Lexus LC (2021 year). Manual in english - page 13

281

4

4-5. Using the driving support systems

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WARNING

O

Assisting the driver to judge proper 

following distance

The dynamic radar cruise control with 
full-speed range determines whether the 
following distance between the driver’s 
own vehicle and a designated vehicle 
traveling ahead is within a set range. It is 
not capable of making any other type of 
judgement. Therefore, it is absolutely 
necessary for the driver to remain vigi-
lant and to determine whether or not 
there is a possibility of danger in any 
given situation.

O

Assisting the driver to operate the 

vehicle

The dynamic radar cruise control with 
full-speed range has limited capability to 
prevent or avoid a collision with a vehicle 
traveling ahead. Therefore, if there is 
ever any danger, the driver must take 
immediate and direct control of the vehi-
cle and act appropriately in order to 
ensure the safety of all involved.

Q

Situations unsuitable for dynamic 

radar cruise control with full-speed 

range

Do not use dynamic radar cruise control 

with full-speed range in any of the follow-

ing situations.
Doing so may result in inappropriate 

speed control and could cause an acci-

dent resulting in death or serious injury.

O

Roads where there are pedestrians, 

cyclists, etc.

O

In heavy traffic

O

On roads with sharp bends

O

On winding roads

O

On slippery roads, such as those cov-

ered with rain, ice or snow

O

On steep downhills, or where there 

are sudden changes between sharp up 

and down gradients 

Vehicle speed may exceed the set 

speed when driving down a steep hill.

O

At entrances to freeways and highways

O

When weather conditions are bad 

enough that they may prevent the sen-

sors from detecting correctly (fog, 

snow, sandstorm, heavy rain, etc.)

O

When there is rain, snow, etc. on the 

front surface of the radar sensor or 

front camera

O

In traffic conditions that require fre-

quent repeated acceleration and 

deceleration

O

During emergency towing

O

When an approach warning buzzer is 

heard often

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4-5. Using the driving support systems

This mode employs a radar sensor to detect the presence of vehicles up to approx-
imately 100 m (328 ft.) ahead, determines the current vehicle-to-vehicle following 
distance, and operates to maintain a suitable following distance from the vehicle 
ahead.

Note that vehicle-to-vehicle distance will close in when traveling on long downhill slopes.

Example of constant speed cruising 
When there are no vehicles ahead

The vehicle travels at the speed set by the driver. The desired vehicle-to-vehicle distance 
can also be set by operating the vehicle-to-vehicle distance switch.

Example of deceleration cruising and follow-up cruising 
When a preceding vehicle driving slower than the set speed appears

When a vehicle is detected running ahead of you, the system automatically decelerates 
your vehicle. When a greater reduction in vehicle speed is necessary, the system applies 
the brakes (the stop lights will come on at this time). The system will respond to changes in 
the speed of the vehicle ahead in order to maintain the vehicle-to-vehicle distance set by 
the driver. Approach warning warns you when the system cannot decelerate sufficiently to 
prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you stops, your vehicle will also stop (vehicle is stopped by sys-
tem control). After the vehicle ahead starts off, pressing the “+RES” switch or depressing 
the accelerator pedal will resume follow-up cruising.

Example of acceleration 
When there are no longer any preceding vehicles driving slower than the set 
speed

The system accelerates until the set speed is reached. The system then returns to constant 

Driving in vehicle-to-vehicle distance control mode

A

B

C

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4-5. Using the driving support systems

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speed cruising.

1

Press the cruise control main switch 
to activate the cruise control.

Radar cruise control indicator will come on 

and a message will be displayed on the 

multi-information display.
Press the switch again to deactivate the 

cruise control.
If the cruise control main switch is pressed 

and held for 1.5 seconds or more, the sys-

tem turns on in constant speed control 

mode. (



P.286)

2

Accelerate or decelerate, with 
accelerator pedal operation, to the 
desired vehicle speed (at or above 
approximately 50 km/h [30 mph]) 
and press the “-SET” switch to set 
the speed.

