Buick 2000 LeSabre Owner's Manual page 96

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Rainsense 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 that is on the windshield.
The Rainsense system can be activated by turning the
wiper control band to one of the five sensitivity settings
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 setting.
An initial wipe occurs when you turn the ignition on as a
reminder that Rainsense is active.
The Rainsense 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 Rainsense function.
NOTICE:
The wipers must be turned off when going
through a car wash to avoid damage.
It is important to note that the Rainsense delay wiping
feature can be overridden at any time by manually
changing the wiper control to LO or HI speed.
NOTICE:
Do not place stickers or other items on the
exterior glass surface directly in front of the
rainsensor. Doing this could cause the rainsensor
to malfunction.
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