Lexus RX L (2022 year). Manual in english - page 17

382

4-5. Using the driving support systems

■

When the accelerator pedal is depressed excessively

■

When the vehicle moves in the unintended direction due to the wrong shift 
lever position



P.363

Types of sensors

WARNING

■

To ensure the Parking Support Brake 

can operate properly

Observe the following precautions 

regarding the sensors (



P.363). Failure 

to do so may cause a sensor to not oper-

ate properly, and may cause an accident.

●

Do not modify, disassemble or paint 

the sensors.

●

Do not replace a sensor with a part 

other than a genuine part.

●

Do not subject a sensor or its sur-

rounding area to a strong impact.

●

Do not damage the sensors, and 

always keep them clean.

383

4

4-5. Using the driving support systems

Driving

■

The Parking Support Brake function 

(static object) will operate when

The function will operate when the PKSB 

OFF indicator is not illuminated or flashing 

(



P.83, 84) and all of the following condi-

tions are met:

●

Engine output restriction control

• The Parking Support Brake is enabled.

• The vehicle speed is 15 km/h (9 mph) or 

less.

• There is a static object in the traveling 

direction of the vehicle and 2 to 4 m (6 to 

13 ft.) away.

• The Parking Support Brake determines 

that a stronger-than-normal brake opera-

tion is necessary to avoid a collision.

●

Brake control

• Engine output restriction control is oper-

ating.

• The Parking Support Brake determines 

that an immediate brake operation is nec-

essary to avoid a collision.

■

The Parking Support Brake function 

(static objects) will stop operating when

The function will stop operating if any of the 

following conditions are met:

●

Engine output restriction control

• The Parking Support Brake is disabled.

• The system determines that the collision 

has become avoidable with normal brake 

operation.

WARNING

■

Handling the suspension

Do not modify the suspension, as 

changes to the height or inclination of the 

vehicle may prevent the sensors from 

detecting objects correctly or cause the 

system to not operate or operate unnec-

essarily.

■

If the Parking Support Brake function 

(static objects) operates unnecessar-

ily, such as at a railroad crossing

In the event that the Parking Support 

Brake function (static objects) operates 

unnecessarily, such as at a railroad cross-

ing, brake control will be canceled after 

approximately 2 seconds, allowing you 

to proceed forward and leave the area, 

brake control can also be canceled by 

depressing the brake pedal. Depressing 

the accelerator pedal after brake control 

is canceled will allow you to proceed for-

ward and leave the area.

■

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 vehicle, 

do not direct steam too close to the 

sensors as doing so may cause a sen-

sor to malfunction.

■

When to disable the Parking Support 

Brake

In the following situations, disable the 

Parking Support Brake as the system 

may operate even though there is no 

possibility of a collision.

●

When inspecting the vehicle using a 

chassis roller, chassis dynamo or free 

roller

●

When loading the vehicle onto a boat, 

truck or other transport vessel

●

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 

lowered due to the carried load

●

When equipment that may obstruct a 

sensor is installed, such as a towing 

eyelet, bumper protector (an addi-

tional trim strip, etc.), bicycle carrier, or 

snow plow

●

When using an automatic car wash

384

4-5. Using the driving support systems

• The static object is no longer 2 to 4 m (6 

to 13 ft.) away from the vehicle or in the 

traveling direction of the vehicle.

●

Brake control

• The Parking Support Brake is disabled.

• Approximately 2 seconds have elapsed 

since the vehicle was stopped by brake 

control.

• The brake pedal is depressed after the 

vehicle is stopped by brake control.

• The static object is no longer 2 to 4 m (6 

to 13 ft.) away from the vehicle or in the 

traveling direction of the vehicle.

■

Re-enabling the Parking Support Brake 

function (static objects)



P.379

■

Detection range of the Parking Support 

Brake function (static objects)

The detection range of the Parking Support 

Brake function (static objects) differs from 

the detection range of the Lexus parking 

assist-sensor. (



P.367) Therefore, even if 

the Lexus parking assist-sensor detects an 

object and provides a warning, the Parking 

Support Brake function (static objects) may 

not start operating.

