 
turned on, the indicator comes on.

Monitor screen display (RCTA 
function only)

If a vehicle approaching from the right or 
left at the rear of the vehicle is detected, 
the RCTA icon (

P.211) for the detected 

side will be displayed on the monitor 
screen. This illustration shows an example 
of a vehicle approaching from the left at 
the rear of the vehicle.

RCTA buzzer (RCTA function 
only)

If a vehicle approaching from the right or 
left at the rear of the vehicle is detected, a 
buzzer will sound. The buzzer also sounds 
for approximately 1 second immediately 
after the BSM function is operated to turn 
the system on.

BSM (Blind Spot Monitor)

The Blind Spot Monitor uses the 
sensors installed behind the rear 
bumper. The system is intended to 
assist the driver check areas that 
are not easily visible. The system 
has the following 2 functions:

The BSM (Blind Spot Monitor) 
function

Assists the driver in making a deci-
sion when changing lanes

The RCTA (Rear Cross Traffic 
Alert) function

Assists the driver when backing up

These functions use same sensors.

System components

A

B

C

D

E

207

4-5. Using the driving support systems

4

Driving

1

Press 

 or 

 of the meter con-

trol switches, select 

.

2

Press 

 or 

 of the meter con-

trol switches, select “BSM”, and 
then press “OK”.

3

Press 

 or 

 of the meter con-

trol switches, select “BSM” or 
“RCTA”, and press “OK”.

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

Hearing the RCTA buzzer

The RCTA buzzer may be difficult to hear 

over loud noises, such as if the audio system 

volume is high.

When “Blind Spot Monitor Unavailable” 

is shown on the multi-information dis-

play

Water, snow, mud, etc., may be built up in 

the vicinity of the sensor area of bumper. 

(

P.207) Removing the water, snow, mud, 

etc., from the vicinity of the sensor area 

bumper should return it to normal.
Also, the sensor may not function normally 

when used in extremely hot or cold 

weather.

When “Blind Spot Monitor System Mal-

function” is shown on the multi-informa-

tion display

There may be a sensor malfunction or volt-

age abnormality. Have the vehicle 

inspected at your Lexus dealer.

Customization

Some functions can be customized. (Cus-

tomizable features: 

P.363)

Turning the BSM func-
tion/RCTA function on/off

WARNING

To ensure the system can operate 

properly

Blind Spot Monitor sensors are installed 

behind the left and right sides of the rear 

bumper respectively. Observe the fol-

lowing to ensure the Blind Spot Monitor 

can function correctly.

Keep the sensors and the surrounding 

areas on the rear bumper clean at all 

times. 

If a sensor or its surrounding area on 

the rear bumper is dirty or covered 

with snow, the Blind Spot Monitor may 

not operate and a warning message 

(

P.207) will be displayed. In this sit-

uation, clear off the dirt or snow and 

drive the vehicle with the operation 

conditions of the BSM function 

(

P.209) satisfied for approximately 

10 minutes. If the warning message 

does not disappear, have the vehicle 

inspected by your Lexus dealer.

Do not subject a sensor or its sur-

rounding area on the rear bumper to a 

strong impact. 

If a sensor is moved even slightly off 

position, the system may malfunction 

and vehicles may not be detected cor-

rectly. 

In the following situations, have your 

vehicle inspected by your Lexus 

dealer.

• A sensor or its surrounding area is 

subject to a strong impact.

• If the surrounding area of a sensor is 

scratched or dented, or part of them 

has become disconnected.

Do not disassemble the sensor.

208

4-5. Using the driving support systems

Operation of the BSM function

The BSM function uses radar sensors to detect the following vehicles traveling in 
adjacent lanes and advises the driver of the presence of such vehicles via the indi-
cators on the outside rear view mirrors.

Vehicles that are traveling in areas that are not visible using the outside rear 
view mirrors (the blind spots)

Vehicles that are approaching rapidly from behind in areas that are not visible 
using the outside rear view mirrors (the blind spots)

BSM function detection areas

The areas that vehicles can be detected in are outlined below.

WARNING

Do not attach stickers to the sensor or 

surrounding area on the rear bumper.

Do not modify the sensor or surround-

ing area on the rear bumper.

Do not paint the rear bumper any 

color other than an official Lexus color.

BSM function

A

B

209

4-5. Using the driving support systems

4

Driving

The range of each detection area is:

Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of the vehicle

*1

Approximately 3.3 ft. (1 m) forward of the rear bumper

Approximately 9.8 ft. (3 m) from the rear bumper

Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear bumper

*2

*1

: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side of the vehicle 

cannot be detected.

*2

: The greater the difference in speed between your vehicle and the detected vehicle is, 

the farther away the vehicle will be detected, causing the outside rear view mirror indi-
cator to illuminate or flash.

