Page 137 of 478

Black plate (5,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Instruments and Controls 5-5
Windshield Wiper/Washer
The windshield wiper/washer lever
is located on the left side of the
steering column.
Turn the band with the wiper symbol
to control the windshield wipers.
8(Mist):Single wipe, turn the
band to
8and then release.
Several wipes, hold the band
on
8longer.
9(Off): Turns the wipers off.
6(Adjustable Interval Wipes):
Turn the band up for more frequent
wipes or down for less frequent
wipes.
1 : Slow wipes.
2 : Fast wipes.
Clear ice and snow from the wiper
blades before using them. If 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. Windshield WasherJ(Washer Fluid):
Press the
button at the end of the turn signal/
lane change lever, to spray washer
fluid on the windshield. The wipers
clear the windshield and either
stop or return to the preset speed.
The ignition key must be in
ACC/ACCESSORY or ON/RUN
for this to work. See Washer
Fluid on page 10‑23.
{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.
WASHER FLUID LOW ADD
FLUID is displayed on the Driver
Information Center (DIC) when the
washer fluid is low. See Washer
Fluid Messages on page 5‑46.
Page 357 of 478

Black plate (29,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Vehicle Care 10-29
.To check the P (Park)
mechanism's holding ability:
With the engine running, shift
to P (Park). Then release the
parking brake followed by the
regular brake.
Contact your dealer if service is
required.
Wiper Blade Replacement
Windshield wiper blades should
be inspected for wear or cracking.
See Scheduled Maintenance on
page 11‑2 for more information.
Replacement blades come in
different types and are removed in
different ways. To replace the wiper
blade assembly:
1. Pull the windshield wiper arm away from the windshield.
2. Press the button in the middle ofthe wiper arm connector and pull
the wiper blade away from the
arm connector.
3. Install the new wiper blade and make sure the wiper blade locks
into place.
For the proper size and type see
Maintenance Replacement Parts on
page 11‑9.
Backglass Wiper Blade
To replace the backglass wiper
blade:
1. Pull the wiper blade assembly away from the backglass.
The backglass wiper blade will
not lock in a vertical position
so care should be used when
pulling it away from the vehicle.
2. Rotate the wiper blade assembly, hold the wiper arm in
position, and push the blade
away from the wiper arm.
3. Replace the wiper blade.
4. Return the wiper arm and blade assembly to the rest position on
the glass.
Windshield Replacement
If the vehicle is equipped with the
Head‐Up display (HUD) system
and the windshield needs to be
replaced, get one that is designed
for HUD or the HUD image may
look out of focus.
Page 421 of 478

Black plate (93,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Vehicle Care 10-93
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
Page 437 of 478
Black plate (9,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Service and Maintenance 11-9
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 15278634 A3083C
Engine Oil Filter 89017525 PF63
Passenger Compartment Air Filter Element 20958479 CF179C
Spark Plugs 12611882 41-107
Wiper Blades
Front Driver –62.5 cm (24.6 in) 15254805 —
Front Passenger –53.0 cm (20.8 in) 15254804 —
Rear –30.0 cm (11.6 in) 15276259 —