Lexus LX600 (2022 year). Manual in english — page 14
235
4-5. Using the driving support systems
4
D
riv
ing
The illumination condition of the indicator
informs the driver of the system operation
status.
Illuminated in white: LTA system is operat-
ing.
Illuminated in green: Steering wheel assis-
tance 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
Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.
Indicates that steering wheel assistance of
the steering assist function or lane center-
ing function is operating.
Both outer sides of the lane are displayed:
Indicates that steering wheel assist of the
lane centering function is operating.
One outer side of the lane is displayed:
Indicates that steering wheel assist of the
steering assist function is operating.
Both outer sides of the lane are flashing:
Alerts the driver that their input is neces-
sary to stay in the center of the lane (lane
centering function).
Lane departure alert function dis-
play
Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.
Inside of displayed lines is white
Indicates that the system is recognizing
white (yellow) lines or a course
*
. When the
vehicle departs from its lane, the white line
displayed on the side the vehicle departs
from flashes orange.
Inside of displayed lines is black
Indicates that the system is not able to rec-
ognize white (yellow) lines or a course
*
or
is temporarily canceled.
Follow-up cruising display
Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.
Indicates that steering assist of the lane
centering function is operating by monitor-
ing the position of a preceding vehicle.
When the follow-up cruising display is dis-
played, if the preceding vehicle moves,
your vehicle may move in the same way.
Always pay careful attention to your sur-
roundings and operate the steering wheel
as necessary to correct the path of the
B
C
D
236
4-5. Using the driving support systems
vehicle and ensure safety.
*
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
■
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 approximately 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 another vehicle is in the lane
on the side where the turn signal was oper-
ated)
• Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected.
(
*1
: The function operates even if the vehicle
speed is less than approximately 32 mph
(50 km/h) when the lane centering
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 met in addition to the
operation conditions for the lane departure
alert function.
• Vehicle is not accelerated or decelerated
by a fixed amount or more.
• Steering wheel is not operated with a
steering force level suitable for changing
lanes.
• Multi Terrain ABS, VSC, Active TRAC
and PCS are not operating.
• Active 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.
• LTA is turned on.
• Setting for “Lane Center” in
of the
multi-information display is set to “ON”.
(
• 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 vehicle-
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.
(
• Vehicle does not accelerate or deceler-
ate by a fixed amount or more.
• Steering wheel is not operated with a
steering force level suitable for changing
lanes.
• Multi Terrain ABS, VSC, Active TRAC
and PCS are not operating.
• Active TRAC or VSC is not turned off.
• Hands off steering wheel warning is not
displayed. (
• The vehicle is being driven in the center
of a lane.
• Steering assist function is not operating.
■
Temporary cancelation of functions
●
When operation conditions are no lon-
ger met, a function may be temporarily
canceled. However, when the operation
conditions are met again, operation of
237
4-5. Using the driving support systems
4
D
riv
ing
the function is automatically restored.
(
●
If the operation conditions (
P.236) 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 vibrating
the steering wheel instead of sounding
the buzzer.
■
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
overridden by the driver’s steering wheel
operation.
●
Do not attempt to test the operation of
the steering assist function.
■
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.
*
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
■
Hands off steering wheel warning
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.
●
When the system determines the driver is
not holding the steering wheel while the
lane centering function is operating
If the driver continues to keep their hands
off of the steering wheel, the buzzer sounds,
the driver is warned and the function is tem-
porarily canceled. This warning also oper-
ates 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 deviate from the lane while
driving around a curve while the lane
centering function is operating.
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 steering wheel assist
of the steering assist function is operat-
ing.
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.
238
4-5. Using the driving support systems
The buzzer also sounds even if the alert
type is set to
.
■
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.
■
Warning message
If the following warning message is dis-
played on the multi-information display and
the LTA indicator illuminates in orange, fol-
low the appropriate troubleshooting proce-
dure. Also, if a different warning message is
displayed, follow the instructions displayed
on the screen.
●
“LTA Malfunction Visit Your Dealer”
The system may not be operating properly.
Have the vehicle inspected by your Lexus
dealer.
●
“LTA Unavailable”
The system is temporarily canceled due to a
malfunction in a sensor other than the front
camera. Turn the LTA system off, wait for a
little while, and then turn the LTA system
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. (Cus-
tomizable features:
239
4-5. Using the driving support systems
4
D
riv
ing
*
: If equipped
When the front camera recognizes a
sign and/or information of a sign is
available from the 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. (
When a tab other than the driving
support system information display
is selected, the following types of
road signs will be displayed.