Cruise control “SET” indicator will come 

on.
The vehicle speed at the moment the 

switch is released becomes the set speed.
If the switch is operated while the vehicle 

speed is below approximately 50 km/h 

(30 mph) and a preceding vehicle is pres-

ent, the set speed will be adjusted to 

approximately 50 km/h (30 mph).

To change the set speed, operate the 
“+RES” or “-SET” switch until the 
desired set speed is displayed.

1

Increases the speed 
(Except when the vehicle has been 
stopped by system control in vehi-
cle-to-vehicle distance control 
mode)

2

Decreases the speed

Fine adjustment: Press the switch.
Large adjustment: Press and hold the 
switch to change the speed, and release 
when the desired speed is reached.

In the vehicle-to-vehicle distance con-
trol mode, the set speed will be 
increased or decreased as follows:

Setting the vehicle speed (vehi-
cle-to-vehicle distance control 
mode)

Adjusting the set speed

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4-5. Using the driving support systems



For Europe

Fine adjustment: By 5 km/h (3.1 mph)

*1

 or 

5 mph (8 km/h)

*2

 each time the switch is 

pressed
Large adjustment: Increases or decreases 
in 5 km/h (3.1 mph)

*1

or 5 mph (8 km/h)

*2

 

increments for as long as the switch is held



Except for Europe

Fine adjustment: By 1 km/h (0.6 mph)

*1

 or 1 

mph (1.6 km/h)

*2

 each time the switch is 

pressed
Large adjustment: Increases or decreases 
in 5 km/h (3.1 mph)

*1

 or 5 mph (8 km/h)

*2

 

increments for as long as the switch is held

In the constant speed control mode 
(



P.286), the set speed will be 

increased or decreased as follows:

Fine adjustment: By 1 km/h (0.6 mph)

*1

 or 1 

mph (1.6 km/h)

*2

 each time the switch is 

pressed
Large adjustment: The speed will continue 
to change while the switch is held.

*1

: When the set speed is shown in “km/h”

*2

: When the set speed is shown in “MPH”

Pressing the switch changes the vehi-
cle-to-vehicle distance as follows:

1

Long

2

Medium

3

Short

The vehicle-to-vehicle distance is set auto-
matically to long mode when the engine 
switch <power switch> is turned to IGNI-
TION ON mode <ON mode>.
If a vehicle is running ahead of you, the pre-
ceding vehicle mark 

 will also be dis-

played.

Select a distance from the table below. 
Note that the distances shown corre-
spond to a vehicle speed of 80 km/h 
(50 mph). Vehicle-to-vehicle distance 
increases/decreases in accordance 
with vehicle speed. When the vehicle is 
stopped by system control, the vehicle 
stops at a certain vehicle-to-vehicle 
distance depending on the situation.

Changing the vehicle-to-vehicle 
distance (vehicle-to-vehicle dis-
tance control mode)

Vehicle-to-vehicle distance set-
tings (vehicle-to-vehicle dis-
tance control mode)

A

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After the vehicle ahead of you starts 
off, press the “+RES” switch.
Your vehicle will also resume follow-up 
cruising if the accelerator pedal is 
depressed after the vehicle ahead of 
you starts off.

1

Pressing the cancel switch cancels 
the speed control.

The speed control is also canceled when 
the brake pedal is depressed. 
(When the vehicle has been stopped by 
system control, depressing the brake pedal 
does not cancel the setting.)

2

Pressing the “+RES” switch 
resumes the cruise control and 
returns vehicle speed to the set 
speed.

However, when a vehicle ahead is not 
detected, cruise control does not resume 
when the vehicle speed is approximately 
40 km/h (25 mph) or less.

When your vehicle is too close to a 
vehicle ahead, and sufficient automatic 
deceleration via the cruise control is 
not possible, the display will flash and 
the buzzer will sound to alert the driver. 
An example of this would be if another 
driver cuts in front of you while you are 
following a vehicle. Depress the brake 
pedal to ensure an appropriate vehi-

Distance options

Vehicle-to-vehicle 

distance

Long

Approximately 50 

m (160 ft.)

Medium

Approximately 40 

m (130 ft.)

Short

Approximately 30 

m (100 ft.)

