Lexus IS250 U Owner's Manual page 186

186
4-3. Operating the lights and wipers
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, the last sweep will not happen if the vehicle is traveling above 106 mph (170
km/h).
Effects of vehicle speed on wiper operation (vehicles with rain-sensing windshield wip-
■
ers)
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 operation 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 oper-
ate 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 185°F (85°C) or higher, or -22°F (-30°C)
●
or lower, automatic operation may not occur. In this case, operate the wipers in any
mode other than AUTO mode.
When the windshield wipers are in temporary operation (vehicles with rain-sensing
■
windshield wipers)
AUTO mode cannot be activated even if
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.
Operation guide display (vehicles with rain-sensing windshield wipers only)
■
When the windshield wiper switch is operated to activate AUTO mode or when the rain-
sensing level is adjusted, the current status is displayed on the meters for a few seconds.
(P. 89)
IS350/250_U (OM53C50U)
is pressed.