Buick 2000 Park Avenue Owner's Manual page 103

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Moisture Sensing Delay Windshield Wipers
(If Equipped)
The moisture sensor is mounted on the passenger's
interior side of the windshield behind the rearview
mirror and is used to automatically operate the
wipers by monitoring the amount of moisture on
the windshield.
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The moisture sensing system is activated by turning the
wiper control band to one of the five sensitivity levels
within the delay area. The delay position closest to
OFF/MIST is the lowest sensitivity setting. This allows
more water to collect on the windshield between wipes.
You can increase the sensitivity of the system and the
frequency of wipes by turning the wiper control band
away from you to the other delay settings. A single wipe
will occur each time you turn the wiper control band to a
higher sensitivity level.
An initial wipe will occur when you turn the ignition on
and the wiper switch is left in one of the sensitivity
settings, as a reminder that the rain sense feature is active.
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The moisture sensing wipers operate in a delay mode as
well as a continuous low or high speed, depending on the
amount of moisture on the windshield and the sensitivity
setting. The MIST and wash cycles operate as normal and
are not affected by the moisture
NOTICE:
Turn the wiper band to OFF to avoid wiper damage
when going through an automatic car wash.
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sensing function.