2010 Lexus GS450h Using The Audio System / LEXUS 2010 GS450H OWNERS MANUAL (OM30C81U)

177
2-3. Operating the lights and windshield wipers
2
When driving
GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Sensor sensitivity (high)
Sensor sensitivity (low)
Washer/wiper dual operation
Wipers will automatically oper-
ate a couple of times after the
washer squirts.

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2-3. Operating the lights and windshield wipers
GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
■The windshield wiper and washer can be operated when
The “POWER” switch is in ON mode.
■Dripping prevention wiper sweep
After washing and wiping operation several times, the wipers operate one more
time after a short delay to prevent dripping.
However, the last sweep will not happen if the vehicle is traveling above 106 mph
(170 km/h).
■Effects of vehicle speed on wiper operation
Vehicle speed affects the following even when the wipers are not “AUTO” mode.
●Intermittent wiper interval ( mode)
●Wiper operation when the washer is being used (delay until drip prevention
wiper sweep occurs)
With selected, wiper operation will be switched from low speed to intermit-
tent wiper operation only when the vehicle is stationary.
■Rain drop sensor (vehicles equipped with rain-sensing windshield wipers)
●If the wiper switch is turned to the “AUTO” position while the “POWER” switch
is in ON mode, the wipers will operate once to show that “AUTO” mode is acti-
vated.
●If the temperature of the raindrop sensor is 167F (75C) or higher, or 14F
(-10C) or lower, automatic operation may not occur. In this case, operate the
wipers in any mode other than “AUTO”.
●The raindrop sensor judges the amount of
raindrops. 
An optical sensor is adopted. It may not
operate properly when sunlight from the
rising or setting of the sun intermittently
strikes the windshield, or if bugs etc. are
present on the windshield.

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2-3. Operating the lights and windshield wipers
2
When driving
GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
■Customization that can be configured at Lexus dealer
Settings (e.g. drip prevention function) can be changed. 
(Customizable features P. 6 1 9 )
CAUTION
■Caution regarding the use of windshield wipers in “AUTO” mode
The windshield wipers may operate unexpectedly if the sensor is touched or the
windshield is subject to vibration in “AUTO” mode. Take care that your fingers or
anything else do not become caught in the windshield wipers.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be caused if the lever is pulled toward you
and held continually.

180
2-3. Operating the lights and windshield wipers
GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Headlight cleaner switch
■The headlight cleaner can be operated when
The “POWER” switch is in ON mode and the headlight switch is turned ON.
NOTICE
■When the washer fluid tank is empty
Do not press the switch continually, as the washer fluid pump may overheat.
: If equipped
Washer fluid can be sprayed on the headlights.
Press the switch to clean the
headlights.

181
2
When driving
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
2-4. Using other driving systems
Cruise control
: If equipped
Use the cruise control to maintain a set speed without using the accelera-
tor.
Indicator
Cruise control switch
■Set the vehicle speed
Press the “ON-OFF” button to
activate the cruise control.
Press the button once more to
deactivate the cruise control.
Accelerate or decelerate to the
desired speed and press the
lever down to set the cruise
control speed.
STEP1
STEP2

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2-4. Using other driving systems
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■Cruise control can be set when
●The shift lever is in the D or “4”, “5”, or “6” range of S has been selected.
●Vehicle speed is above approximately 25 mph (40 km/h).
■Accelerating
The vehicle can be accelerated normally. After acceleration, the set speed resumes.
■Adjusting the speed setting
Increase speed
Decrease speed
Hold the lever until the desired
speed setting is obtained.
Fine adjustment of the set speed
can be made by lightly pressing
the lever up or down and releas-
ing it.
■Canceling and resuming regular acceleration
Cancel
Pull the lever towards you to
cancel cruise control.
The setting is also canceled
when the brake pedal is
depressed.
Resume
To resume cruise control and
return to the set speed, push the
lever up.

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2-4. Using other driving systems
2
When driving
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■Automatic cruise control cancelation
The set speed is automatically canceled in any of the following situations.
●Actual vehicle speed falls more than 10 mph (16 km/h) below the preset vehicle
speed
At this time, the memorized set speed is not retained.
●Actual vehicle speed is below 25 mph (40 km/h)
●Enhanced VSC is activated
■If the cruise control indicator light flashes
Press the “ON-OFF” button off once, and then reactivate the system. 
If the cruise control speed cannot be set or if the cruise control cancels immediately
after being activated, there may be a malfunction in the cruise control system. Have
the vehicle inspected by your Lexus dealer.
CAUTION
■To avoid operating the cruise control by mistake
Keep the “ON-OFF” button off when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in control of the vehicle being lost and could cause an accident
resulting in death or serious injury.
●In heavy traffic
●On roads with sharp bends
●On slippery roads, such as those covered with rain, ice or snow
●On steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.
●On winding roads
●When emergency towing

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2-4. Using other driving systems
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
Dynamic radar cruise control
: If equipped
Dynamic radar cruise control supplements conventional cruise control
with a vehicle-to-vehicle distance control. In vehicle-to-vehicle distance
control mode, the vehicle automatically accelerates or decelerates in
order to maintain a set following distance from vehicles ahead.
Indicator
Display
Set speed
Cruise control switch
Vehicle-to-vehicle distance
lever