steering Lexus GX460 2021 / Workshop Manual

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GX460_OM_OM60T19U_(U)4-5. Using the driving support systems
Front distance guide line (blue)
Indicates a distance approximately 3 ft. (1 m) from the front end of the vehicle.
Rear vehicle width extension guide lines
Indicate the estimated course of the vehicle when backing up straight.
• The displayed width is wider than the actual vehicle width.
• In projected course line disp lay mode, this item overlaps the projected course lines
when going straight.
Side projected course line (yellow)
Indicates the projected reverse course calcu lated by the angle of the steering wheel.
The projected reverse course line on the outside of the turn is displayed according to
the direction of the steering wheel.
Rear distance guide line
Indicates the estimated distance from the end of the rear bumper (at the center). (Red
line: approximately 1.5 ft. [0.5 m] away. Ye llow line: approximately 3 ft. [1 m] away.)
In projected course line display mode, the re ar distance guide line changes according
to steering wheel operations.
Projected reverse course (yellow)
Changes according to steering wheel operations and indicates the estimated course
of the vehicle.
Rear distance guide line (blue)
Indicates a distance approximately 1.5 ft. (0.5 m) from the end of the rear bumper (at
the center).
Parking assist guide line (blue)
Indicates the estimated tire course of the tightest possible turn in reverse.
Intuitive parking assist*
When the intuitive parking assist is on, an icon will be displayed when an obstacle is
detected. (Refer to P. 270 for informat ion about the intuitive parking assist.)
Vehicle center line (blue)
Indicates the estimated vehicle center on the ground.
*: If equipped
Parking assist guide line display mode
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GX460_OM_OM60T19U_(U)
3174-5. Using the driving support systems
4
Driving
●Parking operation (using the estimated curse line)
When parking in a space which is in the reverse direction to the space
described in the procedure below, the steering directions will be reversed.
Shift the shift lever to the R position.
Turn the steering wheel so that
the estimated course lines are
within the parking space, and
back up slowly. Parking space
Estimated course lines
When the rear position of the
vehicle has entered the parking
space, turn the steering wheel so
that the vehicle width extension
guide lines are within the left and
right dividing lines of the parking
space. Vehicle width extension guide
line
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GX460_OM_OM60T19U_(U)4-5. Using the driving support systems
Once the vehicle width extension gu
ide lines and the parking space lines
are parallel, straighten the steering wh eel and back up slowly until the vehi-
cle has completely entered the parking space.
Stop the vehicle in an approp riate place, and finish parking.
●Parking operation (using the parking assist guide line)
When parking in a space which is in the reverse direction to the space
described in the procedure below, the steering directions will be reversed.
Shift the shift lever to the R position.
Back up until the parking assist
guide line meets the edge of the
left-hand dividing line of the park-
ing space. Parking assist guide line
Parking space dividing line
Turn the steering wheel all the way to the right, and back up slowly.
Once the vehicle is parallel with the parking space, straighten the steering
wheel and back up slowly until the vehicle has completely entered the
parking space.
Stop the vehicle in an approp riate place, and finish parking.
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GX460_OM_OM60T19U_(U)
3194-5. Using the driving support systems
4
Driving
■Panoramic view & rear view/wide rear view
The screen can be displayed when the shift lever is in R.
■Guide lines
If the back door is not closed, guide lines will not be displayed. If the guide lines do not
display even when the back door is closed, have the vehicle inspected at your Lexus
dealer.
WARNING
■Guide lines
The tire position indicator lines and vehicl e position indicator lines may differ from
actual vehicle positions depending on the number of passengers, cargo weight, road
grade, road surface conditions, brightness of the surrounding environment, etc. Always
drive the vehicle while confirming the safety of your surroundings.
■When using panoramic view & rear view or wide rear view
●If the vehicle width extension guide lines and projected course lines are not aligned
with the steering wheel in the center position, drive straight on a road without as little
traffic and as few bends or curves as poss ible for approximately 5 minutes or more. If
the symptom is not resolved, have the vehicle inspected by your Lexus dealer.
●Rear vehicle width extension guide lines are displayed wider than the actual vehicle
width. When backing up, always confirm th e safety of your surroundings and the area
to the rear of the vehicle.

