Page 19 of 462

Black plate (13,1)Buick LaCrosse Owner Manual - 2011
In Brief 1-13
The current status of the AUTO
system is displayed in the Driver
Information Center (DIC) uplevel
display. SeeDriver Information
Center (DIC) on page 5‑25.
;: Turns on the parking lamps,
together with the sidemarker lamps,
taillamps, license plate lamps, and
instrument panel lights.
2: Turns on the headlamps,
together with the parking lamps,
sidemarker lamps, taillamps, license
plate lamps, and instrument panel
lights.
For more information, see:
.Exterior Lamp Controls on
page 6‑1.
.Daytime Running Lamps (DRL)
on page 6‑3.
.Fog Lamps on page 6‑5.
Windshield Wiper/Washer
The windshield wiper lever
is on the side of the steering
column. With the ignition in
ACC/ACCESSORY or ON/RUN,
move the windshield wiper lever
to select the wiper speed.
2: Fast wipes.
1: Slow wipes.
&:Turn the band up for more
frequent wipes or down for less
frequent wipes.
9: Turns the windshield
wipers off.
3: Briefly move the wiper lever
down for a single wipe or hold down
for several wipes.
Windshield Washer
Pull the windshield wiper lever to
spray windshield washer fluid and
activate the wipers.
See Windshield Wiper/Washer on
page 5‑3.
Page 126 of 462

Black plate (4,1)Buick LaCrosse Owner Manual - 2011
5-4 Instruments and Controls
&(Adjustable Interval Wipes):
Turn the band up for more frequent
wipes or down for less frequent
wipes.
9(Off): Use to turn the windshield
wipers off.
3(Mist): For a single wipe,
briefly move the wiper lever down.
For several wipes, hold the wiper
lever down.
Clear ice and snow from the
wiper blades before using them.
If they are frozen to the windshield,
carefully loosen or thaw them. Damaged wiper blades should
be replaced. See
Wiper Blade
Replacement on page 10‑29.
Heavy snow or ice can overload the
wipers. A circuit breaker stops them
until the motor cools.
Wipe Parking
If the ignition is turned to
LOCK/OFF while the wipers
are on 1, 2, or
&, they will
immediately stop.
If the windshield wiper lever is
then moved to OFF before the
driver door is opened, or within
10 minutes, the wipers will restart
and move to the base of the
windshield.
If the ignition is turned to
LOCK/OFF during a windshield
wash, the wipers will stop when
they reach the base of the
windshield.
Windshield Washer
Pull the windshield wiper lever
toward you to spray windshield
washer fluid and activate the wipers.
The wipers will continue until the
lever is released or the maximum
wash time is reached.
When the windshield wiper lever
is released, additional wipes may
occur depending on how long
the windshield washer had been
activated. See Washer Fluid on
page 10‑24 for information on
filling the windshield washer
fluid reservoir.
{WARNING
In freezing weather, do not use
the washer until the windshield
is warmed. Otherwise the
washer fluid can form ice on the
windshield, blocking your vision.
Page 350 of 462

Black plate (38,1)Buick LaCrosse Owner Manual - 2011
10-38 Vehicle Care
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed.
This greatly reduces the chance
of circuit overload and fire caused
by electrical problems.Fuses and circuit breakers protect
the following in the vehicle:
.Headlamp Wiring
.Windshield Wiper Motor
.Power Windows and Other
Power Accessories
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road
and a fuse needs to be replaced,
the same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have
the headlamp wiring checked right
away if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Page 351 of 462

Black plate (39,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-39
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using
the windshield wipers.
If the overload is caused by an
electrical problem and not snow
or ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces
the chance of damage caused
by electrical problems.To check a fuse, look at the
silver-colored band inside the fuse.
If the band is broken or melted,
replace the fuse. Be sure to replace
a bad fuse with a new one of the
identical size and rating.
Fuses of the same amperage
can be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
possible.
To identify and check fuses,
circuit breakers, and relays,
see
Engine Compartment Fuse
Block on page 10‑39, Instrument
Panel Fuse Block on page 10‑42,
and Rear Compartment Fuse Block
on page 10‑44.
Engine Compartment
Fuse Block
To remove the fuse block cover,
squeeze the three retaining clips
on the cover and lift it straight up.
Notice: Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.
Page 407 of 462

Black plate (95,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-95
Wheels and Trim—Aluminum
or Chrome
The vehicle may have either
aluminum or chrome-plated wheels.
Keep the wheels clean using a
soft, clean cloth with mild soap
and water. Rinse with clean water.
After rinsing thoroughly, dry with a
soft, clean towel. A wax may then
be applied.
Notice: Chrome wheels and
other chrome trim may be
damaged if the vehicle is not
washed after driving on roads
that have been sprayed with
magnesium, calcium or sodium
chloride. These chlorides are
used on roads for conditions
such as ice and dust. Always
wash the chrome with soap and
water after exposure.
Notice: Do not use strong soaps,
chemicals, abrasive polishes,
cleaners, brushes, or cleaners
that contain acid on aluminum or
chrome-plated wheels, because
the surface could be damaged. The repairs would not be covered
by the vehicle warranty. Use only
approved cleaners on aluminum
or chrome-plated wheels.
Notice:
Never drive a vehicle that
has aluminum or chrome-plated
wheels through an automatic car
wash that uses silicone carbide
tire cleaning brushes, as this
could cause damage. The repairs
would not be covered by the
vehicle warranty.
Notice: Driving the vehicle
through an automatic car wash
that has silicone carbide tire
cleaning brushes, could damage
the aluminum or chrome-plated
wheels. The repairs would not be
covered by the vehicle warranty.
Never drive a vehicle that has
aluminum or chrome-plated
wheels through an automatic
car wash that uses silicone
carbide tire cleaning brushes.
Windshield and Wiper Blades
Clean the outside of the windshield
with glass cleaner.
Clean the rubber blades using
a lint‐free cloth or paper towel
soaked with windshield washer
fluid or a mild detergent. Wash
the windshield thoroughly when
cleaning the blades. Bugs, road
grime, sap, and a buildup of vehicle
wash/wax treatments may cause
wiper streaking. Replace the wiper
blades if they are worn or damaged.
Wipers can be damaged by:
.Extreme dusty conditions
.Sand and salt
.Heat and sun
.Snow and ice, without proper
removal