Lexus RX 450h 2014 Owner's Manual page 225

2-3. Operating the lights and windshield wipers
■
Rain-sensing windshield wipers
When
the sensor detects falling rain. The system automatically adjusts
wiper timing in accordance with rain volume and vehicle speed.
When
follows by turning the switch ring:
Type A
224
is selected, the wipers will operate automatically when
is selected, the sensor sensitivity can be adjusted as
Washer/wiper dual operation
The wipers will automatically
operate a couple of times after
the washer squirts.
If the headlights are on, the
headlight cleaners will operate
once.
Off
Rain-sensing
operation
Low speed
operation
High speed wiper
operation
Temporary operation
wiper
wiper