Lexus LC500h (2021 year). Manual in english — page 12
206
4-5. Using the driving support systems
• The vehicle is wobbling.
• The vehicle is being driven at extremely
high speeds.
• When driving on a hill
• If the radar sensor or front camera is mis-
aligned
●
In some situations such as the following,
sufficient braking force may not be
obtained, preventing the system from
performing properly:
• If the braking functions cannot operate to
their full extent, such as when the brake
parts are extremely cold, extremely hot,
or wet
• If the vehicle is not properly maintained
(brakes or tires are excessively worn,
improper tire inflation pressure, etc.)
• When the vehicle is being driven on a
gravel road or other slippery surface
●
Some pedestrians such as the following
may not be detected by the radar sensor
and front camera, preventing the system
from operating properly:
• Pedestrians shorter than approximately
3.2 ft. (1 m) or taller than approximately
6.5 ft. (2 m)
• Pedestrians wearing oversized clothing
(a rain coat, long skirt, etc.), making their
silhouette obscure
• Pedestrians who are carrying large bag-
gage, holding an umbrella, etc., hiding
part of their body
• Pedestrians who are bending forward or
squatting
• Pedestrians who are pushing a stroller,
wheelchair, bicycle or other vehicle
• Groups of pedestrians which are close
together
• Pedestrians who are wearing white and
look extremely bright
• Pedestrians in the dark, such as at night
or while in a tunnel
• Pedestrians whose clothing appears to
be nearly the same color or brightness as
their surroundings
• Pedestrians near walls, fences, guardrails,
or large objects
• Pedestrians who are on a metal object
(manhole cover, steel plate, etc.) on the
road
• Pedestrians who are walking fast
• Pedestrians who are changing speed
abruptly
• Pedestrians running out from behind a
vehicle or a large object
• Pedestrians who are extremely close to
the side of the vehicle (outside rear view
mirror, etc.)
■
If VSC is disabled
●
If VSC is disabled (
P.244), the pre-col-
lision brake assist and pre-collision brak-
ing functions are also disabled.
●
The PCS warning light will turn on and
“VSC Turned Off Pre-Collision Brake
System Unavailable” will be displayed on
the multi-information display.
207
4-5. Using the driving support systems
4
Driving
■
Lane departure alert function
When the system determines that the
vehicle might depart from its lane, a
warning is displayed on the multi-infor-
mation display, and either the warning
buzzer sounds to alert the driver.
When the warning buzzer sounds, check
the surrounding road situation and care-
fully operate the steering wheel to move
the vehicle back to the center of the lane.
■
Steering assist function
When the system determines that the
vehicle might depart from its lane, the
system provides assistance as neces-
sary by operating the steering wheel in
small amounts for a short period of
time to keep the vehicle in its lane.
If the system detects that the steering
wheel has not been operated for a fixed
amount of time or the steering wheel is not
being firmly gripped, a warning is displayed
on the multi-information display and the
warning buzzer sounds.
LKA (Lane-Keeping Assist)
When driving on highways and
freeways with white or yellow lines,
this function alerts the driver when
the vehicle might depart from its
lane and provides assistance by
operating the steering wheel to
keep the vehicle in its lane. Further-
more, the system also provides
steering assistance when dynamic
radar cruise control with full-speed
range is operating to keep the vehi-
cle in its lane.
The LKA system recognizes visible
white or yellow lines with the front
camera on the upper portion of the
front windshield.
Functions included in LKA sys-
tem
208
4-5. Using the driving support systems
■
Vehicle sway warning function
When the vehicle is swaying or
appears as if it may depart from its lane
multiple times, the warning buzzer
sounds and a message is displayed on
the multi-information display to alert
the driver.
■
Lane centering function
This function is linked with radar cruise
control and provides the required
assistance by operating the steering
wheel to keep the vehicle in its current
lane.
When radar cruise control is not operating,
the lane centering function does not oper-
ate.
If the system detects that the steering
wheel has not been operated for a fixed
amount of time or the steering wheel is not
being firmly gripped, a warning is displayed
on the multi-information display and the
warning buzzer sounds.
209
4-5. Using the driving support systems
4
Driving
Press the LKA switch to turn the LKA
system on.
The LKA indicator illuminates and a mes-
sage is displayed on the multi-information
display.
Press the LKA switch again to turn the
LKA system off.
