2006 Lexus GS300 engine

SWITCHES
45
G12002
The automatic light control sensor is on top center of the
instrument panel.
Do not place anything on the instrument panel, and/or do not
affix anything on the windshield to block this sensor.
When the headlights come on, the lights automatically turn off
about 30 seconds after any of the doors is opened and closed
with the engine switch off.* To turn them on again, select the
engine switch in “IG−ON” mode, or turn the headlight switch off
and then twist the knob until the first or second clickstop.
If you are going to park for over one week, make sure the
headlight switch is off.
When the headlight switch is on with all the doors locked and
the trunk closed, pushing the ”LOCK” button on the electronic
key turns off the headlights.
NOTE:
*The time before turning off the lights can be changed.
Ask your Lexus dealer for details.Daytime Running Light System
The headlights turn on at reduced intensity when the parking
brake is released with the engine started, even with the light
switch in the ”OFF” position. They will not go off until the engine
switch is turned off.
To turn on the other exterior lights and instrument panel lights,
twist the knob to the first clickstop.
Twist the knob to the second clickstop to turn on the headlights
to full intensity for driving at night.
When setting the knob to the third clickstop (”AUTO”), the
headlights will automatically adjust to full intensity and/or turn
on the other lights depending on the darkness of the
surroundings. Likewise, as the surroundings become brighter,
the headlights will turn to reduced intensity, ultimately turning
off the other lights.
NOTICE
To prevent the battery from being discharged, do not
leave the lights on longer than necessary when the
engine is not running.

SWITCHES
48
G12005
For signaling turns, move the lever up or down in the
conventional manner.
The engine switch must be selected in “IG−ON” mode.
The turn signal is self−cancelling after a turn, but after a lane
change, you may have to cancel it by hand. You can also signal
a lane change by moving the turn signal lever partway and
holding it there.
If the green light in the instrument cluster flashes faster than
normal, it indicates that the front or rear turn signal bulb has
burned out. If this indicator light does not come on, the fuse
or the indicator light itself has probably failed.
FOG LIGHT SWITCH
G12006
To turn on the fog lights, twist the band of the headlight
lever to the fog light mark. They will come on only when
the headlights are on low beam.
When the fog lights are on, the indicator lights up in the
instrument cluster.

SWITCHES
49
WINDSHIELD WIPER AND WASHER
SWITCHES
Variable intermittent wipers
G12007

1
Interval adjuster 2
Washer on
To turn the wipers on, move the lever down until you reach
the desired speed setting.
The engine switch must be selected in “IG−ON” mode.
There are 3 settings:
”INT” position: Intermittent operation
”LO” position: Low speed operation
”HI” position: High speed operation
Twist the interval adjuster upward to increase the wiping
time interval between sweeps, and downward to decrease
it.The wiper lever must be in the ”INT” position.
The time interval between sweeps is shortened when the
vehicle speed increases. When the vehicle speed reaches
more than about 20 km/h (12 mph) with the interval adjuster
twisted down to the lowest position, the time interval becomes
the shortest 1.5 seconds.
If you stop the vehicle with the wiper switch in the “LO” position,
the wiper speed automatically changes from low speed to
intermittent operation speed.* This function does not work with
the interval adjuster twisted down to the lowest position.
NOTE:
* This feature can be deactivated.
Ask your Lexus dealer for details.
For mist wiper operations (a single wipe), pull the lever up
and release it.
To make the washer squirt, push the lever toward you and
release it.
If the wiper lever is in the “OFF” position, the wipers will
automatically make 3 wipes and then a single wipe later to
sweep the windshield completely.* The interval between the
3 wipes and the last wipe will depend on the vehicle speed.
The last sweep does not happen if the vehicle speed exceeds
about 170 km/h (106 mph).
NOTE:
*This function can be changed as follows:
The time before the last single wipe can be set for
about 3 seconds.
The last single wipe can be deactivated.
Ask your Lexus dealer for details.

SWITCHES
50The warning message “LOW WASHER FLUID” is displayed in
the multi−information display when the fluid level in the tank
becomes very low. For information on adding washer fluid, see
“Adding washer fluid” on page 579.
In cold weather, warm the windshield with the defroster before
using the washer. This will help prevent icing, which could
block your vision.
NOTICE
Do not operate the wipers if the windshield is dry. It may
scratch the glass.
Rain−sensing windshield wipers
G12008

1
Automatic control adjuster 2
Washer on
To turn the wipers on, move the lever down until you reach
the desired speed setting.
The engine switch must be selected in “IG−ON” mode.
There are 3 settings:
“AUTO” position: Automatic operation
“LO” position: Low speed operation
“HI” position: High speed operation

