2017 Lexus GS450h turn signal

2134-1. Before driving
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
■Tire information
●Increase the tire inflation pressure to 20.0 kPa (0.2 kgf/cm2 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 installingtrailer lights.
●Check that the turn signal lights and stoplights are operating correctly every time youhitch 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 ofthese 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.

231
4
4-2. Driving procedures
Driving
GS450h_300h_OM_OM30F92E_(EE)
Turn signal lever
The lever will return to its original position immediately after operation.
Right turn
Lane change to the right (move the
lever partway and release it)
The right hand signals will flash 3 times.
Lane change to the left (move the
lever partway and release it)
The left hand signals will flash 3 times.
Left turn
■If the turn signals do not stop flashing af ter turning left or right, or if you want
to stop them flashing
Operate the lever in the opposite direction to either position or .
If you move the lever to either position or , the selected turn signals will
flash.
■Turn signals can be operated when
The power switch is in ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
■If the turn signals stop flashing before a lane change has been performed
Operate the lever again.
Operating instructions
1
2
3
4
23
14

2444-3. Operating the lights and wipers
GS450h_300h_OM_OM30F92E_(EE)
■Conditions in which the light distribution control of the headlights changes automati-
cally
●When all of the following conditions are met, the high beams will be turned on automat- ically and the system will operate:
• The vehicle speed is approximately 60 km/h (37 mph) or more.*
*: The area in the direction that the vehicl e is turning will be illuminated more brightly
than other areas while driving on a curve.
●When all of the following conditions are met, the variable high beams will turn on and the distance that the low be ams are projected will be adjusted automatically, depending
on the location of vehicles ahead:
• The vehicle speed is approximately 60 km/h (37 mph) or more. • The area ahead of the vehicle is dark.
• There are vehicles ahead with headlights or tail lights turned on.
●If any of the following conditions is met, the high beams or variable high beams will be
changed to the low beams automatically:
• The vehicle speed is below approximately 60 km/h (37 mph). • The area ahead of the vehicle is not dark.
• There are many vehicles ahead. • Vehicles ahead are moving quickly and the high beams may blind the drivers of theother vehicles.
■Camera sensor detection information
●The high beams may not be automatically changed to the variable high beams in thefollowing situations:
• When vehicles ahead suddenly appear from a curve • When the vehicle is cut in front of by another vehicle• When vehicles ahead are hidden from sight due to repeated curves, road dividers or
roadside trees • When vehicles ahead appear from the faraway lane on wide road• When vehicles ahead have no lights
●The high beams may be changed to the variable high beams if a vehicle ahead that isusing fog lights without its headlights turned on is detected.
●House lights, street lights, traffic signals, and illuminated billboards or signs may cause the high beams to change to the variable high beams, cause the high beams not tochange to the variable high beams, or change the area that is not illuminated.
●The following factors may affect the amount of time taken to turn the high beam on or off, or the speed by which the areas not illuminated change:
• The brightness of headlights, fog light s, and tail lights of vehicles ahead
• The movement and direction of vehicles ahead • When a vehicle ahead only has operational lights on one side
• When a vehicle ahead is a two-wheeled vehicle • The condition of the road (gradient, curve, condition of the road surface etc.)• The number of passengers and amount of luggage
●The light distribution control of the headlights may change unexpectedly.
●Bicycles or similar objects may not be detected.

2484-3. Operating the lights and wipers
GS450h_300h_OM_OM30F92E_(EE)
■High beam automatic turning on or off conditions
●When all of the following conditions are fulfilled, the high beam will be automatically turned on (after approximately 1 second):
• Vehicle speed is above approximately 40 km/h (25 mph).
• The area ahead of the vehicle is dark. • There are no vehicles ahead with headlights or tail lights turned on.• There are few streetlights on the road ahead.
●If any of the following conditions are fulfille d, the high beam will be automatically turned off:
• Vehicle speed drops below appr oximately 30 km/h (19 mph). • The area ahead of the vehicle is not dark.• Vehicles ahead have headlights or tail lights turned on.
• There are many streetlights on the road ahead.
■Camera sensor detection information
●The high beam may not be automatically turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve • When the vehicle is cut in front of by another vehicle• When vehicles ahead are hidden from sight due to repeated curves, road dividers or
roadside trees • When vehicles ahead appear from the faraway lane on wide road• When vehicles ahead have no lights
●The high beam may be turned off if a vehicles ahead that is using fog lights without usingthe headlights is detected.
●House lights, street lights, traffic signals, and illuminated billboards or signs may cause the high beam to switch to the low beams, or the low beams to remain on.
●The following factors may affect the amount of time taken to turn the high beam on or
off:
• The brightness of headlights, fog light s, and tail lights of vehicles ahead • The movement and direction of vehicles ahead
• When vehicle ahead only has operational lights on one side • When vehicle ahead is a two-wheeled vehicle• The condition of the road (gradient, curve, condition of the road surface etc.)
• The number of passengers and amount of luggage
●The high beam may be turned on or off when the driver does not expect it.
●Bicycles or similar objects may not be detected.

