Toyota 2012 Avalon Owner's Manual page 166

2-3. Operating the lights and windshield wipers
Windshield wipers and washer (Type A)
■
Intermittent wiper with interval adjuster (if equipped)
Wiper intervals can be adjusted for intermittent operation (when
is selected).
184
Increases the intermittent
windshield wiper frequency
Decreases the intermittent
windshield wiper frequency
I n f o r ma t i o n P r o v i d e d b y :
Intermittent wiper
operation
Low speed wiper
operation
High speed wiper
operation
Temporary operation