high beam Lexus GS300h 2017 User Guide

245
4-3. Operating the lights and wipers
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
●In the situations shown below, the system may not be able to accurately detect sur-
rounding brightness levels. This may cause the low beams to remain on or the high
beams to cause problems for pedestrians, vehicles ahead or other parties. In these
cases, manually switch between the high and low beams.

2464-3. Operating the lights and wipers
GS450h_300h_OM_OM30F92E_(EE)
Automatic High Beam 
Push the lever away from you with
the headlight switch in the or
position.
Press the Automatic High Beam
switch.
The Automatic High Beam indicator will
come on when the headlights are turned
on automatically to indicate that the sys-
tem is active.
: If equipped
The Automatic High Beam uses an in-vehicle camera sensor to assess the
brightness of streetlights, the lights of vehicles ahead, etc., and automatically
turns the high beam on or off as necessary.
WARNING
■Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Al ways drive safely, taking care to observe
your surroundings and turning the high beam on or off manually if necessary.
■To prevent incorrect operation of the Automatic High Beam system
Do not overload the vehicle.
Activating the Automatic High Beam system
1
2

247
4-3. Operating the lights and wipers
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
■Switching to low beam
Pull the lever to the original position.
The Automatic High Beam indicator
will turn off.
Push the lever away from you to acti-
vate the Automatic High Beam sys-
tem again.
■Switching to high beam
Press the Automatic High Beam
switch.The Automatic High Beam indicator
will turn off and the high beam indi-
cator will turn on.
Press the switch to activate the Auto-
matic High Beam system again.
Turning the high beam on/off manually

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 fu lfilled, the high beam will be automatically
turned on (after approximately 1 second):

249
4-3. Operating the lights and wipers
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
●In the situations shown below, the system may not be able to accurately detect sur-
rounding brightness levels. This may cause the low beams to remain on or the high
beams to cause problems for pedestrians, vehicles ahead or other parties. In these
cases, manually switch between the high and low beams.

261
4
4-5. Using the driving support systems
Driving
GS450h_300h_OM_OM30F92E_(EE)
Lexus Safety System+
◆PCS (Pre-Crash Safety system) 
P. 270
◆LKA (Lane-Keeping Assist) P. 282
◆AHS (Adaptive High-beam System) 
 P. 241
◆Automatic High Beam 
 P. 246
◆RSA (Road Sign Assist) P. 291
◆Dynamic radar cruise control with full-speed range P. 296
: If equipped
The Lexus Safety System+ consists of the following drive assist systems and
contributes to a safe and comfortable driving experience:
WARNING
■Lexus Safety System+
The Lexus Safety System+ is designed to operate under the assumption that the driver
will drive safely, and is designed to help reduce the impact to the occupants and the
vehicle in the case of a collision or assist the driver in normal driving conditions.
As there is a limit to the degree of reco gnition accuracy and control performance that
this system can provide, do no t overly rely on this system. The driver is always responsi-
ble for paying attention to the vehicle’s surroundings and driving safely.

449
6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by any autho-
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer. ● Headlights
● Front position lights/daytime running lights
● Front fog lights
● Front turn signal lights (vehicles with triple-beam headlights)
● Side turn signal lights
● Stop/tail lights
● Stop lights
● Rear fog light
● Rear turn signal lights
● Back-up lights
● High mounted stoplight
● License plate lights
■LED Lights
The lights other than the front turn signal lig ht (vehicles with single-beam headlights) and
outer foot lights each consist of a number of LEDs. If any of the LEDs burn out, take your
vehicle to any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer to have the light replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact any authorized Lexus reta iler or Lexus authorized repairer, or any
reliable repairer for more information in the following situations:
●Large drops of water have built up on the inside of the lens.
●Water has built up inside the headlight.
■When replacing light bulbs P. 441

4887-2. Steps to take in an emergency
GS450h_300h_OM_OM30F92E_(EE)
(If equipped)
Indicates that the Automatic High Beam switch was
pressed while the low beams were onTurn the high beam headlights on before pressing
the Automatic High Beam switch.
(If equipped)
Indicates that the Adaptive High-beam System switch
was pressed while th e low beams were on
 Turn the high beam headlights on before pressing
the Adaptive High-beam System switch.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-crash braking and pre-
crash brake assist are stopped (The pre-crash warning
function will be operational) Turn the VSC on. ( P. 327)
(If equipped)
Indicates that the PCS (Pre-Crash Safety system) is tem-
porarily unavailable
A buzzer also sounds.
 When conditions improve, the system resumes
operation. If this item is displayed continuously, have
the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Warning messageDetails/Actions
(Flashes)

569
8
8-2. Customization
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)
■AHS (Adaptive High-beam System)*1
(  P. 241)
* 1
: If equipped
* 2
: Only high beam will be turned on or off.
FunctionDefault settingCustomized
setting
Adaptive High-beam Sys-
temOnOff *2——O
Clearance between a vehi-
cle ahead and the shaded
high beamsStandardNarrow——OWide
Vehicle speed at which the
brightness and illuminated
area adjustment of the high
beams changes modeApproximately
120 km/h
(75 mph) or more
Approximately 100 km/h
(63 mph) or more
——OApproximately
80 km/h
(50 mph) or more
Intensity adjustment of the
high beams when driving
around a curve (illuminates
the area in the direction
vehicle is turning more brightly)
OnOff——O
Projection distance adjust-
ment of the low beams
according to the distance to
a preceding vehicle
OnOff——O
123

582Alphabetical index
GS450h_300h_OM_OM30F92E_(EE)
Alphabetical index
A/C ............................................................ 346
Air conditioning filter........................ 433
Changing the rear seat settings.................................................353
Front automatic air
conditioning system ...................... 346
nanoe™ system ..................................356
Pollen removal mode ...................... 352
Rear air conditioning system ...... 358
S-FLOW mode.................................. 347
ABS (Anti-lock Brake System) ....... 324
Function .................................................. 324
Warning light .........................................461
Warning message.............................466
Adaptive Front-lighting System
(AFS) ..................................................... 239
Adaptive Variable Suspension
system (AVS) ...................................... 325
AFS (Adaptive Front-lighting
System) .................................................. 239
AHS (Adaptive High-beam
System) ................................................... 241
Air conditioning filter .......................... 433
Air conditioning system ..................... 346 Air conditioning filter........................ 433
Changing the rear seat settings.................................................353
Front automatic air conditioning system ...................... 346
nanoe™ system ..................................356
Pollen removal mode ...................... 352
Rear air conditioning system ...... 358
S-FLOW mode.................................. 347 Airbags ........................................................ 43
Airbag manual on-off system......... 54
Airbag operating conditions ...........49
Airbag precautions for
your child .............................................. 45
Airbag warning light ........................ 460
Correct driving posture.................... 36
Curtain shield airbag operating
conditions ..............................................49
Curtain shield airbag
precautions ........................................... 47
General airbag precautions ........... 45
Locations of airbags ............................43
Modification and disposal of
airbags.................................................... 48
Side airbag operating
conditions ..............................................49
Side airbag precautions .................... 45
Side and curtain shield airbags operating conditions ........................49
Side and curtain shield airbags precautions .......................................... 45
SRS airbags ..............................................43
Airbag manual on-off system ............. 54
Alarm .............................................................. 91 Alarm ............................................................ 91
Warning buzzer.....................460, 466
Anchor brackets ...................................... 66
Antennas (smart entry & start system) .........................................153
Anti-lock Brake System (ABS)....... 324 Function...................................................324
Warning light......................................... 461
Warning message ............................ 466
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