(
• Speed limit sign
• Do Not Enter sign (when notification is
necessary)
If signs other than speed limit signs are rec-
ognized, they will be displayed in an over-
lapping stack under the current speed limit
sign.
RSA (Road Sign Assist)
*
The RSA system recognizes spe-
cific road signs using the front cam-
era and/or navigation system
(when speed limit information is
available) to provide information to
the driver via the display.
If the system judges that the vehicle
is being driven over the speed limit,
performing prohibited actions, etc.
according to the recognized road
signs, it notifies the driver through a
visual notification and notification
buzzer.
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
240
4-5. Using the driving support systems
The following types of road signs,
including electronic signs and blinking
signs, are recognized.
A non-official or a recently introduced traf-
fic sign may not be recognized.
: Speed limit
: Do Not Enter
: Stop
: Yield
In the following situations, the RSA sys-
tem will notify the driver.
When the vehicle speed exceeds
the speed notification 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, a notifica-
tion function may not operate properly.
■
Setting procedure
■
Automatic turn-off of RSA sign display
In the following situations, a displayed
speed limit sign and/or do not enter sign
will stop being displayed automatically:
●
No sign has been recognized for a cer-
tain distance.
●
The road changes due to a left or right
turn, etc.
In the following situations, stop and yield
signs will stop being displayed automati-
cally:
●
The system determines that your vehicle
has passed the sign.
●
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 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.
●
The contrast of electronic sign is low.
●
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.
●
If a sign not appropriate for the currently
traveled lane, but the sign exists directly
after a freeway branches, or in an adja-
cent lane just before merging.
●
Stickers are attached to the rear of the
preceding vehicle.
●
A sign resembling a system compatible
Supported types of road signs
Notification function
241
4-5. Using the driving support systems
4
D
riv
ing
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.
●
The navigation system map data is out-
dated.
●
The navigation system is not operating.
●
The speed information displayed on the
meter and on the navigation system may
be different due to the navigation system
using map data.
■
Speed limit sign display
If the engine switch was 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 ON.
■
If “RSA Malfunction Visit Your Dealer”
is shown
The system may be malfunctioning. Have
the vehicle inspected by your Lexus dealer.
■
Customization
Some functions can be customized. (Cus-
tomizable features:
■
Meter display
Multi-information display
Set speed
Indicators
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
242
4-5. Using the driving support systems
■
Operation switches
Cruise control main switch
“+RES” switch
Cancel switch
“-SET” switch
Vehicle-to-vehicle distance 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 carefully.
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:
A
B
C
D
E
●
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.
●
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 solely on this system or
assuming the system ensures safety
while driving can lead to an accident,
resulting in death or serious injury.
●
Switch the dynamic radar cruise con-
trol with full-speed range setting to 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 following
distance between the driver’s own vehi-
cle and a designated vehicle traveling
ahead. It is not a mechanism that allows
careless or inattentive driving, 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.
243
4-5. Using the driving support systems
4
D
riv
ing
WARNING
●
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 vigi-
lant and to determine whether or not
there is a possibility of danger in any
given situation.
●
Assisting the driver to operate the
vehicle
The dynamic radar cruise control with
full-speed range does not include func-
tions which will prevent or avoid colli-
sions with vehicles ahead of your vehicle.
Therefore, if there is ever any possibility
of danger, the driver must take immedi-
ate and direct control of the vehicle and
act appropriately 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 accident 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 high-
ways
●
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 or front cam-
era
●
In traffic conditions that require fre-
quent repeated acceleration and
deceleration
●
When your vehicle is towing a trailer
or during emergency towing
●
When an approach warning buzzer is
heard often
244
4-5. Using the driving support systems
This mode employs a radar to detect the presence of vehicles up to approximately
328 ft. (100 m) ahead, determines the current vehicle-to-vehicle following dis-
tance, and operates to maintain a suitable following distance from the vehicle
ahead. The desired vehicle-to-vehicle distance can also be set by operating the
vehicle-to-vehicle distance switch.
When driving on downhill slopes, the vehicle-to-vehicle distance may become shorter.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
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 (start-off operation) will resume follow-up cruising. If the start-off
operation is not performed, system control continues to keep your vehicle stopped.
When the turn signal lever is operated and your vehicle moves to an overtaking lane while
driving at 50 mph (80 km/h) or more, the vehicle will accelerate to help to overtake a
passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely based on
Driving in vehicle-to-vehicle distance control mode
A
B
245
4-5. Using the driving support systems
4
D
riv
ing
the location of the steering wheel in the vehicle (left side driver position versus right side
driver position.) If the vehicle is driven to a region where the overtaking lane is on a differ-
ent side from where the vehicle is normally driven, the vehicle may accelerate when the
turn signal lever is operated in the opposite direction to the overtaking lane (e.g., if the
driver normally operates the vehicle in a region where the overtaking lane is to the right but
then drives to a region where the overtaking lane is to the left, the vehicle may accelerate
when the right turn signal is activated).
