Windshield Wipers And Washer - Toyota Prius+ Owner's Manual

2-3. Operating the lights and windshield wipers

Windshield wipers and washer

The wiper operation is selected by moving the lever as follows.
When "AUTO" is selected, the wipers will operate automatically
when the sensor detects falling rain. The system automatically
adjusts wiper timing in accordance with rain volume and vehicle
speed.
When "AUTO" is selected, the sensor sensitivity can be adjusted
as follows by turning the switch ring:
268
PRIUS +_OM_OM47821E_(EE)
Rain-sensing wiper opera-
tion
Low speed wiper operation
High speed wiper operation
Temporary operation