TOYOTA 2010 Yaris - Manual (Page 165)

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2-3. Operating the lights and wipers
Windshield wipers and washer
■ Intermittent wiper without interval adjuster
Intermittent windshield
wiper operation
Low speed windshield wiper
operation
High speed windshield
wiper operation
Temporary operation
Washer/wiper dual opera-
tion
Wipers will automatically oper-
ate a couple of times after the
washer squirts.