
1974-5. Using the driving support systems
4
Driving
2Press or of the meter control
switches and select “Vehicle Settings”,
then press “OK”
3 Press or of the meter control
switches and sele ct , then press
“OK”
4 Press or of the meter control
switches and select “RSA”, then press
“OK”
■Automatic turn-off of RSA sign display
In the following situations, a displayed
speed limit sign and/or do not enter sign
will stop being displayed automatically:
●No sign has been recognized for a cer-
tain distance.
●The road changes due to a left or right
turn, etc.
In the following situations, stop and yield
signs will stop being displayed automati-
cally:
●The system determines that your vehicle
has passed the sign.
●The road changes due to a left or right
turn, etc.
■Conditions in whic h the function may
not operate or detect correctly
In the following situations, RSA does not
operate normally and may not recognize
signs, display the inco rrect sign, etc. How-
ever, this does not indicate a malfunction.
●The front camera is misaligned due to a
strong impact being applied to the sen-
sor, etc.
●Dirt, snow, stickers, etc. are on the wind-
shield near the front camera.
●In inclement weather such as heavy rain,
fog, snow or sand storms.
●Light from an oncoming vehicle, the sun,
etc. enters the front camera.
●The sign is dirty, faded, tilted or bent.
●The contrast of electronic sign is low.
●All or part of the sign is hidden by the
leaves of a tree, a pole, etc.
●The sign is only visible to the front camera for a short amount of time.
●The driving scene (turning, lane change,
etc.) is judged incorrectly.
●If a sign not appropriate for the currently
traveled lane, but the sign exists directly
after a freeway branches, or in an adja-
cent lane just before merging.
●Stickers are attached to the rear of the
preceding vehicle.
●A sign resembling a system compatible
sign is recognized.
●Side road speed signs may be detected
and displayed (if positioned in sight of the
front camera) while the vehicle is travel-
ing on the main road.
●Roundabout exit road speed signs may
be detected and displayed (if positioned
in sight of the front camera) while travel-
ing on a roundabout.
●The front of the vehicle is raised or low-
ered due to the carried load.
●The surrounding brightness is not suffi-
cient or changes suddenly.
●When a sign intended for trucks, etc. is
recognized.
●The navigation system map data is out-
dated.
●The navigation system is not operating.
●The speed informatio
n displayed on the
meter and on the navigation system may
be different due to the navigation system
using map data.
■Speed limit sign display
If the engine switch was last turned off while
a speed limit sign was displayed on the
multi-information display, the same sign dis-
plays again when the engine switch is
turned to IGNITION ON mode.
■If “RSA Malfunction Visit Your Dealer”
is shown
The system may be malfunctioning. Have
the vehicle inspected by your Lexus dealer.
■Customization
Some functions can be customized. (Cus-
tomizable features: P.408)

2014-5. Using the driving support systems
4
Driving
The vehicle travels at the speed set by the driver.
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 th is 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 vehicl e 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 (start-off operation) will resume follow-up cruising. If the start-off
operation is not performed, system contro l continues to keep your vehicle stopped.
When the turn signal lever is operated and your vehicle moves to an overtaking lane while
driving at 50 mph (80 km/h) or more, the vehicle will accelerate to help to overtake a
passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely based on
the location of the steering wheel in the vehicl e (left side driver position versus right side
driver position.) If the vehicle is driven to a region where the overtaking lane is on a differ-
ent side from where the vehicle is normally driven, the vehicle may accelerate when the
turn signal lever is operated in the opposite direction to the overtaking lane (e.g., if the
driver normally operates the vehicle in a region where the overtaking lane is to the right but
then drives to a region where the overtaking lane is to the left, the vehicle may accelerate
when the right turn signal is activated).
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
speed cruising.
1 Press the cruise control main
switch to activate the cruise con-
trol.
Dynamic 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 con-
trol. 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.205)
B
C
Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)
![LEXUS ES350 2022 Owners Manual 2024-5. Using the driving support systems
2Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-S LEXUS ES350 2022 Owners Manual 2024-5. Using the driving support systems
2Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-S](/manual-img/36/58919/w960_58919-203.png)
2024-5. Using the driving support systems
2Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
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 set speed by the
switch
To change the set speed, press 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 vehicle-to-
vehicle distance control mode)
2Decreases 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:
For the U.S. mainland and Hawaii
Fine adjustment: By 1 mph (1.6 km/h)*1 or 1
km/h (0.6 mph)
*2 each time the switch is
pressed
Large adjustment: Increases or decreases
in 1mph (1.6 km/h)
*1 or 1 km/h (0.6 mph)*2
increments for as long as the switch is held
Except for the U.S. mainland and
Hawaii
Fine adjustment: By 1 mph (1.6 km/h)*1 or 1
km/h (0.6 mph)
*2 each time the switch is
pressed
Large adjustment: Increases or decreases
in 5 mph (8 km/h)
*1 or 5 km/h (3.1 mph)*2
increments for as long as the switch is held
In the constant speed control mode
( P.205), the set speed will be
increased or decreased as follows:
Fine adjustment: By 1 mph (1.6 km/h)*1 or 1
km/h (0.6 mph)
*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 “MPH”
*2: When the set speed is shown in “km/h”
Increasing the set speed by the
accelerator pedal
Adjusting the set speed

