Lexus GX460 (2022 year). Manual in english — page 15
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4-5. Using the driving support systems
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Conditions in which functions may not operate properly
In the following situations, the camera sensor may not detect white (yellow) lines and var-
ious 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 intersection, 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 carrying 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 during driv-
ing (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 has just changed lanes or crossed an intersection.
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Warning message
If the following warning message is displayed on the multi-information display and the
LDA indicator illuminates in orange, follow the appropriate troubleshooting procedure.
If a different warning message is displayed, follow the instructions displayed on the
screen.
Warning message
Details/Actions
“Lane Departure
Alert
Malfunction
Visit Your Dealer”
The system may not be operating properly.
Have the vehicle inspected at your Lexus
dealer.
“Front Camera
Unavailable
See Owner’s Manual”
Dirt, rain, condensation, ice, snow, etc. are
present on the windshield in front of the cam-
era sensor.
Turn the LDA system off, remove any dirt,
rain, condensation, ice, snow, etc. from the
windshield, and then turn the LDA system
back on.
“Front Camera
Unavailable”
The operation conditions of the camera sen-
sor (temperature, etc.) are not met.
When the operation conditions of the cam-
era sensor (temperature, etc.) are met, the
LDA system will become available. Turn
the LDA system off, wait for a little while,
and then turn the LDA system back on.
“Lane Departure Alert
Unavailable”
The LDA system is temporarily canceled due
to a malfunction in a sensor other than the
camera sensor.
Turn the LDA system off and follow the
appropriate troubleshooting procedures
for the warning message. Afterward, drive
the vehicle for a short time, and then turn
the LDA system back on.
“Lane Departure
Alert
Unavailable
Below Approx
32MPH”
The LDA system cannot be used as the vehicle
speed is less than approximately 32 mph
(50 km/h).
Drive the vehicle at approximately 32 mph
(50 km/h) or more.
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4-5. Using the driving support systems
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Customization
The following settings can be changed.
For how to change settings, refer to P. 600.
Function
Setting details
Lane departure alert function
Adjust alert sensitivity
Adjust alert type
Vehicle sway warning function
Turn function on and off
Adjust alert sensitivity
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Dynamic radar cruise control
In vehicle-to-vehicle distance control mode, the vehicle automatically acceler-
ates and decelerates 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 control on freeways and highways.
●
Vehicle-to-vehicle distance control mode (
●
Constant speed control mode (
Indicators
Set speed
Vehicle-to-vehicle distance switch
Display
Cruise control switch
Summary of functions
1
2
3
4
5
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4-5. Using the driving support systems
WARNING
■
Before using dynamic radar cruise control
●
Driving safely is the sole responsibility of the driver. Do not rely solely on the system,
and drive safely by always paying careful attention to your surroundings.
●
The dynamic radar cruise control provides driving assistance to reduce the driver’s
burden. 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:
●
Set the speed appropriately depending on the speed limit, traffic flow, road condi-
tions, weather conditions, etc. The driver is responsible for checking the set speed.
●
Even when the system is functioning normally, the condition of the preceding 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 assuming the system ensures safety while
driving can lead to an accident, resulting in death or serious injury.
●
Switch the dynamic radar cruise control off using the “ON/OFF” button 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 following distance
The dynamic radar cruise control is only intended to help the driver in determining
the following distance between the driver’s own vehicle 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.
●
Assisting the driver to judge proper following distance
The dynamic radar cruise control 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.
●
Assisting the driver to operate the vehicle
The dynamic radar cruise control 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 control of the vehicle and act appropriately in order to
ensure the safety of all involved.
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WARNING
■
Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an accident result-
ing 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 covered 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 sensors from
detecting correctly (fog, snow, sandstorm, heavy rain, etc.)
●
When there is rain, snow, etc. on the front surface of the radar sensor or camera sen-
sor
●
In traffic conditions that require frequent repeated acceleration and deceleration
●
When your vehicle is towing a trailer (with towing hitch) or during emergency towing
●
When an approach warning buzzer is heard often
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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
approximately 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 dis-
tance 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 deceler-
ates 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.
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 con-
stant speed cruising.
Driving in vehicle-to-vehicle distance control mode
1
2
3
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Press the “ON/OFF” button to acti-
vate the cruise control.
Radar cruise control indicator will come
on and a message will be displayed on
the multi-information display.
Press the button again to deactivate the
cruise control.
If the “ON/OFF” button is pressed and
held for 1.5 seconds or more, the system
turns on in constant speed control
mode. (
Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 30 mph [50 km/h])
and push the lever down to set the
speed.
Cruise control “SET” indicator will come
on.
The vehicle speed at the moment the
lever is released becomes the set speed.
Setting the vehicle speed (vehicle-to-vehicle distance control mode)
1
2
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4-5. Using the driving support systems
To change the set speed, operate the lever until the desired set speed is dis-
played.
Increases the speed
Decreases the speed
Fine adjustment: Momentarily move
the lever in the desired direction.
Large adjustment: Hold the lever up or
down to change the speed, and release
when the desired speed is reached.
In the vehicle-to-vehicle distance control mode, the set speed will be increased
or decreased as follows:
For the U.S.A., Hawaii and Puerto Rico
Fine adjustment: By 1 mph (1.6 km/h)
*
1
or 1 km/h (0.6 mph)
*
2
each time the lever is
operated
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 lever is held
Except for the U.S.A., Hawaii and Puerto Rico
Fine adjustment: By 1 mph (1.6 km/h)
*
1
or 1 km/h (0.6 mph)
*
2
each time the lever is
operated
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 lever is held
In the constant speed control mode (
P. 263), the set speed will be increased
or decreased as follows:
Fine adjustment: By 1 mph (1.6 km/h)
*
1
or 1 km/h (0.6 mph)
*
2
each time the lever is
operated
Large adjustment: The speed will continue to change while the lever is held.
