Lexus GS 350 Owner's Manual page 344

The Blind Spot Monitor function is operational when
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The BSM function is turned on.
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Vehicle speed is greater than approximately 16 km/h (10 mph).
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The Blind Spot Monitor function will detect a vehicle when
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A vehicle in an adjacent lane overtakes your vehicle.
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Another vehicle enters the detection area when it changes lanes.
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Conditions under which the Blind Spot Monitor function will not detect a vehicle
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The Blind Spot Monitor function is not designed to detect the following types of vehicles
and/or objects:
Small motorcycles, bicycles, pedestrians etc.
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Vehicles traveling in the opposite direction
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Guardrails, walls, signs, parked vehicles and similar stationary objects
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Following vehicles that are in the same lane
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Vehicles driving 2 lanes across from your vehicle
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: Depending on conditions, detection of a vehicle and/or object may occur.
Conditions under which the Blind Spot Monitor function may not function correctly
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The Blind Spot Monitor function may not detect vehicles correctly in the following con-
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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
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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
GS350_300_GS F_OM_OM30J17E_(GE)
4-5. Using the driving support systems
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