Lexus is300 2021, Service Manual

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159
4-3. Operating the lights and wipers
4
Driving
Wiper intervals can be adjusted when
intermittent operation is selected.
5
Increases the intermittent wind-
shield wiper frequency
6 Decreases the intermittent wind-
shield wiper frequency
The intermittent windshield wiper operates
more frequently as vehicle speed becomes
higher.
7 Washer/wiper dual opera-
tion
Pulling the lever operates the wipers and
washer.
The wipers will automatically operate a
couple of times after the washer squirts.
Vehicles with headlight cleaners:
When the engine switch is in IGNITION
ON mode and the headlights are on, if the
lever is pulled, the headlight cleaners will
operate once. After this, the headlight
cleaners will operate every 5th time the
lever is pulled.
■ The windshield wiper and washer can be
operated when
The engine switch is in IGNITION ON
mode.
■
Dripping prevention wiper sweep
After performing a washing and wiping
operation several times, the wipers operate
one more time after a short delay to prevent
dripping.
However, this final wiper operation will not
be performed while driving.
■ Effects of vehicle speed on wiper opera-
tion (vehicles with rain-sensing wind-
shield wipers)
Vehicle speed affects the following even
when the wipers are not in AUTO mode.
● Intermittent wiper interval
● Wiper operation when the washer is
being used (delay until drip prevention
wiper sweep occurs)
With low speed windshield wiper operation
selected, wiper operation will be switched
from low speed to intermittent wiper opera-
tion only when the vehicle is stationary.
■
Raindrop sensor (vehicles with
rain-sensing 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.
or
No change
or
No change
Wiper lever oper-
ation
Wiper operation