2874-5. Using the driving support systems
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
Lane departure alert function display
Displayed when the multi-information display is switched to the driving assist
system information screen.
■Operation conditions of each function
●Lane departure alert function
This function operates when all of the following conditions are met.
• LKA is turned on. • Vehicle speed is approximately 50 km/h (32 mph) or more.• System recognizes white (yellow) lines.
• Width of traffic lane is approximately 3 m (9.8 ft.) or more. • Turn signal lever is not operated.• Vehicle is driven on a straight road or around a gentle curve with a radius of more
than approximately 150 m (492 ft.). • No system malfunctions are detected. ( P. 290)
●Steering assist function
This function operates when all of the follo wing conditions are met in addition to the operation conditions for the la ne departure alert function.
• Setting for “Steering Assist” in of the multi-information display is set to “On”.
( P. 111) • Vehicle is not accelerated or decelerated by a fixed amount or more.• Steering wheel is not operated with a steering force level suitable for changing
lanes. • ABS, VSC, TRC and PCS (Pre-Crash Safety system) are not operating.
• TRC or VSC is not turned off. • Except for Israel: Hands off steering wheel alert is not displayed. ( P. 289)
3
Inside of displayed white lines is
white
Inside of displayed white lines is
black
Indicates that the system is recognizing
white (yellow) lines. When the vehicle
departs from its lane, the white line dis-
played on the side the vehicle departs
from flashes orange.
Indicates that the system is not able to
recognize white (yellow) lines or is
temporarily canceled.

2884-5. Using the driving support systems
GS450h_300h_OM_OM30F92E_(EE)
●Vehicle sway warning
This function operates when all of the following conditions are met.
• Setting for “Sway Warning” in of the multi-information display is set to “On”.
( P. 111)
• Vehicle speed is approximately 50 km/h (32 mph) or more. • Width of traffic lane is approximately 3 m (9.8 ft.) or more.• No system malfunctions are detected. ( P. 290)
●Lane centering function
This function operates when all of the following conditions are met.
• LKA is turned on. • Setting for “Steering Assist” and “Lane Center” in of the multi-information display are set to “On”. ( P. 111)
• System recognizes white (yellow) lines. • Dynamic radar cruise control with full-speed range is operating.• Width of traffic lane is approximat ely 2.5 to 4.1 m (8.2 to 13.5 ft.).
• Turn signal lever is not operated. • Vehicle is driven on a straight road or around a gentle curve with a radius of morethan approximately 200 m (656 ft.).
• No system malfunctions are detected. ( P. 290) • Vehicle does not accelerate or dece lerate by a fixed amount or more. • Steering wheel is not operated with a steering force level suitable for changing
lanes. • ABS, VSC, TRC and PCS (Pre-Crash Safety system) are not operating. • TRC or VSC is not turned off.
• Except for Israel: Hands off steering wheel alert is not displayed. ( P. 289) • Steering assist function is not operating.
■Temporary cancellation of functions
When operation conditions are no longer met, a function may be temporarily canceled. However, when the operation conditions are met again, operation of the function is auto-
matically restored. ( P. 287)
■Steering assist function/lane centering function
Depending on the vehicle speed, lane departure situation, road conditions, etc., the
driver may not feel the function is operating or the function may not operate at all.
■Lane departure alert function
The warning buzzer may be difficult to hear due to external noise, audio playback, etc.
Also, it may be difficult to feel steering wheel vibrations due to the road conditions, etc.

2944-5. Using the driving support systems
GS450h_300h_OM_OM30F92E_(EE)
*1: If the turn signal indicator is not operated when changing lanes, the mark does not dis-
play.
*2:On some models
In the following situations, the RSA system alerts the driver using a warning dis-
play.
●When the vehicle speed exceeds the speed warning threshold applied to the
speed limit of the sign displayed on the multi-information display, the sign
color becomes inverted.
●If it is detected that your vehicle is overtaking when a no overtaking sign is dis-
played on the multi-information display, the sign flashes.
●On some models: When the RSA system recognizes a no-entry sign and
detects that the vehicle has entered a no-entry area based on the map infor-
mation of the navigation system, the no-entry sign flashes.
Depending on the situation, traffic environment (traffic direction, speed, unit)
may be detected incorrectly and a warning display may not operate properly.
■Automatic turn-off of RSA sign display
One or more signs automatically turn off in the following situations.
●A new sign is not recognized for a certain distance.
●The road changes due to a left or right turn, etc.
■Conditions in which the function may not operate or detect correctly
In the following situations, RSA does not op erate normally and may not recognize signs,
display the incorrect sign, etc. However, this does not indicate a malfunction.
●The camera sensor is misaligned due to a strong impact being applied to the sensor, etc.
●Dirt, snow, stickers, etc. are on the windshield near the camera sensor.
●In inclement weather such as heavy rain, fog, snow or sand storms
●Light from an oncoming vehicle, the sun, etc. enters the camera sensor.
●The sign is dirty, faded, tilted or bent, and if an electronic sign, the contrast is poor.
●All or part of the sign is hidden by the leaves of a tree, a pole, etc.
●The sign is only visible to the camera sensor for a short amount of time.
●The driving scene (turning, lane change, etc.) is judged incorrectly.
●Even if it is a sign not appropriate for the currently traveled lane, such a sign exists
directly after a freeway branches, or in an adjacent lane just before merging.
●Stickers are attached to the rear of the preceding vehicle.
●A sign resembling a system comp atible sign is recognized.
●The vehicle is driven in a country with a different direction of traffic.
Warning display

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
1
2
3