2018 Lexus LC500 change time

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4-5. Using the driving support systems
Driving
If a different warning message is displayed, follow the instructions displayed on the screen.
■Customization
The following settings can be changed.
For how to change settings, refer to P.423.“Lane Keep-
ing Assist
Unavailable”
The LKA system is tempo-
rarily canceled due to a
malfunction in a sensor
other than the camera
sensor.
 Turn the LKA system
off and follow the appro-
priate troubleshooting
procedures for warning
messages. Afterward,
drive the vehicle for a
short time, and then turn
the LKA system back on.
“Lane Keep-
ing Assist
Unavailable
Below
Approx
50km/h”
The LKA system cannot
be used as the vehicle
speed is less than approxi-
mately 50 km/h (32
mph).
 Drive the vehicle at
approximately 50 km/h
(32 mph) or more.
“Lane Keep-
ing Assist
Unavailable at
Current
Speed”
The LKA system cannot
be used as the vehicle
speed is too high.
 Slow down.
FunctionSetting details
Lane depar-
ture alert
function
Adjust alert sensitivity
Steering
assist function
Turn steering wheel assis-
tance on and off
Warning mes-
sageDetails/Actions
Vehicle sway
warning func-
tion
Turn function on and off
Adjust alert sensitivity
Lane center-
ing functionTurn function on and off
FunctionSetting details

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4-5. Using the driving support systems
In the following situations, the RSA sys-
tem alerts the driver using a warning
display.
 When the vehicle speed exceeds
the speed warning threshold
applied to the speed limit of the sign
displayed on the multi-information
display, the sign color becomes
inverted.
 If it is detected that your vehicle is
overtaking when a no overtaking
sign is displayed on the multi-infor-
mation display, the sign flashes.
 Vehicles with navigation system:
When the RSA system recognizes a
no-entry sign and detects that the
vehicle has entered a no-entry area
based on the map information of the
navigation system, the no-entry sign
flashes.
Depending on the situation, traffic
environment (traffic direction, speed,
unit) may be detected incorrectly and a
warning display may not operate prop-
erly.
■Automatic turn-off of RSA sign display
One or more signs automatically turn off in the following situations.
●A new sign is not recognized for a certain distance.
●The road changes due to a left or right turn, etc.
■Conditions in which 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 camera sensor 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 camera sensor.
●In inclement weather such as heavy rain, fog, snow or sand storms
●Light from an oncoming vehicle, the sun, etc. enters the camera sensor.
●The sign is dirty, faded, tilted or bent, and if an electronic sign, the contrast is poor.
●All or part of the sign is hidden by the leaves of a tree, a pole, etc.
●The sign is only visible to the camera sen-sor 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.
●The vehicle is driven in a country with a different direction of traffic.
●Side road speed signs may be detected and displayed (if positioned in sight of the
camera sensor) while the vehicle is trav- eling on the main road.
●Roundabout exit road speed signs may be detected and displayed (if positioned in sight of the camera sensor) while trav-
eling on a roundabout.
●Vehicles without navigation system: The
speed information displayed on the meter and that displayed on the naviga-tion system may be different due to the
navigation system using map data.
■When driving vehicle in country with dif- ferent speed unit
Since RSA recognizes signs based on the set unit of the meter, it is necessary to
Warning display

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4-5. Using the driving support systems
This mode employs a radar sensor to detect the presence of vehicles up to approx-
imately 100 m (328 ft.) ahead, determines the current vehicle-to-vehicle following
distance, and operates to maintain a suitable following distance from the vehicle
ahead.
Note that vehicle-to-vehicle distance will clos e in when traveling on long downhill slopes.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver. The desired vehicle-to-vehicle distance
can also be set by operating the vehicle-to-vehicle distance switch.
Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appears
When a vehicle is detected running ahead of you, the system automatically decelerates
your vehicle. When a greater reduction in ve hicle speed is necessary, the system applies
the brakes (the stop lights will come on at th is time). The system will respond to changes in
the speed of the vehicle ahead in order to maintain the vehicle-to-vehicle distance set by
the driver. Approach warning warns you when the system cannot decelerate sufficiently to
prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you stops, your vehi cle will also stop (vehicle is stopped by sys-
tem control). After the vehicle ahead starts off, pressing the +/RES switch or depressing the
accelerator pedal will resume follow-up cruising.
WARNING
●When an approach warning buzzer is heard often
Driving in vehicl e-to-vehicle distance control mode
A
B