*
1
: When the set speed is shown in “MPH”
*
2
: When the set speed is shown in “km/h”
Adjusting the set speed
1
2
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Pressing the switch changes the vehi-
cle-to-vehicle distance as follows:
Long
Medium
Short
The vehicle-to-vehicle distance is set
automatically to long mode when the
engine switch is turned to IGNITION
ON mode.
If a vehicle is running ahead of you, the preceding vehicle mark will also be displayed.
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.
Changing the vehicle-to-vehicle distance (vehicle-to-vehicle distance
control mode)
Preceding
vehicle mark
1
2
3
Vehicle-to-vehicle distance settings (vehicle-to-vehicle distance con-
trol 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)
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4-5. Using the driving support systems
Pulling the lever toward you cancels
the speed control.
The speed control is also canceled when
the brake pedal is depressed.
Pushing the lever up resumes the
cruise control and returns vehicle
speed to the set speed.
However, 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 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 traveling at an extremely slow speed
●
Immediately after the cruise control speed was set
●
When depressing the accelerator pedal
Canceling and resuming the speed control
1
2
Approach warning (vehicle-to-vehicle distance control mode)
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When constant speed control mode is selected, your vehicle will maintain a set
speed without controlling the vehicle-to-vehicle distance. Select this mode only
when vehicle-to-vehicle distance control mode does not function correctly due
to a dirty radar sensor, etc.
With the cruise control off, press and
hold the “ON/OFF” button for 1.5
seconds or more.
Immediately after the “ON/OFF” but-
ton is pressed, the 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 lever with the cruise control off.
Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 25 mph [40 km/h])
and push the lever down to set the
speed.
Cruise control “SET” indicator will come
on.
The vehicle speed at the moment the
lever is released becomes the set speed.
Adjusting the speed setting:
Canceling and resuming the speed setting:
Selecting constant speed control mode
1
2
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■
Dynamic radar cruise control can be set when
●
The shift lever is in D.
●
Vehicle speed is at or above approximately 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 vehicle-to-vehicle distance control mode, the vehi-
cle speed may decrease below the set speed in order to maintain the distance to the pre-
ceding vehicle.
■
Automatic cancelation of vehicle-to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically canceled in the following situ-
ations:
●
Actual vehicle speed falls at or below approximately 25 mph (40 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 second start mode is set.
●
The sensor cannot detect correctly because it is covered in some way.
●
Pre-collision braking is activated.
●
The switching operation continues for 5 seconds or more after the center differential
lock switch has been operated.
If vehicle-to-vehicle distance control mode is automatically canceled for any other rea-
son, there may be a malfunction in the system. Contact your Lexus dealer.
■
Automatic cancelation of constant speed control mode
Constant speed control mode is automatically canceled in the following situations:
●
Actual vehicle speed is more than approximately 10 mph (16 km/h) below the set vehi-
cle speed.
●
Actual vehicle speed falls below approximately 25 mph (40 km/h).
●
VSC is activated.
●
Active TRAC is activated for a period of time.
●
When the VSC or Active TRAC system is turned off.
●
Pre-collision braking is activated.
●
The switching operation continues for 5 seconds or more after the center differential
lock switch has been operated.
If constant speed control mode is automatically canceled for any other reason, there may
be a malfunction in the system. Contact your Lexus dealer.
■
Brake system operation sound
If the brakes are applied automatically while the vehicle is in vehicle-to-vehicle distance
control mode, a brake system operation sound may be heard. This does not indicate a
malfunction.
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Warning messages and buzzers for dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. 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 insufficient 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. 262) may not be activated.
●
Vehicles that cut in suddenly
●
Vehicles traveling at low speeds
●
Vehicles that are not moving in the same lane
●
Vehicles with small rear ends (trailers with no load on board, etc.)
●
Motorcycles traveling in the same lane
●
When water or snow thrown up by the surrounding vehicles hinders the detecting of
the sensor
●
When your vehicle is pointing upwards
(caused by a heavy load in the luggage com-
partment, etc.)
●
Preceding vehicle has an extremely high
ground clearance
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Conditions under which the vehicle-to-vehicle distance control mode may not function
correctly
In the case of the following conditions, operate the brake pedal (or accelerator pedal,
depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system may not
operate properly.
●
When the vehicle ahead of you decelerates suddenly
●
When driving on a road surrounded by a structure, such as in a tunnel or on a bridge
●
While the vehicle speed is decreasing to the set speed after the vehicle accelerates by
depressing the accelerator pedal
●
When the road curves or when the lanes are
narrow
●
When steering wheel operation or your posi-
tion in the lane is unstable
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Intuitive parking assist
Front center sensors
Front corner sensors
Rear corner sensors
Rear center sensors
Press
or
of the meter control switches and select
on the multi-
information display.
Press
or
of the meter control switches and select
, and then
press .
Press
or
of the meter control switches and select
, and then
press .
Each pressing of the switch turns the intuitive parking assist on and off.
When ON is selected, Intuitive parking assist indicator will come on.
The distance from your vehicle to nearby obstacles when parallel parking or
maneuvering into a garage is measured by the sensors and communicated via
the multi-information display, the navigation system screen, and a buzzer.
Always check the surrounding area when using this system.
Types of sensors
1
2
3
4
Turning the intuitive parking assist on/off
1
2
3
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