steering Lexus GX460 2020 / LEXUS 2020 GX460 (OM60R27U) Service Manual

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Driving
◆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 dis-
played on the multi-information dis-
play to alert the driver.
WARNING
■Before using LDA system
Do not rely solely upon the LDA system. The LDA 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 driving safely by pay-
ing careful attention to the surrounding cond itions and operating 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 operat ions and pay careful attention may lead to
an accident, resulting in death or serious injury.
■To avoid operating LDA system by mistake
When not using the LDA system, use the LDA switch to turn the system off.

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
■Operation conditions of each function
●Lane departure alert function
This function operates when all of
the following conditions are met.
• LDA is turned on.
• Vehicle speed is approximatel y 32 mph (50 km/h) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane is approx imately 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. ( P. 252)
●Vehicle sway warning function
This function operates when all of the following conditions are met.
• Setting for “Sway Warning” in of the multi-information display is set to “On”.
(  P. 91)
• Vehicle speed is approximatel y 32 mph (50 km/h) or more.
• Width of traffic lane is approx imately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. ( P. 252)
■Temporary cancellation of functions
When the operation conditions are no longer met, a function may be temporarily can-
celed. However, when the operation conditio ns are met again, operation of the function
is automatically restored. ( P. 250)
■Lane departure alert function
The warning buzzer may be difficult to hear due to external noise, audio playback, etc.
Also, it may be difficult to f eel steering wheel vibrations due to the road conditions etc.
■Vehicle sway warning function
■White (yellow) lines are only on one side of road
The LDA system will not operate for the side on which white (yellow) lines could not be
recognized. When the system determines that the vehicle is
swaying while the vehicle sway warning function
is operating, a buzzer sounds and a warning
message urging the driver to rest and the sym-
bol shown in the illustration are simultaneously
displayed on the multi-information display.
Depending on the vehicle and road conditions,
the warning may not operate.

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Driving
■Conditions under which the vehicle-to-vehicle distance control mode may not function
correctly
In the case of the following conditions, o perate the brake pedal (or accelerator pedal,
depending on the situ ation) 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 struct ure, 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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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
WARNING
■When using the rear view monitor system
The rear view monitor system
is a supplemental device intended to assist the driver
when backing up. When backin g up, be sure to check visually behind and all around
the vehicle before proceeding.
Observe the following precautions to avoid an accident that could result in death or
serious injuries.
●Never depend on the rear view monitor system entirely when backing up. The image
and the position of the guide lines displaye d on the screen may differ from the actual
state.
Use caution, just as you woul d when backing up any vehicle.
●Be sure to back up slowly, depressing the brake pedal to control vehicle speed.
●The instructions given are only guide lines.
When and how much to turn the steering wheel will vary according to traffic condi-
tions, road surface conditions, vehicle condit ion, etc. when parking. It is necessary to
be fully aware of this before us ing the rear view monitor system.
●When parking, be sure to check that the parking space will accommodate your vehi-
cle before maneuvering into it.
●Do not use the rear view monitor system in the following cases:
• On icy or slick road surfaces, or in snow
• When using tire chains
• When the back door is not closed completely
• On roads that are not flat or stra ight, such as curves or slopes.
●In low temperatures, the screen may darken or the image may become faint. The
image could distort when the vehicle is movi ng, or you may become unable to see the
image on the screen. Be sure to check dire ct visually and with the mirrors all around
the vehicle before proceeding.
●If the tire sizes are changed, the position of the fixed guide lines displayed on the
screen may change.
●The camera uses a special lens. The distances between objects and pedestrians that
appear in the image displayed on the screen will differ from the actual distances.
(  P. 277)

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Driving
■Multi-terrain Monitor screen display
The amount of time that the Multi-terrain Monitor screen is displayed changes as follows
according to the vehicle speed at the time the VIEW switch was pressed.
The Multi-terrain Monitor screen is displayed if the vehicle speed is approximately 7 mph
(12 km/h) or less when the camera switch is pressed.
If the vehicle speed exceeds approximately 7 mph (12 km/h), the Multi-terrain Monitor
display is canceled.
The various screens of the Multi-terrain Monitor display information to support
several different driving situations, such as when checking for obstacles when
moving forward or in reverse, or when judging road surface conditions during
off-road driving.
■Front view & dual side view
Front view & dual side view can be used to check the area around the front of
the vehicle. • In addition to an image of the front of the vehicle, guide lines are displayed
in a composite view to provide refere nce for when deciding a direction to
move forward in.
• If the VIEW switch is pressed while the screen is displayed, the screen switches from normal to magnified display. (Pressing the switch again
returns the screen to the normal display)
• If the steering wheel is turned 270  or more, guide lines and other features
to support turning are automatically displayed.
Screen display and functions

