2019 LEXUS RCF rear view mirror

2974-5. Using the driving support systems
4
Driving
RC F_U ■
Operation of the RCTA function
The RCTA function uses radar sensors to detect vehicles approaching from
the right or left at the rear of the vehicle and alerts the driver of the presence
of such vehicles by flashing the outsid e rear view mirror indicators and sound-
ing a buzzer.
Approaching vehicles
Detection areas of approaching vehicles■
RCTA icon display
When a vehicle approaching from
the right or left at the rear of the
vehicle is detected, the following will
be displayed on the Center Display.
This illustration shows an example of
a vehicle approaching from both
sides of the vehicle.
:The RCTA function is malfunctioning (  P. 292)RCTA function
1
2
WARNING ■
Cautions regarding the use of the function
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The RCTA function is only a supplementary function which alerts the driver that a vehi-
cle is approaching from the right or left at the rear of the vehicle. As the RCTA function
may not function correctly under certain cond itions, the driver’s own visual confirma-
tion of safety is necessary. Over reliance on this function may lead to an accident
resulting death or serious injury.

334 5-1. Using the air conditioning system
RC F_U ■
Adjusting the temperature setting
To adjust the temperature setting,
touch and slide your finger up or
down on the sensor. The temperature setting can also be
adjusted by touching on the sensor.
When the temperature setting is
changed, a buzzer sounds.
If is not pressed, the system
will blow ambient temperature air or
heated air.■
Fan speed setting
Press to increase the fan speed.
Press to decrease the fan speed. ■
Change the airflow mode
To change the airflow, press . The air outlets used are switched
each time the button is pressed.
Air flows to the upper body.
Air flows to the upper body and
feet.
Air flows to the feet.
Air flows to the feet and the wind-
shield defogger operates.
■
Other functions ●
Switching between outside air and recirculated air modes (  P. 338)●
Defogging the windshield (  P. 338)●
Defogging the rear window and outside rear view mirrors (  P. 338)1
2
3
4

338 5-1. Using the air conditioning system
RC F_U ■
Switching between outside air and recirculated air modes
Press . The mode switches among (recirculated air mode), automatic and
(outside air mode) modes each time the button is pressed.
When the system is switched to auto matic mode, the air conditioning system
operates automatically. The indicator above the selected button comes on.■
Micro dust and pollen filter
Pollen is removed from the air and the air flows to the upper part of the body.
Select on the option control screen. When the micro dust and pollen filter is on, is displayed on the air condition-
ing control screen.
In order to prevent the windshield from fo gging up when the outside air is cold, the
dehumidification function may operate.
Pollen is filtered even if the micro du st and pollen filter is turned off.■
Defogging the windshield
Defoggers are used to defog th e windshield and side windows.
Press . Set the outside/recirculated air mode button to outside air mode if the recirculated
air mode is used. (It may switch automatically.)
To defog the windshield and the side wind ows early, turn the air flow and tempera-
ture up.
To return to the previous mode, press
again when the windshield is
defogged.■
Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window, and to remove raindrops, dew
and frost from the outside rear view mirrors.
Press . The defoggers will automatically turn off after a period of time.Other functions

3435-1. Using the air conditioning system
5
Interior features
RC F_U WARNING ■
To prevent the windshield from fogging up ●
Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outside air and that of the windshield can cause
the outer surface of the windshield to fog up, blocking your vision.
■
To prevent burns ●
Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on. ●
Do not touch the glass at lower part of the windshield or to the side of the front pillars
when the windshield wiper de-icer is on.
NOTICE ■
To prevent battery discharge
Do not leave the air conditioni ng system on longer than necessary when the engine is
stopped. ●
Do not place anything on the instrument
panel which may cover th e air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

360 5-4. Using the other interior features
RC F_U ■
Programming HomeLink ®
Steps through must be performed within 60 seconds, otherwise the
indicator light will stop flashing and pr ogramming will not be able to be com-
pleted.
Press and release the HomeLink ®
button you want to program and check
that the HomeLink ®
indicator light flashes (orange).
Point the remote control transmit-
ter for the device at the rear view
mirror, 1 to 3 in. (25 to 75 mm)
from the HomeLink ®
buttons.Keep the HomeLink ®
indicator light
in view while programming.
Program a device. 
Programming a device other than an entry gate (for U.S.A. owners)
Press and hold the handheld tran smitter button until the HomeLink ®
indi-
cator light changes from slowly flashi ng orange to rapidly flashing green
(rolling code) or continuously lit green (fixed code), then release the but-
ton. 
Programming an entry gate (for U. S.A. owners)/Programming a device
in the Canadian market
Press and release the remo te control transm itter button at 2 second inter-
vals, repeatedly, until the HomeLink ®
indicator light changes from slowly
flashing (orange) to rapidly flashing (green) (rolling code) or continuously
lit (green) (fixed code). 1
3
1
2
3

366 5-4. Using the other interior features
RC F_U To turn the compass on or off, press and
hold the switch for 3 seconds.
Compass 
 : If equippedThe compass on the inside rear view mirror indicates the direction in which
the vehicle is heading.
Operation
Displays and directions Display Direction
N North
NE Northeast
E East
SE Southeast
S South
SW Southwest
W West
NW Northwest

368 5-4. Using the other interior features
RC F_U ■
Circling calibration
Stop the vehicle in a place where it is safe to drive in a circle.
Press and hold the switch for 9
seconds. “C” appears on the compass display.
Drive the vehicle at 5 mph (8
km/h) or less in a circle until a
direction is displayed. If there is not enough space to drive
in a circle, drive around the block
until the direction is displayed.■
Conditions unfavorable to correct operation
The compass may not show the correct di rection in the follo wing conditions:●
The vehicle is stopped immediately after turning. ●
The vehicle is on an inclined surface. ●
The vehicle is in a place where the earth's ma gnetic field is subject to interference by
artificial magnetic fields (underground car park/parking lot, under a steel tower,
between buildings, roof car park/parking lot, near an intersection, near a large vehicle,
etc.). ●
The vehicle has become magnetized.
(There is a magnet or metal object near the inside rear view mirror.)●
The battery has been disconnected. ●
A door is open. 1
2
3
WARNING ■
While driving the vehicle
Do not adjust the display. Adjust the di splay only when the vehicle is stopped.■
When doing the circling calibration
Secure a wide space, and watch out for pe ople and vehicles in the neighborhood. Do
not violate any local traffic rules wh ile performing ci rcling calibration.

3695-4. Using the other interior features
RC F_U 5
Interior features NOTICE ■
To avoid compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror.
Doing this may cause the comp ass sensor to malfunction.■
To ensure normal oper ation of the compass●
Do not perform circling calibration of the compass in a place where the earth's mag-
netic field is subject to interferen ce by artificial magnetic fields.●
During calibration, do not operate electric systems (moon roof, power windows, etc.)
as they may interfere with the calibration.