sensor LEXUS RCF 2018 Owner's Guide

2774-5. Using the driving support systems
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Dynamic radar cruise control can be set when ●
The shift lever is in D. ●
Range 4 or higher of D has been selected by using the paddle shift switch. ●
Vehicle speed is at or above approximately 30 mph (50 km/h).■
Accelerating after setting the vehicle speed
The vehicle can accelerate by operating the accelerator pedal. After accelerating, the
set speed resumes. However, during vehicle-to-vehicle distance control mode, the vehi-
cle speed may decrease below the set speed in order to maintain the distance to the pre-
ceding vehicle. ■
Automatic cancelation of vehicle- to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically canceled in the following situ-
ations. ●
Actual vehicle speed falls at or below approximately 25 mph (40 km/h).●
VSC is activated. ●
TRAC is activated for a period of time. ●
When the VSC or TRAC system is turned off. ●
When snow mode is set. ●
The sensor cannot detect correctly because it is covered in some way. ●
Pre-collision braking is activated.
If vehicle-to-vehicle distance control mode is automatically canceled for any other rea-
son, there may be a malfunction in th e system. Contact your Lexus dealer.

278 4-5. Using the driving support systems
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Automatic cancelation of co nstant speed control mode
Constant speed control mode is automatica lly canceled in the following situations:●
Actual vehicle speed is more than approxim ately 10 mph (16 km/h) below the set vehi-
cle speed. ●
Actual vehicle speed falls below approximately 25 mph (40 km/h).●
VSC is activated. ●
TRAC is activated for a period of time. ●
When the VSC or TRAC system is turned off. ●
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 . Contact your Lexus dealer.■
Warning messages and buzzers fo r dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for ca ution while driving. If a warn ing message is shown on the
multi-information display, read the message and follow the instructions.■
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 insuff icient 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. 275) may not be activated.●
Vehicles that cut in suddenly ●
Vehicles traveling at low speeds ●
Vehicles that are not moving in the same lane ●
Vehicles with small rear ends (traile rs with no load on board, etc.)
●
Motorcycles travelin g in the same lane●
When water or snow thrown up by the surrounding vehicles hinders the detecting of
the sensor

2794-5. Using the driving support systems
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Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Conditions under which the ve hicle-to-vehicle distance co ntrol mode may not function
correctly
In the case of the following conditions, o perate the brake pedal (or accelerator pedal,
depending on the situ ation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system may not
operate properly.
●
When the vehicle ahead of you decelerates suddenly ●
When your vehicle is pointing upwards
(caused by a heavy load in the luggage com-
partment, etc.) ●
Preceding vehicle has an extremely high
ground clearance
●
When the road curves or when the lanes are
narrow
●
When steering wheel operation or your posi-
tion in the lane is unstable

280 4-5. Using the driving support systems
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Types of sensors 
RC350/RC300 
RC FIntuitive parking assist 
 : If equippedThe distance from your vehicle to near by obstacles when parallel parking or
maneuvering into a garage is measured by the sensors and communicated via
the multi-information display, Center Display and a buzzer. Always check the
surrounding area when using this system.
Front center sensors
Front corner sensors Rear corner sensors
Rear center sensors1
2 3
4

282 4-5. Using the driving support systems
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)When the sensors detect an obstacle , a graphic is shown on the multi-
information display and Center Display depending on the position and distance
to the obstacle. ■
Multi-information display
■
Center Display
A graphic is shown when the Lexus
parking assist monitor is displayed
(insert display).
A simplified image is displayed on
the upper right corner of the screen
when an obstacle is detected.Display 
RC350/RC300 
RC F
Front corner sensor detection
Front center sensor detection Rear corner sensor detection
Rear center sensor detection1
2 3
4

2834-5. Using the driving support systems
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Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Multi-information display and Center Display
Sensors that detect an obstacle will illuminate continuously or blink. 
RC350/RC300
Sensor detection display, obstacle distance Multi-
information
display Insert display
(Center Dis-
play) Approximate distance to obstacle
Corner sensor/
front center sensor Rear center sensor
(continuous) (blinking slowly) Front center sensor
only:
3.3 ft. (100 cm) to 1.6 ft.
(50 cm) 4.9 ft. (150 cm) to 2.0
ft. (60 cm)
(continuous) (blinking) 1.6 ft. (50 cm) to 1.3 ft.
(40 cm) 2.0 ft. (60 cm) to 1.5 ft.
(45 cm)
(continuous) (blinking rapidly) 1.3 ft. (40 cm) to 1.0 ft.
(30 cm) 1.5 ft. (45 cm) to 1.1 ft.
(35 cm)
( blinking ) (continuous) Less than 1.0 ft. (30 cm) Less than 1.1 ft. (35 cm)

