display LEXUS LS500 2019 Owners Manual

2334-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving Indicates that steering wheel assist of the
lane change assist function is operating.
 Approaching vehicle warning dis-
play Indicates that an approaching vehicle is
detected in the adjacent lane. ■
Warning display (vehicles with
Lexus Safety System + A)
When the lane centering function is oper-
ating and the system determines that the
vehicle may depart from its lane due to a
sharp curve, etc., a warning display urging
the driver to operate the steering wheel,
will be displayed.
This display will also be displayed when
operation of the lane change assist func-
tion is canceled.
In some situations a warning display may
not be displayed. Some displays, which are the same as
those displayed on the multi-informa-
tion display, will be displayed. ■
LTA system curve display on the
head-up display
The curve display on the head-up display
changes according to the direction and
curvature of the curve.
■
Operation conditions of each function ●
Lane departure alert function
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Vehicle speed is ap proximately 32 mph
(50 km/h) or more. *1
• System recognizes white (yellow) lane
lines or a course *2
. (When a white [yel-
low] line or course *2
is recognized on
only one side, the system will operate
only for the recognized side.)
• Width of traffic lane is approximately 9.8
ft. (3 m) or more.
• Turn signal lever is not operated. (Except
when a vehicle is in the lane on the side
the turn signal was operated)
• Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected.
(  P.237) *1
: The function operates even if the vehi-Indications on head-up display
(vehicles with Lexus Safety Sys-
tem + A)

234 4-5. Using the driving support systems
LS500_OM_(U)_1810 cle speed is less than approximately 32
mph (50 km/h) when the lane center-
ing function is operating. *2
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb●
Steering assist function
This function operates when all of the fol-
lowing conditions are me t in addition to the
operation conditions for the lane depar-
ture alert function.
•Setting for “Steering Assist” in of the
multi-information display is set to “ON”.
(  P.80)
• Vehicle is not accelerated or decelerated
by a fixed amount or more.
• Steering wheel is not operated with a
steering force level su itable for changing
lanes.
• ABS, VSC, TRAC and PCS are not oper-
ating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not
displayed. (  P.236)●
Vehicle sway warning function
This function operates when all of the fol-
lowing conditions are met.
• Setting for “Sway Warning” in of the
multi-information display is set to “ON”.
(  P.80)
• Vehicle speed is approximately 32 mph
(50 km/h) or more.
• Width of traffic lane is approximately 9.8
ft. (3 m) or more.
• No system malfunctions are detected.
(  P.237)
●
Lane centering function
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Setting for “Steering Assist” and “Lane
Center” in of the multi-information
display are set to “ON”. (  P.80)
• This function recognizes white (yellow)
lane lines or the position of a preceding
vehicle (except when the preceding vehi-
cle is small, such as a motorcycle).
• The dynamic radar cruise control with full-speed range is operating in vehi-
cle-to-vehicle distance control mode.
• Width of traffic lane is approximately 10
to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected.
(  P.237)
• Vehicle does not ac celerate or deceler-
ate by a fixed amount or more.
• Steering wheel is not operated with a
steering force level su itable for changing
lanes.
• ABS, VSC, TRAC and PCS are not oper-
ating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not
displayed. (  P.236)
• The driver has one or both hands on the
steering wheel.
• The vehicle is being driven in the center
of a lane.
• Steering assist function is not operating. ●
Lane change assist fu nction (vehicles with
Lexus Safety System + A)
This function will operate when all of the
following conditions are met:
• The lane centering function is operating.
• “Lane Change Assist” is set to “ON” in
of the multi-information dis-
play.(  P.80)
• The vehicle speed is between approxi-
mately 57 and 85 mph (90 and 140
km/h).
• White (yellow) lane lines are detected by
the system.
• A broken white line is detected between
your vehicle and the lane toward which
the turn signal is operated.
• The turn signal lever is held partway (lane
change position) for approximately 1 sec-
ond.
• A vehicle is not overtaking your vehicle
or detected in the lane toward which the
turn signal is operated.
• The vehicle is being driven straight or
around a slight curve.
• The vehicle is not a ccelerating or decel-
erating more than a certain amount.
• The steering wheel is not being turned
sufficiently to perf orm a lane change.

2354-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving • ABS, VSC, TRAC and PCS are not oper-
ating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not
displayed. (  P.236)
• The dynamic radar cruise control with
full-speed range approach warning is not
operating.
• The lane departure alert function is not
operating.■
Temporary cancellation of functions●
When operation conditions are no longer
met, a function may be temporarily can-
celed. However, when the operation con-
ditions are met again, operation of the
function is automa tically restored.
(  P.233)●
If the operation conditions (  P.233) are
no longer met while the lane centering
function is operating, the steering wheel
may vibrate and the buzzer may sound to
indicate that the function has been tem-
porarily canceled. However, if the “Alert”
customization setting is set to ,
the system will notify the driver by vibrat-
ing the steering wheel instead of sound-
ing the buzzer.●
If the operating conditions (  P.233) are
no longer met, the lane change assist
function will be canceled. (vehicles with
Lexus Safety System + A)
If a message urging operation of the steer-
ing wheel is displayed, operate the steering
wheel. ■
Steering assist function/lane centering
function●
Depending on the vehicle speed, lane
departure situation, road conditions, etc.,
the driver may not feel the function is
operating or the function may not oper-
ate at all.
●
The steering control of the function is
overrided by the driver’s steering wheel
operation.
●
When the vehicle speed is approximately
31 mph (50 km/h) or less, the warning
display of the lane ce ntering function will
not operate.
●
Do not attempt to test the operation of the steering assist function. ●
The steering assist function may operate
when attempting to cut closely in front of
another vehicle while changing lanes.■
Lane departure alert function ●
The warning buzzer may be difficult to
hear due to external noise, audio play-
back, etc. Also, it may be difficult to feel
steering wheel vibrations due to the road
conditions, etc. ●
If the edge of the course *
is not clear or
straight, the lane departure alert function
may not operate. ●
It may not be possible for the system to
determine if there is a danger of a colli-
sion with a vehicle in an adjacent lane. ●
Do not attempt to test the operation of
the lane departure alert function. ●
This function may operate if, when chang-
ing lanes, your vehicle cuts closely in front
of another vehicle. *
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb ■
Lane change assist function (vehicles
with Lexus Safety System + A)
Depending on the vehicle speed, vehicle
condition, road conditions, or conditions of
the area around the vehicle, the lane
change assist function may not operate or it
may be difficult to recognize that it has
operated.
If steering control oper ation is excessive or
insufficient, it can be corrected by the
driver’s operation of the steering wheel.
In situations such as the following, the lane
change assist function may be canceled:
●
When the system no longer detects white
(yellow) lane lines
●
When the turn signal lever is operated
fully (right/left turn position)
●
When the vehicle speed is outside of the
operational range of the function
●
When the system detects operation of
the steering wheel, brake or accelerator
pedal by the driver
While the lane change assist function is