When the LKA system is turned on or off,
operation of the LKA system continues in
the same condition the next time the
engine <hybrid system> is started.
WARNING
■
Before using LKA system
Do not rely solely upon the LKA system.
The LKA system does not automatically
drive the vehicle or reduce the amount of
attention that must be paid to the area in
front of the vehicle. The driver must
always assume full responsibility for driv-
ing safely by paying careful attention to
the surrounding conditions and operat-
ing the steering wheel to correct the path
of the vehicle. Also, the driver must take
adequate breaks when fatigued, such as
from driving for a long period of time.
Failure to perform appropriate driving
operations and pay careful attention may
lead to an accident, resulting in death or
serious injury.
■
To avoid operating LKA system by
mistake
When not using the LKA system, use the
LKA switch to turn the system off.
■
Situations unsuitable for LKA system
Do not use the LKA system in the follow-
ing situations.
The system may not operate properly
and lead to an accident, resulting in
death or serious injury.
●
A spare tire, tire chains, etc. are
equipped.
●
When the tires have been excessively
worn, or when the tire inflation pres-
sure is low.
●
Tires which differ by structure, manu-
facturer, brand or tread pattern are
used.
●
Objects or patterns that could be mis-
taken for white (yellow) lines are pres-
ent on the side of the road (guardrails,
curbs, reflective poles, etc.).
●
Vehicle is driven on a snow-covered
road.
●
White (yellow) lines are difficult to see
due to rain, snow, fog, dust, etc.
●
Asphalt repair marks, white (yellow)
line marks, etc. are present due to road
repair.
●
Vehicle is driven in a temporary lane or
restricted lane due to construction
work.
●
Vehicle is driven on a road surface
which is slippery due to rainy weather,
fallen snow, freezing, etc.
●
Vehicle is driven in traffic lanes other
than on highways and freeways.
●
Vehicle is driven in a construction
zone.
■
Preventing LKA system malfunctions
and operations performed by mistake
●
Do not modify the headlights or place
stickers, etc. on the surface of the
lights.
●
Do not modify the suspension etc. If
the suspension etc. needs to be
replaced, contact your Lexus dealer.
●
Do not install or place anything on the
hood or grille. Also, do not install a
grille guard (bull bars, kangaroo bar,
etc.).
●
If your windshield needs repairs, con-
tact your Lexus dealer.
Turning LKA system on
210
4-5. Using the driving support systems
LKA indicator
The illumination condition of the indicator
informs the driver of the system operation
status.
Illuminated in white:
LKA system is operating.
Illuminated in green:
Steering wheel assistance of the steering
assist function or lane centering function is
operating.
Flashing in orange:
Lane departure alert function is operating.
Operation display of steering
wheel operation support
Indicates that steering wheel assistance of
the steering assist function or lane center-
ing function is operating.
Lane departure alert function dis-
play
Displayed when the multi-information dis-
play is switched to the driving assist system
information screen.
Inside of displayed white lines is
white
Indicates that the system is recognizing
white (yellow) lines. When the vehicle
departs from its lane, the white line dis-
played on the side the vehicle departs from
flashes orange.
Inside of displayed white lines is
black
Indicates that the system is not able to rec-
ognize white (yellow) lines or is temporar-
ily canceled.
Indications on multi-information
display
A
B
C
211
4-5. Using the driving support systems
4
Driving
■
Operation conditions of each function
●
Lane departure alert function
This function operates when all of the fol-
lowing conditions are met.
• LKA is turned on.
• Vehicle speed is approximately 32 mph
(50 km/h) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane is approximately 9.8
ft. (3 m) or more.
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or
around a gentle curve with a radius of
more than approximately 492 ft. (150 m).
• No system malfunctions are detected.
(
●
Steering assist function
This function operates when all of the fol-
lowing conditions are met in addition to the
operation conditions for the lane departure
alert function.
• Setting for “Steering Assist” in
of the
multi-information display is set to “On”.
(
• Vehicle is not accelerated or decelerated
by a certain amount or more.
• Steering wheel is not operated with a
steering force level suitable for changing
lanes.
• ABS, VSC, TRAC and PCS are not oper-
ating.
• TRAC or VSC is not turned off.
●
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”.
(
• 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.
(
●
Lane centering function
This function operates when all of the fol-
lowing conditions are met.
• LKA is turned on.
