2010 Lexus GS450h wipers

175
2-3. Operating the lights and windshield wipers
2
When driving
GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Windshield wipers and washer
Intermittent wiper with interval adjuster
Wiper intervals can be adjusted for intermittent operation (when
is selected).
Off
Intermittent wind-
shield wiper operation
Low speed windshield
wiper operation
High speed wind-
shield wiper operation
Temporary operation
Increases the intermittent
windshield wiper frequency
Decreases the intermittent
windshield wiper frequency

176
2-3. Operating the lights and windshield wipers
GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Washer/wiper dual operation
Wipers will automatically oper-
ate a couple of times after the
washer squirts.
Rain-sensing windshield wipers
With selected, the wipers will operate automatically when the
sensor detects falling rain. The system automatically adjusts wiper
timing in accordance with rain volume and vehicle speed.
Off
Rain-sensing wiper
operation
Low speed wiper
operation
High speed wiper
operation
Temporary operation

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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
Sensor sensitivity (high)
Sensor sensitivity (low)
Washer/wiper dual operation
Wipers will automatically oper-
ate a couple of times after the
washer squirts.

178
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.

179
2-3. Operating the lights and windshield wipers
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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.

191
2-4. Using other driving systems
2
When driving
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■Dynamic radar cruise coontrol can be set when
●The shift lever is in D. (Recommended) 
Dynamic radar cruise control can also be set when the shift lever is in S and
range “4”, “5” or “6” has been selected.
●Vehicle speed is above approximately 30 mph (50 km/h).
■Switching modes
The mode cannot be switched to constant speed control mode if vehicle-to-vehicle
distance control mode has been used. The mode also cannot be switched from
constant speed control to vehicle-to-vehicle distance control mode. Turn the sys-
tem off by pressing the “ON-OFF” button, and turn it on again.
■Accelerating
The vehicle can accelerate normally. After acceleration, the set speed resumes.
However, during vehicle-to-vehicle distance control mode, the vehicle speed may
decrease below the set speed in order to maintain the distance to the vehicle
ahead.
■Automatic cancelation of vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the follow-
ing situations:
●Actual vehicle speed falls below approximately 25 mph (40 km/h).
●Enhanced VSC is activated.
●The sensor cannot operate correctly because it is covered in some way.
●The windshield wipers are operating at high speed.
●The driving mode select switch is set to snow mode.
If vehicle-to-vehicle distance control driving is automatically canceled for any other
reason, there may be a malfunction in the system. Contact your Lexus dealer.

235
2-5. Driving information
2
When driving
GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Shifting the windshield wiper position
You can shift the wipers to the rest position manually. (In heavy snow or
icy condition etc.)
Grip the wiper arm firmly when shifting the wiper position.
To rest position
Raise the wiper in line with the
windshield.
You can stand the wipers up for the
rest position.
*: More than 3.9 in. (10 cm)
To retract position
Lower the wipers by pressing on
the wiper arm.