2020 LEXUS RX450H center

2934-5. Using the driving support systems
4
Driving
RX350/RX350L_U
◆Vehicle sway warning
When the vehicle is swaying or
appears as if it may depart from its
lane multiple times, the warning
buzzer sounds and a message is dis-
played on the multi-information dis-
play to alert the driver.
◆Lane centering function
This function is linked with radar
cruise control and provides the
required assistance by operating the
steering wheel to keep the vehicle in
its current lane.
When radar cruise control is not
operating, the lane centering func-
tion does not operate.
If the system detects that the steering
wheel has not been operated for a
fixed amount of time or the steering
wheel is not being firmly gripped, a
warning is displayed on the multi-
information display and the warning
buzzer sounds.

2964-5. Using the driving support systems
RX350/RX350L_U
LKA indicator
The illumination condition of the
indicator informs the driver of the
system operation status.
Illuminated in white:
LKA system is operating.
Illuminated in green:
Steering wheel assistance of the steer-
ing assist function or lane centering
function is operating.
Flashing in amber:
Lane departure alert function is operat-
ing.
Operation display of steering wheel
operation support
Indicates that steering wheel assistance of the steering assist function or lane
centering function is operating.
Lane departure alert function display
Displayed when the multi-information disp lay is switched to the driving assist
system information screen.
Indications on the multi-information display
1
2
3
Inside of displayed white lines is
whiteInside of displayed white lines is
black
Indicates that the system is recognizing
white (yellow) lines. When the vehicle
departs from its lane, the white line dis-
played on the side the vehicle departs
from flashes amber. Indicates that the system is not able to
recognize white (ye
llow) lines or is
temporarily canceled.

2974-5. Using the driving support systems
4
Driving
RX350/RX350L_U
■Operation conditions of each function
●Lane departure alert function
This function operates when all of the following conditions are met.
• LKA is turned on.
• Vehicle speed is approximatel y 32 mph (50 km/h) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane is approx imately 9.8 ft. (3 m) or more.
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or around a gentle curve with a radius of more
than approximately 492 ft. (150 m).
• No system malfunctions are detected. ( P. 654)
●Steering assist function
This function operates when all of the follo wing conditions are met in addition to the
operation conditions for the lane departure alert function.
• Setting for “Steering Assist” in of the multi-information display is set to “On”.
(  P. 97)
• Vehicle is not accelerated or dece lerated by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for changing
lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
●Vehicle sway warning
This function operates when all of the following conditions are met.
• Setting for “Sway Warning” in of the multi-information display is set to “On”.
(  P. 97)
• Vehicle speed is approximatel y 32 mph (50 km/h) or more.
• Width of traffic lane is approx imately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. ( P. 654)
●Lane centering function
This function operates when all of the following conditions are met.
• LKA is turned on.
• Setting for “Lane Center” in of the mu lti-information display are set to “On”.
(  P. 97)
• System recognizes white (yellow) lines.
• Dynamic radar cruise control with full-speed range is operating.
• Width of traffic lane is approximately 8.2 to 13.5 ft. (2.5 to 4.1 m).
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or around a gentle curve with a radius of more
than approximately 656 ft. (200 m).
• No system malfunctions are detected. ( P. 654)
• Vehicle does not accele rate or decelerate by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for changing lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Steering assist function is not operating.

2984-5. Using the driving support systems
RX350/RX350L_U
■Temporary cancellation of functions
When operation conditions are no longer met, a function may be temporarily canceled.
However, when the operation conditions are met again, operat ion of the function is auto-
matically restored. ( P. 297)
■Steering assist function/lane centering function
Depending on the vehicle speed, lane depart ure situation, road conditions, etc., the
operation of the functions may not be reco gnized or the functions may not operate.
■Lane departure alert function
The warning buzzer may be difficult to hear due to external noise, audio playback, etc.
Also, it may be difficult to f eel steering wheel vibrations due to the road conditions, etc.
■Hands off steering wheel alert
When the system determines that the driver has removed their hands from the steering
wheel while the steering assist function or lane centering function is operating, a warning
message is displayed on the multi-info rmation display and the buzzer sounds.
■White (yellow) lines are only on one side of road
The LKA system will not operate for the side on which white (yellow) lines could not be
recognized.

3264-5. Using the driving support systems
RX350/RX350L_U
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Press “ ” or “ ” of the meter control
switches, select .
Press “ ” or “ ” of the meter control
switches, select “Parking Assist”.
When on, the indicator light comes on
to inform the driver that the system is
operational.
Intuitive parking assist
: If equipped
The distance from your vehicle to a ne arby wall or other stationary object
when parallel parking or maneuvering into a garage is measured by the sen-
sors and communicated via the displays and a buzzer. Always check the sur-
rounding area when using this system.
Types of sensors
Except F SPORT modelsF SPORT models
Turning the intuitive parking assist on/off
1
2
3
4
1
2

3274-5. Using the driving support systems
4
Driving
RX350/RX350L_U
When the sensors detect an obstacle, the following displays inform the driver of
the position and distance to the obstacle.
■Multi-information display
Front corner sensor operation
Front center sensor operation
Rear corner sensor operation
Rear center sensor operation
■Lexus Display Audio or navigation system (8-inch display) screen
Intuitive parking assist
When the vehicle is moving forward.
A graphic is automatically displayed
when an obstacle is detected. The
screen can be set so that the graphic
is not displayed. ( P. 332)
: Select to mute the buzzer
sounds.
Intuitive parking assist
Rear Cross Traffic Alert (if
equipped)
When the vehicle is moving back-
ward.
A simplified image is displayed on
the upper part of the screen when an
obstacle is detected.
Display
1
2
3
4
1
2
3

3294-5. Using the driving support systems
4
Driving
RX350/RX350L_U
■Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
Sensor detection display, obstacle distance
Display*1
Insert displayApproximate distance to object
Lexus parking assist moni- tor
*4
Panoramic
view monitorFront and rear center sensorFront and rear corner sensor
(continuous)(blinking slowly)(blinking slowly) Front center sen-
sor:
3.3 ft. (100 cm)
to
2.0 ft. (60 cm)
Rear center sen-
sor:
4.9 ft. (150 cm)
to
2.0 ft. (60 cm)

(continuous)(blinking)(blinking)
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
RX350
Front corner
sensor:
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
Rear corner sen-
sor:
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
RX350L
Front corner
sensor:
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
Rear corner sen-
sor:
2.1 ft. (66 cm) to
1.5 ft. (45 cm)
(continuous)(blinking rapidly)(blinking rapidly) 1.5 ft. (45 cm) to
1.2 ft. (35 cm)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)

3304-5. Using the driving support systems
RX350/RX350L_U
*1: The images may differ from th ose shown in the illustrations. (P. 327)
*2: Multi-information display
*3: Audio system screen
*4: Lexus Display Audio or navigation system (8-inch display) screen
■Buzzer operation and distance to an object
A buzzer sounds when the sensors are operating.
●The buzzer sounds faster as the vehicle approaches an object.
When the vehicle comes within the following distance of the object, the
buzzer sounds continuously: Approximately 1.2 ft. (35 cm).
●When 2 or more objects are detected simultaneously, the buzzer system
responds to the nearest object. If on e or both come within the above dis-
tances, the beep will repeat a lo ng tone, followed by fast beeps.
(blinking*2 or
continuous
*3)
(continuous)(continuous) Less than
1.2 ft. (35 cm)
Less than
1.2 ft. (35 cm)
Display*1
Insert displayApproximate distance to object
Lexus parking
assist moni-
tor
*4
Panoramic
view monitorFront and rear center sensorFront and rear corner sensor