GMC SIERRA 2011 Owner's Manual

Black plate (107,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-107
Rear Towing (Rear Wheels
Off the Ground)
Two‐Wheel‐Drive Vehicles
Use the following procedure to dolly
tow a two-wheel-drive vehicle from
the rear:
1. Attach the dolly to the towvehicle following the dolly
manufacturer's instructions.
2. Drive the rear wheels onto the dolly. 3. Firmly set the parking brake.
See Parking Brake on
page 9‑69.
4. Put the transmission in P (Park).
5. Secure the vehicle to the dolly following the manufacturer's
instructions.
6. Use an adequate clamping device designed for towing to
ensure that the front wheels are
locked into the straight position.
7. Turn the ignition to LOCK/OFF. Four‐Wheel‐Drive Vehicles
Use the following procedure to dolly
tow a four-wheel-drive vehicle from
the rear:
1. Attach the dolly to the tow
vehicle following the dolly
manufacturer's instructions.
2. Drive the rear wheels onto the dolly.
3. Firmly set the parking brake. See Parking Brake on
page 9‑69.
4. Put the transmission in P (Park).
5. Secure the vehicle to the dolly following the manufacturer's
instructions.

Black plate (108,1)GMC Sierra Owner Manual - 2011
10-108 Vehicle Care
6. Use an adequate clampingdevice designed for towing to
ensure that the front wheels are
locked into the straight position.
{WARNING
Shifting a four-wheel-drive
vehicle's transfer case into
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). The driver or others
could be injured. Make sure the
parking brake is firmly set before
the transfer case is shifted to
N (Neutral).
7. Shift the transfer case to N (Neutral). See “Shifting into
Neutral” underFour-Wheel Drive
on page 9‑54 for the proper
procedure to select the neutral
position for the vehicle.
8. Turn the ignition to LOCK/OFF.
After towing, see “Shifting Out of
Neutral” underFour-Wheel Drive on
page 9‑54.
Appearance Care
Exterior Care
Silicone grease on weatherstrips
will make them last longer, seal
better, and not stick or squeak.
Apply silicone grease with a clean
cloth. During very cold, damp
weather frequent application may
be required. See Recommended
Fluids and Lubricants on page 11‑8.
Washing the Vehicle
The best way to preserve the
vehicle's finish is to keep it clean
by washing it often.
Notice: Certain cleaners contain
chemicals that can damage the
emblems or nameplates on the
vehicle. Check the cleaning
product label. If it states that it
should not be used on plastic
parts, do not use it on the vehicle
or damage may occur and it
would not be covered by the
warranty. Do not wash the vehicle in direct
sunlight. Use a car washing soap.
Do not use cleaning agents that
are petroleum based or that contain
acid or abrasives, as they can
damage the paint, metal or plastic
on the vehicle. Approved cleaning
products can be obtained from your
dealer. Follow all manufacturers'
directions regarding correct
product usage, necessary safety
precautions and appropriate
disposal of any vehicle care
product.
Rinse the vehicle well, before
washing and after to remove all
cleaning agents completely. If they
are allowed to dry on the surface,
they could stain.
Dry the finish with a soft, clean
chamois or an all-cotton towel to
avoid surface scratches and water
spotting.

Black plate (109,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-109
High pressure car washes may
cause water to enter the vehicle.
Avoid using high pressure washes
closer than 30 cm (12 inches) to
the surface of the vehicle. Use of
power washers exceeding 8 274 kPa
(1,200 psi) can result in damage or
removal of paint and decals.
Cleaning Exterior
Lamps/Lenses
Use only lukewarm or cold water, a
soft cloth and a car washing soap
to clean exterior lamps and lenses.
Follow instructions under“Washing
the Vehicle”.
Finish Care
Occasional waxing or mild polishing
of the vehicle by hand may be
necessary to remove residue from
the paint finish. Approved cleaning
products can be obtained from your
dealer. If the vehicle has a basecoat/
clearcoat paint finish, the clearcoat
gives more depth and gloss to
the colored basecoat. Always
use waxes and polishes that are
non-abrasive and made for a
basecoat/clearcoat paint finish.
Notice:
Machine compounding
or aggressive polishing on a
basecoat/clearcoat paint finish
may damage it. Use only
non-abrasive waxes and polishes
that are made for a basecoat/
clearcoat paint finish on the
vehicle.
Foreign materials such as calcium
chloride and other salts, ice melting
agents, road oil and tar, tree sap,
bird droppings, chemicals from
industrial chimneys, etc., can
damage the vehicle's finish if they
remain on painted surfaces. Wash
the vehicle as soon as possible.
If necessary, use non-abrasive
cleaners that are marked safe for
painted surfaces to remove foreign
matter. Exterior painted surfaces are
subject to aging, weather and
chemical fallout that can take
their toll over a period of years.
To help keep the paint finish looking
new, keep the vehicle garaged or
covered whenever possible.
Protecting Exterior Bright Metal
Parts
Bright metal parts should be
cleaned regularly to keep their
luster. Washing with water is all that
is usually needed. However, chrome
polish may be used on chrome or
stainless steel trim, if necessary.
Use special care with aluminum
trim. To avoid damaging protective
trim, never use auto or chrome
polish, steam or caustic soap to
clean aluminum. A coating of
wax, rubbed to high polish, is
recommended for all bright metal
parts.

