LEXUS LS500 2019 Owners Manual

2414-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving When there are no longer any preceding vehicles driving slower than the set
speedThe system accelerates until the set speed is re ached. The system then returns to constant
speed cruising.
1 Press the cruise control main switch
to activate the cruise control.Radar cruise control indicator will come on
and a message will be displayed on the
multi-information displa y. Press the switch
again to deactivate the cruise control.
If the cruise control ma in switch is pressed
and held for 1.5 seconds or more, the sys-
tem turns on in constant speed control
mode. (  P.244)
2 Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-SET” switch to set
the speed.Cruise control “SET” indicator will come
on.
The vehicle speed at the moment the switch is released becomes the set speed.
To change the set speed, press the
“+RES” or “-SET” switch until the
desired set speed is displayed.
1 Increases the speed (Except when
the vehicle has been stopped by
system control in vehicle-to-vehi-
cle distance control mode)
2 Decreases the speed Fine adjustment: Press the switch.
Large adjustment: Pr ess and hold the
switch to change the speed, and release
when the desired speed is reached.
In the vehicle-to-vehicle distance con-
trol mode, the set speed will be Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)
Adjusting the set speed

242 4-5. Using the driving support systems
LS500_OM_(U)_1810 increased or decreased as follows: 
For the U.S. mainland, Hawaii Fine adjustment: By 1 mph (1.6 km/h) *1
or 1
km/h (0.6mph) *2
each time the switch is
pressed
Large adjustment: Increases or decreases
in 1mph (1.6 km/h) *1
or 1 km/h (0.6 mph) *2

increments for as long as the switch is held 
For Canada, Guam and Puerto Rico Fine adjustment: By 1 mph (1.6 km/h) *1
or 1
km/h (0.6mph) *2
each time the switch is
pressed
Large adjustment: Increases or decreases
in 5 mph (8 km/h) *1
or 5 km/h (3.1 mph) *2

increments for as long as the switch is held
In the constant speed control mode
(  P.244), the set speed will be
increased or decreased as follows: Fine adjustment: By 1 mph (1.6 km/h) *1
or 1
km/h (0.6 mph) *2
each time the switch is
pressed
Large adjustment: The speed will continue
to change while the switch is held. *1
: When the set speed is shown in “MPH” *2
: When the set speed is shown in “km/h”
Pressing the switch changes the vehi-
cle-to-vehicle distance as follows: 1 Long
2 Medium
3 Short The vehicle-to-vehicle distance is set auto-
matically to long mode when the engine
switch is turned to IGNITION ON mode.
If a vehicle is running ahead of you, the pre-
ceding vehicle mark will also be dis-
played.
Select a distance from the table below.
Note that the distances shown corre-
spond to a vehicle speed of 50 mph
(80 km/h). Vehicle-to-vehicle distance
increases/decreases in accordance
with vehicle speed. When the vehicle is
stopped by system control, the vehicle
stops at a certain vehicle-to-vehicle
distance depending on the situation.Changing the vehicle-to-vehicle
distance (vehicle-to-vehicle dis-
tance control mode) Vehicle-to-vehicle distance set-
tings (vehicle-to-vehicle dis-
tance control mode)
Distance
options Vehicle-to-vehicle dis-
tance
Long Approximately 160 ft. (50
m) A

2434-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving
After the vehicle ahead of you starts
off, press the “+RES” switch.
Your vehicle will also resume follow-up
cruising if the accelerator pedal is
depressed after the vehicle ahead of
you starts off. 1 Pressing the cancel switch cancels
the speed control. The speed control is also canceled when
the brake pedal is depressed. (When the
vehicle has been stopped by system con-
trol, depressing the brake pedal does not
cancel the setting.)
2 Pressing the “+RES” switch
resumes the cruise control and
returns vehicle speed to the set
speed.
When your vehicle is too close to a
vehicle ahead, and sufficient automatic
deceleration via the cruise control is
not possible, the display will flash and
the buzzer will sound to alert the driver.
An example of this would be if another
driver cuts in front of you while you are
following a vehicle. Depress the brake
pedal to ensure an appropriate vehi-
cle-to-vehicle distance.Medium Approximately 130 ft. (40
m)
Short Approximately 100 ft. (30
m)
Resuming follow-up cruising
when the vehicle has been
stopped by system control (vehi-
cle-to-vehicle distance control
mode) Distance
options Vehicle-to-vehicle dis-
tance
Canceling and resuming the
speed control
Approach warning (vehi-
cle-to-vehicle distance control
mode)