■

Objects that the Parking Support Brake 

function (static objects) may not detect

The sensors may not be able to detect cer-

tain objects, such as the following:

●

Pedestrian

●

Cotton cloth, snow, and other materials 

that are poor reflectors of ultrasonic 

waves

●

Objects which are not perpendicular to 

the ground, are not perpendicular to the 

traveling direction of the vehicle, are une-

ven or are waving

●

Low objects

●

Thin objects such as wires, fences, ropes 

and signposts

●

Objects that are extremely close to the 

bumper

●

Sharply-angled objects

●

Tall objects with upper sections project-

ing outwards in the direction of your vehi-

cle

■

Situation in which the Parking Support 

Brake function (static objects) may not 

operate

When driving with the shift lever in N.

■

Lexus parking assist-sensor buzzer

Regardless of whether the Lexus parking 

assist-sensor buzzer is enabled or not 

(



P.364), if the Parking Support Brake 

function (static objects) is enabled 

(



P.375), the front or rear sensors detect 

an object and brake control is performed, 

the Lexus parking assist-sensor buzzer will 

sound to notify the driver of the approxi-

mate distance to the object.

■

Situations in which the Parking Support 

Brake function (static objects) may 

operate even if there is no possibility of a 

collision

In some situations, such as the following, the 

Parking Support Brake function (static 

objects) may operate even though there is 

no possibility of a collision.

●

Vehicle surroundings

• When driving on a narrow road

• When driving on a gravel road or in an 

area with tall grass

• When driving toward a banner, flag, 

low-hanging branch or boom barrier 

(such as those used at railroad crossings, 

385

4

4-5. Using the driving support systems

Driving

toll gates and parking lots)

• When driving on a narrow path sur-

rounded by a structure, such as in a tun-

nel or on an iron bridge

• When parallel parking

• 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 on a steep slope

• If a sensor is hit by a large amount of 

water, such as when driving on a flooded 

road

●

Weather

• If a sensor is covered with ice, snow, dirt, 

etc. (when cleared, the system will return 

to normal)

• If heavy rain or water strikes a sensor

• When driving in inclement weather such 

as fog, snow or a sandstorm

• When strong winds are blowing

●

Other ultrasonic wave sources

• 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 a sticker or an electronic component, 

such as a backlit license plate (especially 

fluorescent type), fog lights, fender pole 

or wireless antenna is installed near a 

sensor

●

Changes in the vehicle posture

• If the vehicle is significantly tilted

• 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

■

Situations in which the Parking Support 

Brake function (static objects) may not 

operate properly

In some situations, such as the following, this 

function may not operate properly.

●

Weather

• When a sensor or the area around a sen-

sor is extremely hot or cold

• When strong winds are blowing

• If a sensor is covered with ice, snow, dirt, 

etc. (when cleared, the system will return 

to normal)

• If heavy rain or water strikes a sensor

• When driving in inclement weather such 

as fog, snow or a sandstorm

• When the sensor is frozen (Once the 

sensor thaws, the system will return to 

normal)

●

Vehicle surroundings

• When an object that cannot be detected 

is between the vehicle and a detected 

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

• The vehicle is approaching a tall or 

curved curb.

• On an extremely bumpy road, on an 

incline, on gravel, or on grass.

• If objects draw too close to the sensor.

●

Other ultrasonic waves sources

• 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 a sticker or an electronic component, 

such as a backlit license plate (especially 

fluorescent type), fog lights, fender pole 

or wireless antenna is installed near a 

386

4-5. Using the driving support systems

sensor

●

Changes in the vehicle posture

• If the vehicle is significantly tilted

• 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

• When equipment that may obstruct a 

sensor is installed, such as a bumper pro-

tector (an additional trim strip, etc.), bicy-

cle carrier, or snow plow

• If the suspension has been modified or 

tires of a size other than specified are 

installed

• If a sensor has been painted or covered 

with a sticker, etc.

387

4

4-5. Using the driving support systems

Driving

*

: If  equipped

This function will operate in situations such as the following if a vehicle is detected 
in the traveling direction of the vehicle.