Resuming follow-up cruising 
when the vehicle has been 
stopped by system control (vehi-
cle-to-vehicle distance control 
mode)

Canceling and resuming the 
speed control

Approach warning (vehicle-to-
vehicle distance control mode)

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4-5. Using the driving support systems

cle-to-vehicle distance.

Q

Warnings may not occur when

In the following instances, warnings 
may not occur even when the vehicle-
to-vehicle distance is small.



When the speed of the preceding 
vehicle matches or exceeds your 
vehicle speed



When the preceding vehicle is trav-
eling at an extremely slow speed



Immediately after the cruise control 
speed was set



When depressing the accelerator 
pedal

When constant speed control mode is 
selected, your vehicle will maintain a 
set speed without controlling the vehi-
cle-to-vehicle distance. Select this 
mode only when vehicle-to-vehicle dis-
tance control mode does not function 
correctly due to a dirty radar sensor, 
etc.

1

With the cruise control off, press 
and hold the cruise control main 
switch for 1.5 seconds or more.

Immediately after the switch is pressed, the 

radar cruise control indicator will come on. 

Afterwards, it switches to the cruise con-

trol indicator.
Switching to constant speed control mode 

is only possible when operating the switch 

with the cruise control off.

2

Accelerate or decelerate, with 
accelerator pedal operation, to the 
desired vehicle speed (at or above 
approximately 40 km/h [25 mph]) 
and press the “-SET” switch to set 
the speed.

Cruise control “SET” indicator will come 

on.
The vehicle speed at the moment the 

switch is released becomes the set speed.
Adjusting the speed setting: 



P.283

Canceling and resuming the speed setting: 



P.285

Q

Dynamic radar cruise control with full-

speed range can be set when

O

The shift position is in D.

Selecting constant speed con-
trol mode

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O

LC500: Range 4 or higher of D has been 

selected by using the paddle shift switch.

O

Vehicle speed is at or above approxi-

mately 50 km/h (30 mph).

However, when a preceding vehicle is 

detected, the dynamic radar cruise con-

trol with full-speed range can be set even 

if the vehicle speed is below approxi-

mately 50 km/h (30 mph).

Q

Accelerating after setting the vehicle 

speed

The vehicle can accelerate by operating the 

accelerator pedal. After accelerating, the 

set speed resumes. However, during vehi-

cle-to-vehicle distance control mode, the 

vehicle speed may decrease below the set 

speed in order to maintain the distance to 

the preceding vehicle.

Q

When the vehicle stops while follow-up 

cruising

O

Pressing the “+RES” switch while the 

vehicle ahead stops will resume follow-up 

cruising if the vehicle ahead starts off 

within approximately 3 seconds after the 

switch is pressed.

O

If the vehicle ahead starts off within 3 sec-

onds after your vehicle stops, follow-up 

cruising will be resumed.

Q

Automatic cancelation of vehicle-to-

vehicle distance control mode

Vehicle-to-vehicle distance control mode is 

automatically canceled in the following situ-

ations:

O

Actual vehicle speed falls at or below 

approximately 40 km/h (25 mph) when 

there are no vehicles ahead.

O

The preceding vehicle leaves the lane 

when your vehicle is following at a vehicle 

speed at or below approximately 40 

km/h (25 mph). Otherwise, the sensor 

can not properly detect the vehicle. 

(“CRUISE NOT AVAILABLE No Pre-

ceding Vehicles” is displayed on the 

multi-information display)

O

VSC is activated.

O

TRC is activated for a period of time.

O

When the VSC or TRC system is turned 

off.

O

When snow mode is set.

O

The sensor cannot detect correctly 

because it is covered in some way.

O

Pre-collision braking is activated.

O

The parking brake is operated.

O

The vehicle is stopped by system control 

on a steep incline.

O

The following are detected when the 

vehicle has been stopped by system con-

trol:

• The driver is not wearing a seat belt.

• The driver’s door is opened.

• The vehicle has been stopped for about 3 

minutes

If vehicle-to-vehicle distance control mode 
is automatically canceled for any other rea-
son, there may be a malfunction in the sys-
tem. Contact any authorized Lexus retailer 
or Lexus authorized repairer, or any reliable 
repairer.

