Lexus LS 500 2019 Owner's Manual page 266

266
4-5. Using the driving support systems
■ The RCTA function is operational when
The RCTA function operates when all of the
following conditions are met:
● The engine switch is in IGNITION ON
mode.
The RCTA function is on.
●
● The shift position is in R.
● The vehicle speed is less than approxi-
mately 5 mph (8 km/h).
● The approaching vehicle speed is
between approximately 5 mph (8 km/h)
and 18 mph (28 km/h).
■ Setting the buzzer volume
The buzzer volume can be adjusted on the
multi-information display. (P.256)
■ 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.
LS500_OM_(U)_1810
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
weather, such as heavy rain, snow, or fog
• When multiple vehicles are approaching
with only a small gap between each vehi-
cle
• If a vehicle is approaching the rear of
your vehicle rapidly
• When a towing eyelet is installed to the
rear of the vehicle.
• When backing up on a slope with a sharp
change in grade
• When backing out of a shallow angle
parking spot
*
*
• Immediately after the RCTA function is
turned on
• Immediately after the engine is started