236 4-5. Using the driving support systems
LS500_OM_(U)_1810 operating, if the system detects that a vehi-
cle is quickly approaching in the lane
toward which the turn signal is operated,
the steering assist may slightly steer the
vehicle away from the lane while a buzzer is
sounding, the steering wheel is vibrating,
and a warning display is displayed on the
multi-information display, to help prevent
the vehicle from entering the lane and alert
the driver of the approaching vehicle. ■
Hands off steering wheel alert
In the following situations, a warning mes-
sage urging the driver to hold the steering
wheel and the symbol shown in the illustra-
tion are displayed on the multi-information
display to warn the driver. The warning
stops when the system determines that the
driver holds the steering wheel. Always
keep your hands on the steering wheel
when using this system, regardless of warn-
ings.
Depending on the vehicle condition and
road conditions, the warning may not oper-
ate. Also, if the system determines that the
vehicle is driving around a curve, warnings
will occur earlier than during straight-lane
driving.
●
When the system determines that the
driver is driving without holding the steer-
ing wheel while the sy stem is operating
If the driver continue s to keep their hands
off of the steering wheel, the buzzer
sounds, the driver is warned and the func-
tion is temporarily ca nceled. This warning
also operates in the same way when the
driver continuously operates the steering
wheel only a small amount.
The buzzer also sounds even if the alert
type is set to .
●
When the system determines that the
vehicle may not turn and instead depart from its lane while driving around a curve
(vehicles with Lexus Safety System + 2.0) ●
When the system determines that the
driver is driving with out holding the steer-
ing wheel while the st eering wheel assist
of the steering assist function is operating
(vehicles with Lexus Safety System + 2.0)
If the driver continues to keep their hands
off of the steering wheel and the steering
wheel assist is operating, the buzzer
sounds and the driver is warned. Each time
the buzzer sounds, the continuing time of
the buzzer becomes longer.
The buzzer also sounds even if the alert
type is set to .
In situations such as the following, the sys-
tem may not be able to detect when the
driver’s hands are on the steering wheel
(vehicles with Lexus Safety System + A): ●
If a steering wheel cover is installed. ●
If the driver is wearing gloves. ●
If something is attached to the steering
wheel. ●
If the driver is gripping the wood trim,
stitched area, spokes, or other part of the
steering wheel that does not have sen-
sors.
In situations such as the following, the hands
off steering wheel alert may not operate
and the steering assist function and lane
centering function may operate even if the
driver’s hands are off the steering wheel
(vehicles with Lexus Safety System + A): ●
If an object contacts the steering wheel. ●
If a wide object or ar ms are held in front
of the steering wheel.
■
Vehicle sway warning function
When the system determines that the vehi-
cle is swaying while the vehicle sway warn-
ing function is operating, a buzzer sounds
and a warning message urging the driver to
rest and the symbol sh own in the illustration
are simultaneously displayed on the
multi-information display.

2374-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving Depending on the vehicle and road condi-
tions, the warning may not operate. ■
Warning message
If the following warning message is dis-
played on the multi-information display and
the LTA indicator illumin ates in orange, fol-
low the appropriate troubleshooting proce-
dure. Also, if a different warning message is
displayed, follow the in structions displayed
on the screen. ●
“LTA Malfunction Visit Your Dealer”
The system may not be operating properly.
Have the vehicle inspected at your Lexus
dealer. ●
“LTA Unavailable”
The system is temporarily canceled due to
a malfunction in a se nsor other than the
front camera. Turn the LTA system off, wait
for a little while, and then turn the LTA sys-
tem back on. ●
“LTA Unavailable at Current Speed”
The function cannot be used as the vehicle
speed exceeds the LTA operation range.
Drive slower. ■
Customization
Function settings can be changed.
(  P.466) ■
Meter display
Multi-information display
Set speed
IndicatorsDynamic radar cruise con-
trol with full-speed range In vehicle-to-vehicle distance con-
trol mode, the ve hicle automati-
cally accelerates, decelerates and
stops to match the speed changes
of the preceding vehicle even if the
accelerator pedal is not depressed.
In constant speed control mode,
the vehicle runs at a fixed speed.
Use the dynamic radar cruise con-
trol with full-speed range on free-
ways and highways.
 Vehicle-to-vehicle distance con-
trol mode (  P.240)
 Constant speed control mode
(  P.244)
System Components
A
B
C

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

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)

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)