LEXUS LX570 2020 Owners Manual

LX570_OM_OM60R61U_(U)
3714-5. Using the driving support systems
4
Driving
Multi-information display
The BSM function/RCTA function can be turned on/off. (P. 372)
The RCTA function is available when the BSM function is on.
Outside rear view mirror indicators
BSM function:
When a vehicle is detected in a blind sp ot of the outside rear view mirrors or
approaching rapidly from behind into a blind spot, the outside rear view mirror indica-
tor on the detected side will illuminate. If the turn signal lever is operated toward the
detected side, the outside rear view mirror indicator will flash.
RCTA function:
When a vehicle approaching from the right or left at the rear of the vehicle is
detected, both outsid e rear view mirror indicators will flash.
“BSM” indicator/“RCTA” indicator
When the BSM function/RCTA function is turned on, the indicator illuminates
Monitor screen display (RCTA function only)
If a vehicle approaching from the right or left at the rear of the vehicle is detected, the
RCTA icon ( P. 379) for the detected side will be displayed on the monitor screen.
This illustration shows an example of a vehi cle approaching from the left at the rear of
the vehicle.
RCTA buzzer (RCTA function only)
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 BSM function is operated to turn the system on.
1
2
3
4
5

372
LX570_OM_OM60R61U_(U)4-5. Using the driving support systems
Press or of the meter control switches, select .
Press or of the meter control swit
ches, select “BSM”, and then press
.
Press or of the meter control sw itches, select “BSM” or “RCTA”, and
then press .
■Outside rear view mirro r indicator visibility
In strong sunlight, the outside rear view mirror indicator may be difficult to see.
■Hearing RCTA buzzer
The RCTA buzzer may be difficult to hear over loud noises, such as if the audio system
volume is high.
■When “Blind Spot Monitor Unavailable” is shown on the multi-information display
Water, snow, mud, etc., may be built up in th e vicinity of the sensor area of bumper. (P. 373)
Removing the water, snow, mud, etc., from the vicinity of the sensor area of bumper should
return it to normal.
Also, the sensor may not function normally wh en used in extremely hot or cold weather.
■When “Blind Spot Monitor System Malfunction” is shown on the multi-information dis-
play
There may be a sensor malfunction or voltage abnormality. Have the vehicle inspected at
your Lexus dealer.
■Certification for the Blind Spot Monitor
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico
Turning the BSM function/RCTA function on/off
1
2
3

LX570_OM_OM60R61U_(U)
3734-5. Using the driving support systems
4
Driving
For vehicles sold in Canada
WARNING
■Handling the radar sensor
One Blind Spot Monitor sensor is installed inside the left and right side of the vehicle
rear bumper respectively. Observe the follow ing to ensure the Blind Spot Monitor can
function correctly.
●Keep the sensors and the surrounding areas
on the rear bumper clean at all times.
If a sensor or its surrounding area on the rear
bumper is dirty or covered with snow, the
Blind Spot Monitor may not operate and a
warning message ( P. 372) will be dis-
played. In this situation, clear off the dirt or
snow and drive the vehicle with the operation
conditions of the BSM function ( P. 376)
satisfied for approximately 10 minutes. If the
warning message does not disappear, have
the vehicle inspected by your Lexus dealer.

374
LX570_OM_OM60R61U_(U)4-5. Using the driving support systems
The BSM function uses radar sensors to de
tect the following vehicles traveling in
adjacent lanes and advises th e driver of the presence of such vehicles via the
indicators on the outside rear view mirrors.
Vehicles that are traveling in areas th at are not visible using the outside rear
view mirrors (the blind spots)
Vehicles that are approaching rapidly from behind in areas that are not visible
using the outside rear view mirrors (the blind spots)
WARNING
■Handling the radar sensor
●Do not subject a sensor or its surrounding area on the rear bumper to a strong
impact.
If a sensor is moved even slightly off po sition, the system may malfunction and vehi-
cles may not be detected correctly.
In the following situations , have your vehicle inspected by your Lexus dealer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sensor is scratched or dented, or part of it has become disconnected.
●Do not disassemble the sensor.
●Do not attach stickers to the sensor or surrounding area on the rear bumper.
●Do not modify the sensor or surrounding area on the rear bumper.
●Do not paint the rear bumper any colo r other than an official Lexus color.
BSM function
1
2

LX570_OM_OM60R61U_(U)
3754-5. Using the driving support systems
4
Driving
The areas that vehicles can be detected in are outlined below.
The range of each detection area is:Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3 .5 m) from either side of the vehicle
*
*
: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side of the vehicle
cannot be detected.
Approximately 3.3 ft. (1 m) forward of the rear bumper
Approximately 9.8 ft. (3 m) from the rear bumper
Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear bumper
*
*
: The greater the difference in speed betwee n your vehicle and the detected vehicle is,
the farther away the vehicle will be detect ed, causing the outside rear view mirror
indicator to illuminate or flash.
BSM function detection areas
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 BSM function is a supplementary function which alerts the driver that a vehicle is in
a blind spot of the outside rear view mirrors or is approaching rapidly from behind into
a blind spot. Do not overly rely on the BSM function. As the function cannot judge if it is
safe to change lanes, over reliance could lead to an accident resulting in death or seri-
ous injury.
As the system may not function correctly under certain conditions, the driver’s own
visual confirmation of safety is necessary.
1
2
3
4

