Toyota AURIS User Manual page 213

Rain-sensing windshield wipers
With "AUTO" 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.
UK_AURIS_HV_EE
2-3. Operating the lights and wipers
Wash/wipe operation
Wipers operate automatically.
Rain-sensing windshield
wiper operation
Low speed windshield wiper
operation
High speed windshield
wiper operation
Temporary operation
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