Buick 2009 Lucerne - Manual (Page 151)

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
{ CAUTION:
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.
_
(Heated Washer Fluid): The heated windshield
washer fluid system, if the vehicle has this feature,
may be used to help clear ice, snow, tree sap, or bugs
from the windshield. Slide the control on the turn
signal/multifunction lever to this position and then
release, to activate the heated windshield washer fluid
system. This activation initiates four heated wash/wipe
cycles. The first heated wash/wipe cycle may take
up to 40 seconds to occur, depending on outside
temperature. After the first wash/wipe cycle, it may take
up to 20 seconds for each of the remaining cycles.
The heated windshield washer fluid system may
be turned off at any time by sliding the control on the
turn signal/multifunction lever to this position again.
When the heated windshield washer fluid system
is activated under certain outside temperature
conditions, steam may flow out of the washer nozzles
for a short period of time before washer fluid is sprayed.
This is a normal condition.
WASHER FLUID LOW ADD FLUID will be displayed on
the Driver Information Center (DIC) when the washer
fluid is low. See DIC Warnings and Messages on
page 3-60.
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