The BSM function is operational when

The BSM function is operational when all of 

the following conditions are met:

The BSM function is on.

The shift position is in a position other 

than R.

The vehicle speed is greater than 

approximately 10 mph (16 km/h).

The BSM function will detect a vehicle 

when

The BSM function will detect a vehicle pres-

ent in the detection area in the following sit-

uations:

A vehicle in an adjacent lane overtakes 

your vehicle.

You overtake a vehicle in adjacent lane 

slowly.

Another vehicle enters the detection 

area when it changes lanes.

Conditions under which the system will 

not detect a vehicle

The BSM function is not designed to detect 

the following types of vehicles and/or 

objects:

Small motorcycles, bicycles, pedestrians, 
etc.

*

Vehicles traveling in the opposite direc-

tion

Guardrails, walls, signs, parked vehicles 
and similar stationary objects

*

Following vehicles that are in the same 
lane

*

Vehicles traveling 2 lanes away from 
your vehicle

*

Vehicles which are being overtaken rap-
idly by your vehicle.

*

*

: Depending on the conditions, detection 

of a vehicle and/or object may occur.

Conditions under which the system may 

not function correctly

The BSM function may not detect vehi-

cles correctly in the following situations:

• When the sensor is misaligned due to a 

strong impact to the sensor or its sur-

rounding area

• When mud, snow, ice, a sticker, etc. is 

covering the sensor or surrounding area 

on the rear bumper

• When driving on a road surface that is 

wet with standing water during bad 

weather, such as heavy rain, snow, or fog

• When multiple vehicles are approaching 

with only a small gap between each vehi-

cle

• When the distance between your vehicle 

and a following vehicle is short

• When there is a significant difference in 

speed between your vehicle and the 

vehicle that enters the detection area

• When the difference in speed between 

your vehicle and another vehicle is 

changing

• When a vehicle enters a detection area 

traveling at about the same speed as your 

vehicle

A
B
C
D

210

4-5. Using the driving support systems

• As your vehicle starts from a stop, a vehi-

cle remains in the detection area

• When driving up and down consecutive 

steep inclines, such as hills, dips in the 

road, etc.

• When driving on roads with sharp bends, 

consecutive curves, or uneven surfaces

• When vehicle lanes are wide, or when 

driving on the edge of a lane, and the 

vehicle in an adjacent lane is far away 

from your vehicle

• When an accessory (such as a bicycle 

carrier) or towing eyelet is installed to the 

rear of the vehicle

• When there is a significant difference in 

height between your vehicle and the 

vehicle that enters the detection area

• Immediately after the BSM function is 

turned on

Instances of the BSM function unneces-

sarily detecting a vehicle and/or object 

may increase in the following situations:

• When the sensor is misaligned due to a 

strong impact to the sensor or its sur-

rounding area

• When the distance between your vehicle 

and a guardrail, wall, etc. that enters the 

detection area is short

• When driving up and down consecutive 

steep inclines, such as hills, dips in the 

road, etc.

• When vehicle lanes are narrow, or when 

driving on the edge of a lane, and a vehi-

cle traveling in a lane other than the adja-

cent lanes enters the detection area

• When driving on roads with sharp bends, 

consecutive curves, or uneven surfaces

• When the tires are slipping or spinning

• When the distance between your vehicle 

and a following vehicle is short

• When an accessory (such as a bicycle 

carrier) or towing eyelet is installed to the 

rear of the vehicle

Operation of the RCTA function

The RCTA function uses radar sensors to detect vehicles approaching from the 
right or left at the rear of the vehicle and alerts the driver of the presence of such 
vehicles by flashing the outside rear view mirror indicators and sounding a buzzer.

WARNING

Cautions regarding the use of the 

function

The driver is solely responsible for safe 

driving. Always drive safely, taking care 

to observe your surroundings.
The BSM function is a supplementary 

function which alerts the driver that a 

vehicle is in a blind spot of the outside 

rear view mirrors or is approaching rap-

idly from behind into a blind spot. Do not 

overly rely on the BSM function. As the 

function cannot judge if it is safe to 

change lanes, over reliance could lead to 

an accident resulting in death or serious 

injury.
As the system may not function correctly 

under certain conditions, the driver’s 

own visual confirmation of safety is nec-

essary.

RCTA function

211

4-5. Using the driving support systems

4

Driving

Approaching vehicles

Detection areas of approaching vehicles

RCTA icon display

When a vehicle approaching from the 
right or left at the rear of the vehicle is 
detected, the following will be dis-
played on the monitor screen.

RCTA function detection areas

The areas that vehicles can be detected in are outlined below.

The buzzer can alert the driver of 
faster vehicles approaching from far-

ther away.