Q

Automatic cancelation of constant 

speed control mode

Constant speed control mode is automati-

cally canceled in the following situations:

O

Actual vehicle speed is more than 

approximately 16 km/h (10 mph) below 

the set vehicle speed.

O

Actual vehicle speed falls below approxi-

mately 40 km/h (25 mph).

O

VSC is activated.

O

TRC is activated for a period of time.

O

When the VSC or TRC system is turned 

off.

O

Pre-collision braking is activated.

If constant speed control mode is automati-
cally canceled for any other reason, there 
may be a malfunction in the system. Con-
tact any authorized Lexus retailer or Lexus 
authorized repairer, or any reliable repairer.

Q

Brake system operation sound

If the brakes are applied automatically while 

the vehicle is in vehicle-to-vehicle distance 

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4-5. Using the driving support systems

control mode, a brake system operation 

sound may be heard. This does not indicate 

a malfunction.

Q

If “Radar Cruise Control Unavailable” is 

shown on the multi-information display

The radar cruise control system cannot be 

used temporarily. Use the system when it 

becomes available again.

Q

Warning messages and buzzers for 

dynamic radar cruise control with full-

speed range

Warning messages and buzzers are used to 

indicate a system malfunction or to inform 

the driver of the need for caution while driv-

ing. If a warning message is shown on the 

multi-information display, read the message 

and follow the instructions.

Q

When the sensor may not be correctly 

detecting the vehicle ahead

In the case of the following and depending 

on the conditions, operate the brake pedal 

when deceleration of the system is insuffi-

cient or operate the accelerator pedal 

when acceleration is required.
As the sensor may not be able to correctly 

detect these types of vehicles, the approach 

warning (



P.285) may not be activated.

O

Vehicles that cut in suddenly

O

Vehicles traveling at low speeds

O

Vehicles that are not moving in the same 

lane

O

Vehicles with small rear ends (trailers 

with no load on board, etc.)

O

Motorcycles traveling in the same lane

O

When water or snow thrown up by the 

surrounding vehicles hinders the detect-

ing of the sensor

O

When your vehicle is pointing upwards 

(caused by a heavy load in the luggage 

compartment, etc.)

O

Preceding vehicle has an extremely high 

ground clearance

Q

Conditions under which the vehicle-to-

vehicle distance control mode may not 

function correctly

In the case of the following conditions, 

operate the brake pedal (or accelerator 

pedal, depending on the situation) as nec-

essary.
As the sensor may not be able to correctly 

detect vehicles ahead, the system may not 

operate properly.

O

When the road curves or when the lanes 

are narrow

O

When steering wheel operation or your 

position in the lane is unstable

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O

When the vehicle ahead of you deceler-

ates suddenly

O

When driving on a road surrounded by a 

structure, such as in a tunnel or on a 

bridge

O

While the vehicle speed is decreasing to 

the set speed after the vehicle acceler-

ates by depressing the accelerator pedal

*

: If  equipped

Q

Meter display

Set speed

Indicators

Q

Operation switches

“+RES” switch

Cruise control main switch

“-SET” switch

Cruise control

*

Use the cruise control to maintain a 
set speed without depressing the 
accelerator pedal.
Use the cruise control on freeways 
and highways.

System components

A
B

A
B
C

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4-5. Using the driving support systems

Cancel switch

1

Press the cruise control main switch 
to activate the cruise control.

Cruise control indicator will come on.

Press the switch again to deactivate the 

cruise control.

2

Accelerate or decelerate the vehi-
cle to the desired speed, and press 
the “-SET” switch to set the speed.

Cruise control “SET” indicator will come 

on.

The vehicle speed at the moment the 

switch is released becomes the set speed.

To change the set speed, operate the 
“+RES” or “-SET” switch until the 
desired set speed is obtained.