■

When reversing, a vehicle is approaching and the brake pedal is not 
depressed, or is depressed late



P.357

Parking Support Brake function (rear-crossing vehicles)

*

If a rear radar sensor detects a vehicle approaching from the right or left at the 
rear of the vehicle and the system determines that the possibility of a collision 
is high, this function will perform brake control to reduce the likelihood of an 
impact with the approaching vehicle.

Examples of function operation

Types of sensors

WARNING

■

To ensure the Parking Support Brake 

function (rear-crossing vehicles) can 

operate properly

Observe the following precautions 

regarding the rear side radar sensors 

(



P.357). Failure to do so may cause a 

sensor to not operate properly, and may 

cause an accident.

●

Do not modify, disassemble or paint 

the sensors.

388

4-5. Using the driving support systems

■

The Parking Support Brake function 

(rear-crossing vehicles) will operate 

when

The function will operate when the PKSB 

OFF indicator is not illuminated or flashing 

(



P.83, 84) and all of the following condi-

tions are met:

●

Engine output restriction control

• The Parking Support Brake is enabled.

• The vehicle speed is 15 km/h (9 mph) or 

less.

• Vehicles which are approaching from the 

right or left at the rear of the vehicle at a 

traveling speed of less than approxi-

mately 8 km/h (5 mph)

• The shift lever is in R.

• The Parking Support Brake determines 

that a stronger than normal brake opera-

tion is necessary to avoid a collision with 

an approaching vehicle.

●

Brake control

• Engine  output  restriction control is oper-

ating.

• The Parking Support Brake determines 

that an emergency brake operation is 

necessary to avoid a collision with an 

approaching vehicle.

■

The Parking Support Brake function 

(rear-crossing vehicles) will stop operat-

ing when

The function will stop operating if any of the 

following conditions are met:

●

Engine output restriction control

• The Parking Support Brake is disabled.

• The collision becomes avoidable with 

normal brake operation.

• A vehicle is no longer approaching from 

the right or left at the rear of the vehicle.

●

Brake control

• The Parking Support Brake is disabled.

• Approximately 2 seconds have elapsed 

since the vehicle was stopped by brake 

control.

• The brake pedal is depressed after the 

vehicle is stopped by brake control.

• A vehicle is no longer approaching from 

the right or left at the rear of the vehicle.

■

Re-enabling the Parking Support Brake 

function (rear-crossing vehicles)



P.379

■

Detection area of the Parking Support 

Brake function (rear-crossing vehicles)

The detection area of the Parking Support 

Brake function (rear-crossing vehicles) dif-

fers from the detection area of the RCTA 

function (



P.372). Therefore, even if the 

RCTA function detects a vehicle and pro-

vides an alert, the Parking Support Brake 

function (rear-crossing vehicles) may not 

start operating.

■

Conditions under which the Parking 

Support Brake function (rear-crossing 

vehicles) will not detect a vehicle

The Parking Support Brake function 

(rear-crossing vehicles) 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

WARNING

●

Do not replace a rear side radar sen-

sor with a part other than a genuine 

part.

●

Do not damage the rear side radar 

sensors, and always keep the radar 

sensors and their surrounding area on 

the bumper clean.

●

If the area around a rear side radar 

sensor is subjected to an impact, the 

system may not operate properly due 

to a sensor malfunction. Have the vehi-

cle inspected by any authorized Lexus 

retailer or Lexus authorized repairer, 

or any reliable repairer.

389

4

4-5. Using the driving support systems

Driving

●

Vehicles which suddenly accelerate or 

decelerate near your vehicle

●

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

*

●

Objects which are extremely close to a 
radar sensor

*

●

Vehicles which are approaching from the 

right or left at the rear of the vehicle at a 

traveling speed of less than approxi-

mately 8 km/h (5 mph)

●

Vehicles which are approaching from the 

right or left at the rear of the vehicle at a 

traveling speed of more than approxi-

mately 24 km/h (15 mph)

*

: Depending on the conditions, detection 

of a vehicle and/or object may occur.

■

PKSB buzzer

If the Parking Support Brake is enabled and 

brake control is performed, a buzzer will 

sound to notify the driver.