A
B

Display

Content

A vehicle is approaching 
from the left at the rear of 
the vehicle

A vehicle is approaching 
from the right at the rear of 
the vehicle

Vehicles are approaching 
from both sides of the vehi-
cle

The RCTA function is mal-
functioning 
(

P.207)

Display

Content

212

4-5. Using the driving support systems

Example:

The RCTA function is operational when

The RCTA function operates when all of the 

following conditions are met:

The RCTA function is on.

The shift position is in R.

The vehicle speed is less than approxi-

mately 5 mph (8 km/h).

The approaching vehicle speed is 

between approximately 5 mph (8 km/h) 

and 18 mph (28 km/h).

Conditions under which the system will 

not detect a vehicle

The RCTA function is not designed to 

detect the following types of vehicles 

and/or objects:

Vehicles approaching from directly 

behind

Vehicles backing up in a parking space 

next to your vehicle

Vehicles that the sensors cannot detect 

due to obstructions

Guardrails, walls, signs, parked vehicles 
and similar stationary objects

*

Small motorcycles, bicycles, pedestrians, 
etc.

*

Vehicles moving away from your vehicle

Vehicles approaching from the parking 
spaces next to your vehicle

*

The distance between the sensor and 

approaching vehicle gets too close

*

: Depending on the conditions, detection 

of a vehicle and/or object may occur.

Situations in which the system may not 

operate properly

The RCTA function may not detect vehicles 

correctly in the following situations:

When the sensor is misaligned due to a 

strong impact to the sensor or its sur-

rounding area.

When mud, snow, ice, a sticker, etc.,is 

covering the sensor or surrounding area 

on the rear bumper.

When driving on a road surface that is 

wet with standing water during bad 

weather, such as heavy rain, snow, or fog.

When multiple vehicles are approaching 

with only a small gap between each vehi-

cle.

When a vehicle is approaching at high 

speed.

When equipment that may obstruct a 

sensor is installed, such as a towing eye-

let, bumper protector (an additional trim 

strip, etc.), bicycle carrier, or snow plow.

When backing up on a slope with a sharp 

change in grade.

When backing out of a sharp angle park-

ing spot.

Approaching vehi-

cle speed

 Approximate 

alert distance

18 mph (28 km/h) 

(fast)

65 ft. (20 m)

5 mph (8 km/h) 

(slow)

18 ft. (5.5 m)

A

213

4-5. Using the driving support systems

4

Driving

When towing a trailer.

When there is a significant difference in 

height between your vehicle and the 

vehicle that enters the detection area.

When a sensor or the area around a sen-

sor is extremely hot or cold.

If the suspension has been modified or 

tires of a size other than specified are 

installed.

If the front of the vehicle is raised or low-

ered due to the carried load.

When turning while backing up.

When a vehicle turns into the detection 

area.

Situations in which the system may 

operate even if there is no possibility of a 

collision

Instances of the RCTA function unneces-

sarily detecting a vehicle and/or object may 

increase in the following situations:

When the parking space faces a street 

and vehicles are being driven on the 

street.

When the distance between your vehicle 

and metal objects, such as a guardrail, 

wall, sign, or parked vehicle, which may 

reflect electrical waves toward the rear of 

the vehicle, is short.

When equipment that may obstruct a 

sensor is installed, such as a towing eye-

let, bumper protector (an additional trim 

strip, etc.), bicycle carrier, or snow plow.

When a vehicle passes by the side of your 

vehicle.

When a detected vehicle turns while 

approaching the vehicle.

When there are spinning objects near 

your vehicle such as the fan of an air con-

ditioning unit.

214

4-5. Using the driving support systems

When water is splashed or sprayed 

toward the rear bumper, such as from a 

sprinkler.

Moving objects (flags, exhaust fumes, 

large rain droplets or snowflakes, rain 

water on the road surface, etc.).

When the distance between your vehicle 

and a guardrail, wall, etc., that enters the 

detection area is short.

Gratings and gutters.

When a sensor or the area around a sen-

sor is extremely hot or cold.

If the suspension has been modified or 

tires of a size other than specified are 

installed.

If the front of the vehicle is raised or low-

ered due to the carried load.

ECB (Electronically Controlled 
Brake System)

The electronically controlled system 
generates braking force correspond-
ing to the brake operation

ABS (Anti-lock Brake System)

Helps to prevent wheel lock when the 
brakes are applied suddenly, or if the 
brakes are applied while driving on a 
slippery road surface

Brake assist

Generates an increased level of brak-
ing force after the brake pedal is 
depressed when the system detects a 
panic stop situation

VSC (Vehicle Stability Control)

Helps the driver to control skidding 
when swerving suddenly or turning on 
slippery road surfaces

TRAC (Traction Control)

Helps to maintain drive power and 
prevent the drive wheels from spinning 
when starting the vehicle or accelerat-

WARNING

Cautions regarding the use of the 

function

There is a limit to the degree of recogni-

tion 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. (

P.210)

To ensure the system can operate 

properly

P.207

Driving assist systems

To keep driving safety and perfor-
mance, the following systems oper-
ate automatically in response to 
various driving situations. Be 
aware, however, that these systems 
are supplementary and should not 
be relied upon too heavily when 
operating the vehicle.

