Lexus GS F 2015 Owner's Manuals

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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 the decision when changing lanes
●The Rear Crossing 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 Crossing Traffic Alert function can be
switched on and off using the multi-information display. ( →P. 3 6 2 )
When switched on, the BSM indicator il luminates on the meter and the buzzer
sounds.
Outside rear view mirror indicators
Blind Spot Monitor function:
When a vehicle is detected in the blind spot, the outside rear view mirror indicator
comes on while the turn signal lever is not operated and the outside rear view mirror
indicator flashes while the turn signal lever is operated.
Rear Crossing Traffic Alert function:
When a vehicle approaching from the right or left rear of the vehicle is detected, the
outside rear view mirror indicators flash.
Rear Crossing Traffic Alert buzzer (Rear Crossing 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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■The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be difficult to
see.
■Rear Crossing Traffic Alert buzzer hearing
Rear Crossing Traffic Alert function may be difficult to hear over loud noises such as high
audio volume.
■When there is a malfunction in the Blind Spot Monitor
If a system malfunction is detected due to any of the following reasons, warning mes-
sages will be displayed: ( →P. 5 1 8 )
●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 Crossing Traffic Alert function on
and off
Settings can be changed from on the multi-information display (→P. 121, 129).
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
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XFor vehicles sold in Israel
XFor vehicles sold in Ukraine

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WA R N I N G
■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 any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
●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 surrounding area on the bumper.
●Do not paint the sensor or surrounding area on the bumper.
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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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 3.5 m (11.5 ft.) from
the side of the vehicle
The first 0.5 m (1.6 ft.) from the side of
the vehicle is not in the detection area
Approximately 3 m (9.8 ft.) from the
rear bumper
Approximately 1 m (3.3 ft.) forward
of the rear bumper
The Blind Spot Monitor function
The Blind Spot Monitor function detection areas
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WA R N I N G
■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 supplementary 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 judge if it is safe to change lanes, therefore over reliance
could cause an accident resulting in death or serious injury.
According to conditions, the system may not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.

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■The Blind Spot Monitor function is operational when
●The BSM function is turned on.
●Vehicle speed is greater than approximately 16 km/h (10 mph).
■The Blind Spot Monitor function will detect a vehicle when
●A vehicle in an adjacent lane overtakes your vehicle.
●Another vehicle enters the detection area when it changes lanes.
■Conditions under which the Blind Spot Monitor function will not detect a vehicle
The Blind Spot Monitor function is not designed to detect the following types of vehicles
and/or objects:
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles traveling in the opposite direction
●Guardrails, walls, signs, parked vehi cles and similar stationary objects*
●Following vehicles that are in the same lane*
●Vehicles driving 2 lanes across from your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Blind Spot Monitor function may not function correctly
●The Blind Spot Monitor function may not detect vehicles correctly in the following con-
ditions:
• During bad weather such as heavy rain, fog, snow etc.
• When ice or mud etc. is attached to the rear bumper
• When driving on a road surface that is wet due to rain, standing water etc.
• When there is a significant difference in speed between your vehicle and the vehicle that enters the detection area
• When a vehicle is in the detection area from a stop and remains in the detection area as your vehicle accelerates
• When driving up or down consecutive steep inclines, such as hills, a dip in the road
etc.
• When multiple vehicles approach with only a small gap between each vehicle
• When vehicle lanes are wide, and the vehicle in the next lane is too far away from
your vehicle
• When the vehicle that enters the detection area is traveling at about the same speed as your vehicle
• When there is a significant difference in height between your vehicle and the vehicle that enters the detection area
• Directly after the BSM function is turned on
• When your vehicle is towing a trailer (vehicles with towing package)
●Instances of the Blind Spot Monitor function unnecessarily detecting a vehicle and/ or
object may increase under the following conditions:
• When there is only a short distance between your vehicle and a guardrail, wall etc.
• When there is only a short distance between your vehicle and a following vehicle
• When vehicle lanes are narrow and a vehicle driving 2 lanes across from your vehi- cle enters the detection area
• When items such as a bicycle carrier are installed on the rear of the vehicle

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The Rear Crossing Traffic Alert functions when your vehicle is in reverse. It can
detect other vehicles approaching from the right 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 indi cators and sounding a buzzer.
The Rear Crossing Traffic Alert function
Approaching vehicles Detection areas
WA R N I N G
■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 Crossing Traffic Alert function is only an assist and is not a replacement for
careful driving. The driver must be careful when backing up, even when using the Rear
Crossing Traffic Alert function. The driver’s own visual confirmation of behind you and
your vehicle is necessary and be sure there are no pedestrians, other vehicles etc.
before backing up. Failure to do so could cause death or serious injury.
According to conditions, the system may not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
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The areas that vehicles can be detected in are outlined below.
To give the driver a more consistent time to react, the buzzer can alert for faster
vehicles from farther away.
Example:
■The Rear Crossing Traffic Alert function is operational when
●The BSM function is turned on.
●The shift lever is in R.
●Vehicle speed is less than approximately 8 km/h (5 mph).
●Approaching vehicle speed is between approximately 8 km/h (5 mph) and 28 km/h (18
mph).
The Rear Crossing Traffic Alert function detection areas
Approaching vehicleSpeedApproximate
alert distance
Fast28 km/h (18 mph)20 m (65 ft.)
Slow8 km/h (5 mph)5.5 m (18 ft.)
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