■

Situations in which the system may 

operate even though there is no possi-

bility of a collision

In some situations such as the following, the 

Parking Support Brake function 

(rear-crossing vehicles) may operate even 

though there is no possibility of a collision.

●

When the parking space faces a street 

and vehicles are being driven on the 

street

●

When a detected vehicle turns while 

approaching the vehicle

●

When a vehicle passes by the side of your 

vehicle

●

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 there are spinning objects near 

your vehicle such as the fan of an air con-

ditioning unit

●

When water is splashed or sprayed 

toward the rear bumper, such as from a 

390

4-5. Using the driving support systems

sprinkler

■

Situations in which the Parking Support 

Brake function (rear-crossing vehicles) 

may not operate properly

In some situations, such as the following, the 

radar sensors may not detect an object and 

this function may not operate properly

●

Stationary objects

●

When a sensor or the area around a sen-

sor is extremely hot or cold

●

If the rear bumper is covered with ice, 

snow, dirt, etc.

●

When it is raining heavily or water strikes 

the vehicle

●

If the vehicle is significantly tilted

●

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 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

●

If an electronic component, such as a 

backlit license plate (especially fluores-

cent type), fog lights, fender pole or wire-

less antenna is installed near a radar 

sensor

●

If the orientation of a radar sensor has 

been changed

●

When multiple vehicles are approaching 

with only a small gap between each vehi-

cle

●

If a vehicle is approaching the rear of 

your vehicle rapidly

●

Situations in which the radar sensor may 

not detect a vehicle

• When a vehicle approaches from the 

right or left at the rear of the vehicle while 

you are turning while backing up

• When turning while backing up

• When backing out of a shallow angle 

parking spot

• When backing up on a slope with a sharp 

change in grade

• When a vehicle turns into the detection 

area

391

4

4-5. Using the driving support systems

Driving



Vehicles without Adaptive Variable 
Suspension System

1

Normal mode

Provides an optimal balance of fuel econ-
omy, quietness, and dynamic performance. 
Suitable for city driving.
Press the switch to change the driving 
mode to normal mode when Eco drive 
mode or sport mode is selected.

2

Eco drive mode

Helps the driver accelerate in an 
eco-friendly manner and improve fuel 
economy through moderate throttle char-
acteristics and by controlling the operation 
of the air conditioning system (heat-

ing/cooling).
When not in Eco drive mode, if the driving 
mode select switch is turned to the left, the 
Eco drive mode indicator will come on.

3

Sport mode

Controls the transmission and engine to 
provide quick, powerful acceleration. This 
mode also changes the steering feel, mak-
ing it suitable for when agile driving 
response is desired, such as when driving 
on roads with many curves.
When not in sport mode, if the driving 
mode select switch is turned to the right, 
the “Sport” indicator will comes on.



Vehicles with Adaptive Variable 
Suspension System

Except F SPORT models
F SPORT models

1

Normal mode/Custom mode

Normal mode and custom mode are 
selected by pressing the driving mode 
select switch. Each time the switch is 

Driving mode select switch

The driving modes can be selected 
to suit driving conditions.

Selecting a drive mode

A
B

392

4-5. Using the driving support systems

pressed, the driving mode changes 
between normal mode and custom mode. 
When custom mode is selected, the “Cus-
tom” indicator will be illuminated.
When Eco drive mode or sport mode is 
selected, pressing the switch changes the 
driving mode to normal mode.
• Normal  mode
Provides an optimal balance of fuel econ-
omy, quietness, and dynamic performance. 
Suitable for city driving.
• Custom  mode
Allows you to drive with the following func-
tions set to your preferred settings. Cus-
tom mode settings can only be changed on 
the drive mode customization display of 
the Center Display. (



P.592)

2

Eco drive mode

Helps the driver accelerate in an 
eco-friendly manner and improve fuel 
economy through moderate throttle char-
acteristics and by controlling the operation 
of the air conditioning system (heat-
ing/cooling).
When not in Eco drive mode, if the driving 
mode select switch is turned to the left, the 
Eco drive mode indicator will come on.