2054-5. Using the driving support systems
4
Driving
vehicle distance control mode set
speed.
In situations where vehicle-to-vehicle
distance control needs to operate,
such as when a preceding vehicle cuts
in front of your vehicle, the curve
speed reduction function will be can-
celed.
■Operation display
Displayed when the vehicle speed is
being reduced.
When the vehicle speed reduction ends,
the display will disappear.
■Changing the settings of the curve
speed reduction function
The curve speed reduction function
can be enabled/disabled and the vehi-
cle speed reduction strength can be
adjusted on ( P.76) of the multi-
information display.
The setting will change each time the “OK”
meter control switch is pressed.
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, 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
dynamic radar cruise control indicator will
come on. Afterwards, it switches to the
cruise control indicator.
Switching to constant speed control mode
is only possible when operating the switch
with the cruise control off.
2Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
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.202
Canceling and resuming the speed setting:
Selecting constant speed con-
trol mode

2134-5. Using the driving support systems
4
Driving
Vehicles without Adaptive Variable
Suspension systemExcept F SPORT models
F SPORT models
1 Normal mode
Provides an optimal balance of fuel econ-
omy, quietness, and dynamic performance.
Suitable for city driving.
Press the switch to change to normal mode
when not in normal mode.
2Eco 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 not in Eco drive mode, if the Driving
Mode Select switch is turned toward you,
the “Eco” indicator comes on.
3Sport 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 mode, if the Driving
Mode Select switch is turned away from
you, the “Sport” indicator comes on.
Vehicles with Adaptive Variable
Suspension system
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.
•Custom mode
Allows you to drive with the power train,
Driving Mode Select switch
The driving modes can be selected
to suit driving condition.
Selecting the driving mode
A
B

2154-5. Using the driving support systems
4
Driving
*: If equipped
■Intuitive parking assist
Ultrasonic sensors are used to detect
static objects in the detection area
when driving at a low speed or backing
up. ( P.216)
■RCTA (Rear Cross Traffic Alert)
function
Rear side radar sensors are used to
detect approaching vehicles in the
detection areas behind the vehicle
when backing up. ( P.223)
■RCD (Rear Camera Detection)
function (if equipped)
A rear camera sensor is used to detect
pedestrians in the detection area
behind the vehicle when backing up.
( P.229)
■Adjusting the buzzer volume
The buzzer volume can be adjusted on
the multi-information display. The vol-
ume of buzzers for the intuitive parking
assist, RCTA function and RCD func-
tion will be adjusted simultaneously.
Use the meter control switches to
change settings. ( P.77)
1 Press or to select .
2 Press or to select “PKSA”
and then press “OK”.
3 Press or to select and
then press “OK”.
Each time the switch is pressed, the vol-
ume level will change between 1, 2, and 3.
■Muting a buzzer temporarily
A mute button will be displayed on the
multi-information display when an
object or pedestrian is detected. To
mute the buzzer, press “OK”.
The buzzers for the intuitive parking
assist, RCTA function and RCD func-
tion will be muted simultaneously.
Mute will be automatically canceled in
the following situations:
When the shift position is changed.
When there is a malfunction in a
sensor or the syst em is temporarily
unavailable.
When the function is disabled while
it is operating.
When the engine switch is turned
off.
PKSA (Parking Support
Alert)
*
The Parking Support Alert system
consists of the following functions
that operate when driving at a low
speed or backing up, such as when
parking. When the system deter-
mines that the possibility of a colli-
sion with a detected object, such as
a wall, or pedestrian is high, a warn-
ing operates to urge the driver to
take evasive action.
PKSA (Parking Support Alert)
system
Setting the buzzer volume

