mirror Lexus GS300h 2017 Owner's Guide

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4-1. Before driving
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
■Tire information
●Increase the tire inflation pressure to 20.0 kPa (0.2 kgf/cm 2
or bar, 3 psi) greater than
the recommended value when towing. ( P. 555)
●Increase the air pressure of the trailer tires in accordance with the total trailer weight
and according to the values recommended by the manufacturer of your trailer.
■Trailer lights
●Please consult any authorized Lexus retailer or Lexus authorized repairer, or any reli-
able repairer when installing trailer lights, as incorrect installation may cause damage to
the vehicle’s lights. Please take care to comply with your state’s laws when installing
trailer lights.
●Check that the turn signal lights and stoplights are operating correctly every time you
hitch up the trailer. Directly wiring up to your vehicle may damage the electrical systemand stop the lights from functioning correctly.
■Break-in schedule
Lexus recommends that vehicles fitted with new power train components should not be
used for towing trailers for the first 800 km (500 miles).
■Safety checks before towing
●Check that the maximum load limit for the towing hitch/bracket and hitch ball is not
exceeded. Bear in mind that the coupling weight of the trailer will add to the load
exerted on the vehicle. Also make sure that the total load exerted on the vehicle is
within the range of the weight limits. ( P. 211)
●Ensure that the trailer load is secure.
●Supplementary outside rear view mirrors should be added to the vehicle if the traffic
behind cannot be clearly seen with standard mirrors. Adjust the extending arms of
these mirrors on both sides of the vehicle so that they always provide maximum visibility
of the road behind.
■Maintenance
●Maintenance must be performed more frequently when using the vehicle for towing
due to the greater weight burden placed on the vehicle compared to normal driving.
●Retighten all bolts securing the hitching ball and bracket after towing for approximately
1000 km (600 miles).
NOTICE
■When the rear bumper strengthening material is aluminum
Ensure the steel bracket part does not come directly in contact with that area.
When steel and aluminum come into contact, there is a reaction similar to corrosion,
which will weaken the section concerned and may result in damage. Apply a rust inhib-
itor to parts that will come in co ntact when attaching a steel bracket.

2664-5. Using the driving support systems
GS450h_300h_OM_OM30F92E_(EE)
WARNING
●Do not subject the camera sensor to a strong impact.
●Do not change the installation position or di rection of the camera sensor or remove it.
●Do not disassemble the camera sensor.
●Do not install an electronic device or device that emits strong electric waves near the
camera sensor.
●Do not modify any components of the vehicle around the camera sensor (inside rear
view mirror, etc.) or ceiling.
●Do not attach any accessories that may obstruct the camera sensor to the hood, front
grille or front bumper. Contact any author ized Lexus retailer or Lexus authorized
repairer, or any reliable repairer for details.
●If a surfboard or other long object is to be mounted on the roof, make sure that it will
not obstruct the camera sensor.
●Do not modify the headlights or other lights.

3144-5. Using the driving support systems
GS450h_300h_OM_OM30F92E_(EE)
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. 315)
When switched on, the BS M 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 spot, the outside rear view mirror indicator
comes on while the turn signal lever is not op erated. If the turn signal lever is operated
toward the detected side, the outside rear view mirror indicator flashes.
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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4-5. Using the driving support systems
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Driving
GS450h_300h_OM_OM30F92E_(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 mes-
sages will be displayed: ( P. 466)
●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. 111).
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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4-5. Using the driving support systems
4
Driving
GS450h_300h_OM_OM30F92E_(EE) 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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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 supplementary function which alerts the driver
that a vehicle is present in th e blind spot. Do not overly rely on the Blind Spot Monitor
function. The function cannot judge if it is sa fe to change lanes, therefore over reliance
could cause an accident resulting in death or serious injury.
According to conditions, the system may no t function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.