284 4-5. Using the driving support systems
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 
RC F Multi-
information
display Insert display
(Center Dis-
play) Approximate distance to obstacle
Corner sensor Rear center sensor
(continuous) (blinking slowly)  4.9 ft. (150 cm) to 2.0
ft. (60 cm)
(continuous) (blinking) Front corner sensor:
1.6 ft. (50 cm) to 1.3 ft.
(40 cm)
Rear corner sensor:
2.0 ft. (60 cm) to 1.5 ft.
(45 cm) 2.0 ft. (60 cm) to 1.5 ft.
(45 cm)
(continuous) (blinking rapidly) Front corner sensor:
1.3 ft. (40 cm) to 1.0 ft.
(30 cm)
Rear corner sensor:
1.5 ft. (45 cm) to 1.0 ft.
(30 cm) 1.5 ft. (45 cm) to 1.1 ft.
(35 cm)
(blinking) (continuous) Less than 1.0 ft. (30 cm) Less than 1.1 ft. (35 cm)

2854-5. Using the driving support systems
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Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Buzzer operation and distance to an obstacle
A buzzer sounds when the sensors are operating. ●
The buzzer beeps faster as the vehicl e approaches an obstacle. When the
vehicle comes within the following di stance of the obstacle, the buzzer
sounds continuously:
• Front center sensors (RC350/RC3 00): Approximately 1.0 ft. (30 cm)
• Corner sensors: Approximately 1.0 ft. (30 cm)
• Rear center sensors: Appr oximately 1.1 ft. (35 cm)●
When 2 or more obstacles are detected simultaneously, the buzzer system
responds to the nearest obstacle. If on e or both come within the above dis-
tances, the beep will repeat a lo ng tone, followed by fast beeps.
The diagram shows the detection range of th e sensors. Note that the sensors cannot
detect obstacles that are extremely close to the vehicle.
The range of the sensors may change depe nding on the shape of the object etc.Detection range of the sensors 
RC350/RC300 
RC F
Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm) Approximately 1.6 ft. (50 cm)
Approximately 2.0 ft. (60 cm)1
2 3
4

286 4-5. Using the driving support systems
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)You can change the warning beep volum e and Center Display operating condi-
tions.
Press the “MENU” button on the Remote Touch. (  P. 326)
Select “Setup” on the “Menu” screen.
Select “Vehicle” on the “Setup” screen.
Select “LEXUS Park Assist” on the vehicle settings screen.
Select the desired button.
The alert volume can be adjusted.
Front center sensor display an d tone indication can be set.
Rear center sensor display and tone indication can be set.Setting up intuitive parking assist 1
2
3
4
5 
RC350/RC300 
RC F
1
2
3

2874-5. Using the driving support systems
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Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
The intuitive parking assist can be operated when ●
Front center sensors (
RC350/RC300 ):
• The engine switch is in IGNITION ON mode.
• The shift lever is in a position other than P or R.
• The vehicle speed is less than about 6 mph (10 km/h). ●
Front corner sensors:
• The engine switch is in IGNITION ON mode.
• The shift lever is in a position other than P.
• The vehicle speed is less than about 6 mph (10 km/h).
(At any speed when the shift lever is in R) ●
Rear corner and rear center sensors:
• The engine switch is in IGNITION ON mode.
• The shift lever is in R. ■
Muting the buzzer sound ●
To mute the buzzer sound:
The buzzer can be temporarily muted by pressing “OK” of the meter control switches
while an obstacle detectio n display is shown on the multi-information display.●
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 6 mph (10 km/h) with the shift
position in D.
• When the intuitive parking assist is turned off once and turned on again.
• When the engine switch is turned off once and turned to IGNITION ON mode
again.■
If a message is displayed on the multi-information display
 P. 463