1

Increases the speed

2

Decreases the speed

Fine adjustment: Press the switch in the 
desired direction.
Large adjustment: Press and hold switch.
The set speed will be increased or 
decreased as follows:
Fine adjustment: By approximately 1 km/h 
(0.6 mph) each time the switch is pressed.
Large adjustment: The set speed can be 
increased or decreased continually until 
the switch is released.

1

Pressing the cancel switch cancels 
the constant speed control.

The speed setting is also canceled when 
the brakes are applied.

2

Pressing the “+RES” switch 
resumes the constant speed con-

Setting the vehicle speed

Adjusting the set speed

D

Canceling and resuming the 
constant speed control

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4-5. Using the driving support systems

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trol.

Resuming is available when the vehicle 
speed is more than approximately 40 
km/h (25 mph).

Q

Cruise control can be set when

O

The shift position is in D.

O

Vehicle speed is above approximately 40 

km/h (25 mph).

Q

Accelerating after setting the vehicle 

speed

O

The vehicle can be accelerated normally. 

After acceleration, the set speed 

resumes.

O

Even without canceling the cruise con-

trol, the set speed can be increased by 

first accelerating the vehicle to the 

desired speed and then pressing the -

/SET switch to set the new speed.

Q

Automatic cruise control cancelation

Cruise control will stop maintaining the 

vehicle speed in any of the following situa-

tions.

O

Actual vehicle speed falls more than 

approximately 16 km/h (10 mph) below 

the preset vehicle speed.

O

Actual vehicle speed is below approxi-

mately 40 km/h (25 mph).

O

VSC is activated.

O

TRC is activated for a period of time.

O

When the VSC or TRC system is turned 

off.

Q

If the warning message for the cruise 

control is shown on the multi-informa-

tion display

Press the cruise control main switch once to 

deactivate the system, and then press the 

switch again to reactivate the system.

If the cruise control speed cannot be set or 

if the cruise control cancels immediately 

after being activated, there may be a mal-

function in the cruise control system. Have 

the vehicle inspected by authorized Lexus 

retailer or Lexus authorized repairer, or any 

reliable repairer.

WARNING

Q

To avoid operating the cruise control 

by mistake

Switch the cruise control off using the 

cruise control main switch when not in 

use.

Q

Situations unsuitable for cruise con-

trol

Do not use cruise control in any of the 

following situations.

Doing so may result in loss of control and 

could cause an accident resulting in 

death or serious injury.

O

In heavy traffic

O

On roads with sharp bends

O

On winding roads

O

On slippery roads, such as those cov-

ered with rain, ice or snow

O

On steep downhills

Vehicle speed may exceed the set 

speed when driving down a steep hill.

O

During emergency towing

292

4-5. Using the driving support systems

1

Normal mode/Custom mode

Normal mode and custom mode are 
selected by pressing the driving mode 
select switch. Each time the switch is 
pressed, the driving mode changes 
between normal mode and custom mode. 
When custom mode is selected, the “Cus-
tom” indicator comes on.
Press the switch to change the driving 
mode to normal mode when not in normal 
mode.
• Normal mode
Provides an optimal balance of fuel econ-
omy, quietness, and dynamic performance. 
Suitable for city driving.
When the shift position is in D, an appropri-

ate gear for sporty driving may automati-
cally be selected according to driver 
performance and driving conditions.
• Custom mode
Allows you to drive with the power train, 
chassis and air conditioning system func-
tions set to your preferred settings.
Custom mode settings can only be 
changed on the drive mode customization 
display of Center Display. (



P.337)

2

Comfort mode

By controlling the suspension, riding com-
fort is further enhanced. Suitable for city 
driving.
When not in comfort mode and the driving 
mode select switch is turned forward, the 
“Comfort” indicator comes on.

3

Eco drive mode

Helps the driver accelerate in an eco-
friendly manner and improve fuel economy 
through moderate throttle characteristics 
and by controlling the operation of the air 
conditioning system (heating/cooling).
When in comfort mode, if the driving mode 
select switch is turned forward, the “Eco” 
indicator comes on.

4

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 backward, the 
“Sport S” indicator comes on.
• SPORT  S+  mode
Provides earlier downshift timing than 
SPORT S mode in order to maintain a high 
engine speed and provides faster gear 
changes. This mode also changes the 

Driving mode select switch

The driving modes can be selected 
to suit driving condition.