244 4-5. Using the driving support systems
LS500_OM_(U)_1810 ■
Warnings may not occur when
In the following instances, warnings
may not occur even when the vehi-
cle-to-vehicle distance is small.
 When the speed of the preceding
vehicle matches or exceeds your
vehicle speed
 When the preceding vehicle is trav-
eling at an extremely slow speed
 Immediately after the cruise control
speed was set
 When depressing the accelerator
pedal
When constant speed control mode is
selected, your vehicle will maintain a
set speed without controlling the vehi-
cle-to-vehicle distance. Select this
mode only when vehicle-to-vehicle dis-
tance control mode does not function
correctly due to a dirty radar, etc.
1 With the cruise control off, press
and hold the cruise control main
switch for 1.5 seconds or more.Immediately after the switch is pressed, the
radar cruise control in dicator will come on.
Afterwards, it switches to the cruise con- trol indicator.
Switching to constant speed control mode
is only possible when operating the switch
with the cruise control off.
2 Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-SET” switch to set
the speed. Cruise control “SET” indicator will come
on.
The vehicle speed at the moment the
switch is released becomes the set speed.
Adjusting the speed setting:  P.241
Canceling and resuming the speed setting:
 P.243
■
Dynamic radar cruise control with
full-speed range can be set when
●
The shift position is in D.
●
Range 4 or higher of D has been selected
by using the paddle shift switch.
●
The desired set spee d can be set when
the vehicle speed is approximately 20 Selecting constant speed con-
trol mode

2454-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving mph (30 km/h) or more.
(However, when the vehicle speed is set
while driving at below approximately 20
mph [30 km/h], the set speed will be set
to approximately 20 mph [30 km/h].)■
Accelerating after setting the vehicle
speed
The vehicle can accelerate by operating the
accelerator pedal. After accelerating, the
set speed resumes. However, during vehi-
cle-to-vehicle distance control mode, the
vehicle speed may decrease below the set
speed in order to maintain the distance to
the preceding vehicle. ■
When the vehicle stops while follow-up
cruising●
Pressing the “+RES” switch while the
vehicle ahead stops w ill resume follow-up
cruising if the vehicle ahead starts off
within approximately 3 seconds after the
switch is pressed.●
If the vehicle ahead starts off within 3 sec-
onds after your vehicle stops, follow-up
cruising will be resumed.■
Automatic cancelation of vehi-
cle-to-vehicle distance control mode
Vehicle-to-vehicle dist ance control mode is
automatically canceled in the following situ-
ations. ●
VSC is activated.●
TRAC is activated for a period of time.●
When the VSC or TRAC system is
turned off.●
When snow mode is set.●
The sensor cannot detect correctly
because it is covered in some way.
●
Pre-collision braking is activated.
●
The parking brake is operated.
●
The vehicle is stopped by system control
on a steep incline.
●
The following are detected when the
vehicle has been stopped by system con-
trol:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3
minutes. If vehicle-to-vehicle distance control mode
is automatically canceled for any reasons
other than the above, there may be a mal-
function in the system. Contact your Lexus
dealer. ■
Automatic cancelation of constant
speed control mode
Constant speed control mode is automati-
cally canceled in the following situations: ●
Actual vehicle speed is more than
approximately 10 mph (16 km/h) below
the set vehicle speed. ●
Actual vehicle speed falls below approxi-
mately 20 mph (30 km/h). ●
VSC is activated. ●
TRAC is activated for a period of time. ●
When the VSC or TRAC system is
turned off. ●
Pre-collision braking is activated.
If constant speed control mode is automati-
cally canceled for any reasons other than
the above, there may be a malfunction in the
system. Contact your Lexus dealer. ■
Brake operation
A brake operation sound may be heard and
the brake pedal response may change, but
these are not malfunctions. ■
Warning messages and buzzers for
dynamic radar cruise control with
full-speed range
Warning messages and buzzers are used to
indicate a system malfunction or to inform
the driver of the need for caution while driv-
ing. If a warning messa ge is shown on the
multi-information displa y, read the message
and follow the instruc-
tions.(  P.196,202,425)
■
When the sensor may not be correctly
detecting the vehicle ahead
In the case of the fo llowing and depending
on the conditions, operate the brake pedal
when deceleration of the system is insuffi-
cient or operate the accelerator pedal
when acceleration is required.
As the sensor may not be able to correctly
detect these types of vehicles, the approach
warning (  P.243) may not be activated.

