Lexus IS F 2012 Owner's Manual page 169

2-3. Operating the lights and windshield wipers
Type B
Rain-sensing wiper operation
Low speed wiper operation
High speed wiper operation
Temporary operation
2
Washer/wiper dual operation
Wipers operate automatically.
(After operating several times,
the wipers operate one more
time after a short delay to pre-
vent dripping.)
169