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4-5. Using the driving support systems
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Driving
GS450h_300h_OM_OM30F92E_(EE) The Rear Crossing 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 flashin g
the outside rear view mirror in dicators and sounding a buzzer.
The Rear Crossing 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 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 no t function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
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347
5-2. Using the air conditioning system and defogger
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Interior features
GS450h_300h_OM_OM30F92E_(EE)
■Adjusting the temperature setting
Press “ ”on to increase the temperature and “ ” to decrease the tem-
perature.
Without rear air conditioning system
When “DUAL” on the control screen is selected or the passenger’s side tem-
perature control button is pressed, the temperature for the driver and passen-
ger seats can be adjusted separately.
With rear air conditioning system
When “3-ZONE” on the control screen is selected or the passenger’s side
temperature control button is pressed, the temperature for the driver’s, front
passenger’s and rear seats ( P. 358) can be adjusted separately.
The air conditioning system switches be tween individual and simultaneous modes
each time 3-ZONE is selected.
■Adjusting the fan speed setting
Press to increase the fan speed and to decrease the fan speed.
Press the “OFF” button to turn the fan off.
■Change the airflow mode
To change the air outlets, press .The air outlets used are switched each time the button is pressed. ( P. 348)
■S-FLOW mode
Press .
When is pressed, the airflow changes as follows.
Without rear air conditioning system: Air flows to the front seats only. *
With rear air conditioning system: Air flow s to the front seats only, and if the pas-
senger seat is unoccupied, the set temperature, outside humidity and temperature
inside the cabin are assessed, and ai r flows to the driver seat only.*
* : Air may also flow to the rear seats depending on the situation.
■Other functions ● Switching between outside air and recirculated air modes ( P. 351)
● Defogging the windshield ( P. 352)
● Defogging the rear window and outside rear view mirrors ( P. 352)

3525-2. Using the air conditio ning system and defogger
GS450h_300h_OM_OM30F92E_(EE)
■Defogging the windshield
Defoggers are used to defog the windshield and front side windows.
Press .
Set the outside/recirculated air mode button to outside air mode if the recirculated
air mode is used. (It may switch automatically.)
To defog the windshield and the side windows early, turn the air flow and tempera-
ture up.
To return to the previous mode, press again when the windshield is
defogged.
■Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window and to remove raindrops, dew
and frost from the outside rear view mirrors.
Press .
The defoggers will automatically turn off after 15 to 60 minutes. The operation
time changes according to the ambient temperature and vehicle speed.
■Windshield wiper de-icer (if equipped)
This feature is used to prevent ice fr om building up on the windshield and
wiper blades.
Select on the option control screen.
The windshield wiper de-icer will automa tically turn off after approximately 15
minutes
■Pollen removal mode
Pollen is removed from the air and the ai r flows to the upper part of the body.
Select on the option control screen. Usually the system will turn off automatically.
In order to prevent the windshield from fo gging up when the outside air is cold, the
dehumidification function may operate.
The pollens are filtered out even if the pollen removal mode is turned off.

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5-2. Using the air conditioning system and defogger
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Interior features
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■To prevent the windshield from fogging up
●Do not use during cool air operation in extremely humid weather. The d iffer-
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 pilla rs when the windshield wiper de-icer is on.
■nanoe generator (if equipped)
Do not disassemble or repair the generator because it contains high voltage parts.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer if the generator needs repair.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid sys-
tem is off.
■To prevent damage to the nanoe  (if equipped)
Do not insert anything into the driver’s side vent, attach a nything to it, or use sprays
around the driver’s side vent. These things may cause the generator not to work prop-
erly.
●Do not place anything on the instrument
panel which may cover the air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

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5-5. Using the other interior features
Interior features
GS450h_300h_OM_OM30F92E_(EE)
Other interior features
To set the visor in the forward posi-
tion, flip it down.
To set the visor in the side position,
flip down, unhook, and swing it to the
side.
To use the side extender, place the
visor in the side position, then slide it
backward.
Slide the cover to open. The light turns on when the cover is
opened.
Sun visors
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Vanity mirrors
NOTICE
To prevent 12-volt battery discharge, do not leave the vanity lights on for extended peri-
ods while the hybrid system is off.