246 4-5. Using the driving support systems
LS500_OM_(U)_1810 ●
Vehicles that cut in suddenly●
Vehicles traveling at low speeds●
Vehicles that are not moving in the same
lane●
Vehicles with small rear ends (trailers
with no load on board, etc.)
●
Motorcycles travelin g in the same lane●
When water or snow thrown up by the
surrounding vehicles hinders the detect-
ing of the sensor●
When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
●
Preceding vehicle has an extremely high
ground clearance
■
Conditions under which the vehi-
cle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions,
operate the brake pedal (or accelerator
pedal, depending on the situation) as nec-
essary.
As the sensor may not be able to correctly detect vehicles ahead, the system may not
operate properly. ●
When the road curves or when the lanes
are narrow
●
When steering wheel operation or your
position in the lane is unstable
●
When the vehicle ahead of you deceler-
ates suddenly ●
When driving on a road surrounded by a
structure, such as in a tunnel or on a
bridge ●
While the vehicle speed is decreasing to
the set speed after the vehicle acceler-
ates by depressing the accelerator pedal

2474-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving *
:If equipped
The RSA system recognizes specific
road signs using the front camera
and/or navigation system (when data is
available) to provide information to the
driver via the display.
When the front camera recognizes a
sign and/or informat ion of a sign is available from navigation system, the
sign will be displayed on the
multi-information display.
 When the Driving support system
information display is selected, a
maximum of 3 signs can be dis-
played. (  P.80)
 When a tab other than the Driving
support system information display
is selected, only a recognized speed
limit sign or do not enter sign (when
notification is necessary) will be dis-
played. (  P.80)
If signs other than speed limit signs are rec-
ognized, they will be displayed in an over-
lapping stack under th e current speed limit
sign.
The following types of ro ad signs are recognized.
A non-official or recently introduced traffic signs may not be recognized.RSA (Road Sign Assist) *
Summary of function
WARNING■
Before using the RSA
Do not rely solely upon the RSA system.
RSA is a system which supports the
driver by providing information, but it is
not a replacement for a driver’s own
vision and awareness. Drive safely by
always paying careful attention to the
traffic rules.
Indication on the multi-informa-
tion display
Supported types of road signs

248 4-5. Using the driving support systems
LS500_OM_(U)_1810 In the following situations, the RSA sys-
tem will alert the driver.
 When the vehicle speed exceeds
the speed warning threshold of the
speed limit sign displayed, the sign
display will be emphasized and a
buzzer will sound.
 When the RSA system recognizes a
do not enter sign and determines
that your vehicle has entered a
no-entry area, the displayed sign will
flash and a buzzer will sound.
Depending on the situation, traffic
environment (traffic direction, speed
unit) may be detected incorrectly and a
warning display may not operate prop-
erly. ■
Setting procedure
1 Press or of the meter control
switches and select .
2 Press or of the meter control
switches and select “Vehicle Settings”,
then press .
3 Press or of the meter control
switches and select , then press
.
4 Press or of the meter control
switches and select “RSA”, then press
.
■
Automatic turn-off of RSA sign display
In the following situations, a displayed
speed limit sign will stop being displayed
automatically:
●
A new sign is not recognized for a certain
distance.
In the following situations, do not enter, stop
and yield signs will stop being displayed
automatically:
●
The system determines that your vehicle
has passed the sign.
●
The road changes due to a left or right Type Multi-information display
Speed limit
Do Not Enter
Stop
Yield
Warning display

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