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

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
●The shape of the obstacle may prevent a sensor from detecting it. Pay particular atten-
tion to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materi
als that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of your vehi-
cle
●The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection distance
may shorten, or detect ion may be impossible.
• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obstacle detection and display. Even at slow speeds, there is a possibility th at the obstacle will come within the sensor’s detection
areas before the display is shown and the buzzer sounds.
• Thin posts or objects lower than the sens or may not be detected when approached,
even if they have been detected once.
• It might be difficult to hear beeps due to th e volume of audio system or air flow noise
of the air conditioning system.
■If “Clean Park Sonar”/“Clean Parking Assist Sensor” is displayed on the multi-informa-
tion display
A sensor may be dirty or covered with snow or ic e. In such cases, if it is removed from the
sensor, the system should return to normal.
Also, due to the sensor being frozen at low temperatures, a malfunction display may
appear or an obstacle may no t be detected. If the sensor thaws out, the system should
return to normal.
■If “Check Park Sonar System”/ “Parking Assist Malfunction” is displayed on the multi-
information display
Depending on the malfunction of the sensor, the device may not be working normally.
Have the vehicle inspected by your Lexus dealer.
■Certification for the intuitive parking assist (Canada only)
This ISM device complies with Canadian ICES-001.
■Customization
Settings (e.g. buzzer sounds volume) can be changed.
(Customizable features: P. 576)

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Driving
WARNING
■When using the intuitive parking assist
Observe the following precautions.
Failing to do so may result in the vehicle being unable to be driven safely and possibly
cause an accident.
●Do not use the sensor at speeds in excess of 6 mph (10 km/h).
●The sensors’ detection areas and reaction ti mes are limited. When moving forward or
reversing, check the areas surrounding the vehicle (especially the sides of the vehi-
cle) for safety, and drive slowly, using the brake to control the vehicle’s speed.
●Do not install accessories within the sensors’ detection areas.
NOTICE
■When using intuitive parking assist
In the following situations, the system may not function correctly due to a sensor mal-
function etc. Have the vehicle checked by your Lexus dealer.
●A buzzer does not sound when you tu rn the intuitive parking assist on.
●The intuitive parking assist operation disp lay flashes, and a buzzer sounds when no
obstacles are detected.
●If the area around a sensor co llides with something, or is subjected to strong impact.
●If the bumper collides with something.
●If the display shows continuously without a beep.
●If a display error occurs, first check the sensor.
If the error occurs even if there is no ice, sn ow or mud on the sensor, it is likely that the
sensor is malfunctioning.
■Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in th e sensor malfunctioning.

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GX460_OM_OM60R27U_(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

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
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Driving
BSM (Blind Spot Monitor)
The Blind Spot Monitor is a system that has 2 functions;
●The Blind Spot Monitor function
Assists the driver in making th
e decision when changing lanes
●The Rear Cross Traffic Alert function
Assists the driver when backing up
These functions use same sensors.
: If equipped
Summary of the Blind Spot Monitor

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Driving
■The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be difficult to
see.
■The Rear Cross Traffic Alert buzzer hearing
The Rear Cross Traffic Alert buzzer may be difficult to hear over loud noises such as high
audio volume.
■When “BSM NOT AVAILABLE”/“ BSM not available” is shown on the multi-informa-
tion display
The sensor voltage has become abnormal, water, snow mud, etc., may be built up in the
vicinity of the sensor area of bumper ( P. 360). Removing the water, snow, mud, etc.,
from the vicinity of the sensor area bumper should return it to normal. Also, the sensor
may not function normally when used in extremely hot or cold weather.
■When “CHECK BSM SYSTEM”/“Check BSM sy stem” is shown on the multi-informa-
tion display
There may be a sensor malfunction or misa ligned. Have the vehicle inspected by your
Lexus dealer.
■Certification for the Blind Spot Monitor
For vehicles sold in the U.S.A., Hawaii, Guam, Puerto Rico and Saipan
For vehicles sold in Canada

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
WARNING
■Handling the radar sensor
One Blind Spot Monitor sensor is installed in
side the left and right side of the vehicle
rear bumper respectively. Observe the follow ing to ensure the Blind Spot Monitor can
function correctly.
●Do not subject the sensor or surrounding area on the bumper to a strong impact. If
the sensor moves even slight ly off position, the system may malfunction and vehicles
that enter the detection area may not be detected. If the sensor or surrounding area is
subject to a strong impact, always have the area inspected by your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor or surrounding area on the
bumper.
●Do not modify the sensor or su rrounding area on the bumper.
●Do not paint the rear bumper any colo r other than an official Lexus color.
●If the sensor needs to be replaced, contact your Lexus dealer.
●Keep the sensor and its surrounding area on
the bumper clean at all times.

