Subaru 2008 Impreza Owner's Manual page 154

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Instruments and controls
! Wiper intermittent time control
When the wiper switch is in the "
position, turn the dial to adjust the operat-
ing interval of the wiper.
The operating interval can be adjusted
continuously from the shortest interval to
the longest.
Two click stop positions of the dial may
help you to aim at your desired interval.
The operating interval can be adjusted in
nine steps.
! Mist (for a single wipe)
"
For a single wipe of the wipers, pull the
lever toward you. The wipers operate until
you release the lever.
! Washer
To wash the windshield, push the washer
button at the end of the wiper control lever.
The washer fluid sprays until you release
the washer button. The wipers operate
while you push the button.