376
LX570_OM_OM60R61U_(U)4-5. Using the driving support systems
■The BSM function is operational when
The BSM function is operational when all of the following conditions are met:
●The BSM function is on.
●The shift lever is in a position other than R.
●The vehicle speed is greater than approximately 10 mph (16 km/h).
■The BSM function will detect a vehicle when
The BSM function will de
tect a vehicle present in the dete ction area in the following situ-
ations:
●A vehicle in an adjacent la ne overtakes your vehicle.
●Another vehicle enters the detection area when it changes lanes.
■Conditions under which the BSM function will not detect a vehicle
The BSM function is not designed to detect the following types of vehicles and/or
objects:
●Small motorcycles, bicycles, pedestrians, etc.*
●Vehicles traveling in the opposite direction
●Guardrails, walls, signs, parked vehi cles and similar stationary objects*
●Following vehicles that are in the same lane*
●Vehicles traveling 2 lanes away from your vehicle*
*
: Depending on the conditions, detection of a vehicle and/or object may occur.

LX570_OM_OM60R61U_(U)
3774-5. Using the driving support systems
4
Driving
■Conditions under which the BSM function may not function correctly
●The BSM function may not detect vehicles correctly in the following situations:
• When the sensor is misaligned due to a strong impact to the sensor or its surround-
ing area
• When mud, snow, ice, a sticke r, etc. is covering the sensor or surrounding area on
the rear bumper
• When driving on a road surf ace that is wet with standing water during bad weather,
such as heavy rain, snow, or fog
• When multiple vehicles are approaching wi th only a small gap between each vehicle
• When the distance between your vehicle and a following vehicle is short
• When there is a significant difference in speed between your vehicle and the vehicle that enters the detection area
• When the difference in speed between your vehicle and another vehicle is changing
• When a vehicle enters a detection area traveling at about the same speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the detection area
• When driving up and down cons ecutive steep inclines, such as hills, dips in the road,
etc.
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When vehicle lanes are wide, or when driving on the edge of a lane, and the vehicle in an adjacent lane is far away from your vehicle
• When a bicycle carrier or other accessory is installed to the rear of the vehicle
• When there is a significant difference in height between your vehicle and the vehicle that enters the detection area
• Immediately after the BSM function is turned on
●Instances of the BSM function unnecessarily detecting a vehicle and/or object may
increase in the following situations:
• When the sensor is misaligned due to a stro ng impact to the sensor or its surround-
ing area
• When the distance between your vehicle and a guardrail, wall, etc. that enters the detection area is short
• When driving up and down cons ecutive steep inclines, such as hills, dips in the road,
etc.
• When vehicle lanes are narrow, or when driv ing on the edge of a lane, and a vehicle
traveling in a lane other than the ad jacent lanes enters the detection area
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When the tires are slipping or spinning
• When the distance between your vehicle and a following vehicle is short
• When a bicycle carrier or other accessory is installed to the rear of the vehicle

378
LX570_OM_OM60R61U_(U)4-5. Using the driving support systems
The RCTA function uses radar sensors to detect vehicles approaching from the
right or left at the rear of the vehicle an
d alerts the driver of the presence of such
vehicles by flashing the outside rear view mirror indicators and sounding a
buzzer.
Approaching vehicles
Detection areas of approaching vehicles
RCTA function
1
2

LX570_OM_OM60R61U_(U)
3794-5. Using the driving support systems
4
Driving
■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 monitor screen
DisplayContent
A vehicle is approaching from the left at the rear of the vehicle
A vehicle is approaching from the right at the rear of the vehicle
Vehicles are approaching from both sides of the vehicle
The RCTA function is malfunctioning ( P. 372)
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.

380
LX570_OM_OM60R61U_(U)4-5. Using the driving support systems
The areas that vehicles can be detected in are outlined below.
The buzzer can alert the driver of faster
vehicles approaching from farther away.
Example:
■The Rear Cross Traffic Alert function is operational when
The Rear Cross Traffic Alert function operates when all of the following conditions are
met:
●The RCTA function is on.
●The shift lever is in R.
●The vehicle speed is less than approximately 5 mph (8 km/h).
●The approaching vehicle speed is between approximately 5 mph (8 km/h) and 18 mph
(28 km/h).
RCTA function detection areas
Approaching vehicleSpeedApproximate
alert distance
Fast18 mph (28 km/h)65 ft. (20 m)
Slow5 mph (8 km/h)18 ft. (5.5 m)
1