Black plate (110,1)GMC Sierra Owner Manual - 2011
10-110 Vehicle Care
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
Aluminum or Chrome-Plated
Wheels and Trim
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
vehicle's chrome with soap
and water after exposure. Notice:
Using strong soaps,
chemicals, abrasive polishes,
cleaners, brushes, or cleaners
that contain acid on aluminum
or chrome-plated wheels, could
damage the surface of the
wheel(s). The repairs would
not be covered by the vehicle
warranty. Use only approved
cleaners on aluminum or
chrome-plated wheels.
The surface of these wheels is
similar to the painted surface of the
vehicle. Do not use strong soaps,
chemicals, abrasive polishes,
abrasive cleaners, cleaners with
acid, or abrasive cleaning brushes
on them because they could
damage the surface. Do not use
chrome polish on aluminum wheels.
Notice: Using chrome polish on
aluminum wheels could damage
the wheels. The repairs would
not be covered by the vehicle
warranty. Use chrome polish
on chrome wheels only.

Black plate (111,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-111
Use chrome polish only on
chrome-plated wheels, but avoid
any painted surface of the wheel,
and buff off immediately after
application.
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.
Tires
To clean the tires, use a stiff brush
with tire cleaner.
Notice: Using petroleum-based
tire dressing products on the
vehicle may damage the paint
finish and/or tires. When applying
a tire dressing, always wipe off
any overspray from all painted
surfaces on the vehicle.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage
Any stone chips, fractures or deep
scratches in the finish should be
repaired right away. Bare metal will
corrode quickly and may develop
into major repair expense.
Minor chips and scratches can be
repaired with touch-up materials
available from your dealer. Larger
areas of finish damage can be
corrected in your dealer's body
and paint shop. Chemicals used for ice and snow
removal and dust control can collect
on the underbody. If these are not
removed, corrosion and rust can
develop on the underbody parts
such as fuel lines, frame, floor pan,
and exhaust system even though
they have corrosion protection.
At least every spring, flush these
materials from the underbody
with plain water. Clean any areas
where mud and debris can collect.
Dirt packed in close areas of the
frame should be loosened before
being flushed. Your dealer or an
underbody car washing system
can do this.

Black plate (112,1)GMC Sierra Owner Manual - 2011
10-112 Vehicle Care
Underbody Maintenance
Chemicals used for ice and snow
removal and dust control can collect
on the underbody. If these are not
removed, corrosion and rust can
develop on the underbody parts
such as fuel lines, frame, floor pan,
and exhaust system even though
they have corrosion protection.
At least every spring, flush these
materials from the underbody
with plain water. Clean any areas
where mud and debris can collect.
Dirt packed in close areas of the
frame should be loosened before
being flushed. Your dealer or an
underbody car washing system
can do this.
Chemical Paint Spotting
Some weather and atmospheric
conditions can create a chemical
fallout. Airborne pollutants can fall
upon and attack painted surfaces
on the vehicle. This damage can
take two forms: blotchy, ring-shaped
discolorations, and small, irregular
dark spots etched into the paint
surface.
Although no defect in the paint job
causes this, we will repair, at no
charge to the owner, the surfaces
of new vehicles damaged by this
fallout condition within 12 months
or 20 000 km (12,000 miles) of
purchase, whichever occurs first.
Interior Care
The interior will continue to look
its best if it is cleaned often. Dust
and dirt can accumulate on the
upholstery and cause damage
to the carpet, fabric, leather, and
plastic surfaces. Stains should be
removed quickly as extreme heat
could cause them to set rapidly.
Lighter colored interiors may
require more frequent cleaning.
Newspapers and garments that can
transfer color to home furnishings
can also transfer color to the
interior.
Remove dust from small buttons
and knobs with a small brush with
soft bristles.

Black plate (113,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-113
Your dealer has products for
cleaning the interior. When cleaning
the interior, only use cleaners
specifically designed for the
surfaces that are being cleaned.
Permanent damage can result
from using cleaners on surfaces
for which they were not intended.
Apply the cleaner directly to the
cleaning cloth to prevent over-spray.
Remove any accidental over-spray
from other surfaces immediately.
Notice:Using abrasive cleaners
when cleaning glass surfaces on
the vehicle, could scratch the
glass and/or cause damage to
the rear window defogger. When
cleaning the glass on the vehicle,
use only a soft cloth and glass
cleaner. Cleaners can contain solvents that
can become concentrated in the
interior. Before using cleaners,
read and adhere to all safety
instructions on the label. While
cleaning the interior, maintain
adequate ventilation by opening
the doors and windows.
Do not clean the interior using the
following cleaners or techniques:
.Never use a knife or any other
sharp object to remove a soil
from any interior surface.
.Never use a stiff brush. It can
cause damage to the interior
surfaces.
.Never apply heavy pressure or
rub aggressively with a cleaning
cloth. Use of heavy pressure can
damage the interior and does
not improve the effectiveness
of soil removal.
.Use only mild, neutral-pH soaps.
Avoid laundry detergents
or dishwashing soaps with
degreasers. Using too much
soap will leave a residue that
leaves streaks and attracts
dirt. For liquid cleaners, about
20 drops per 3.78 L (1 gal) of
water is a good guide.
.Do not heavily saturate the
upholstery while cleaning.
.Cleaners that contain solvents
can damage the interior.