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GX460_OM_OM60T19U_(U)4-5. Using the driving support systems

The projected course lines move even though the steering wheel is straight (vehi-
cle width extension guide lines and projected course lines are not aligned)
There is a malfunction in the signals being
output by the steering sensorHave the vehicle inspected by your Lexus
dealer.
Guide lines are not displayed
The back door is open
Close the back door.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
“!” is displayed
The battery is disconnected and recon-
nected
Turn the steering wheel fully to right and
left.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
There is a malfunction in the Multi-terrain
MonitorHave the vehicle inspected by your Lexus
dealer.
NOTICE
■How to use the camera
●The Multi-terrain Monitor system may not operate properly in the following cases.
• If the front or the rear of the vehicle or the outside rear view mirror has been hit,
the camera’s position and mounting angle may have changed.
• As the camera has a water proof construction, do not detach, disassemble or modify it. This may ca use incorrect operation.
• When cleaning the camera lens, flush the camera with a large quantity of water
and wipe it with a soft and wet cloth. Strongly rubbing the camera lens may cause
the camera lens to be scratched and unable to transmit a clear image.
• Do not allow organic solvent, car wax, window cleaner or glass coat to adhere to
the camera. If this happens, wi pe it off as soon as possible.
• If the temperature changes rapidly, such as when hot water is poured on the vehi- cle in cold weather, the system may not operate normally.
• When washing the vehicle, do not apply intensive bursts of water to the camera or camera area. Doing so may result in the camera malfunctioning.
• When the camera is used under fluorescen t lights, sodium light or mercury light
etc., the lights and the illuminated areas may appear to flicker.
• The camera can be damaged by flying rocks and other debris.
●Do not expose the camera to strong impact as this could cause a malfunction. If this
happens, have the vehicle inspected by your Lexus dealer as soon as possible.
Likely causeSolution

GX460_OM_OM60T19U_(U)
3514-5. Using the driving support systems
4
Driving
■When the Crawl Control system is operated continuously
This may cause the brake actuator to overheat . In this case, the Crawl Control system will
stop operating, a buzzer will sound, the Crawl Control indicator will turn off after flashing
and the “TRAC OFF” indicator will come on. In this case, quickly stop the vehicle in a safe
place and give the actuator adequate time to cool off. Refrain from using the system until
the “TRAC OFF” indicator turns off. (The ve hicle can be driven normally during this
time.)
■When depressing the accelerator pedal while the Crawl Control is operating
Multi-terrain Select operates in AUTO mode. ( P. 288)
■If the automatic transmission system overheats
The system will cease operation, a buzzer w ill sound and a warning message will be dis-
played to alert the driver. Stop the vehicle in a safe place until the warning message turns
off. ( P. 528)
■Sounds and vibrations caused by the Crawl Control system
●A sound may be heard from the engine compartment when the engine is started or just
after the vehicle begins to move. This soun d does not indicate that a malfunction has
occurred in Crawl Control system.
●Either of the following conditions may occu r when the Crawl Control system is operat-
ing. None of these are indicators that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard afte r the vehicle comes to a stop.
■If the slip indicator comes on...
It may indicate a malfunction in the system. Cons ult your Lexus dealer.
WARNING
■When using Crawl Control
Do not rely solely on the Crawl Control. This function does not extend the vehicle’s
performance limitations. Always thoroughly check the road conditions, and drive
safely.
■These conditions may cause the system not to operate properly
When driving on the following surfaces, the sy stem may not be able to maintain a fixed
low speed, which may re sult in an accident:
●Extremely steep inclines.
●Extremely uneven surfaces.
●Snow-covered roads, or other slippery surfaces.

GX460_OM_OM60T19U_(U)
3534-5. Using the driving support systems
4
Driving
■Operating tips
The system will operate when the shift lever is in a position other than P, however to make
effective use of the system it is recommended to select a lower shift range.
■The system will not operate when
The transfer mode is in H4.
■If the downhill assist control system indicator flashes
●In the following situations, the indicator flashes and the system will not operate:
• The transfer mode is not in L4.
• The shift lever is in P.
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds approximately 15 mph (25 km/h).
• The brake system overheats.
●In the following situations, the indicator flas hes to alert the driver, but the system will
operate:
• The shift lever is in N.
• The “DAC” switch is turned of f while the system is operating.
The system will gradually ceas es operation. The indicator will flash during operation,
and then go off when the system is fully off.
■When the downhill assist control system is operated continuously
This may cause the brake actuator to overheat. In this case, the downhill assist control
system will stop operating, a buzzer will sound and the downhill assist control system
indicator will start flashing, and the “TRAC OFF” indicator light will come on. Refrain
from using the system until the downhill assi st control system indicator stays on and
“TRAC OFF” indicator light turns off. (The vehicle can be driven normally during this
time.)
■Sounds and vibrations caused by the downhill assist control system
●A sound may be heard from the engine compartment when the engine is started or just
after the vehicle begins to move. This soun d does not indicate that a malfunction has
occurred in downhill assist control system.
●Either of the following conditions may occur when the do wnhill assist control system is
operating. None of these are indicators that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard afte r the vehicle comes to a stop.
■System malfunction
In the following cases, have your vehicle checked by your Lexus dealer.
●The downhill assist control system indicator does not come on when the engine switch
is turned to IGNITION ON mode.
●The downhill assist control system indicator does not come on when the “DAC” switch
is shifted to ON.
●The slip indicator comes on.