Selecting the driving mode

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4-5. Using the driving support systems

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steering feel, suspension control and 
VDIM control, making it suitable for pow-
erful sporty driving.
When in SPORT S mode, if the driving 
mode select switch is turned backward, the 
“Sport S+” indicator comes on.

Q

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, 

perform the following operations:

O

Turn off eco air conditioning mode (if 

equipped) (



P.345)

O

Adjust the fan speed (



P.343, 345)

O

Turn off Eco drive mode

Q

Automatic deactivation of sport mode 

and custom mode

If the engine switch <power switch> is 

turned off after driving in sport mode or 

custom mode, the drive mode will be 

changed to normal mode.

Q

Driving mode pop-up display

When the driving mode is changed, the 

selected driving mode will be temporarily 

displayed on the side display. (



P.339)

For custom mode, select “Setting” on the 

display to customize the driving mode.

Q

Types of sensors

Front corner sensors

Front center sensors

Rear corner sensors

Rear center sensors

Q

Display

When the sensors detect an obstacle, a 
graphic is shown on the multi-informa-
tion display, head-up display and Cen-
ter Display depending on the position 
and distance to the obstacle.



Multi-information display and head-

Lexus parking assist-sensor

The distance from your vehicle to 
nearby obstacles when parallel 
parking or maneuvering into a 
garage is measured by the sensors 
and communicated via the multi-
information display, head-up dis-
play (if equipped), Center Display 
and a buzzer. Always check the sur-
rounding area when using this sys-
tem.

System components

A
B
C
D

294

4-5. Using the driving support systems

up display

Front corner sensor detection

Front center sensor detection

Rear corner sensor detection

Rear center sensor detection



Center Display

A graphic is shown when the Lexus park-
ing assist monitor is displayed (insert dis-
play)
A simplified image is displayed on the 
upper right corner of Center Display when 
an obstacle is detected.

1

Press 

 or 

 of the meter con-

trol switches, and select 

.

2

Press 

 or 

 of the meter con-

trol switches, and select “Parking 
Assist”, and press “OK”.

When the Lexus parking assist-sensor 
is turned on, the Lexus parking assist-
sensor indicator comes on to inform 
the driver that the system is opera-
tional.

Q

The Lexus parking assist-sensor can be 

operated when

O

Front center sensors:

• The engine switch <power switch> is in 

IGNITION ON mode <ON mode>.

• The shift position is in a position other 

than P or R.

• The vehicle speed is less than about 10 

km/h (6 mph).

O

Front corner sensors:

• The engine switch <power switch> is in 

IGNITION ON mode <ON mode>.

• The shift position is in a position other 

than P.

• The vehicle speed is less than about 10 

km/h (6 mph). 

(At any speed when the shift position is in 

R)

O

Rear corner and rear center sensors:

• The engine switch <power switch> is in 

IGNITION ON mode <ON mode>.

• The shift position is in R.

Q

Muting the buzzer sound

O

To mute the buzzer sound:

The buzzer can be temporarily muted by 

pressing “OK” of the meter control switches 

while an obstacle detection display is shown 

on the multi-information display.

O

To cancel the mute:

Mute will be automatically canceled in the 

following situations.

• When the shift position is changed 

(except shifting from D to N, or N to D)

• When the vehicle speed has reached or 

exceeded 10 km/h (6 mph) with the shift 

position in D

Turning Lexus parking assist-sen-
sor on/off

A
B
C
D

295

4

4-5. Using the driving support systems

Dr

ivin
g

• When the Lexus parking assist-sensor is 

turned off once and turned on again

• When the engine switch <power switch> 

is turned off once and turned to IGNI-

TION ON mode <ON mode> again

Q

If “Clean Parking Assist Sensor” is dis-

played on the multi-information display

A sensor may be dirty or covered with snow 

or ice. In such cases, if it is removed from 

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.

Q

If “Parking Assist Malfunction” or “Park-

ing 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 any autho-

rized Lexus retailer or Lexus authorized 

repairer, or any reliable repairer.