Black plate (114,1)GMC Sierra Owner Manual - 2011
10-114 Vehicle Care
Fabric/Carpet
Use a vacuum cleaner with a soft
brush attachment to remove dust
and loose dirt. A canister vacuum
with a beater bar in the nozzle
may only be used on floor carpet
and carpeted floor mats. For soils,
always try to remove them first with
plain water or club soda. Before
cleaning, gently remove as much
of the soil as possible using one
of the following techniques:
.For liquids: gently blot the
remaining soil with a paper
towel. Allow the soil to absorb
into the paper towel until no
more can be removed.
.For solid dry soils: remove as
much as possible and then
vacuum.
To clean:
1. Saturate a lint-free, clean white cloth with water or club soda.
2. Remove excess moisture. 3. Start on the outside edge of the
soil and gently rub toward the
center. Continue cleaning, using
a clean area of the cloth each
time it becomes soiled.
4. Continue to gently rub the soiled area.
5. If the soil is not completely removed, use a mild soap
solution and repeat the cleaning
process that was used with plain
water.
If any of the soil remains, a
commercial fabric cleaner or spot
lifter may be necessary. Test a small
hidden area for colorfastness before
using a commercial upholstery
cleaner or spot lifter. If the locally
cleaned area gives any impression
that a ring formation may result,
clean the entire surface.
A paper towel can be used to blot
excess moisture from the fabric or
carpet after the cleaning process.
Leather/Leatherette
Leather, and lighter colored leather
in particular, will need more frequent
cleaning to prevent the buildup of
dust, dirt, and colors transferred
from other items so that these do
not become permanent stains.
To remove dust, a soft cloth
dampened with water can be used.
If a more thorough cleaning is
necessary, a soft cloth dampened
with a mild soap solution can
be used. Your dealer has a GM
approved leather cleaner available
that provides superior cleaning
performance when used regularly
on finished automotive leathers.
Allow the leather to dry naturally.
Do not use heat, steam, spot lifters
or spot removers, or shoe polish on
leather. Many commercial leather
cleaners and coatings that are
sold to preserve and protect leather
may permanently change the
appearance and feel of the leather
and are not recommended.

Black plate (115,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-115
Do not use silicone or wax-based
products, or those containing
organic solvents to clean the
interior because they can alter
the appearance by increasing the
gloss in a non-uniform manner.
Instrument Panel, Vinyl and
other Plastic Surfaces
To remove dust, a soft cloth
dampened with water can be
used. If a more thorough cleaning
is necessary, a clean soft cloth
dampened with a mild soap solution
can be used to gently remove dust
and dirt. Never use spot lifters
or removers on plastic surfaces.
Many commercial cleaners and
coatings that are sold to preserve
and protect soft plastic surfaces
may permanently change the
appearance and feel of the interior
and are not recommended. Do not
use silicone or wax-based products,
or those containing organic solventsto clean the interior because they
can alter the appearance by
increasing the gloss in a
non-uniform manner.
Some commercial products may
increase gloss on the instrument
panel. The increase in gloss may
cause annoying reflections in the
windshield and even make it difficult
to see through the windshield under
certain conditions.
Notice::
Air fresheners contain
solvents that may cause damage
to plastics and painted surfaces.
Follow the manufacturer ’s
instructions when using air
fresheners in the vehicle. If air
freshener comes in contact with
paint or a plastic surface, blot
immediately with a soft cloth.
Damage caused by using air
fresheners would not be covered
by the vehicle warrant.
Care of Safety Belts
Keep belts clean and dry.
{WARNING
Do not bleach or dye safety belts.
It may severely weaken them.
In a crash, they might not be able
to provide adequate protection.
Clean safety belts only with mild
soap and lukewarm water.

Black plate (116,1)GMC Sierra Owner Manual - 2011
10-116 Vehicle Care
Floor Mats
{WARNING
If a floor mat is the wrong size or
is not properly installed, it can
interfere with the accelerator
pedal and/or brake pedal.
Interference with the pedals can
cause unintended acceleration
and/or increased stopping
distance which can cause a crash
and injury. Make sure the floor
mat does not interfere with the
accelerator or brake pedal.Use the following guidelines for
proper floor mat usage.
.The original equipment floor
mats were designed for the
vehicle. If the floor mats need
replacing, it is recommended
that GM certified floor mats be
purchased. Non-GM floor mats
may not fit properly and may
interfere with the accelerator or
brake pedal. Always check that
the floor mats do not interfere
with the pedals.
.Use the floor mat with the
correct side up. Do not turn
it over.
.Do not place anything on top of
the driver side floor mat.
.Use only a single floor mat on
the driver side.
.Do not place one floor mat on
top of another.