Page 273 of 1014
2674-2. Driving procedures
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Turn signal lever
The lever will return to its original position immediately after oper-
ation.
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 after 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.
Operating instructions
1
2
3
4
2
3
14
Page 274 of 1014
2684-2. Driving procedures
GS450h_300h_OM_OM30D53E_(EE)
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.
Customization
The number of times the turn signals flash during a lane change can be
changed.
(Customizable feature P. 942)
Page 290 of 1014

2804-3. Operating the lights and wipers
GS450h_300h_OM_OM30D53E_(EE)
The Automatic High Beam can be operated when
The power switch is in ON mode.
Camera sensor detection information
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
• When oncoming or preceding vehicles are hidden from sight due to
repeated curves, road dividers or roadside trees
• When oncoming vehicles appear from the faraway lane on wide road
• When oncoming or preceding vehicles have no lights
High beam may be turned off if an oncoming vehicle that is using fog lights
without using the headlights is detected.
House lights, street lights, red traffic signals, and illuminated billboards or
signs may cause the high beam to turn off.
The following factors may affect the amount of time taken to turn high
beam on or off:
• The brightness of headlights, fog lights, and tail lights of oncoming and
preceding vehicles
• The movement and direction of oncoming and preceding vehicles
• When a oncoming or preceding vehicle only has operational lights on
one side
• When a oncoming or preceding vehicle 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
High beam may be turned on or off when unexpected by the driver.
Page 354 of 1014

3434-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Temporary cancelation of the LKA system functions
If any of the following occurs, the LKA system functions will be temporarily
canceled. The functions will resume after the necessary operating conditions
have returned.
The steering wheel is turned as far as necessary to cause the vehicle to
change lanes.
When the system detects no-handed driving. (The lane keeping assist func-
tion will be temporarily canceled, but the lane departure warning function
will continue.)
The turn signal lever is operated.
The vehicle speed deviates from the operating range of the LKA system
functions. (The buzzer will beep twice when the lane keeping assist func-
tion is being canceled.)
When the lane lines cannot be recognized while driving. (The buzzer will
beep twice when the lane keeping assist function is being canceled.)
The wiper switch is set on high speed mode or is set on AUTO mode with
wipers operating at high speed. (The lane keeping assist function will be
temporarily canceled, but the lane departure warning function will con-
tinue.)
If the vehicle crosses a line for approximately half a minute or more. (The
lane keeping assist function will be temporarily canceled, but the lane
departure warning function will continue.)
When the lane departure warning function is activated.
The lane departure warning function will not operate again for a several
seconds after it has been activated, even if the vehicle leaves the lane again.
The lane departure warning
It may be difficult to feel the sensory warning depending on the road condi-
tions.
No-handed driving warning
If the steering wheel is not operated for approximately 15 seconds on a
straight road or approximately 5 seconds on a curve, the buzzer will beep
twice, indicators on the multi-information display will flash, and the lane
keeping assist function will be temporarily canceled. If you drive the vehicle
with your hands lightly touching the steering wheel, this may also be
detected as no-handed driving.
Page 398 of 1014

3874-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Guide lines are not dis-
playedThe trunk lid is open.
Close the trunk lid.
If this does not resolve
the symptom, have the
vehicle inspected by
any authorized Lexus
dealer or repairer, or
another duly qualified
and equipped profes-
sional.
“System is initializ-
ing.” is displayed
• The 12-volt battery
has been reinstalled.
• The steering wheel
has been moved
while the 12-volt bat-
tery was being rein-
stalled.
• 12-volt battery power
is low.
• The steering sensor
has been reinstalled.
• There is a malfunc-
tion in the signals
being output by the
steering sensor.
Stop the vehicle, and
turn the steering wheel
as far as it will go to
the left and right.
If this does not resolve
the symptom, have the
vehicle inspected by
any authorized Lexus
dealer or repairer, or
another duly qualified
and equipped profes-
sional.
• On the system initial-
ization screen, select
the “?” button to dis-
play the operating
procedure.
SymptomLikely causeSolution
Page 414 of 1014

4034-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Reactivation of the TRC system linked to vehicle speed
When only the TRC system is turned off, the TRC system will turn on when
vehicle speed increases. However, when both TRC and VSC systems are
turned off, the systems will not turn on even when vehicle speed increases.
Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result.
* Should this occur,
refrain from excessive steering input or stop the vehicle and turn the hybrid
system off. The EPS system should return to normal within 10 minutes.
*: If the LKA (Lane-Keeping Assist) system cannot operate in this case, a
warning message will be shown on the multi-information display.
Operating conditions of emergency brake signal
When the following three conditions are met, the emergency brake signal
will operate:
The emergency flashers are off.
Actual vehicle speed is over 55 km/h (35 mph).
The brake pedal is depressed in a manner that cause the system to judge
from the vehicle deceleration that this is a sudden braking operation.
Automatic system cancelation of emergency brake signal
The emergency brake signal will turn off in any of the following situations:
The emergency flashers are turned on.
The brake pedal is released.
The system judges from the vehicle deceleration that is not a sudden brak-
ing operation.
Page 430 of 1014

4194-5. Using the driving support system
4
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.
1
2
3
Page 552 of 1014

5325-3. Using the audio system
GS450h_300h_OM_OM30D53E_(EE)
Listening to stations of the same network
FM alternative frequency:The station among those of the same
network with strong reception is
selected. FM alternative frequency on/
off (P. 530)
Regional code change: The station among those of the same net-
work with strong reception and broad-
casting the same program is selected.
Regional code change on/off (P. 530)
FM Traffic announcement
The system automatically switches to traffic information when a
broadcast with a traffic information signal is received.
“TP” (Traffic program) will appear on the screen. The station returns to
the previous one when the traffic information ends.
FM Traffic announcement on/off (P. 530)
Selecting a channel
Press “<” or “>” on “CH•TRACK” button or select or
on the screen.
Selecting a service
Manual tuning
Turn the “TUNE/SCROLL” knob.
Service list
Select one of the displayed services on the service list screen.
Preset stations
Select the desired preset stations (1 - 6).
RDS (Radio Data System)
DAB (Digital Audio Broadcast)