Oldsmobile 2001 Silhouette Owner's Manual page 143

Rear Window Washer/Wiper
Press the wiper symbol on the bottom of the button to
turn on the intermittent wiper. To turn off the wiper,
gently press the top of the switch.
The rear window
wiper switch is located
in the instrument
panel switchbank.
To wash and wipe the rear window, press in the washer
symbol on the top of the switch. Washer fluid will run
down the window as long as the switch is held in. When
the top of the switch is released, the wiper will continue
to cycle three more times. There is only one washer
fluid reservoir for the front and rear windshield wipers.
See "Windshield Washer Fluid" in the Index.
To wash the rear window when the rear wiper is
already on, press the top of the switch with the wash
symbol on it. Press in the bottom of the switch to
continue the intermittent wiper cycle after the washing
cycle is completed.
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