Buick 2010 Lucerne - Manual (Page 168)

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.
Windshield Washer
{ WARNING:
In freezing weather, do not use your washer until
the windshield is warmed. Otherwise the washer
fluid can form ice on the windshield, blocking your
vision.
J
(Washer Fluid): Press and release this paddle,
located at the top of the turn signal/multifunction lever,
to spray washer fluid on the windshield. The wipers will
clear the windshield and either stop or return to the
preset speed. For more washer cycles, press and hold
the paddle.
4-8