Summary of the driving assist 
systems

215

4-5. Using the driving support systems

4

Driving

ing on slippery roads

Active Cornering Assist (ACA) (if 
equipped)

Helps to prevent the vehicle from drift-
ing to the outer side by performing 
inner wheel brake control when 
attempting to accelerate while turning

Hill-start assist control

Helps to reduce the backward move-
ment of the vehicle when starting on an 
uphill

EPS (Electric Power Steering)

Employs an electric motor to reduce 
the amount of effort needed to turn the 
steering wheel

AVS (Adaptive Variable Suspen-
sion System)

By independently controlling the 
damping force of the shock absorbers 
for each of the 4 wheels according to 
the road and driving conditions, this 
system helps riding comfort with supe-
rior vehicle stability, and helps good 
vehicle posture.
Also, the damping force changes 
depending on the selected driving 
mode. (

P.198)

VDIM (Vehicle Dynamics Inte-
grated Management)

Provides integrated control of the 
ABS, brake assist, TRAC, VSC, hill-
start assist control and EPS systems
Helps to maintain vehicle stability 
when swerving on slippery road sur-
faces by controlling the brakes, engine 
output, steering assist (if equipped), 
and steering ratio (if equipped)

Secondary Collision Brake

When the SRS airbag sensor detects a 
collision and the system operates, the 
brakes and brake lights are automati-
cally controlled to reduce the vehicle 
speed and help reduce the possibility 
of further damage due to a secondary 
collision

When the TRAC/VSC/ABS systems 

are operating

The slip indicator light will flash while the 

TRAC/VSC/ABS systems are operating.

Disabling the TRAC system

If the vehicle gets stuck in mud, dirt or snow, 

the TRAC system may reduce power from 

the engine to the wheels. Pressing the 

 switch to turn the system off may 

make it easier for you to rock the vehicle in 

order to free it.
To turn the TRAC system off, quickly press 

and release the 

 switch.

“Traction Control Turned Off” will be 

shown on the multi-information display. 

Press the 

 switch again to turn the 

system back on.

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4-5. Using the driving support systems

Turning off both TRAC and VSC sys-

tems

To turn the TRAC and VSC systems off, 

press and hold the 

 switch for more 

than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on 

and the “Traction Control Turned Off” will 
be shown on the multi-information display.

*

Press the 

 switch again to turn the 

system back on.

*

: PCS (Pre-Collision System) will also be 

disabled (only Pre-Collision warning is 
available). The PCS warning light will 
come on and a message will be displayed 
on the multi-information display. 
(

P.180)

When the message is displayed on the 

multi-information display showing that 

TRAC has been disabled even if the 

 switch has not been pressed

TRAC is temporary deactivated. If the 

information continues to show, contact your 

Lexus dealer.

Operating conditions of hill-start assist 

control

When the following four conditions are met, 

the hill-start assist control will operate:

The shift position is in a position other 

than P or N (when starting off for-

ward/backward on an upward incline).

The vehicle is stopped.

The accelerator pedal is not depressed.

The parking brake is not engaged.

Automatic system cancelation of hill-

start assist control

The hill-start assist control will turn off in any 

of the following situations:

The shift position is shifted to P or N.

The accelerator pedal is depressed.

The parking brake is engaged.

2 seconds at maximum elapsed after the 

brake pedal is released.

Sounds and vibrations caused by the 

ABS, brake assist, VSC, TRAC and hill-

start assist control systems

A sound may be heard from the engine 

compartment when the brake pedal is 

depressed repeatedly, when the engine is 

started or just after the vehicle begins to 

move. This sound does not indicate that a 

malfunction has occurred in any of these 

systems.

Any of the following conditions may 

occur when the above systems are oper-

ating. None of these indicates that a mal-

function has occurred.

• Vibrations may be felt through the vehi-

cle body and steering.

• A motor sound may be heard also after 

the vehicle comes to a stop.

ECB operating sound

ECB operating sound may be heard in the 

following cases, but it does not indicate that 

a malfunction has occurred.

Operating sound heard from the engine 

compartment when the brake pedal is 

operated.

Motor sound of the brake system heard 

from the front part of the vehicle when 

the driver’s door is opened.

Operating sound heard from the engine 

compartment when one or two minutes 

passed after the stop of the engine.

Active Cornering Assist operation 

sounds and vibrations

When the Active Cornering Assist is oper-

ated, operation sounds and vibrations may 

be generated from the brake system, but 

this is not a malfunction.

 

 

 

 

 

 

 

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