3

Sport mode

• Sport  S  mode

Controls the transmission and engine to 
provide quick, powerful acceleration. This 
mode is suitable for when agile driving 
response is desired, such as when driving 
on roads with many curves.
When not in Sport S mode, if the driving 
mode select switch is turned to the right, 
the “Sport S” indicator will come on.
• Sport S+ mode
Helps to ensure steering performance and 
driving stability by simultaneously con-
trolling the steering and suspension in 
addition to the transmission and engine. 
Suitable for sportier driving.
When in Sport S mode, if the driving mode 
select switch is turned to the right, the 
“Sport S+” indicator will come on.

■

Operation of the air conditioning sys-

tem in Eco drive mode

Eco drive mode controls the heating/cool-

ing operations and fan speed of the air con-

ditioning system to enhance fuel efficiency. 

To improve air conditioning performance, 

adjust the fan speed or turn off Eco drive 

mode.

■

Automatic deactivation of sport mode 

and custom mode

If the engine switch is turned off after driv-

ing in sport mode or custom mode, the 

drive mode will be changed to normal 

mode.

■

Driving mode pop-up display (12.3-inch 

display only)

When the driving mode is changed, the 

selected driving mode will be temporarily 

displayed on the side display. (



P.410)

Function

Setting

Powertrain

Normal

Power

Eco

Chassis

Normal

Sport

Air conditioning sys-
tem

Normal

Eco

393

4

4-5. Using the driving support systems

Driving

Press the switch.
The torque of the engine is distributed 
to the rear wheels to the maximum 
extent possible in accordance with 
driving conditions.
Pressing the switch again cancels 
all-wheel drive lock mode and returns 
the Dynamic Torque Control AWD 
system to normal mode. (



P.395)



RX300



RX350/RX350L

■

All-wheel drive lock mode can be oper-

ated when

The engine switch is in IGNITION ON 

mode.

■

Automatic release for the all-wheel 

drive lock mode

●

All-wheel drive lock mode is canceled 

when the brakes are applied to ensure 

the ABS and VSC systems operate effec-

tively.

●

All-wheel drive lock mode is canceled 

when the vehicle speed exceeds 40 

km/h (25 mph).

All-wheel drive lock switch 
(AWD models)

All-wheel drive lock mode can be 
used when a large amount of drive 
power needs to be applied to all the 
wheels, such as when the vehicle 
gets stuck in mud and you need to 
free it.

Using All-wheel drive lock mode

394

4-5. Using the driving support systems

*

: If  equipped

■

If “Exhaust Filter Full See Owner's Man-

ual” is shown on the multi-information 

display

●

The message may be displayed while 

high load driving with particulate matter 

accumulating.

●

Engine output (engine speed) is 

restricted when a certain amount of par-

ticulate matter accumulates, however, it is 

possible to drive the vehicle unless the 

malfunction indicator lamp comes on.

●

Particulate matter can accumulate more 

quickly if the vehicle is frequently driven 

short trips or at low speeds, or if the 

engine is regularly started in an 

extremely cold environment. Excessive 

accumulation of particulate matter can 

be prevented by periodically driving long 

distances continuously with intermittent 

releasing of the accelerator pedal, such 

as when driving on highways and free-

ways.

■

If the malfunction indicator lamp comes 

on or “Engine Maintenance Required 

Visit Your Dealer” is shown on the 

multi-information display

The amount of accumulated particulate 

matter has exceeded a certain level. Have 

the vehicle inspected by any authorized 

Lexus retailer or Lexus authorized repairer, 

or any reliable repairer immediately.

GPF (Gasoline Particulate 
Filter) system

*

The GPF system collects particu-
late matter in the exhaust gas by 
using an exhaust gas filter. The sys-
tem will operate to regenerate the 
filter automatically, depending on 
the vehicle conditions.

NOTICE

■

To prevent the GPF system from not 

operating properly

●

Do not use fuel other than the speci-

fied type

●

Do not modify the exhaust pipes

395

4

4-5. Using the driving support systems

Driving

■

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

■

VSC+ (Vehicle Stability Control+)

Provides cooperative control of the 
ABS, TRC, VSC and EPS.
Helps to maintain directional stability 
when swerving on slippery road sur-
faces by controlling steering perfor-
mance.