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Driving
The Blind Spot Monitor function uses radar sensors to detect vehicles that are
traveling in an adjacent lane in the area that is not reflected in the outside rear
view mirror (the blind spot ), and advises the driver of the vehicles existence via
the outside rear view mirror indicator.
The areas that vehicles can be detected in are outlined below.
The range of the detection area
extends to:
Approximately 11.5 ft. (3.5 m) from
the side of the vehicle
The first 1.6 ft. (0.5 m) from the side of
the vehicle is not in the detection area
Approximately 9.8 ft. (3 m) from the
rear bumper
Approximately 3.3 ft. (1 m) forward
of the rear bumper
The Blind Spot Monitor function
The Blind Spot Monitor function detection areas
1
2
3
WARNING
■Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The Blind Spot Monitor function is a supp lementary function which alerts the driver
that a vehicle is present in the blind spot. Do not overly rely on the Blind Spot Monitor
function. The function cannot judg e if it is safe to change lanes, therefore over reliance
could cause an accident resultin g in death or serious injury.
According to conditio ns, the system may not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
The Rear Cross Traffic Alert functions when your vehicle is in reverse. It can
detect other vehicles approaching from the ri
ght or left rear of the vehicle. It uses
radar sensors to alert the driver of the other vehicle’s existence through flashing
the outside rear view mirror indicators and sounding a buzzer.
The Rear Cross Traffic Alert function
Approaching vehicles Detection areas
WARNING
■Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The Rear Cross Traffic Alert function is only an assist and is not a replacement for care-
ful driving. Driver must be careful when ba cking up, even when using the Rear Cross
Traffic Alert function. The driver’s own visual confirmation of behind you and your vehi-
cle is necessary and be sure there are no pe destrians, other vehicles etc. before back-
ing up. Failure to do so could cause death or serious injury.
According to conditio ns, the system may not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
12

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
■Conditions under which the Re
ar Cross Traffic Alert function will not detect a vehicle
The Rear Cross Traffic Alert function is no t designed to detect the following types of
vehicles and/or objects.
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles approaching from directly behind
●Guardrails, walls, signs, parked vehi cles and similar stationary objects*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking spaces next to your vehicle*
●Vehicles backing up in the parking space next to your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Re ar Cross Traffic Alert function may not function cor-
rectly
The Rear Cross Traffic Alert function may no t detect vehicles correctly in the following
conditions:
●During bad weather such as heavy rain, fog, snow etc.
●When ice or mud etc. is attached to the rear bumper
●When multiple vehicles approach continuously
●Shallow angle parking
●When a vehicle is approaching at high speed
●When parking on a steep incline, su ch as hills, a dip in the road etc.
●Directly after the Blind Spot Monitor system turned on
●When your vehicle is towing a trailer (with towing hitch)
●When items such as a bicycle carrier ar e installed on the rear of the vehicle
●Directly after the engine is started with the BSM main switch on
●When the sensors cannot detect vehicles
because of obstacles

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GX460_OM_OM60R27U_(U)5-4. Using the other interior features
■Conditions unfavorable
to correct operation
The compass may not show the correct di rection in the following conditions:
●The vehicle is stopped immediately after turning.
●The vehicle is on an inclined surface.
●The vehicle is in a place where the earth’s magnetic field is subject to interference by
artificial magnetic fields (underground car park/parking lot, under a steel tower,
between buildings, roof car park/parking lot, near an intersection, near a large vehicle,
etc.).
●The vehicle has become magnetized.
(There is a magnet or metal object near the inside rear view mirror.)
●The battery has been disconnected.
●A door is open.
WARNING
■While driving the vehicle
Do not adjust the display. Adjust the di splay only when the vehicle is stopped.
■When doing the circling calibration
Secure a wide space, and watch out for people and vehicles in the vicinity. Do not vio-
late any local traffic rules while performing circling calibration.
NOTICE
■To avoid compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror.
Doing this may cause the compass sensor to malfunction.
■To ensure normal operation of the compass
●Do not perform circling calibration of the compass in a place where the earth’s mag-
netic field is subject to interferen ce by artificial magnetic fields.
●During calibration, do not operate electric systems (moon roof, power windows, etc.)
as they may interfere with the calibration.