Buick Lucerne 2007, Owner'S Manual

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Rainsense™ II Wipers
If your vehicle has this feature, the moisture sensor
is mounted on the interior of the windshield beside
the rearview mirror and is used to automatically
operate the wipers. This system operates by
monitoring the amount of moisture build-up on the
windshield. Wipes occur as needed to clear the
windshield depending on the driving conditions and
the sensitivity setting. In light rain or snow, fewer
wipes will occur. In heavy rain or snow, wipes will
occur more frequently. The system operates in the
delay mode. If the system is left on for long periods
of time, occasional wipes may occur without any
moisture on the windshield. This is normal and
indicates that the Rainsense™ system is active.
The Rainsense™ system is activated by turning
the wiper control band to one of the five sensitivity
levels within the delay area. The position closest
to off is the lowest sensitivity setting, level one.
This allows more rain or snow to collect on the
windshield between wipes. Turning the wiper band
away from you to higher sensitivity levels increases
the sensitivity of the system and frequency of
wipes. The highest sensitivity setting, level five is
closest to low. A single wipe will occur each time
you turn the wiper stalk to a higher sensitivity level
to indicate that the sensitivity level has been
increased.
Notice: Going through an automatic car wash
with the wipers on can damage them. Turn the
wipers off when going through an automatic
car wash.
The MIST and wash cycles operate as normal and
are not affected by the Rainsense™ function. The
system can be overridden at any time by manually
changing the wiper control to low or high speed.
Notice: Do not place stickers or other items
on the exterior glass surface directly in front of
the rain sensor. Doing this could cause the
rain sensor to malfunction.
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