• Setting for “Steering Assist” and “Lane
Center” in
of the multi-information
display are set to “On”. (
• System recognizes white (yellow) lines.
• Dynamic radar cruise control with full-
speed range is operating.
• Width of traffic lane is approximately 8.2
to 13.5 ft. (2.5 to 4.1 m).
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or
around a gentle curve with a radius of
more than approximately 656 ft. (200
m).
• No system malfunctions are detected.
(
• Vehicle does not accelerate or deceler-
ate by a certain amount or more.
• Steering wheel is not operated with a
steering force level suitable for changing
lanes.
• ABS, VSC, TRAC and PCS are not oper-
ating.
• TRAC or VSC is not turned off.
• Steering assist function is not operating.
■
Temporary cancellation of functions
When the operation conditions are no lon-
ger met, a function may be temporarily can-
celed. However, when the operation
conditions are met again, operation of the
function is automatically restored. (
■
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 oper-
ating or the function may not operate at all.
■
Lane departure alert function
The warning buzzer may be difficult to hear
due to external noise, audio playback, etc.
■
Hands off steering wheel warning
When the system determines that the driver
has removed their hands from the steering
wheel while the steering assist function or
lane centering function is operating, a warn-
ing message urging the driver to hold the
steering wheel and the symbol shown in the
illustration are displayed on the multi-infor-
mation display.
212
4-5. Using the driving support systems
If the driver continues to keep their hands
off of the steering wheel, a buzzer sounds
and a warning message and the symbol
shown in the illustration are displayed on
the multi-information display. This warning
also operates in the same way when the
driver continuously operates the steering
wheel only a small amount. Always keep
your hands on the steering wheel when
using this system, regardless of warnings.
Depending on the vehicle and road condi-
tions, the warning may not operate.
■
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 shown in the illustration
are simultaneously displayed on the multi-
information display.
Depending on the vehicle and road condi-
tions, the warning may not operate.
■
White (yellow) lines are only on one side
of road
The LKA system will not operate for the
side on which white (yellow) lines could not
be recognized.
■
Conditions in which functions may not
operate properly
In the following situations, the front camera
may not detect white (yellow) lines and vari-
ous functions may not operate normally.
●
There are shadows on the road that run
parallel with, or cover, the white (yellow)
lines.
●
The vehicle is driven in an area without
white (yellow) lines, such as in front of a
tollgate or checkpoint, or at an intersec-
tion, etc.
●
The white (yellow) lines are cracked,
“Botts’ dots”, “Raised pavement marker”
or stones are present.
●
The white (yellow) lines cannot be seen
or are difficult to see due to sand, etc.
●
The vehicle is driven on a road surface
that is wet due to rain, puddles, etc.
●
The traffic lines are yellow (which may be
more difficult to recognize than lines that
are white).
●
The white (yellow) lines cross over a curb,
etc.
●
The vehicle is driven on a bright surface,
such as concrete.
●
The vehicle is driven on a surface that is
bright due to reflected light, etc.
●
The vehicle is driven in an area where the
brightness changes suddenly, such as at
the entrances and exits of tunnels, etc.
●
Light from the headlights of an oncoming
vehicle, the sun, etc. enters the camera.
●
The vehicle is driven where the road
diverges, merges, etc.
●
The vehicle is driven on a slope.
●
The vehicle is driven on a road which tilts
left or right, or a winding road.
●
The vehicle is driven on an unpaved or
rough road.
●
The vehicle is driven around a sharp
curve.
●
The traffic lane is excessively narrow or
wide.
●
The vehicle is extremely tilted due to car-
rying heavy luggage or having improper
tire pressure.
●
The distance to the preceding vehicle is
extremely short.
●
The vehicle is moving up and down a
large amount due to road conditions
213
4-5. Using the driving support systems
4
Driving
during driving (poor roads or road
seams).
●
The headlight lenses are dirty and emit a
faint amount of light at night, or the beam
axis has deviated.
●
The vehicle is struck by a crosswind.
●
The vehicle has just changed lanes or
crossed an intersection.
●
Snow tires, etc. are equipped.
■
Warning message
If the following warning message is dis-
played on the multi-information display and
the LKA indicator illuminates in orange, fol-
low the appropriate troubleshooting proce-
dure.
Warning message
Details/Actions
“Lane Keeping
Assist Malfunction
Visit Your Dealer”
The system may not
be operating prop-
erly.