2244-5. Using the driving support systems
Use the meter control switches to
enable/disable the RCTA function.
( P.77)
Vehicles without the Intuitive park-
ing assist
1 Press or to select .
2 Press or to select “RCTA”
and then press “OK”.
3 Press or to select “RCTA”
and then press “OK”.
Vehicles with the Intuitive parking
assist
1 Press or to select .
2 Press or to select “PKSA”
and then press “OK”.
3 Press or to select “RCTA”
and then press “OK”.
When the RCTA function is disabled, the
RCTA OFF indicator ( P.66) illuminates
on the multi-information display. (Each time the engine switch is turned off then
changed to IGNITION ON mode, the
RCTA function will be enabled automati-
cally.)
■Outside rear view mirror indicator visi-
bility
In strong sunlight, the outside rear view mir-
ror indicator may be difficult to see.
■Hearing the RCTA buzzer
The RCTA buzzer may be difficult to hear
over loud noises, such as if the audio system
volume is high.
■When “Rear Cross Traffic Alert
Unavailable” is shown on the multi-
information display
Ice, snow, mud, etc., may be attached to the
rear bumper around the sensors.
( P.209) Remove the ice, snow, mud,
etc., attached to the rear bumper around
the sensors to return the function to normal.
Additionally, the sensors may not operate
normally when driving in extremely hot or
cold environments.
■Rear side radar sensors
P.209
■Operation of the RCTA function
The RCTA function uses rear side radar sensors to detect vehicles approaching
from the right or left at the rear of the ve hicle and alerts the driver of the presence
of such vehicles by flashing the outside rear view mirror indicators and sounding a
buzzer.
Turning the RCTA function
on/off
NOTICE
■Before using the RCTA function
Do not place obstacles near the sensors.
RCTA function

2264-5. Using the driving support systems
■The RCTA function is operational when
The RCTA function operates when all of the
following conditions are met:
●The engine switch is in IGNITION ON
mode.
●The RCTA function is on.
●The shift lever is in R.
●The vehicle speed is less than approxi-
mately 5 mph (8 km/h).
●The approaching vehicle speed is
between approximately 5 mph (8 km/h)
and 18 mph (28 km/h).
■Setting the buzzer volume
The buzzer volume can be adjusted on the
multi-information display.
Use the meter control switches to change
settings. ( P.77)
Vehicles without the Intuitive parking
assist
1 Press or to select .
2 Press or to select “RCTA”,
then press “OK”.
3 Press or to select and then
press “OK”.
Each time the switch is pressed, the volume
level will change between 1, 2 and 3.
Vehicles with the Intuitive parking assist
P.215
■Muting a buzzer temporarily
Vehicles without the Intuitive parking
assist
A mute button will be displayed on the
multi-information display when an object is
detected. To mute the buzzer, press “OK”.
●When the shift lever is changed.
●When the vehicle speed exceeds a cer-
tain speed.
●When the operating function is tempo-
rarily canceled.
●When the operating function is disabled
manually.
●When the engine switch is turned off.
Vehicles with the Intuitive parking assist
P.215
■Conditions under wh ich the system will
not detect a vehicle
The RCTA function is not designed to
detect the following types of vehicles
and/or objects:
●Vehicles approaching from directly
behind
●Vehicles backing up in a parking space
next to your vehicle
●Vehicles that the sensors cannot detect
due to obstructions
●Guardrails, walls, signs, parked vehicles
and similar stationary objects*
●Small motorcycles, bicycles, pedestrians,
etc.*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking
spaces next to your vehicle*
●The distance between the sensor and
approaching vehicle gets too close
*: Depending on the conditions, detection of a vehicle and/or object may occur.
■Situations in which the system may not
operate properly
The RCTA function may not detect vehicles
correctly in the following situations:
●When the sensor is misaligned due to a
strong impact to the sensor or its sur-
rounding area.
●When mud, snow, ice, a sticker, etc.,is
covering the sensor or surrounding area
on the rear bumper.
●When driving on a road surface that is