■

Trailer Sway Control (if equipped)

Helps the driver to control trailer sway 
by selectively applying brake pressure 
for individual wheels and reducing 
driving torque when trailer sway is 
detected.

■

TRC (Traction Control)

Helps to maintain drive power and pre-
vent the drive wheels from spinning 
when starting the vehicle or accelerat-
ing on slippery roads

■

Active Cornering Assist (ACA)

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

■

Dynamic Torque Control AWD 
system (AWD models)

Automatically switches from 
front-wheel drive to all-wheel drive 
(AWD) according to the driving condi-
tions, helping to ensure reliable han-
dling and stability. Examples of 
conditions where the system will switch 
to AWD are when cornering, going 
uphill, starting off or accelerating, and 
when the road surface is slippery due 
to snow, rain, etc.

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 oper-
ating the vehicle.

Summary of the driving assist 
systems

396

4-5. Using the driving support systems

■

Adaptive Variable Suspension Sys-
tem (if equipped)

Controls the damping force of the 
shock absorber of each wheel accord-
ing to the road and driving conditions, 
helping achieve a comfortable ride, 
excellent driveability and a high level of 
stability.
If Sport S+ mode is selected using the 
driving mode select switch, the damp-
ing force will become more suitable for 
sporty driving. (



P.391)

■

VDIM (Vehicle Dynamics Inte-
grated Management) (if equipped)

Provides integrated control of the 
ABS, brake assist, TRC, VSC, hill-start 
assist control and EPS systems
Helps to maintain vehicle stability when 
swerving on slippery road surfaces by 
controlling the brakes, engine output 
and steering assist.

■

Emergency brake signal

When the brakes are applied suddenly, 
the stop lights automatically flash to 
alert the vehicle behind.

■

The 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 TRC/VSC/Trailer Sway Con-

trol systems are operating

The slip indicator light will flash while the 

TRC/VSC/Trailer Sway Control systems 

are operating.

■

Disabling the TRC system

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

the TRC 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 TRC system off, quickly press 
and release the 

 switch.

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

Press the 

 switch again to turn the sys-

tem back on.

■

Turning off both TRC, VSC and Trailer 

Sway Control systems

To turn the TRC, VSC and Trailer Sway 

Control 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.

*

397

4

4-5. Using the driving support systems

Driving

Press the 

 switch again to turn the sys-

tem back on.

*

: On vehicles with PCS (Pre-Collision 

System), PCS 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.304)

■

When the message is displayed on the 

multi-information display showing that 
TRC has been disabled even if the 

 

switch has not been pressed

TRC is temporary deactivated. If the infor-

mation continues to show, contact any 

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

■

Operating conditions of hill-start assist 

control

When the following four conditions are met, 

the hill-start assist control will operate:

●

The shift lever is in a position other than P 

or N (when starting off forward/back-

ward 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 lever 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, Trailer Sway 

Control, TRC 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 vehicle 

body and steering.

• A motor sound may be heard also after 

the vehicle comes to a stop.

• The brake pedal may pulsate slightly after 

the ABS is activated.

• The brake pedal may move down slightly 

after the ABS is activated.

■

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.

■

EPS operation sound

When the steering wheel is operated, a 

motor sound (whirring sound) may be 

heard. This does not indicate a malfunction.

■

Reduced effectiveness of the EPS sys-

tem

The effectiveness of the EPS system is 

reduced to prevent the system from over-

heating when there is frequent steering 

input over an extended period of time. The 

steering wheel may feel heavy as a result. 

Should this occur, refrain from excessive 

steering input or stop the vehicle and turn 

the engine off. The EPS system should 

return to normal within 10 minutes.

■

Automatic reactivation of TRC, Trailer 

Sway Control and VSC systems

After turning the TRC, Trailer Sway Control 

and VSC systems off, the systems will be 

automatically re-enabled in the following 

situations:

●

When the engine switch is turned off

●

If only the TRC system is turned off, the 

TRC will turn on when vehicle speed 

increases

If both the TRC and VSC systems are