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
●Screen description
Under vehicle terrain view selection
switch
Switches between front view and under
vehicle terrain view display each time
the switch is selected.
Automatic display mode selection
switch

P. 293
Tilt meter/slip display
Displays the vehicle’s estimated degree
of incline or indicates a tire slippage.
( P. 299)
Vehicle width lines (blue)
Indicate the width of the vehicle includ-
ing the outside rear view mirror.
1.5 ft. (0.5 m) distance guide line
(red)
3 ft. (1 m) distance guide line (blue) 6 ft. (2 m) distance guide line
(blue)
Items to indicate the estimated
distance from the front end of the vehi-
cle.
Front tire course line (yellow)
Indicates the estimated course of the
front tires according to steering wheel
position.
Forward movement guide line
(blue)
Indicates the estimated tire course of
the tightest possible turn.
Front tire contact line (blue)
Rear tire contact line (blue)
Items and indicate estimated tire
positions on the image.
Rear tire course line (yellow)
Indicates the estimated course of the
rear tires.
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■Rear view & dual side view/wide rear view
Guide lines are displayed in a composite view on an image of the area to the
rear of the vehicle to use as a refere nce when deciding a course of movement
and assist the driver to check the safety of the area to the rear of the vehicle or
to park the vehicle.
●Screen description
The following 2 types of display mode can be selected according to condi-
tions.
Angle selection switch
Switches between rear view & dual side vi ew display and wide rear view display each
time the switch is selected.
Tilt meter/slip display
 P. 299
Projected course lines (yellow)
Indicate the estimated course of the vehicle according to steering operations.
1.5 ft. (0.5 m) distance guide line (red)
3 ft. (1 m) distance guide line (yellow)
8 ft. (2.5 m) distan ce guide line (yellow)
, and indicate the estimated distance from the rear end of the vehicle.
Vehicle width extension guide line (blue)
Indicates the estimated vehicle width including the outside rear view mirrors.
Front tire contact line (blue)
Rear tire contact line (blue)
Items and indicate estimated tire positions on the image.
Rear view & dual side view displayWide rear view display
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■Panoramic view & wide front view
The image looking down at the vehicle from above and the image from the
front camera are displayed si multaneously and assist the driver to check con-
ditions in front, and to the right and left, of the vehicle at intersections or T-
junctions with poor visibility.
●Screen description
The following 2 types of display mode can be selected according to condi-
tions.
Panoramic view
Displays an image looking down at the vehicle from above.
Wide front view
Displays an image of the area to the front of the vehicle.
Display area
Guide line display selection switch
 P. 306
Automatic display mode selection switch
P. 293
Front distance guide line (blue)
Indicates a distance approximately 3 ft. (1 m) from the front end of the vehicle.
Forward projected course lines
Automatically displayed when the steering wheel is turned 90  or more from the cen-
ter position.
Indicates the estimated course of the vehicle according to steering wheel operations.
Distance guide line display modeProjected course line display mode
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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
●Using the vehicle width lines
The relative distance of obstacles from the vehicle width lines can be con-
firmed.
Example 1: When there is an obstacle in front of the vehicle
Operate the steering wheel so that the vehicle width line and
the obstacle do not overlap.
Example 2: When parking on the shoulder Approach the shoulder, but do not allow the vehicle width
line to overlap the curb or other obstacles.
After confirming the distance to the shoulder of the road,
maneuvering the vehicle so that the vehicle width line and
the curb or other obstacle are parallel allows the vehicle to
be parked evenly.

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●Switching modes
The display mode switches and the icon display changes each time the
guide line display selection switch is selected.• Projected course line display mode: Projected course lines that change according to steering wheel opera-
tions are displayed.
• Parking assist guide line display mode: Inverted steering wheel operations (p arking assist guide line) are dis-
played. Use this mode if you are used to how the vehicle handles (if you
can park without needing the course line display).
• Distance guide line display mode: Only distance guide lines are displayed.
●Guide lines
The panoramic view & rear view screen is explained here as an example.
Selected modeProjected course
line display modeParking assist guide line display modeDistance guide line display mode
Icon display
Distance guide line modeProjected course line display mode