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2814-3. Operating the lights and wipers
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
In the situations below, the system may not be able to correctly detect the
surrounding brightness levels, and may flash or expose nearby pedestrians
to the high beam. Therefore, you should consider turning the high beams on
or off manually rather than relying on the Automatic High Beam system.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or camera sensor is deformed or dirty.
• The camera sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, tail lights
or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are
changing color, or have are not aimed properly.
• When driving through an area of intermittently changing brightness and
darkness.
• When frequently and repeatedly driving ascending/descending roads, or
roads with rough, bumpy or uneven surfaces (such as stone-paved roads,
gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding
road.
• There is a highly reflective object ahead of the vehicle, such as a sign or
a mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a
truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeatedly being switched between in
an abnormal manner.
• The driver believes that the high beam may be causing problems or dis-
tress to other drivers or pedestrians nearby.
CAUTION
Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care
to observe your surroundings and turning high beam on or off manually if
necessary.
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2824-3. Operating the lights and wipers
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
Notes when using the Automatic High Beam system
Do not spill liquid onto the inside rear view mirror or the camera sensor.
Do not apply window tinting or stickers to the camera sensor or the area of
windshield near the camera sensor.
Do not place items on the dashboard. There is a possibility that the camera
sensor will mistake items reflected in the windshield for streetlights, the
headlights of other vehicles, etc.
Do not install a parking tag or any other accessories near or around the
inside rear view mirror and the camera sensor.
Do not overload the vehicle.
Do not modify the vehicle.
Do not replace windshield with non-genuine windshield.
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Do not replace headlights with non-genuine headlights.
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Observe the following to ensure that the
Automatic High Beam functions cor-
rectly.
Do not touch the camera sensor.
Do not subject the inside rear view mir-
ror or the camera sensor to a strong
impact.
Page 349 of 1014
3384-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
LKA (Lane-Keeping Assist)
While driving on a freeway or motor highway that has lane markers
and no sharp curves, the system recognizes the lanes using a cam-
era located above the inside rear view mirror as a sensor to assist
the driver with staying in the lane. The LKA system has two func-
tions.
Camera sensor
: If equipped
Summary of functions
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3474-5. Using the driving support system
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Driving
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
Camera sensor (P. 338)
Observe the following to ensure that the LKA system functions correctly.
Keep the windshield clean at all times.
Performance could be affected if the windshield is dirty, or if raindrops,
condensation or ice are adhering to the windshield.
When adjusting the rear view mirror, make sure that it does not block the
camera lens.
Do not attach window tinting to the windshield.
Do not install an antenna in front of the camera lens.
If the windshield is fogged up, use the windshield defogger to remove fog
from the windshield.
When it is cold, using the heater with air blowing to the feet may allow the
upper part of the windshield to fog up. This will have a negative effect on
the images.
Do not place anything on the dashboard.
The camera sensor may recognize the image reflected on the windshield
as lane markers by mistake.
Do not scratch the camera lens, or let it get dirty.
When cleaning the inside of the windshield, be careful not to get any glass
cleaner etc. on the lens. Also, do not touch the lens.
For lens repair, contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Do not change the installation position or direction of the camera sensor
or remove it. The direction of the camera sensor is precisely adjusted.
Do not subject the camera sensor to strong impact or force, and do not dis-
assemble the camera sensor.
Do not attach a sticker or other items to
the windshield near the camera sensor.
Do not install or place anything near the
camera.
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4194-5. Using the driving support system
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Driving
GS450h_300h_OM_OM30D53E_(EE)
BSM main switch
Pressing the switch turns the system on or off. When the switch is set to
on, the switch’s indicator illuminates and the buzzer sounds. Common
switch for Blind Spot Monitor function and Rear Crossing Traffic Alert
function.
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 out-
side rear view mirror indicator flashes while the turn signal lever is oper-
ated.
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.
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4204-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
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 messages will be displayed: (P. 845, 855)
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
Certification for the Blind Spot Monitor
For vehicles sold in Russia
type approval number: POCC DE.ML05.H01144
For vehicles sold in Ukraine
type approval number: 1O094.000966-13
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4244-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
The Blind Spot Monitor function uses radar sensors to detect vehi-
cles 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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4274-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
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 indicators and sounding a buzzer.
The Rear Crossing Traffic Alert function (if equipped)
Approaching vehicles Detection areas
CAUTION
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. Fail-
ure 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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