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GX460_OM_OM60T19U_(U)4-5. Using the driving support systems
■Sounds and vibrations caused by the ABS/Mu
lti Terrain ABS, brake assist, VSC, Trailer
Sway Control, TRAC/Active TRAC and hill-start assist control systems
●A sound may be heard from the engine compartment when the brake pedal is
depressed repeatedly, when the engine is started or just after the vehicle begins to
move. This sound does not indicate that a malfunction has occurred in any of these sys-
tems.
●Any of the following conditions may occur when the above systems are operating.
None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• The brake pedal may pulsate slightly afte r the ABS/Multi Terrain ABS is activated.
• The brake pedal may move down slightly after the ABS/Multi Terrain ABS is acti-
vated.
■Automatic reactivation of TRAC/Active TR AC, Trailer Sway Control and VSC systems
After turning the TRAC/Activ e TRAC, Trailer Sway Control and VSC systems off, the
systems will be automatically re-ena bled in the following situations:
●When the engine switch is turned off
●If only the TRAC/Active TRAC system is turned off, the TRAC/Active TRAC will turn
on when vehicle speed increases
If both the TRAC/Active TRAC and VSC syst ems are turned off, automatic re-enabling
will not occur when vehicle speed increases.
■When the brake system operates continuously
The brake actuator may overheat. In this case, the TRAC/Active TRAC and hill-start
assist control systems will stop operating, a buzzer will sound and the “TRAC OFF” indi-
cator will come on. Refrain from using the system until the message goes off. (There is no
problem with continuing normal driving.)
■If the slip indicator comes on...
It may indicate a malfunction in the TRAC /Active TRAC, VSC/Trailer Sway Control or
hill-start assist control system. Consult your Lexus dealer.
■KDSS
Some difference of vehicle height between left and right side can appear. This does not
indicate a malfunction in the KDSS system. For more information, contact your Lexus
dealer.

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GX460_OM_OM60T19U_(U)4-5. Using the driving support systems
WARNING
■Replacing tires
Make sure that all tires are
of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tire s are inflated to the recommended tire infla-
tion pressure level.
The ABS/Multi Terrain ABS, TRAC/Active TRAC, Trailer Sway Control and VSC sys-
tems will not function correctly if diff erent tires are installed on the vehicle.
Contact your Lexus dealer for further in formation when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modi fying the suspension will affect the driving
assist systems, and may cause a system to malfunction.
■Trailer Sway Control precaution
The Trailer Sway Control system is not able to reduce trailer sway in all situations.
Depending on many factors such as the condit ions of the vehicle, trailer, road surface
and driving environment, the Trailer Sway Control system may not be effective. Refer to
your trailer owner’s manual for information on how to tow your trailer properly.
■If trailer sway occurs
Observe the following precautions.
Failing to do so may cause death or serious injury.
●Firmly grip the steering wh eel. Steer straight ahead.
Do not try to control trailer sway by turning the steering wheel.
●Begin releasing the accelerator pedal immediately but very gradually to reduce
speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle and trailer
should stabilize. ( P. 195)

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GX460_OM_OM60T19U_(U)4-6. Driving tips
■Tire chain installation
Observe the following precautions when installing and removing chains:
●Install and remove tire chains in a safe location.
●Install tire chains on the rear tires. Do
not install tire chains on the front tires.
●Install tire chains on rear tires as tightly as possible. Retighten chains after driving 1/4 -
1/2 mile (0.5 - 1.0 km).
●Install tire chains following the instructions provided with the tire chains.
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehi cle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h ), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
●Do not use LDA (Lane Departure Alert) system.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the ti re chains being used, or 30
mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
●Slow down sufficiently before entering a cu rve to ensure that vehicle control is main-
tained.
●Do not use LDA (Lane Departure Alert) system.
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow ti res from Lexus dealers or legitimate tire
retailers.
This is because the removal an d attachment of snow tires affects the operation of the
tire pressure warning va lves and transmitters.
■Fitting tire chains
The tire pressure warning valv es and transmitters may not function correctly when tire
chains are fitted.