Lexus LS500h, Manual, Page: 272 / 524

272
4-5. Using the driving support systems
LS500h_OM_(U)_1810
If a vehicle approaching from the right or
left at the rear of the vehicle is detected,
the RCTA icon (

P.273) for the detected
side will be displayed on the Center Dis-
play. This illustration shows an example of a
vehicle approaching from both sides of the
vehicle.
RCTA buzzer
If a vehicle approaching from the right or
left at the rear of the vehicle is detected, a
buzzer will sound. The buzzer also sounds
for approximately 1 second immediately
after the RCTA function is turned on.
Use the meter control switches to
enable/disable the RCTA function.
(

P.91)
1
Press or to select .
2 Press or to select “PKSA”
and then press .
3
Press or to select “RCTA”
and then press .
When the RCTA function is disabled, the
RCTA OFF indicator (

P.76) illuminates.
(Each time the power switch is turned off
then changed to ON mode, the RCTA
function will be enabled automatically.)
■ 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 “RCTA Not Available” is shown
on the multi-information display
Water, snow, mud, etc., may be attached to
the rear bumper around the sensors.
(

P.260) Removing the water, snow, mud,
etc., from the attached to the rear bumper
around the sensors to normal.
Additionally, the function may not function
normally when used in extremely hot or
cold environments.
■
Rear side radar sensors

P.260
■
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 vehicle 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
D
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 supplemen-
tary function which alerts the driver that a
vehicle is approaching from the right or
left at the rear of the vehicle. As the
RCTA function may not function cor-
rectly under certain conditions, the
driver’s own visual confirmation of safety
is necessary. Over reliance on this func-
tion may lead to an accident resulting
death or serious injury.
RCTA function