Toyota Avalon 2010 Quick Reference Manual page 185

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Raindrop detection windshield wipers (if equipped)
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.
AVALON_U (OM41437U)
2-3. Operating the lights and windshield wipers
Wash/wipe operation
Wipers will automatically oper-
ate a couple of times after the
washer squirts.
Raindrop detection wiper
operation
Low speed wiper operation
High speed wiper operation
Temporary operation
I n f o r ma t i o n P r o v i d e d b y :
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