Have the vehicle
inspected at
your Lexus
dealer.
“Front Camera
Unavailable
Remove Debris On
Windshield”
Dirt, rain, conden-
sation, ice, snow,
etc., are present on
the windshield in
front of the front
camera.
Turn the LKA
system off,
remove any dirt,
rain, condensa-
tion, ice, snow,
etc., from the
windshield, and
then turn the
LKA system
back on.
“Front Camera
Unavailable”
The operation con-
ditions of the front
camera (tempera-
ture, etc.) are not
met.
When the opera-
tion conditions
of the front cam-
era (tempera-
ture, etc.) are
met, the LKA
system will
become avail-
able. Turn the
LKA system off,
wait for a little
while, and then
turn the LKA
system back on.
“Lane Keeping
Assist Unavailable”
The LKA system is
temporarily can-
celed due to a mal-
function in a sensor
other than the front
camera.
Turn the LKA
system off and
follow the appro-
priate trouble-
shooting
procedures for
the warning
message. After-
ward, drive the
vehicle for a
short time, and
then turn the
LKA system
back on.
Warning message
Details/Actions
214
4-5. Using the driving support systems
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.405.
■
Meter display
Display
Set speed
Indicators
“Lane Keeping
Assist Unavailable
Below Approx
32MPH”
The LKA system
cannot be used as
the vehicle speed is
less than approxi-
mately 32 mph (50
km/h).
Drive the vehicle
at approxi-
mately 32 mph
(50 km/h) or
more.
“Lane Keeping
Assist Unavailable at
Current Speed”
The LKA system
cannot be used as
the vehicle speed is
too high.
Slow down.
Function
Setting details
Lane departure alert
function
Adjust alert sensitiv-
ity
Steering assist func-
tion
Turn steering wheel
assistance on and off
Vehicle sway warn-
ing function
Turn function on and
off
Adjust alert sensitiv-
ity
Lane centering
function
Turn function on and
off
Warning message
Details/Actions
Dynamic radar cruise con-
trol with full-speed range
In vehicle-to-vehicle distance con-
trol mode, the vehicle 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 (
Constant speed control mode
(
System Components
A
B
C
215
4-5. Using the driving support systems
4
Driving
■
Operation switches
Vehicle-to-vehicle distance switch
“+RES” switch
Cruise control main switch
Cancel switch
“-SET” switch
WARNING
■
Before using dynamic radar cruise
control with full-speed range
●
Driving safely is the sole responsibility
of the driver. Do not rely solely on the
system, and drive safely by always pay-
ing careful attention to your surround-
ings.
●
The dynamic radar cruise control with
full-speed range provides driving
assistance to reduce the driver’s bur-
den. However, there are limitations to
the assistance provided.
Read the following conditions care-
fully. Do not overly rely on this system
and always drive carefully.
• When the sensor may not be correctly
detecting the vehicle ahead:
• Conditions under which the vehicle-
to-vehicle distance control mode may
not function correctly:
●
Set the speed appropriately depend-
ing on the speed limit, traffic flow, road
conditions, weather conditions, etc.
The driver is responsible for checking
the set speed.
A
B
C
D
E
●
Even when the system is functioning
normally, the condition of the preced-
ing vehicle as detected by the system
may differ from the condition
observed by the driver. Therefore, the
driver must always remain alert, assess
the danger of each situation and drive
safely. Relying on this system or assum-
ing the system ensures safety while
driving can lead to an accident, result-
ing in death or serious injury.
●
Switch the dynamic radar cruise con-
trol with full-speed range off using the
cruise control main switch when not in
use.
■
Cautions regarding the driving assist
systems
Observe the following precautions, as
there are limitations to the assistance
provided by the system.
Failure to do so may cause an accident
resulting in death or serious injury.
●
Assisting the driver to measure follow-
ing distance
The dynamic radar cruise control with
full-speed range is only intended to
help the driver in determining the fol-
lowing distance between the driver’s
own vehicle and a designated vehicle
traveling ahead. It is not a mechanism
that allows careless or inattentive driv-
ing, and it is not a system that can assist
the driver in low-visibility conditions. It
is still necessary for driver to pay close
attention to the vehicle’s surroundings.