Q

Sensor detection information

O

The sensor’s detection areas are limited 

to the areas around the vehicle’s front and 

rear bumpers.

O

Certain vehicle conditions and the sur-

rounding environment may affect the 

ability of the sensor to correctly detect 

obstacles. Particular instances where this 

may occur are listed below.

• There is dirt, snow or ice on the sensor. 

(Wiping the sensors will resolve this 

problem.)

• The sensor is frozen. (Thawing the area 

will resolve this problem.)

In especially cold weather, if a sensor is 

frozen the screen may show an abnormal 

display, or obstacles may not be 

detected.

• The sensor is covered in any way.

• The vehicle is leaning considerably to one 

side.

• On an extremely bumpy road, on an 

incline, on gravel, or on grass.

• The vicinity of the vehicle is noisy due to 

vehicle horns, motorcycle engines, air 

brakes of large vehicles, or other loud 

noises producing ultrasonic waves.

• There is another vehicle equipped with 

parking assist sensor in the vicinity.

• The sensor is splashed with water or 

heavy rain.

• The vehicle is equipped with a fender 

pole or wireless antenna.

• Towing eyelets are installed.

• The bumper or sensor receives a strong 

impact.

• The vehicle is approaching a tall or 

curved curb.

• In harsh sunlight or intense cold weather.

• The area directly under the bumpers is 

not detected.

• If obstacles draw too close to the sensor.

• A non-genuine Lexus suspension (low-

ered suspension etc.) is installed.

• People may not be detected if they are 

wearing certain types of clothing.

In addition to the examples above, there are 
instances in which, because of their shape, 
signs and other objects may be judged by 
the sensor to be closer than they are.

O

The shape of the obstacle may prevent 

the sensor from detecting it. Pay particu-

lar attention to the following obstacles:

• Wires, fences, ropes, etc.

• Cotton, snow and other materials that 

absorb sound waves

• Sharply-angled objects

• Low  obstacles

• Tall obstacles with upper sections pro-

jecting outwards in the direction of your 

vehicle

O

The following situations may occur 

during use.

• Depending on the shape of the obstacle 

and other factors, the detection distance 

may shorten, or detection may be impos-

sible.

• Obstacles may not be detected if they 

are too close to the sensor.

• There will be a short delay between 

obstacle detection and display. Even at 

slow speeds, there is a possibility that the 

obstacle will come within the sensor’s 

detection areas before the display is 

shown and the warning beep sounds.

296

4-5. Using the driving support systems

• Thin posts or objects lower than the sen-

sor may not be detected when 

approached, even if they have been 

detected once.

• It might be difficult to hear beeps due to 

the volume of the audio system or air flow 

noise of the air conditioning system.

• It might be difficult to hear beeps due to 

the sounds of other systems.

Q

Customization

Some functions can be customized. 

(



P.495)

Q

Detection range of the sensors

Approximately 100 cm (3.3 ft.)

WARNING

Q

When using the Lexus parking assist-

sensor

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.

O

Do not use the sensor at speeds in 

excess of 10 km/h (6 mph).

O

The sensors’ detection areas and reac-

tion times are limited. When moving 

forward or reversing, check the areas 

surrounding the vehicle (especially the 

sides of the vehicle) for safety, and 

drive slowly, using the brake to control 

the vehicle’s speed.

O

Do not install accessories within the 

sensors’ detection areas.

NOTICE

Q

When using Lexus parking assist-sen-

sor

In the following situations, the system 

may not function correctly due to a sen-

sor malfunction etc. Have the vehicle 

checked by any authorized Lexus retailer 

or Lexus authorized repairer, or any reli-

able repairer.

O

The Lexus parking assist-sensor oper-

ation display flashes or shows continu-

ously, and a beep sounds when no 

obstacles are detected.

O

If the area around a sensor collides 

with something, or is subjected to 

strong impact.

O

If the bumper or grille collides with 

something.

O

If the display flashes or shows continu-

ously without beeping, except when 

the mute function has been turned on.

O

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.

Q

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.

Sensor detection display, obsta-
cle distance

A