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4-5. Using the driving support systems
Large adjustment: Press 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
increased or decreased as follows:
For Europe
Fine adjustment: By 5 km/h (3.1 mph)*1 or
5 mph (8 km/h)*2 each time the switch is
pressed
Large adjustment: Increases or decreases
in 5 km/h (3.1 mph)*1or 5 mph (8 km/h)*2
increments for as long as the switch is held
Except for Europe
Fine adjustment: By 1 km/h (0.6 mph)*1 or 1
mph (1.6 km/h)*2 each time the switch is
pressed
Large adjustment: Increases or decreases
in 5 km/h (3.1 mph)*1 or 5 mph (8 km/h)*2
increments for as long as the switch is held
In the constant speed control mode
( P.236), the set speed will be
increased or decreased as follows:
Fine adjustment: By 1 km/h (0.6 mph)*1 or 1
mph (1.6 km/h)*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 “km/h”
*2: When the set speed is shown in “MPH”
Pressing the vehicle-to-vehicle dis-
tance switch changes the vehicle-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 IGNI-
TION 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 80 km/h
(50 mph). 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)
A

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4-5. Using the driving support systems
1Press the cruise control main switch
to activate the cruise control.
Cruise control indicator will come on. Press the switch again to deactivate the
cruise control.
2 Accelerate or decelerate the vehi-
cle to the desired speed, 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 obtained.
1 Increases the speed
2 Decreases the speed
Fine adjustment: Press the switch in the
desired direction.
Large adjustment: Press and hold switch.
The set speed will be increased or
decreased as follows:
Fine adjustment: By approximately 1 km/h
(0.6 mph) each time the switch is pressed.
Large adjustment: The set speed can be
increased or decreased continually until
the switch is released.
1 Pressing the cancel switch cancels
the constant speed control.
The speed setting is also canceled when
the brakes are applied.
2 Pressing the +/RES switch resumes
the constant speed control.
Setting the vehicle speed
Adjusting the set speed
Canceling and resuming the
constant speed control

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4-5. Using the driving support systems
1Normal mode/Custom mode
Normal mode and custom mode are
selected by pressing the driving mode
select switch. Each time the switch is
pressed, the driving mode changes
between normal mode and custom mode.
When custom mode is selected, the “Cus-
tom” indicator comes on.
Press the switch to change the driving
mode to normal mode when not in normal
mode.
• Normal mode
Provides an optimal balance of fuel econ-
omy, quietness, and dynamic performance.
Suitable for city driving.
When the shift position is in D, an appropri-
ate gear for sporty driving may automati-
cally be selected according to driver
performance and driving conditions.
• Custom mode
Allows you to drive with the power train,
chassis and air conditioning system func-
tions set to your preferred settings.
Custom mode settings can only be
changed on the drive mode customization
display of Center Display. ( P.275)
2Comfort mode
By controlling the suspension, riding com-
fort is further enhanced. Suitable for city
driving.
When not in comfort mode and the driving
mode select switch is turned forward, the
“Comfort” indicator comes on.
3 Eco drive mode
Helps the driver accelerate in an eco-
friendly manner and improve fuel economy
through moderate throttle characteristics
and by controlling the operation of the air
conditioning system (heating/cooling).
When in comfort mode, if the driving mode
select switch is turned forward, the “Eco”
indicator comes on.
4 Sport mode
•SPORT S mode
Controls the transmission and engine to
provide quick, powerful acceleration. This
mode is suitable for when agile driving
response is desired, such as when driving
on roads with many curves.
When not in SPORT S mode, if the driving
mode select switch is turned backward, the
“Sport S” indicator comes on.
•SPORT S+ mode
Provides earlier downshift timing than
SPORT S mode in order to maintain a high
engine speed and provides faster gear
changes. This mode also changes the
Driving mode select switch
The driving modes can be selected
to suit driving condition.
Selecting the driving mode

