Lexus LC500 (2022 year). Manual in english - page 13

 

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Lexus LC500 (2022 year). Manual in english - page 13

 

 

227

4

4-5. Using the driving support systems

Dr

ivin
g

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 high-

ways

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

228

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

229

4

4-5. Using the driving support systems

Dr

ivin
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speed cruising.

1

Press the cruise control main 
switch to activate the cruise con-
trol.

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.232)

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

230

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.232), 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

231

4

4-5. Using the driving support systems

Dr

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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 appropri-

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)

232

4-5. Using the driving support systems

ate vehicle-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 
distance control mode does not func-
tion correctly due to a dirty radar sen-
sor, 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.229

Canceling and resuming the speed setting: 

P.231

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

233

4

4-5. Using the driving support systems

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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 reli-
able 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.

234

4-5. Using the driving support systems

Q

Brake system operation sound

If the brakes are applied automatically while 

the vehicle is in vehicle-to-vehicle distance 

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.231) 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

235

4

4-5. Using the driving support systems

Dr

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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

236

4-5. Using the driving support systems

Cancel switch

1

Press the cruise control main 
switch to activate the cruise con-
trol.

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

237

4

4-5. Using the driving support systems

Dr

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g

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 any 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

238

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.275)

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

239

4

4-5. Using the driving support systems

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ivin
g

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.283)

O

Adjust the fan speed (

P.281, 283)

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.277)

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

240

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 dis-

play is shown on the multi-information dis-

play.

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 

Turning Lexus parking assist-
sensor on/off

A
B
C
D

241

4

4-5. Using the driving support systems

Dr

ivin
g

position in D

• 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 

“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 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

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 30 cm (1.0 ft.) 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.

Q

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:

O

Wires, fences, ropes, etc.

O

Cotton, snow and other materials that 

absorb sound waves

O

Sharply-angled objects

O

Low objects

O

Tall objects with upper sections project-

ing outwards in the direction of your vehi-

cle

Q

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.

O

There is dirt, snow, water drops or ice on 

a sensor. (Cleaning the sensors will 

resolve this problem.)

O

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 displayed abnormally, or 

objects, such as a wall, may not be 

detected.

O

When a sensor or the area around a sen-

sor is extremely hot or cold.

O

On an extremely bumpy road, on an 

incline, on gravel, or on grass.

O

When vehicle horns, vehicle detectors, 

motorcycle engines, air brakes of large 

vehicles, the clearance sonar of other 

242

4-5. Using the driving support systems

vehicles or other devices which produce 

ultrasonic waves are near the vehicle.

O

A sensor is coated with a sheet of spray 

or heavy rain.

O

If objects draw too close to the sensor.

O

When a pedestrian is wearing clothing 

that does not reflect ultrasonic waves (ex. 

skirts with gathers or frills).

O

When objects that are not perpendicular 

to the ground, not perpendicular to the 

vehicle traveling direction, uneven, or 

waving are in the detection range.

O

Strong wind is blowing.

O

When driving in inclement weather such 

as fog, snow or a sandstorm.

O

When an object that cannot be detected 

is between the vehicle and a detected 

object.

O

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.

O

If the orientation of a sensor has been 

changed due to a collision or other 

impact.

O

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.

O

If the front of the vehicle is raised or low-

ered due to the carried load.

O

If the vehicle cannot be driven in a stable 

manner, such as when the vehicle has 

been in an accident or is malfunctioning.

O

When tire chains, a compact spare tire or 

an emergency tire puncture repair kit are 

used.

Q

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.

O

When driving on a narrow road.

O

When driving toward a banner, flag, low-

hanging branch or boom barrier (such as 

those used at railroad crossings, toll 

gates and parking lots).

O

When there is a rut or hole in the surface 

of the road.

O

When driving on a metal cover (grating), 

such as those used for drainage ditches.

O

When driving up or down a steep slope.

O

If a sensor is hit by a large amount of 

water, such as when driving on a flooded 

road.

O

There is dirt, snow, water drops or ice on 

a sensor. (Cleaning the sensors will 

resolve this problem.)

O

A sensor is coated with a sheet of spray 

or heavy rain.

O

When driving in inclement weather such 

as fog, snow or a sandstorm.

O

When strong winds are blowing.

O

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.

O

If the front of the vehicle is raised or low-

ered due to the carried load.

O

If the orientation of a sensor has been 

changed due to a collision or other 

impact.

 

 

 

 

 

 

 

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