Lexus 2011 RX350, Owner'S Manual, Page: 272 / 821

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2-3. Operating the lights and windshield wipers
n
Raindrop sensor (vehicles with rain-sensing windshield wipers)
l
If the wiper switch is turned to the position while the “ENGINE START
STOP” switch is in IGNITION ON mode, the wipers will operate once to show
that “AUTO” mode is activated.
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When the sensor sensitivity ring is turned toward high while in “AUTO” mode,
the wipers will operate once to indicate that the sensor sensitivity is enhanced.
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If the temperature of the raindrop sensor is 194
°
F (90
°
C) or higher, or 5
°
F
(-15
°
C) or lower, automatic operation may not occur. In this case, operate
the wipers in any mode other than “AUTO”.
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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.
CAUTION
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Caution regarding the use of windshield wipers in “AUTO” mode (vehicles with
rain-sensing windshield wipers)
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.
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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.