Lexus RX 450h 2010 Owner's Manual page 217

2-3. Operating the lights and windshield wipers
The windshield wipers and washer can be operated when
■
The "POWER" switch is in ON mode.
Effects of vehicle speed on wiper operation
■
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)
When low speed wiper operation is selected, wiper operation will be switched from
low speed to intermittent wiper operation only when the vehicle is stationary.
(However, when the sensor sensitivity is adjusted to the highest level, the mode can-
not be switched.)
Raindrop sensor (vehicles with rain-sensing windshield wipers)
■
216
Washer/wiper dual operation
The wipers will automatically
operate a couple of times after
the washer squirts. (After oper-
ating several times, the wipers
operate one more time after a
short delay to prevent dripping.)
If the headlights are on, the
headlight cleaners will operate
once.
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.