2020 Lexus GS350 sensor

GS350_GS F_OM_OM30J07U_(U)
2774-5. Using the driving support systems
4
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 your vehicle is pointing upwards
(caused by a heavy load in the luggage com-
partment, etc.)
●Preceding vehicle has an extremely high
ground clearance
●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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GS350_GS F_OM_OM30J07U_(U)4-5. Using the driving support systems
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.
Switching the BSM function
The Blind Spot Monitor function and Rear Cross Traffic Alert function can be
switched on and off using the multi-information display. (P. 287)
When switched on, the BSM indicator illuminates on the meter and the buzzer
sounds.
Outside rear view mirror indicators
Blind Spot Monitor function:
When a vehicle is detected in the blind sp ot, the outside rear view mirror indicator
comes on while the turn signal lever is not operated. If the turn signal lever is operated
toward the detected side, the outsid e rear view mirror indicator flashes.
Rear Cross Traffic Alert function:
When a vehicle approaching from the right or left rear of the vehicle is detected, the
outside rear view mi rror indicators flash.
Rear Cross Traffic Alert buzzer (Rea r Cross Traffic Alert function only)
When a vehicle approaching from the right or left rear of the vehicle is detected, a
buzzer sounds from behind the rear seat.
: If equipped
Summary of the Blind Spot Monitor
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GS350_GS F_OM_OM30J07U_(U)
2874-5. Using the driving support systems
4
Driving
■The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be difficult to
see.
■Rear Cross Traffic Alert buzzer hearing
Rear Cross Traffic Alert function may be diffic ult to hear over loud noises such as high
audio volume.
■When there is a malfunction in the Blind Spot Monitor
If a system malfunctio n is detected due to any of th e following reasons, warning mes-
sages will be displayed: ( P. 442)
●There is a malfunction with the sensors
●The sensors have become dirty
●The outside temperature is extremely high or low
●The sensor voltage has become abnormal
■Switching the Blind Spot Monitor function and Rear Cross Traffic Alert function on and
off
Settings can be changed from on the multi-information display (P. 106, 114).
Press or on the meter control switch and select “BSM”.
Each time on the meter control switch is pressed, the function switches between
“On” and “Off”.
■Certification for the Blind Spot Monitor
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico
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GS350_GS F_OM_OM30J07U_(U)
2894-5. Using the driving support systems
4
Driving
WARNING
■Handling the radar sensor
●Keep the sensor and its surrounding area on the bumper clean at all times.
●Do not subject the sensor or surrounding area on the bumper to a strong impact. If
the sensor moves even slightly 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.
One Blind Spot Monitor sensor is installed
inside the left and right side of the vehicle rear
bumper respectively. Observe the following to
ensure the Blind Spot Monitor can function
correctly.

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GS350_GS F_OM_OM30J07U_(U)4-5. Using the driving support systems
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 vehicle’s 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
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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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GS350_GS F_OM_OM30J07U_(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. The driver must be careful when backing up, even when using the Rear
Cross Traffic Alert function. The driver’s own visual confirmation of behind you and
your vehicle is necessary and be sure ther e are no pedestrians, other vehicles etc.
before backing 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.
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GS350_GS F_OM_OM30J07U_(U)4-5. Using the driving support systems
■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 BSM function is turned on
●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 function is turned on
●When the sensors cannot detect vehicles
because of obstacles

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GS350_GS F_OM_OM30J07U_(U)5-2. Using the air conditioning system and defogger
■Air conditioning filter

P. 409
■Customization
Settings (e.g. exhaust gas sensor sensitivity) can be changed.
(Customizable features: P. 542)
WARNING
■To prevent the windshield from fogging up
●Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outside air and that of the windshield can cause
the outer surface of the windshield to fog up, blocking your vision.
■To prevent burns
●Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on.
●Vehicles with windshield wiper de-icer: Do not touch the glass at lower part of the
windshield or to the side of the front pill ars when the windshield wiper de-icer is on.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the engine is
stopped.
●Do not place anything on the instrument
panel which may cover th e air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.