SWITCHES
51 Automatic operation*
The wiper speed is determined by the vehicle speed and
the amount of raindrops and sunlight detected by the
automatic wiper control sensor.
Twist the automatic control adjuster in the “–” direction to
lower the sensitivity, and the “+” direction to boost the
sensitivity.
G12009
The sensor is on the inside of the windshield as shown above.
NOTE:
*Automatic operation can be changed to an intermittent
operation.
Ask your Lexus dealer for details.With the engine switch turned off, if the windshield sensor is
touched by reason of cleaning the windshield or for any other
reason, either of the following operations may cause automatic
wiper activation.
Turning the engine switch on with the wiper lever in the
“AUTO” position.
Turning the engine switch on and move the wiper lever
down in the “AUTO” position.
Even with the wiper lever in the “AUTO” position, the system
will switch to intermittent operations if the system malfunctions.
The system will turn off if the windshield gets extremely hot (at
more than 80C or 176F) or cold (at less than –10C or 14F).
When the engine switch is turned off with the wiper lever in the
“AUTO” position, and then the engine switch is turned on
again, the automatic operation may not work even if raindrops
are on the windshield.
In this case, move the lever to another position and return it to
the “AUTO” position again.

SWITCHES
52
CAUTION
Be careful not to get your fingers caught between the
wipers and windshield.
When the wiper lever is in the “AUTO” position with the
engine switch on, the wipers could operate
automatically in the following cases:
If you touch the upper center of the windshield
adjacent to the sensor.
If you wipe the upper center of the windshield
(adjacent to which the sensor is located) with a towel.
If the windshield vibrates.
If you touch the sensor.
For mist wiper operations (a single wipe), pull the lever up
and release it.
To make the washer squirt, pull the lever toward you and
release it.
If the wiper lever is in the “OFF” position, the wipers will
automatically make 3 wipes and then a single wipe later to
sweep the windshield completely.* The interval between the
3 wipes and the last wipe will depend on the vehicle speed.
The last sweep does not happen if the vehicle speed exceeds
about 170 km/h (106 mph).
NOTE:
*This function can be changed as follows:
The time before the last single wipe can be set for
about 3 seconds.
The last single wipe can be deactivated.
Ask your Lexus dealer for details.
The warning message “LOW WASHER FLUID” is displayed in
the multi−information display when the fluid level in the tank
becomes very low. For information on adding washer fluid, see
“Adding washer fluid” on page 579.
When the headlights are on and the washers are activated by
pushing the windshield washer switch, the headlight cleaner
operates once automatically.
In cold weather, warm the windshield with the defroster before
using the washer. This will help prevent icing, which could
block your vision.
The rear window and outside rear view mirror defogger
automatically turns on when you operate the wipers.

SWITCHES
55
HEADLIGHT CLEANER SWITCH
The headlight cleaner switch is located in the switch box.
G12010
Push the button to use the switch box. To spray fluid on
the headlights, push the switch with the headlights on.
The engine switch must be selected in “IG−ON” mode.
The warning message “LOW WASHER FLUID” is displayed in
the multi−information display when the fluid level in the tank
becomes very low. For information on adding washer fluid, see
“Adding washer fluid” on page 579.
After operation, be sure to close the switch box to its original
position.
CAUTION
To reduce the chance of injury in case of an accident or
a sudden stop, keep the switch box closed when not in
use while driving.
NOTICE
Do not turn the headlight cleaner on with the washer
fluid tank empty. It may cause the cleaner motor to
overheat.

SWITCHES
56
REAR WINDOW AND OUTSIDE
REAR VIEW MIRROR DEFOGGER
SWITCH
G12011
To turn the electric rear window and outside rear view
mirror defogger on, push the switch.
The engine switch must be selected in “IG−ON” mode.
The thin heater wires on the inside of the rear window and the
heater panels in the outside rear view mirrors will quickly clear
the surface. Keep your hands off the mirror faces when the
switch is on. An indicator light is on when the defogger is
operating.
The system will automatically shut off when the defogger has
operated about 15 minutes.
CAUTION
Since the mirror surfaces can get hot, do not touch them
when the switch is on.
If further defrosting or defogging is desired, simply actuate the
switch again. When the surface has cleared, push the switch
once again to turn the defogger off. Continuous use may cause
the battery to discharge, especially during stop−and−go
driving. The defogger is not designed to dry rain water or to
melt snow.
If the outside rear view mirrors are heavily coated with ice, use
a spray de−icer before operating the switch.
NOTICE
When cleaning the inside of the rear window, be
careful not to scratch or damage the heater wires or
connectors.
To prevent the battery from being discharged, turn
the switch off when the engine is not running.