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4-5. Using the driving support systems
Press the switch again to turn the sys-
tems back on.*: On vehicles with PCS (Pre-Collision Sys-
tem), PCS will also be disabled (only Pre-
Collision warning is available). The PCS
warning light will come on and a message
will be displayed on the multi-information
display. ( P.217)
■When the message is displayed on the multi-information display showing that
TRC has been disabled even if the
switch has not been pressed
TRC cannot be operated. Contact any
authorized Lexus retailer or Lexus autho- rized repairer, or any reliable repairer.
■Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assist control will operate:
●The shift position is in a position other than P or N (when starting off for-
ward/backward on an upward incline).
●The vehicle is stopped.
●The accelerator pedal is not depressed.
●The parking brake is not engaged.
■Automatic system cancelation of hill- start assist control
The hill-start assist control will turn off in any of the following situations:
●The shift position is shifted to P or N.
●The accelerator pedal is depressed.
●The parking brake is engaged.
●2 seconds at maximum elapsed after the brake pedal is released
■VGRS is disabled when
VGRS may stop operating in the following situations.
In this event, the steering wheel may move from its straight forward position, but it will
return when the system restarts.
●When the steering wheel is operated for
an extended period of time while the vehicle is stopped or is moving very slowly (on vehicles with LDH, DRS is dis-
abled together with VGRS)
●When the steering wheel has been held
fully to the left or right
The center position of the steering wheel
may change when VGRS is disabled. How- ever, the position will return to normal after VGRS is reactivated.
■When the 12-volt battery is discon-
nected (vehicles with VGRS)
The steering wheel may move from its
straight forward position, but this will be corrected automatically when driving.
■Sounds and vibrations caused by the ABS, brake assist, TRC, VSC, hill-start
assist control and VGRS systems
●A sound may be heard from the engine
compartment when the brake pedal is depressed repeatedly, when the engine is started or just after the
vehicle begins to move. This sound does not indicate that a malfunction has occurred in any of these systems.
●Any of the following conditions may
occur when the above systems are oper- ating. None of these indicates that a mal-function has occurred.
• Vibrations may be felt through the vehicle body and steering.• A motor sound may be heard after the
vehicle comes to a stop.
■ECB operating sound
ECB operating sound may be heard in the
following cases, but it does not indicate that a malfunction has occurred.
●Operating sound heard from the engine compartment when the brake pedal is operated.
●Motor sound of the brake system heard from the front part of the vehicle when
the driver’s door is opened.
●Operating sound heard from the engine
compartment when one or two minutes passed after the stop of the engine .

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4-5. Using the driving support systems
WARNING
■Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always main-
tain a safe distance from the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or snow-
covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRC/VSC may not operate effec-tively when
Directional control and power may not be achievable while driving on slippery
road surfaces, even if the TRC/VSC sys- tem is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■Hill- start assist control does not operate effectively when
●Do not overly rely on hill-start assist control. Hill-start assist control may
not operate effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist control is not intended to hold
the vehicle stationary for an extended period of time. Do not attempt to use hill-start assist control to hold the vehi-
cle on an incline, as doing so may lead to an accident.
■When the TRC/VSC/ABS is acti-vated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
■When the TRC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As
these are the systems to help ensure vehicle stability and dr iving force, do not turn the TRC/VSC systems off unless
necessary.
■Secondary Collision Brake
Do not overly rely on the Secondary Col-
lision Brake. This system is designed to help reduce the possibility of further damage due to a secondary collision,
however, that effect changes according to various conditions. Overly relying on the system may result in death or serious
injury.
■Replacing tires
Make sure that all tires are of the speci-
fied size, brand, tread pattern and total load capacity. In addition, make sure that the tires are inflated to the recom-
mended tire inflation pressure level.
The ABS, TRC and VSC systems will not
function correctly if different tires are installed on the vehicle.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspension will affect the driving assist systems, and may cause a
system to malfunction.