●
Assisting the driver to judge proper
following distance
The dynamic radar cruise control with
full-speed range determines whether
the following distance between the
driver’s own vehicle and a designated
vehicle traveling ahead is within a set
range. It is not capable of making any
other type of judgement. Therefore, it
is absolutely necessary for the driver to
remain vigilant and to determine
whether or not there is a possibility of
danger in any given situation.
216
4-5. Using the driving support systems
WARNING
●
Assisting the driver to operate the
vehicle
The dynamic radar cruise control with
full-speed range has limited capability
to prevent or avoid a collision with a
vehicle traveling ahead. Therefore, if
there is ever any danger, the driver
must take immediate and direct con-
trol of the vehicle and act appropri-
ately in order to ensure the safety of all
involved.
■
Situations unsuitable for dynamic
radar cruise control with full-speed
range
Do not use dynamic radar cruise control
with full-speed range in any of the follow-
ing situations.
Doing so may result in inappropriate
speed control and could cause an acci-
dent resulting in death or serious injury.
●
Roads where there are pedestrians,
cyclists, etc.
●
In heavy traffic
●
On roads with sharp bends
●
On winding roads
●
On slippery roads, such as those cov-
ered with rain, ice or snow
●
On steep downhills, or where there
are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set
speed when driving down a steep hill.
●
At entrances to freeways and highways
●
When weather conditions are bad
enough that they may prevent the sen-
sors from detecting correctly (fog,
snow, sandstorm, heavy rain, etc.)
●
When there is rain, snow, etc. on the
front surface of the radar sensor or
front camera
●
In traffic conditions that require fre-
quent repeated acceleration and
deceleration
●
During emergency towing
●
When an approach warning buzzer is
heard often
217
4-5. Using the driving support systems
4
Driving
This mode employs a radar sensor to detect the presence of vehicles up to approx-
imately 328 ft. (100 m) 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 close 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 vehicle speed is necessary, the system applies
the brakes (the stop lights will come on at this 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 vehicle 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.
Example of acceleration
When there are no longer any preceding vehicles driving slower than the set
speed
The system accelerates until the set speed is reached. The system then returns to constant
speed cruising.
Driving in vehicle-to-vehicle distance control mode
A
B
C
218
4-5. Using the driving support systems
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 display.
Press the switch again to deactivate the
cruise control.
If the cruise control main switch is pressed
and held for 1.5 seconds or more, the sys-
tem turns on in constant speed control
mode. (
2
Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 30 mph [50 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.
If the switch is operated while the vehicle
speed is below approximately 30 mph (50
km/h) and a preceding vehicle is present,
the set speed will be adjusted to approxi-
mately 30 mph (50 km/h).
To change the set speed, operate 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-
vehicle distance control mode)
2
Decreases the speed
Fine adjustment: Press the switch.
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 the U.S. mainland and Hawaii
Fine adjustment: By 1 mph (1.6 km/h)
*1
or 1
Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)
Adjusting the set speed
219
4-5. Using the driving support systems
4
Driving
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
Except for the U.S. mainland and
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 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
(
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 <power switch> is turned to IGNI-
TION ON mode <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
distance
Long
Approximately 160
ft. (50 m)
Medium
Approximately 130
ft. (40 m)
Short
Approximately 100
ft. (30 m)
A
220
4-5. Using the driving support systems
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 control, 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.
However, when a vehicle ahead is not
detected, cruise control does not resume
when the vehicle speed is approximately
25 mph (40 km/h) or less.
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.
■
Warnings may not occur when
In the following instances, warnings
may not occur even when the vehicle-
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
Resuming follow-up cruising
when the vehicle has been
stopped by system control (vehi-
cle-to-vehicle distance control
mode)
Canceling and resuming the
speed control
Approach warning (vehicle-to-
vehicle distance control mode)
221
4-5. Using the driving support systems
4
Driving
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 sensor,
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 indicator 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 25 mph [40 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:
Canceling and resuming the speed setting:
■
Dynamic radar cruise control with full-
speed range can be set when
●
The shift position is in D.
●
LC500: Range 4 or higher of D has been
selected by using the paddle shift switch.
●
Vehicle speed is at or above approxi-
mately 30 mph (50 km/h).
However, when a preceding vehicle is
detected, the dynamic radar cruise con-
trol with full-speed range can be set even
if the vehicle speed is below approxi-
mately 30 mph (50 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 will 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
Selecting constant speed con-
trol mode
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