Lexus LS 500h 2019, Owner'S Manual

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355
4
4-5. Using the driving support systems
Dr
ivin
g
The buzzer can alert the driver of
faster vehicles approaching from far-
ther away.
Example:
■
The RCTA function is operational when
The RCTA function operates when all of the
following conditions are met:
●
The power switch is in ON mode.
●
The RCTA function is on.
●
The shift position is in R.
●
The vehicle speed is less than approxi-
mately 8 km/h (5 mph).
●
The approaching vehicle speed is
between approximately 8 km/h (5 mph)
and 28 km/h (18 mph).
■
Setting the buzzer volume
The buzzer volume can be adjusted on the
multi-information display. (

P.345)
■
Conditions under which the RCTA func-
tion 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
*
*
: Depending on the conditions, detection
of a vehicle and/or object may occur.
■
Conditions under which the RCTA func-
tion may not function correctly
●
The RCTA function may not detect vehi-
cles correctly in the following situations:
• When a 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 a sensor or its surrounding area
on the rear bumper
• When driving on a road surface that is
wet with standing water during bad
Approaching vehi-
cle speed
Approximate
alert distance
28 km/h (18 mph)
(fast)
20 m (65 ft.)
8 km/h (5 mph)
(slow)
5.5 m (18 ft.)
A
LS500h_OM_General_OM50J66E