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.
1
Press the cruise control main
switch to activate the cruise con-
trol.
Dynamic 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 con-
trol.
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 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 set speed by the
switch
To change the set speed, press the
“+RES” or “-SET” switch until the
desired set speed is displayed.
C
Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)
Adjusting the set speed
246
4-5. Using the driving support systems
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
km/h (0.6 mph)
*2
each time the switch is
pressed
Large adjustment: Increases or decreases
in 1 mph (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 (0.6 mph)
*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”
Increasing the set speed by the
accelerator pedal
1
Accelerate with accelerator pedal
operation to the desired vehicle
speed
2
Press the “-SET” switch
Pressing the switch changes the vehi-
cle-to-vehicle distance as follows:
1
Long
2
Medium
3
Short
If a vehicle is running ahead of you, the pre-
ceding vehicle mark
will also be dis-
played.
Changing the vehicle-to-vehicle
distance (vehicle-to-vehicle dis-
tance control mode)
A
247
4-5. Using the driving support systems
4
D
riv
ing
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 dis-
tance increases/decreases in accor-
dance 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.
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
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)
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)
248
4-5. Using the driving support systems
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 appropri-
ate vehicle-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
Immediately after the cruise control
speed was set
When depressing the accelerator
pedal
While driving in vehicle-to-vehicle dis-
tance control mode, this function will
reduce the vehicle speed, if it is deter-
mined to be necessary.
■
Function operation
When the steering wheel begins to be
turned, the vehicle speed will begin
being reduced. When the steering
wheel is returned to the center posi-
tion, the vehicle speed reduction will
end.
Depending on the situation, the vehicle
speed will then return to the vehicle-to-
vehicle distance control mode set
speed.
In situations where vehicle-to-vehicle
distance control needs to operate,
such as when a preceding vehicle cuts
in front of your vehicle, the curve
speed reduction function will be can-
celed.
■
Operation display
Displayed when the vehicle speed is
being reduced.
When the vehicle speed reduction ends,
the display will disappear.
■
Changing the settings of the curve
speed reduction function
The curve speed reduction function
can be enabled/disabled and the vehi-
cle speed reduction strength can be
adjusted on
(
information display.
The setting will change each time the
meter control switch is pressed.
Curve speed reduction function
249
4-5. Using the driving support systems
4
D
riv
ing
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
distance control mode does not func-
tion 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
dynamic radar cruise control indicator will
come on. Afterwards, it switches to the
cruise control 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:
Canceling and resuming the speed setting:
■
Dynamic radar cruise control with full-
speed range can be set when
●
The shift lever is in D.
●
The desired set speed can be set when
the vehicle speed is approximately 20
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 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
cruising will be resumed.
■
Automatic cancelation of vehicle-to-
vehicle distance control mode
Vehicle-to-vehicle distance control mode is
automatically canceled in the following situ-
ations.
●
VSC is activated.
●
Active TRAC is activated for a period of
Selecting constant speed con-
trol mode
250
4-5. Using the driving support systems
time.
●
When the VSC or Active TRAC system
is turned off.
●
The sensor cannot detect correctly
because it is covered in some way.
●
When the brake control or output
restriction control of a driving support
system operates.
(For example: Pre-Collision System,
Drive-Start Control)
●
The center differential lock/unlock is not
completed within 5 seconds while the
cruise control system is on.
●
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.
●
Active TRAC is activated for a period of
time.
●
When the VSC or Active TRAC system
is turned off.
●
When the brake control or output
restriction control of a driving support
system operates.
(For example: Pre-Collision System,
Drive-Start Control)
●
The center differential lock/unlock is not
completed within 5 seconds while the
cruise control system is on.
●
The parking brake is operated.
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.
■
Situations in which the curve speed
reduction function may not operate
In situations such as the following, the curve
speed reduction function may not operate:
●
When the vehicle is being driven around
a gentle curve
●
When the accelerator pedal is being
depressed
●
When the vehicle is being driven around
an extremely short curve
■
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 message is shown on the
multi-information display, read the message
and follow the instructions. (
■
When the sensor may not be correctly
detecting the vehicle ahead
In the case of the following 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.247) may not be activated.
●
Vehicles that cut in suddenly
●
Vehicles traveling at low speeds
●
Vehicles that are not moving in the same
lane
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст