2019 LEXUS LS500 Owners Manual

2494-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving turn, etc.■
Conditions in whic h the function may
not operate or detect correctly
In the following situations, RSA does not
operate normally and may not recognize
signs, display the incorrect sign, etc. How-
ever, this does not indicate a malfunction. ●
The front camera is misaligned due to a
strong impact being applied to the sen-
sor, etc.●
Dirt, snow, stickers, etc. are on the wind-
shield near the front camera.●
In inclement weather such as heavy rain,
fog, snow or sand storms●
Light from an oncoming vehicle, the sun,
etc. enters the front camera.●
The sign is dirty, faded, tilted or bent.●
All or part of the sign is hidden by the
leaves of a tree, a pole, etc.●
The sign is only visible to the front camera
for a short amount of time.●
The driving scene (turning, lane change,
etc.) is judged incorrectly.●
Even if it is a sign not appropriate for the
currently traveled lane, such a sign exists
directly after a freeway branches, or in an
adjacent lane just before merging.●
Stickers are attached to the rear of the
preceding vehicle.●
A sign resembling a system compatible
sign is recognized.●
Side road speed signs may be detected
and displayed (if positioned in sight of the
front camera) while the vehicle is travel-
ing on the main road.
●
Roundabout exit road speed signs may
be detected and displayed (if positioned
in sight of the front camera) while travel-
ing on a roundabout.
●
The front of the vehicle is raised or low-
ered due to the carried load.
●
The surrounding brightness is not suffi-
cient or changes suddenly.
●
When a sign intended for trucks, etc. is
recognized. ■
Speed limit sign display
If the engine switch wa s last turned off while
a speed limit sign was displayed on the
multi-information display, the same sign dis-
plays again when the engine switch is
turned to IGNITION ON mode. ■
Customization
Some functions can be customized. (Cus-
tomizable features:  P.466)

250 4-5. Using the driving support systems
LS500_OM_(U)_1810 *
:If equipped
Meter control switchesTurning the Blind Spot Monitor on/off. Outside rear view mirror indicators When a vehicle is dete cted in a blind spot
of the outside rear view mirrors or
approaching rapidly from behind into a
blind spot, the outside rear view mirror
indicator on the detected side will illumi-
nate. If the turn signal lever is operated
toward the detected side, the outside rear
view mirror indicator flashes.
BSM indicator Illuminates when the Blind Spot Monitor is
enabled ■
Outside rear view mirror indicator visi-
bility
In strong sunlight, the outside rear view mir-
ror indicator may be difficult to see. ■
When “BSM Not Available” is shown on
the multi-information display
Ice, snow, mud, etc., may be attached to the
rear bumper around the sensors. (  P.251)
The system should return to normal opera-
tion after removing the ice, snow, mud, etc.
from the rear bumper. Additionally, the sen-
sors may not operate normally when driving
in extremely hot or cold environments. ■
Customization
Some functions can be customized.
(  P.466)BSM (Blind Spot Monitor) *
The Blind Spot Monitor is a system
that uses rear side radar sensors
installed on the inner side of the
rear bumper on the left and right
side to assist the driver in confirm-
ing safety when changing lanes. WARNING■
Cautions regarding the use of the sys-
tem
The driver is solely responsible for safe
driving. Always driv e safely, taking care
to observe your surroundings.
The Blind Spot Monitor is a supplemen-
tary function which alerts the driver that a
vehicle is in a blind spot of the outside
rear view mirrors or is approaching rap-
idly from behind into a blind spot. Do not
overly rely on the Blind Spot Monitor. As
the function cannot judge if it is safe to
change lanes, over reliance could lead to
an accident resulting in death or serious
injury.
As the system may not function correctly
under certain conditions, the driver’s own
visual confirmation of safety is necessary.
System components
A B
C

2514-5. Using the driving support systems
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Driving ■
Certification 
For vehicles sold in the U.S.A. , Hawaii, Guam and Puerto Rico
For vehicles sold in Canada
WARNING
■
Handling the rear side radar sensor
Blind Spot Monitor se nsors are installed
behind the left and right sides of the rear
bumper respectively. Observe the fol-
lowing to ensure the Blind Spot Monitor
can operate correctly.

252 4-5. Using the driving support systems
LS500_OM_(U)_1810 Use the meter control switches to turn
on/off the function.
1 Press or to select .
2 Press or to select and
then press .WARNING●
Keep the sensors and the surrounding
areas on the rear bumper clean at all
times.
If a sensor or its su rrounding area on the
rear bumper is dirty or covered with
snow, the Blind Spot Monitor may not
operate and a warning message
(  P.250) will be displayed. In this situa-
tion, clear off the dirt or snow and drive
the vehicle with the operation conditions
of the BSM function (  P.254) satisfied
for approximately 10 minutes. If the
warning message does not disappear,
have the vehicle inspected by your Lexus
dealer.
●
Do not attach accessories, stickers
(including transparen t stickers), alumi-
num tape, etc. to a sensor or its sur-
rounding area on the rear bumper.
●
Do not subject a sensor or its sur-
rounding area on the rear bumper to a
strong impact.
If a sensor is moved even slightly off
position, the system may malfunction
and vehicles may not be detected cor-
rectly.
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 them
has become disconnected.
●
Do not disassemb le the sensor. ●
Do not modify the sensor or surround-
ing area on the rear bumper. ●
If a sensor or the rear bumper needs to
be removed/installed or replaced,
contact your Lexus dealer. ●
Do not paint the rear bumper any
color other than an official Lexus color.
Turning the Blind Spot Monitor
on/off

2534-5. Using the driving support systems
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Driving ■
Vehicles that can be detected by the Blind Spot Monitor
The Blind Spot Monitor uses rear side ra dar sensors to detect the following vehi-
cles traveling in adjacent lanes and advises the driver of the presence of such vehi-
cles via the indicators on th e outside rear view mirrors.
Vehicles that are traveling in areas that 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) ■
The Blind Spot Monitor detection areas
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 *1
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 19 7 ft. (60 m) from the rear bumper *2*1
: The area between the side of the vehicle and 1.6 ft. (0.5 m) from th e side of the vehicle
cannot be detected. *2
: The greater the difference in speed between your vehicle and the detected vehicle is, Blind Spot Monitor operation
A
B
A
B
C
D

254 4-5. Using the driving support systems
LS500_OM_(U)_1810 the farther away the vehicle will be detected, caus ing the outside rear view mirror indi-
cator to illuminate or flash.■
The Blind Spot Monitor is operational
when
The Blind Spot Monitor is operational when
all of the following conditions are met: ●
The Blind Spot Monitor is on.●
The shift position is in a position other
than R.●
The vehicle speed is greater than approx-
imately 10 mph (16 km/h).■
The Blind Spot Monitor will detect a
vehicle when
The Blind Spot Monitor will detect a vehicle
present in the detection area in the follow-
ing situations: ●
A vehicle in an adj acent lane overtakes
your vehicle.●
You overtake a vehicle in an adjacent lane
slowly.●
Another vehicle enters the detection
area when it changes lanes.■
Conditions under wh ich the Blind Spot
Monitor will not detect a vehicle
The Blind Spot Monitor is not designed to
detect the following types of vehicles and/or
objects: ●
Small motorcycles, bicycles, pedestrians,
etc. *
●
Vehicles traveling in the opposite direc-
tion●
Guardrails, walls, signs, parked vehicles
and similar stationary objects *
●
Following vehicles th at are in the same
lane *
●
Vehicles traveling 2 lanes away from your
vehicle *
●
Vehicles which are being overtaken rap-
idly by your vehicle *
*
: Depending on the conditions, detection
of a vehicle and/or object may occur. ■
Conditions under which the Blind Spot
Monitor may not function correctly ●
The Blind Spot Monitor may not detect
vehicles correctly in the following situa-
tions:
• When the 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 the sensor or 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
• 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 vehi-
cle 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 vehi-
cle remains in the detection area
• When driving up and down consecutive
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 an accessory (such as a bicycle
carrier) is installed to the rear of the vehi-
cle
• When there is a significant difference in
height between your vehicle and the
vehicle that enters the detection area
• Immediately after the Blind Spot Monitor
is turned on
●
Instances of the Blind Spot Monitor
unnecessarily detecting a vehicle and/or
object may increase in the following situ-

2554-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving ations:
• When the sensor is misaligned due to a
strong impact to the sensor or its sur-
rounding area
• When the distance between your vehicle
and a guardrail, wall, etc. that enters the
detection area is short
• When driving up an d down consecutive
steep inclines, such as hills, dips in the
road, etc.
• When vehicle lanes are narrow, or when
driving on the edge of a lane, and a vehi-
cle traveling in a lane other than the adja-
cent 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 an accessory (such as a bicycle
carrier) is installed to the rear of the vehi-
cle *
: If equipped
■
Intuitive parking assist (if
equipped)
Ultrasonic sensors are used to detect
static objects in the detection area
when driving at a low speed or backing
up. (  P.257) ■
RCTA (Rear Cross Traffic Alert)
function (if equipped)
Radar sensors are used to detect
approaching vehicles in the detection
areas behind the vehicle when backing
up. (  P.263) ■
RCD (Rear camera detection)
function (if equipped)
A rear camera sensor is used to detect
pedestrians in the detection area
behind the vehicle when backing up.
(  P.267)PKSA (Parking Support
Alert) *
The Parking Support Alert system
consists of the following functions
that operate when driving at a low
speed or backing up, such as when
parking. When the system deter-
mines that a collision with a
detected object, such as a wall, or
pedestrian is high, a warning oper-
ates to urge the driver to take eva-
sive action.
PKSA (Parking Support Alert)
system

256 4-5. Using the driving support systems
LS500_OM_(U)_1810 ■
Adjusting the buzzer volume
The buzzer volume can be adjusted on
the multi-information display. The vol-
ume of buzzers for the intuitive parking
assist, RCTA function and RCD func-
tion will be adjusted simultaneously.
Use the meter control switches to
change settings. (  P.81)
1 Press or to select .
2 Press or to select “PKSA”
and then press .
3 Press or to select and
then press .Each time the switch is pressed, the volume
level will change between 1, 2, and 3. ■
Muting a buzzer
A mute button will be displayed on the
multi-information display when an
object or pedestrian is detected. To
mute the buzzer, press .
The buzzers for the intuitive parking
assist, RCTA function and RCD func-
tion will be muted simultaneously.
Mute will be canceled automatically in
the following situations:
 When the shift position is changed.
 When the vehicle speed exceeds a
certain speed.
 When the operating function is tem-
porarily canceled.
 When the operating function is dis-
abled manually.
 When the engine switch is turned off.
Setting the buzzer volume