Lexus RX450H Manual page 268


Raindrop sensor

If the wiper switch is turned to the
switch is in ON mode, the wipers will operate once to show that AUTO
mode is activated.

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.

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 wipers in any mode other than AUTO.

If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the
windshield washer fluid reservoir.
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 etc. do not become caught in the windshield wipers.

Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes
warm. The fluid may freeze on the windshield and cause low visibility. This
may lead to an accident, resulting in death or serious injury.
RX450h_EE
2-3. Operating the lights and windshield wipers

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.
position while the "POWER"
2
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