Toyota 2013 Avalon Hybrid Owner's Manual page 190

Rain-sensing 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.
1
Rain-sensing
wiper operation
2
Low speed wiper
operation
3
High speed wiper
operation
4
Temporary operation
5
Increases the sensitivity
6
Decreases the sensitivity
■
Washer/wiper dual operation
Wipers will automatically oper-
ate a couple of times after the
washer squirts.
AVALON_HV_U (OM41451U)
4-3. Operating the lights and wipers
209
4