Lexus LS 460 2017 Manual page 302

302
4-3. Operating the lights and wipers
The windshield wiper and washer can be operated when
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The engine switch is in IGNITION ON mode.
Dripping prevention wiper sweep
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After washing and the wiper has operated 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 170 km/h
(106 mph).
Effects of vehicle speed on wiper operation
■
Even when the wipers are not in "AUTO" mode, vehicle speed affects the time until
the drip prevention wiper sweep occurs.
With low speed windshield wiper operation selected, wiper operation will be
switched from low speed to intermittent wiper operation only when the vehicle is sta-
tionary.
(However, when the sensor sensitivity is adjusted to the highest level, the mode can-
not be switched.)
Raindrop sensor
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The raindrop sensor judges the amount of
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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.
If the wiper is turned to "AUTO" mode while the engine switch is in IGNITION ON
●
mode, the wipers will operate once to show that "AUTO" mode is activated.
If the temperature of the raindrop sensor is 90C (194F) or higher, or -15C
●
(5F) or lower, automatic operation may not occur. In this case, operate the wip-
ers in any mode other than "AUTO" mode.
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.
Outside rear view mirror defogger activation linked to windshield wiper operation
■
The outside rear view mirror defoggers automatically turn on when you operate the
windshield wipers.
The outside rear view mirror defoggers automatically turn off approximately 15 min-
utes after the wipers stop.
For details about the outside rear view mirror defoggers: P. 445